File: | projects/openmp/runtime/src/kmp_tasking.cpp |
Warning: | line 3952, column 14 Value stored to 'upper' during its initialization is never read |
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1 | /* |
2 | * kmp_tasking.cpp -- OpenMP 3.0 tasking support. |
3 | */ |
4 | |
5 | //===----------------------------------------------------------------------===// |
6 | // |
7 | // The LLVM Compiler Infrastructure |
8 | // |
9 | // This file is dual licensed under the MIT and the University of Illinois Open |
10 | // Source Licenses. See LICENSE.txt for details. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #include "kmp.h" |
15 | #include "kmp_i18n.h" |
16 | #include "kmp_itt.h" |
17 | #include "kmp_stats.h" |
18 | #include "kmp_wait_release.h" |
19 | |
20 | #if OMPT_SUPPORT1 |
21 | #include "ompt-specific.h" |
22 | #endif |
23 | |
24 | #include "tsan_annotations.h" |
25 | |
26 | /* forward declaration */ |
27 | static void __kmp_enable_tasking(kmp_task_team_t *task_team, |
28 | kmp_info_t *this_thr); |
29 | static void __kmp_alloc_task_deque(kmp_info_t *thread, |
30 | kmp_thread_data_t *thread_data); |
31 | static int __kmp_realloc_task_threads_data(kmp_info_t *thread, |
32 | kmp_task_team_t *task_team); |
33 | |
34 | #ifdef OMP_45_ENABLED(50 >= 45) |
35 | static void __kmp_bottom_half_finish_proxy(kmp_int32 gtid, kmp_task_t *ptask); |
36 | #endif |
37 | |
38 | #ifdef BUILD_TIED_TASK_STACK |
39 | |
40 | // __kmp_trace_task_stack: print the tied tasks from the task stack in order |
41 | // from top do bottom |
42 | // |
43 | // gtid: global thread identifier for thread containing stack |
44 | // thread_data: thread data for task team thread containing stack |
45 | // threshold: value above which the trace statement triggers |
46 | // location: string identifying call site of this function (for trace) |
47 | static void __kmp_trace_task_stack(kmp_int32 gtid, |
48 | kmp_thread_data_t *thread_data, |
49 | int threshold, char *location) { |
50 | kmp_task_stack_t *task_stack = &thread_data->td.td_susp_tied_tasks; |
51 | kmp_taskdata_t **stack_top = task_stack->ts_top; |
52 | kmp_int32 entries = task_stack->ts_entries; |
53 | kmp_taskdata_t *tied_task; |
54 | |
55 | KA_TRACE(if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(start): location = %s, gtid = %d, entries = %d, " "first_block = %p, stack_top = %p \n", location, gtid, entries , task_stack->ts_first_block, stack_top); } |
56 | threshold,if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(start): location = %s, gtid = %d, entries = %d, " "first_block = %p, stack_top = %p \n", location, gtid, entries , task_stack->ts_first_block, stack_top); } |
57 | ("__kmp_trace_task_stack(start): location = %s, gtid = %d, entries = %d, "if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(start): location = %s, gtid = %d, entries = %d, " "first_block = %p, stack_top = %p \n", location, gtid, entries , task_stack->ts_first_block, stack_top); } |
58 | "first_block = %p, stack_top = %p \n",if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(start): location = %s, gtid = %d, entries = %d, " "first_block = %p, stack_top = %p \n", location, gtid, entries , task_stack->ts_first_block, stack_top); } |
59 | location, gtid, entries, task_stack->ts_first_block, stack_top))if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(start): location = %s, gtid = %d, entries = %d, " "first_block = %p, stack_top = %p \n", location, gtid, entries , task_stack->ts_first_block, stack_top); }; |
60 | |
61 | KMP_DEBUG_ASSERT(stack_top != NULL)((stack_top != __null) ? 0 : __kmp_debug_assert("stack_top != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 61)); |
62 | KMP_DEBUG_ASSERT(entries > 0)((entries > 0) ? 0 : __kmp_debug_assert("entries > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 62)); |
63 | |
64 | while (entries != 0) { |
65 | KMP_DEBUG_ASSERT(stack_top != &task_stack->ts_first_block.sb_block[0])((stack_top != &task_stack->ts_first_block.sb_block[0] ) ? 0 : __kmp_debug_assert("stack_top != &task_stack->ts_first_block.sb_block[0]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 65)); |
66 | // fix up ts_top if we need to pop from previous block |
67 | if (entries & TASK_STACK_INDEX_MASK == 0) { |
68 | kmp_stack_block_t *stack_block = (kmp_stack_block_t *)(stack_top); |
69 | |
70 | stack_block = stack_block->sb_prev; |
71 | stack_top = &stack_block->sb_block[TASK_STACK_BLOCK_SIZE]; |
72 | } |
73 | |
74 | // finish bookkeeping |
75 | stack_top--; |
76 | entries--; |
77 | |
78 | tied_task = *stack_top; |
79 | |
80 | KMP_DEBUG_ASSERT(tied_task != NULL)((tied_task != __null) ? 0 : __kmp_debug_assert("tied_task != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 80)); |
81 | KMP_DEBUG_ASSERT(tied_task->td_flags.tasktype == TASK_TIED)((tied_task->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("tied_task->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 81)); |
82 | |
83 | KA_TRACE(threshold,if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(%s): gtid=%d, entry=%d, " "stack_top=%p, tied_task=%p\n", location, gtid, entries, stack_top , tied_task); } |
84 | ("__kmp_trace_task_stack(%s): gtid=%d, entry=%d, "if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(%s): gtid=%d, entry=%d, " "stack_top=%p, tied_task=%p\n", location, gtid, entries, stack_top , tied_task); } |
85 | "stack_top=%p, tied_task=%p\n",if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(%s): gtid=%d, entry=%d, " "stack_top=%p, tied_task=%p\n", location, gtid, entries, stack_top , tied_task); } |
86 | location, gtid, entries, stack_top, tied_task))if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(%s): gtid=%d, entry=%d, " "stack_top=%p, tied_task=%p\n", location, gtid, entries, stack_top , tied_task); }; |
87 | } |
88 | KMP_DEBUG_ASSERT(stack_top == &task_stack->ts_first_block.sb_block[0])((stack_top == &task_stack->ts_first_block.sb_block[0] ) ? 0 : __kmp_debug_assert("stack_top == &task_stack->ts_first_block.sb_block[0]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 88)); |
89 | |
90 | KA_TRACE(threshold,if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(exit): location = %s, gtid = %d\n" , location, gtid); } |
91 | ("__kmp_trace_task_stack(exit): location = %s, gtid = %d\n",if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(exit): location = %s, gtid = %d\n" , location, gtid); } |
92 | location, gtid))if (kmp_a_debug >= threshold) { __kmp_debug_printf ("__kmp_trace_task_stack(exit): location = %s, gtid = %d\n" , location, gtid); }; |
93 | } |
94 | |
95 | // __kmp_init_task_stack: initialize the task stack for the first time |
96 | // after a thread_data structure is created. |
97 | // It should not be necessary to do this again (assuming the stack works). |
98 | // |
99 | // gtid: global thread identifier of calling thread |
100 | // thread_data: thread data for task team thread containing stack |
101 | static void __kmp_init_task_stack(kmp_int32 gtid, |
102 | kmp_thread_data_t *thread_data) { |
103 | kmp_task_stack_t *task_stack = &thread_data->td.td_susp_tied_tasks; |
104 | kmp_stack_block_t *first_block; |
105 | |
106 | // set up the first block of the stack |
107 | first_block = &task_stack->ts_first_block; |
108 | task_stack->ts_top = (kmp_taskdata_t **)first_block; |
109 | memset((void *)first_block, '\0', |
110 | TASK_STACK_BLOCK_SIZE * sizeof(kmp_taskdata_t *)); |
111 | |
112 | // initialize the stack to be empty |
113 | task_stack->ts_entries = TASK_STACK_EMPTY; |
114 | first_block->sb_next = NULL__null; |
115 | first_block->sb_prev = NULL__null; |
116 | } |
117 | |
118 | // __kmp_free_task_stack: free the task stack when thread_data is destroyed. |
119 | // |
120 | // gtid: global thread identifier for calling thread |
121 | // thread_data: thread info for thread containing stack |
122 | static void __kmp_free_task_stack(kmp_int32 gtid, |
123 | kmp_thread_data_t *thread_data) { |
124 | kmp_task_stack_t *task_stack = &thread_data->td.td_susp_tied_tasks; |
125 | kmp_stack_block_t *stack_block = &task_stack->ts_first_block; |
126 | |
127 | KMP_DEBUG_ASSERT(task_stack->ts_entries == TASK_STACK_EMPTY)((task_stack->ts_entries == TASK_STACK_EMPTY) ? 0 : __kmp_debug_assert ("task_stack->ts_entries == TASK_STACK_EMPTY", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 127)); |
128 | // free from the second block of the stack |
129 | while (stack_block != NULL__null) { |
130 | kmp_stack_block_t *next_block = (stack_block) ? stack_block->sb_next : NULL__null; |
131 | |
132 | stack_block->sb_next = NULL__null; |
133 | stack_block->sb_prev = NULL__null; |
134 | if (stack_block != &task_stack->ts_first_block) { |
135 | __kmp_thread_free(thread,___kmp_thread_free((thread), (stack_block), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 136) |
136 | stack_block)___kmp_thread_free((thread), (stack_block), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 136); // free the block, if not the first |
137 | } |
138 | stack_block = next_block; |
139 | } |
140 | // initialize the stack to be empty |
141 | task_stack->ts_entries = 0; |
142 | task_stack->ts_top = NULL__null; |
143 | } |
144 | |
145 | // __kmp_push_task_stack: Push the tied task onto the task stack. |
146 | // Grow the stack if necessary by allocating another block. |
147 | // |
148 | // gtid: global thread identifier for calling thread |
149 | // thread: thread info for thread containing stack |
150 | // tied_task: the task to push on the stack |
151 | static void __kmp_push_task_stack(kmp_int32 gtid, kmp_info_t *thread, |
152 | kmp_taskdata_t *tied_task) { |
153 | // GEH - need to consider what to do if tt_threads_data not allocated yet |
154 | kmp_thread_data_t *thread_data = |
155 | &thread->th.th_task_team->tt.tt_threads_data[__kmp_tid_from_gtid(gtid)((((gtid) >= 0) ? 0 : __kmp_debug_assert("(gtid) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 155)), __kmp_threads[(gtid)]->th.th_info.ds.ds_tid)]; |
156 | kmp_task_stack_t *task_stack = &thread_data->td.td_susp_tied_tasks; |
157 | |
158 | if (tied_task->td_flags.team_serial || tied_task->td_flags.tasking_ser) { |
159 | return; // Don't push anything on stack if team or team tasks are serialized |
160 | } |
161 | |
162 | KMP_DEBUG_ASSERT(tied_task->td_flags.tasktype == TASK_TIED)((tied_task->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("tied_task->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 162)); |
163 | KMP_DEBUG_ASSERT(task_stack->ts_top != NULL)((task_stack->ts_top != __null) ? 0 : __kmp_debug_assert("task_stack->ts_top != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 163)); |
164 | |
165 | KA_TRACE(20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task_stack(enter): GTID: %d; THREAD: %p; TASK: %p\n" , gtid, thread, tied_task); } |
166 | ("__kmp_push_task_stack(enter): GTID: %d; THREAD: %p; TASK: %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task_stack(enter): GTID: %d; THREAD: %p; TASK: %p\n" , gtid, thread, tied_task); } |
167 | gtid, thread, tied_task))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task_stack(enter): GTID: %d; THREAD: %p; TASK: %p\n" , gtid, thread, tied_task); }; |
168 | // Store entry |
169 | *(task_stack->ts_top) = tied_task; |
170 | |
171 | // Do bookkeeping for next push |
172 | task_stack->ts_top++; |
173 | task_stack->ts_entries++; |
174 | |
175 | if (task_stack->ts_entries & TASK_STACK_INDEX_MASK == 0) { |
176 | // Find beginning of this task block |
177 | kmp_stack_block_t *stack_block = |
178 | (kmp_stack_block_t *)(task_stack->ts_top - TASK_STACK_BLOCK_SIZE); |
179 | |
180 | // Check if we already have a block |
181 | if (stack_block->sb_next != |
182 | NULL__null) { // reset ts_top to beginning of next block |
183 | task_stack->ts_top = &stack_block->sb_next->sb_block[0]; |
184 | } else { // Alloc new block and link it up |
185 | kmp_stack_block_t *new_block = (kmp_stack_block_t *)__kmp_thread_calloc( |
186 | thread, sizeof(kmp_stack_block_t)); |
187 | |
188 | task_stack->ts_top = &new_block->sb_block[0]; |
189 | stack_block->sb_next = new_block; |
190 | new_block->sb_prev = stack_block; |
191 | new_block->sb_next = NULL__null; |
192 | |
193 | KA_TRACE(if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_push_task_stack(): GTID: %d; TASK: %p; Alloc new block: %p\n" , gtid, tied_task, new_block); } |
194 | 30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_push_task_stack(): GTID: %d; TASK: %p; Alloc new block: %p\n" , gtid, tied_task, new_block); } |
195 | ("__kmp_push_task_stack(): GTID: %d; TASK: %p; Alloc new block: %p\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_push_task_stack(): GTID: %d; TASK: %p; Alloc new block: %p\n" , gtid, tied_task, new_block); } |
196 | gtid, tied_task, new_block))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_push_task_stack(): GTID: %d; TASK: %p; Alloc new block: %p\n" , gtid, tied_task, new_block); }; |
197 | } |
198 | } |
199 | KA_TRACE(20, ("__kmp_push_task_stack(exit): GTID: %d; TASK: %p\n", gtid,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task_stack(exit): GTID: %d; TASK: %p\n" , gtid, tied_task); } |
200 | tied_task))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task_stack(exit): GTID: %d; TASK: %p\n" , gtid, tied_task); }; |
201 | } |
202 | |
203 | // __kmp_pop_task_stack: Pop the tied task from the task stack. Don't return |
204 | // the task, just check to make sure it matches the ending task passed in. |
205 | // |
206 | // gtid: global thread identifier for the calling thread |
207 | // thread: thread info structure containing stack |
208 | // tied_task: the task popped off the stack |
209 | // ending_task: the task that is ending (should match popped task) |
210 | static void __kmp_pop_task_stack(kmp_int32 gtid, kmp_info_t *thread, |
211 | kmp_taskdata_t *ending_task) { |
212 | // GEH - need to consider what to do if tt_threads_data not allocated yet |
213 | kmp_thread_data_t *thread_data = |
214 | &thread->th.th_task_team->tt_threads_data[__kmp_tid_from_gtid(gtid)((((gtid) >= 0) ? 0 : __kmp_debug_assert("(gtid) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 214)), __kmp_threads[(gtid)]->th.th_info.ds.ds_tid)]; |
215 | kmp_task_stack_t *task_stack = &thread_data->td.td_susp_tied_tasks; |
216 | kmp_taskdata_t *tied_task; |
217 | |
218 | if (ending_task->td_flags.team_serial || ending_task->td_flags.tasking_ser) { |
219 | // Don't pop anything from stack if team or team tasks are serialized |
220 | return; |
221 | } |
222 | |
223 | KMP_DEBUG_ASSERT(task_stack->ts_top != NULL)((task_stack->ts_top != __null) ? 0 : __kmp_debug_assert("task_stack->ts_top != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 223)); |
224 | KMP_DEBUG_ASSERT(task_stack->ts_entries > 0)((task_stack->ts_entries > 0) ? 0 : __kmp_debug_assert( "task_stack->ts_entries > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 224)); |
225 | |
226 | KA_TRACE(20, ("__kmp_pop_task_stack(enter): GTID: %d; THREAD: %p\n", gtid,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_pop_task_stack(enter): GTID: %d; THREAD: %p\n" , gtid, thread); } |
227 | thread))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_pop_task_stack(enter): GTID: %d; THREAD: %p\n" , gtid, thread); }; |
228 | |
229 | // fix up ts_top if we need to pop from previous block |
230 | if (task_stack->ts_entries & TASK_STACK_INDEX_MASK == 0) { |
231 | kmp_stack_block_t *stack_block = (kmp_stack_block_t *)(task_stack->ts_top); |
232 | |
233 | stack_block = stack_block->sb_prev; |
234 | task_stack->ts_top = &stack_block->sb_block[TASK_STACK_BLOCK_SIZE]; |
235 | } |
236 | |
237 | // finish bookkeeping |
238 | task_stack->ts_top--; |
239 | task_stack->ts_entries--; |
240 | |
241 | tied_task = *(task_stack->ts_top); |
242 | |
243 | KMP_DEBUG_ASSERT(tied_task != NULL)((tied_task != __null) ? 0 : __kmp_debug_assert("tied_task != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 243)); |
244 | KMP_DEBUG_ASSERT(tied_task->td_flags.tasktype == TASK_TIED)((tied_task->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("tied_task->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 244)); |
245 | KMP_DEBUG_ASSERT(tied_task == ending_task)((tied_task == ending_task) ? 0 : __kmp_debug_assert("tied_task == ending_task" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 245)); // If we built the stack correctly |
246 | |
247 | KA_TRACE(20, ("__kmp_pop_task_stack(exit): GTID: %d; TASK: %p\n", gtid,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_pop_task_stack(exit): GTID: %d; TASK: %p\n" , gtid, tied_task); } |
248 | tied_task))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_pop_task_stack(exit): GTID: %d; TASK: %p\n" , gtid, tied_task); }; |
249 | return; |
250 | } |
251 | #endif /* BUILD_TIED_TASK_STACK */ |
252 | |
253 | // __kmp_push_task: Add a task to the thread's deque |
254 | static kmp_int32 __kmp_push_task(kmp_int32 gtid, kmp_task_t *task) { |
255 | kmp_info_t *thread = __kmp_threads[gtid]; |
256 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
257 | kmp_task_team_t *task_team = thread->th.th_task_team; |
258 | kmp_int32 tid = __kmp_tid_from_gtid(gtid)((((gtid) >= 0) ? 0 : __kmp_debug_assert("(gtid) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 258)), __kmp_threads[(gtid)]->th.th_info.ds.ds_tid); |
259 | kmp_thread_data_t *thread_data; |
260 | |
261 | KA_TRACE(20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d trying to push task %p.\n" , gtid, taskdata); } |
262 | ("__kmp_push_task: T#%d trying to push task %p.\n", gtid, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d trying to push task %p.\n" , gtid, taskdata); }; |
263 | |
264 | if (taskdata->td_flags.tiedness == TASK_UNTIED0) { |
265 | // untied task needs to increment counter so that the task structure is not |
266 | // freed prematurely |
267 | kmp_int32 counter = 1 + KMP_ATOMIC_INC(&taskdata->td_untied_count)(&taskdata->td_untied_count)->fetch_add(1, std::memory_order_acq_rel ); |
268 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d untied_count (%d) incremented for task %p\n" , gtid, counter, taskdata); } |
269 | 20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d untied_count (%d) incremented for task %p\n" , gtid, counter, taskdata); } |
270 | ("__kmp_push_task: T#%d untied_count (%d) incremented for task %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d untied_count (%d) incremented for task %p\n" , gtid, counter, taskdata); } |
271 | gtid, counter, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d untied_count (%d) incremented for task %p\n" , gtid, counter, taskdata); }; |
272 | } |
273 | |
274 | // The first check avoids building task_team thread data if serialized |
275 | if (taskdata->td_flags.task_serial) { |
276 | KA_TRACE(20, ("__kmp_push_task: T#%d team serialized; returning "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d team serialized; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); } |
277 | "TASK_NOT_PUSHED for task %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d team serialized; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); } |
278 | gtid, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d team serialized; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); }; |
279 | return TASK_NOT_PUSHED1; |
280 | } |
281 | |
282 | // Now that serialized tasks have returned, we can assume that we are not in |
283 | // immediate exec mode |
284 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 284)); |
285 | if (!KMP_TASKING_ENABLED(task_team)(((task_team)->tt.tt_found_tasks) == (!0))) { |
286 | __kmp_enable_tasking(task_team, thread); |
287 | } |
288 | KMP_DEBUG_ASSERT(TCR_4(task_team->tt.tt_found_tasks) == TRUE)(((task_team->tt.tt_found_tasks) == (!0)) ? 0 : __kmp_debug_assert ("(task_team->tt.tt_found_tasks) == (!0)", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 288)); |
289 | KMP_DEBUG_ASSERT(TCR_PTR(task_team->tt.tt_threads_data) != NULL)((((void *)(task_team->tt.tt_threads_data)) != __null) ? 0 : __kmp_debug_assert("((void *)(task_team->tt.tt_threads_data)) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 289)); |
290 | |
291 | // Find tasking deque specific to encountering thread |
292 | thread_data = &task_team->tt.tt_threads_data[tid]; |
293 | |
294 | // No lock needed since only owner can allocate |
295 | if (thread_data->td.td_deque == NULL__null) { |
296 | __kmp_alloc_task_deque(thread, thread_data); |
297 | } |
298 | |
299 | // Check if deque is full |
300 | if (TCR_4(thread_data->td.td_deque_ntasks)(thread_data->td.td_deque_ntasks) >= |
301 | TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size)) { |
302 | KA_TRACE(20, ("__kmp_push_task: T#%d deque is full; returning "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d deque is full; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); } |
303 | "TASK_NOT_PUSHED for task %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d deque is full; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); } |
304 | gtid, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d deque is full; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); }; |
305 | return TASK_NOT_PUSHED1; |
306 | } |
307 | |
308 | // Lock the deque for the task push operation |
309 | __kmp_acquire_bootstrap_lock(&thread_data->td.td_deque_lock); |
310 | |
311 | #if OMP_45_ENABLED(50 >= 45) |
312 | // Need to recheck as we can get a proxy task from a thread outside of OpenMP |
313 | if (TCR_4(thread_data->td.td_deque_ntasks)(thread_data->td.td_deque_ntasks) >= |
314 | TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size)) { |
315 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
316 | KA_TRACE(20, ("__kmp_push_task: T#%d deque is full on 2nd check; returning "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d deque is full on 2nd check; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); } |
317 | "TASK_NOT_PUSHED for task %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d deque is full on 2nd check; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); } |
318 | gtid, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d deque is full on 2nd check; returning " "TASK_NOT_PUSHED for task %p\n", gtid, taskdata); }; |
319 | return TASK_NOT_PUSHED1; |
320 | } |
321 | #else |
322 | // Must have room since no thread can add tasks but calling thread |
323 | KMP_DEBUG_ASSERT(TCR_4(thread_data->td.td_deque_ntasks) <(((thread_data->td.td_deque_ntasks) < ((thread_data-> td).td_deque_size)) ? 0 : __kmp_debug_assert("(thread_data->td.td_deque_ntasks) < ((thread_data->td).td_deque_size)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 324)) |
324 | TASK_DEQUE_SIZE(thread_data->td))(((thread_data->td.td_deque_ntasks) < ((thread_data-> td).td_deque_size)) ? 0 : __kmp_debug_assert("(thread_data->td.td_deque_ntasks) < ((thread_data->td).td_deque_size)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 324)); |
325 | #endif |
326 | |
327 | thread_data->td.td_deque[thread_data->td.td_deque_tail] = |
328 | taskdata; // Push taskdata |
329 | // Wrap index. |
330 | thread_data->td.td_deque_tail = |
331 | (thread_data->td.td_deque_tail + 1) & TASK_DEQUE_MASK(thread_data->td)((thread_data->td).td_deque_size - 1); |
332 | TCW_4(thread_data->td.td_deque_ntasks,(thread_data->td.td_deque_ntasks) = ((thread_data->td.td_deque_ntasks ) + 1) |
333 | TCR_4(thread_data->td.td_deque_ntasks) + 1)(thread_data->td.td_deque_ntasks) = ((thread_data->td.td_deque_ntasks ) + 1); // Adjust task count |
334 | |
335 | KA_TRACE(20, ("__kmp_push_task: T#%d returning TASK_SUCCESSFULLY_PUSHED: "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d returning TASK_SUCCESSFULLY_PUSHED: " "task=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data ->td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); } |
336 | "task=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d returning TASK_SUCCESSFULLY_PUSHED: " "task=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data ->td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); } |
337 | gtid, taskdata, thread_data->td.td_deque_ntasks,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d returning TASK_SUCCESSFULLY_PUSHED: " "task=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data ->td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); } |
338 | thread_data->td.td_deque_head, thread_data->td.td_deque_tail))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_push_task: T#%d returning TASK_SUCCESSFULLY_PUSHED: " "task=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data ->td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); }; |
339 | |
340 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
341 | |
342 | return TASK_SUCCESSFULLY_PUSHED0; |
343 | } |
344 | |
345 | // __kmp_pop_current_task_from_thread: set up current task from called thread |
346 | // when team ends |
347 | // |
348 | // this_thr: thread structure to set current_task in. |
349 | void __kmp_pop_current_task_from_thread(kmp_info_t *this_thr) { |
350 | KF_TRACE(10, ("__kmp_pop_current_task_from_thread(enter): T#%d "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(enter): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
351 | "this_thread=%p, curtask=%p, "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(enter): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
352 | "curtask_parent=%p\n",if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(enter): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
353 | 0, this_thr, this_thr->th.th_current_task,if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(enter): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
354 | this_thr->th.th_current_task->td_parent))if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(enter): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); }; |
355 | |
356 | this_thr->th.th_current_task = this_thr->th.th_current_task->td_parent; |
357 | |
358 | KF_TRACE(10, ("__kmp_pop_current_task_from_thread(exit): T#%d "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(exit): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
359 | "this_thread=%p, curtask=%p, "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(exit): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
360 | "curtask_parent=%p\n",if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(exit): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
361 | 0, this_thr, this_thr->th.th_current_task,if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(exit): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); } |
362 | this_thr->th.th_current_task->td_parent))if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_pop_current_task_from_thread(exit): T#%d " "this_thread=%p, curtask=%p, " "curtask_parent=%p\n", 0, this_thr , this_thr->th.th_current_task, this_thr->th.th_current_task ->td_parent); }; |
363 | } |
364 | |
365 | // __kmp_push_current_task_to_thread: set up current task in called thread for a |
366 | // new team |
367 | // |
368 | // this_thr: thread structure to set up |
369 | // team: team for implicit task data |
370 | // tid: thread within team to set up |
371 | void __kmp_push_current_task_to_thread(kmp_info_t *this_thr, kmp_team_t *team, |
372 | int tid) { |
373 | // current task of the thread is a parent of the new just created implicit |
374 | // tasks of new team |
375 | KF_TRACE(10, ("__kmp_push_current_task_to_thread(enter): T#%d this_thread=%p "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(enter): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
376 | "curtask=%p "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(enter): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
377 | "parent_task=%p\n",if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(enter): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
378 | tid, this_thr, this_thr->th.th_current_task,if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(enter): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
379 | team->t.t_implicit_task_taskdata[tid].td_parent))if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(enter): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); }; |
380 | |
381 | KMP_DEBUG_ASSERT(this_thr != NULL)((this_thr != __null) ? 0 : __kmp_debug_assert("this_thr != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 381)); |
382 | |
383 | if (tid == 0) { |
384 | if (this_thr->th.th_current_task != &team->t.t_implicit_task_taskdata[0]) { |
385 | team->t.t_implicit_task_taskdata[0].td_parent = |
386 | this_thr->th.th_current_task; |
387 | this_thr->th.th_current_task = &team->t.t_implicit_task_taskdata[0]; |
388 | } |
389 | } else { |
390 | team->t.t_implicit_task_taskdata[tid].td_parent = |
391 | team->t.t_implicit_task_taskdata[0].td_parent; |
392 | this_thr->th.th_current_task = &team->t.t_implicit_task_taskdata[tid]; |
393 | } |
394 | |
395 | KF_TRACE(10, ("__kmp_push_current_task_to_thread(exit): T#%d this_thread=%p "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(exit): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
396 | "curtask=%p "if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(exit): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
397 | "parent_task=%p\n",if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(exit): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
398 | tid, this_thr, this_thr->th.th_current_task,if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(exit): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); } |
399 | team->t.t_implicit_task_taskdata[tid].td_parent))if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_push_current_task_to_thread(exit): T#%d this_thread=%p " "curtask=%p " "parent_task=%p\n", tid, this_thr, this_thr-> th.th_current_task, team->t.t_implicit_task_taskdata[tid]. td_parent); }; |
400 | } |
401 | |
402 | // __kmp_task_start: bookkeeping for a task starting execution |
403 | // |
404 | // GTID: global thread id of calling thread |
405 | // task: task starting execution |
406 | // current_task: task suspending |
407 | static void __kmp_task_start(kmp_int32 gtid, kmp_task_t *task, |
408 | kmp_taskdata_t *current_task) { |
409 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
410 | kmp_info_t *thread = __kmp_threads[gtid]; |
411 | |
412 | KA_TRACE(10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_start(enter): T#%d starting task %p: current_task=%p\n" , gtid, taskdata, current_task); } |
413 | ("__kmp_task_start(enter): T#%d starting task %p: current_task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_start(enter): T#%d starting task %p: current_task=%p\n" , gtid, taskdata, current_task); } |
414 | gtid, taskdata, current_task))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_start(enter): T#%d starting task %p: current_task=%p\n" , gtid, taskdata, current_task); }; |
415 | |
416 | KMP_DEBUG_ASSERT(taskdata->td_flags.tasktype == TASK_EXPLICIT)((taskdata->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 416)); |
417 | |
418 | // mark currently executing task as suspended |
419 | // TODO: GEH - make sure root team implicit task is initialized properly. |
420 | // KMP_DEBUG_ASSERT( current_task -> td_flags.executing == 1 ); |
421 | current_task->td_flags.executing = 0; |
422 | |
423 | // Add task to stack if tied |
424 | #ifdef BUILD_TIED_TASK_STACK |
425 | if (taskdata->td_flags.tiedness == TASK_TIED1) { |
426 | __kmp_push_task_stack(gtid, thread, taskdata); |
427 | } |
428 | #endif /* BUILD_TIED_TASK_STACK */ |
429 | |
430 | // mark starting task as executing and as current task |
431 | thread->th.th_current_task = taskdata; |
432 | |
433 | KMP_DEBUG_ASSERT(taskdata->td_flags.started == 0 ||((taskdata->td_flags.started == 0 || taskdata->td_flags .tiedness == 0) ? 0 : __kmp_debug_assert("taskdata->td_flags.started == 0 || taskdata->td_flags.tiedness == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 434)) |
434 | taskdata->td_flags.tiedness == TASK_UNTIED)((taskdata->td_flags.started == 0 || taskdata->td_flags .tiedness == 0) ? 0 : __kmp_debug_assert("taskdata->td_flags.started == 0 || taskdata->td_flags.tiedness == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 434)); |
435 | KMP_DEBUG_ASSERT(taskdata->td_flags.executing == 0 ||((taskdata->td_flags.executing == 0 || taskdata->td_flags .tiedness == 0) ? 0 : __kmp_debug_assert("taskdata->td_flags.executing == 0 || taskdata->td_flags.tiedness == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 436)) |
436 | taskdata->td_flags.tiedness == TASK_UNTIED)((taskdata->td_flags.executing == 0 || taskdata->td_flags .tiedness == 0) ? 0 : __kmp_debug_assert("taskdata->td_flags.executing == 0 || taskdata->td_flags.tiedness == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 436)); |
437 | taskdata->td_flags.started = 1; |
438 | taskdata->td_flags.executing = 1; |
439 | KMP_DEBUG_ASSERT(taskdata->td_flags.complete == 0)((taskdata->td_flags.complete == 0) ? 0 : __kmp_debug_assert ("taskdata->td_flags.complete == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 439)); |
440 | KMP_DEBUG_ASSERT(taskdata->td_flags.freed == 0)((taskdata->td_flags.freed == 0) ? 0 : __kmp_debug_assert( "taskdata->td_flags.freed == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 440)); |
441 | |
442 | // GEH TODO: shouldn't we pass some sort of location identifier here? |
443 | // APT: yes, we will pass location here. |
444 | // need to store current thread state (in a thread or taskdata structure) |
445 | // before setting work_state, otherwise wrong state is set after end of task |
446 | |
447 | KA_TRACE(10, ("__kmp_task_start(exit): T#%d task=%p\n", gtid, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_start(exit): T#%d task=%p\n" , gtid, taskdata); }; |
448 | |
449 | return; |
450 | } |
451 | |
452 | #if OMPT_SUPPORT1 |
453 | //------------------------------------------------------------------------------ |
454 | // __ompt_task_init: |
455 | // Initialize OMPT fields maintained by a task. This will only be called after |
456 | // ompt_start_tool, so we already know whether ompt is enabled or not. |
457 | |
458 | static inline void __ompt_task_init(kmp_taskdata_t *task, int tid) { |
459 | // The calls to __ompt_task_init already have the ompt_enabled condition. |
460 | task->ompt_task_info.task_data.value = 0; |
461 | task->ompt_task_info.frame.exit_frame = NULL__null; |
462 | task->ompt_task_info.frame.enter_frame = NULL__null; |
463 | #if OMP_40_ENABLED(50 >= 40) |
464 | task->ompt_task_info.ndeps = 0; |
465 | task->ompt_task_info.deps = NULL__null; |
466 | #endif /* OMP_40_ENABLED */ |
467 | } |
468 | |
469 | // __ompt_task_start: |
470 | // Build and trigger task-begin event |
471 | static inline void __ompt_task_start(kmp_task_t *task, |
472 | kmp_taskdata_t *current_task, |
473 | kmp_int32 gtid) { |
474 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
475 | ompt_task_status_t status = ompt_task_others; |
476 | if (__kmp_threads[gtid]->th.ompt_thread_info.ompt_task_yielded) { |
477 | status = ompt_task_yield; |
478 | __kmp_threads[gtid]->th.ompt_thread_info.ompt_task_yielded = 0; |
479 | } |
480 | /* let OMPT know that we're about to run this task */ |
481 | if (ompt_enabled.ompt_callback_task_schedule) { |
482 | ompt_callbacks.ompt_callback(ompt_callback_task_schedule)ompt_callback_task_schedule_callback( |
483 | &(current_task->ompt_task_info.task_data), status, |
484 | &(taskdata->ompt_task_info.task_data)); |
485 | } |
486 | taskdata->ompt_task_info.scheduling_parent = current_task; |
487 | } |
488 | |
489 | // __ompt_task_finish: |
490 | // Build and trigger final task-schedule event |
491 | static inline void |
492 | __ompt_task_finish(kmp_task_t *task, kmp_taskdata_t *resumed_task, |
493 | ompt_task_status_t status = ompt_task_complete) { |
494 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
495 | if (__kmp_omp_cancellation && taskdata->td_taskgroup && |
496 | taskdata->td_taskgroup->cancel_request == cancel_taskgroup) { |
497 | status = ompt_task_cancel; |
498 | } |
499 | |
500 | /* let OMPT know that we're returning to the callee task */ |
501 | if (ompt_enabled.ompt_callback_task_schedule) { |
502 | ompt_callbacks.ompt_callback(ompt_callback_task_schedule)ompt_callback_task_schedule_callback( |
503 | &(taskdata->ompt_task_info.task_data), status, |
504 | &((resumed_task ? resumed_task |
505 | : (taskdata->ompt_task_info.scheduling_parent |
506 | ? taskdata->ompt_task_info.scheduling_parent |
507 | : taskdata->td_parent)) |
508 | ->ompt_task_info.task_data)); |
509 | } |
510 | } |
511 | #endif |
512 | |
513 | template <bool ompt> |
514 | static void __kmpc_omp_task_begin_if0_template(ident_t *loc_ref, kmp_int32 gtid, |
515 | kmp_task_t *task, |
516 | void *frame_address, |
517 | void *return_address) { |
518 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
519 | kmp_taskdata_t *current_task = __kmp_threads[gtid]->th.th_current_task; |
520 | |
521 | KA_TRACE(10, ("__kmpc_omp_task_begin_if0(enter): T#%d loc=%p task=%p "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0(enter): T#%d loc=%p task=%p " "current_task=%p\n", gtid, loc_ref, taskdata, current_task); } |
522 | "current_task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0(enter): T#%d loc=%p task=%p " "current_task=%p\n", gtid, loc_ref, taskdata, current_task); } |
523 | gtid, loc_ref, taskdata, current_task))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0(enter): T#%d loc=%p task=%p " "current_task=%p\n", gtid, loc_ref, taskdata, current_task); }; |
524 | |
525 | if (taskdata->td_flags.tiedness == TASK_UNTIED0) { |
526 | // untied task needs to increment counter so that the task structure is not |
527 | // freed prematurely |
528 | kmp_int32 counter = 1 + KMP_ATOMIC_INC(&taskdata->td_untied_count)(&taskdata->td_untied_count)->fetch_add(1, std::memory_order_acq_rel ); |
529 | KA_TRACE(20, ("__kmpc_omp_task_begin_if0: T#%d untied_count (%d) "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0: T#%d untied_count (%d) " "incremented for task %p\n", gtid, counter, taskdata); } |
530 | "incremented for task %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0: T#%d untied_count (%d) " "incremented for task %p\n", gtid, counter, taskdata); } |
531 | gtid, counter, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0: T#%d untied_count (%d) " "incremented for task %p\n", gtid, counter, taskdata); }; |
532 | } |
533 | |
534 | taskdata->td_flags.task_serial = |
535 | 1; // Execute this task immediately, not deferred. |
536 | __kmp_task_start(gtid, task, current_task); |
537 | |
538 | #if OMPT_SUPPORT1 |
539 | if (ompt) { |
540 | if (current_task->ompt_task_info.frame.enter_frame == NULL__null) { |
541 | current_task->ompt_task_info.frame.enter_frame = |
542 | taskdata->ompt_task_info.frame.exit_frame = frame_address; |
543 | } |
544 | if (ompt_enabled.ompt_callback_task_create) { |
545 | ompt_task_info_t *parent_info = &(current_task->ompt_task_info); |
546 | ompt_callbacks.ompt_callback(ompt_callback_task_create)ompt_callback_task_create_callback( |
547 | &(parent_info->task_data), &(parent_info->frame), |
548 | &(taskdata->ompt_task_info.task_data), |
549 | ompt_task_explicit | TASK_TYPE_DETAILS_FORMAT(taskdata)((taskdata->td_flags.task_serial || taskdata->td_flags. tasking_ser) ? ompt_task_undeferred : 0x0) | ((!(taskdata-> td_flags.tiedness)) ? ompt_task_untied : 0x0) | (taskdata-> td_flags.final ? ompt_task_final : 0x0) | (taskdata->td_flags .merged_if0 ? ompt_task_mergeable : 0x0), 0, |
550 | return_address); |
551 | } |
552 | __ompt_task_start(task, current_task, gtid); |
553 | } |
554 | #endif // OMPT_SUPPORT |
555 | |
556 | KA_TRACE(10, ("__kmpc_omp_task_begin_if0(exit): T#%d loc=%p task=%p,\n", gtid,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0(exit): T#%d loc=%p task=%p,\n" , gtid, loc_ref, taskdata); } |
557 | loc_ref, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin_if0(exit): T#%d loc=%p task=%p,\n" , gtid, loc_ref, taskdata); }; |
558 | } |
559 | |
560 | #if OMPT_SUPPORT1 |
561 | OMPT_NOINLINE__attribute__((noinline)) |
562 | static void __kmpc_omp_task_begin_if0_ompt(ident_t *loc_ref, kmp_int32 gtid, |
563 | kmp_task_t *task, |
564 | void *frame_address, |
565 | void *return_address) { |
566 | __kmpc_omp_task_begin_if0_template<true>(loc_ref, gtid, task, frame_address, |
567 | return_address); |
568 | } |
569 | #endif // OMPT_SUPPORT |
570 | |
571 | // __kmpc_omp_task_begin_if0: report that a given serialized task has started |
572 | // execution |
573 | // |
574 | // loc_ref: source location information; points to beginning of task block. |
575 | // gtid: global thread number. |
576 | // task: task thunk for the started task. |
577 | void __kmpc_omp_task_begin_if0(ident_t *loc_ref, kmp_int32 gtid, |
578 | kmp_task_t *task) { |
579 | #if OMPT_SUPPORT1 |
580 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
581 | OMPT_STORE_RETURN_ADDRESS(gtid)if (ompt_enabled.enabled && gtid >= 0 && __kmp_threads [gtid] && !__kmp_threads[gtid]->th.ompt_thread_info .return_address) __kmp_threads[gtid]->th.ompt_thread_info. return_address = __builtin_return_address(0); |
582 | __kmpc_omp_task_begin_if0_ompt(loc_ref, gtid, task, |
583 | OMPT_GET_FRAME_ADDRESS(1)__builtin_frame_address(1), |
584 | OMPT_LOAD_RETURN_ADDRESS(gtid)__ompt_load_return_address(gtid)); |
585 | return; |
586 | } |
587 | #endif |
588 | __kmpc_omp_task_begin_if0_template<false>(loc_ref, gtid, task, NULL__null, NULL__null); |
589 | } |
590 | |
591 | #ifdef TASK_UNUSED |
592 | // __kmpc_omp_task_begin: report that a given task has started execution |
593 | // NEVER GENERATED BY COMPILER, DEPRECATED!!! |
594 | void __kmpc_omp_task_begin(ident_t *loc_ref, kmp_int32 gtid, kmp_task_t *task) { |
595 | kmp_taskdata_t *current_task = __kmp_threads[gtid]->th.th_current_task; |
596 | |
597 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin(enter): T#%d loc=%p task=%p current_task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1), current_task ); } |
598 | 10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin(enter): T#%d loc=%p task=%p current_task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1), current_task ); } |
599 | ("__kmpc_omp_task_begin(enter): T#%d loc=%p task=%p current_task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin(enter): T#%d loc=%p task=%p current_task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1), current_task ); } |
600 | gtid, loc_ref, KMP_TASK_TO_TASKDATA(task), current_task))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin(enter): T#%d loc=%p task=%p current_task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1), current_task ); }; |
601 | |
602 | __kmp_task_start(gtid, task, current_task); |
603 | |
604 | KA_TRACE(10, ("__kmpc_omp_task_begin(exit): T#%d loc=%p task=%p,\n", gtid,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin(exit): T#%d loc=%p task=%p,\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); } |
605 | loc_ref, KMP_TASK_TO_TASKDATA(task)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_begin(exit): T#%d loc=%p task=%p,\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); }; |
606 | return; |
607 | } |
608 | #endif // TASK_UNUSED |
609 | |
610 | // __kmp_free_task: free the current task space and the space for shareds |
611 | // |
612 | // gtid: Global thread ID of calling thread |
613 | // taskdata: task to free |
614 | // thread: thread data structure of caller |
615 | static void __kmp_free_task(kmp_int32 gtid, kmp_taskdata_t *taskdata, |
616 | kmp_info_t *thread) { |
617 | KA_TRACE(30, ("__kmp_free_task: T#%d freeing data from task %p\n", gtid,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_free_task: T#%d freeing data from task %p\n" , gtid, taskdata); } |
618 | taskdata))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_free_task: T#%d freeing data from task %p\n" , gtid, taskdata); }; |
619 | |
620 | // Check to make sure all flags and counters have the correct values |
621 | KMP_DEBUG_ASSERT(taskdata->td_flags.tasktype == TASK_EXPLICIT)((taskdata->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 621)); |
622 | KMP_DEBUG_ASSERT(taskdata->td_flags.executing == 0)((taskdata->td_flags.executing == 0) ? 0 : __kmp_debug_assert ("taskdata->td_flags.executing == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 622)); |
623 | KMP_DEBUG_ASSERT(taskdata->td_flags.complete == 1)((taskdata->td_flags.complete == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.complete == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 623)); |
624 | KMP_DEBUG_ASSERT(taskdata->td_flags.freed == 0)((taskdata->td_flags.freed == 0) ? 0 : __kmp_debug_assert( "taskdata->td_flags.freed == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 624)); |
625 | KMP_DEBUG_ASSERT(taskdata->td_allocated_child_tasks == 0 ||((taskdata->td_allocated_child_tasks == 0 || taskdata-> td_flags.task_serial == 1) ? 0 : __kmp_debug_assert("taskdata->td_allocated_child_tasks == 0 || taskdata->td_flags.task_serial == 1" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 626)) |
626 | taskdata->td_flags.task_serial == 1)((taskdata->td_allocated_child_tasks == 0 || taskdata-> td_flags.task_serial == 1) ? 0 : __kmp_debug_assert("taskdata->td_allocated_child_tasks == 0 || taskdata->td_flags.task_serial == 1" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 626)); |
627 | KMP_DEBUG_ASSERT(taskdata->td_incomplete_child_tasks == 0)((taskdata->td_incomplete_child_tasks == 0) ? 0 : __kmp_debug_assert ("taskdata->td_incomplete_child_tasks == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 627)); |
628 | |
629 | taskdata->td_flags.freed = 1; |
630 | ANNOTATE_HAPPENS_BEFORE(taskdata); |
631 | // deallocate the taskdata and shared variable blocks associated with this task |
632 | #if USE_FAST_MEMORY3 |
633 | __kmp_fast_free(thread, taskdata)___kmp_fast_free((thread), (taskdata), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 633); |
634 | #else /* ! USE_FAST_MEMORY */ |
635 | __kmp_thread_free(thread, taskdata)___kmp_thread_free((thread), (taskdata), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 635); |
636 | #endif |
637 | |
638 | KA_TRACE(20, ("__kmp_free_task: T#%d freed task %p\n", gtid, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task: T#%d freed task %p\n" , gtid, taskdata); }; |
639 | } |
640 | |
641 | // __kmp_free_task_and_ancestors: free the current task and ancestors without |
642 | // children |
643 | // |
644 | // gtid: Global thread ID of calling thread |
645 | // taskdata: task to free |
646 | // thread: thread data structure of caller |
647 | static void __kmp_free_task_and_ancestors(kmp_int32 gtid, |
648 | kmp_taskdata_t *taskdata, |
649 | kmp_info_t *thread) { |
650 | #if OMP_45_ENABLED(50 >= 45) |
651 | // Proxy tasks must always be allowed to free their parents |
652 | // because they can be run in background even in serial mode. |
653 | kmp_int32 team_serial = |
654 | (taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser) && |
655 | !taskdata->td_flags.proxy; |
656 | #else |
657 | kmp_int32 team_serial = |
658 | taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser; |
659 | #endif |
660 | KMP_DEBUG_ASSERT(taskdata->td_flags.tasktype == TASK_EXPLICIT)((taskdata->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 660)); |
661 | |
662 | kmp_int32 children = KMP_ATOMIC_DEC(&taskdata->td_allocated_child_tasks)(&taskdata->td_allocated_child_tasks)->fetch_sub(1, std::memory_order_acq_rel) - 1; |
663 | KMP_DEBUG_ASSERT(children >= 0)((children >= 0) ? 0 : __kmp_debug_assert("children >= 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 663)); |
664 | |
665 | // Now, go up the ancestor tree to see if any ancestors can now be freed. |
666 | while (children == 0) { |
667 | kmp_taskdata_t *parent_taskdata = taskdata->td_parent; |
668 | |
669 | KA_TRACE(20, ("__kmp_free_task_and_ancestors(enter): T#%d task %p complete "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(enter): T#%d task %p complete " "and freeing itself\n", gtid, taskdata); } |
670 | "and freeing itself\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(enter): T#%d task %p complete " "and freeing itself\n", gtid, taskdata); } |
671 | gtid, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(enter): T#%d task %p complete " "and freeing itself\n", gtid, taskdata); }; |
672 | |
673 | // --- Deallocate my ancestor task --- |
674 | __kmp_free_task(gtid, taskdata, thread); |
675 | |
676 | taskdata = parent_taskdata; |
677 | |
678 | // Stop checking ancestors at implicit task instead of walking up ancestor |
679 | // tree to avoid premature deallocation of ancestors. |
680 | if (team_serial || taskdata->td_flags.tasktype == TASK_IMPLICIT0) |
681 | return; |
682 | |
683 | // Predecrement simulated by "- 1" calculation |
684 | children = KMP_ATOMIC_DEC(&taskdata->td_allocated_child_tasks)(&taskdata->td_allocated_child_tasks)->fetch_sub(1, std::memory_order_acq_rel) - 1; |
685 | KMP_DEBUG_ASSERT(children >= 0)((children >= 0) ? 0 : __kmp_debug_assert("children >= 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 685)); |
686 | } |
687 | |
688 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(exit): T#%d task %p has %d children; " "not freeing it yet\n", gtid, taskdata, children); } |
689 | 20, ("__kmp_free_task_and_ancestors(exit): T#%d task %p has %d children; "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(exit): T#%d task %p has %d children; " "not freeing it yet\n", gtid, taskdata, children); } |
690 | "not freeing it yet\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(exit): T#%d task %p has %d children; " "not freeing it yet\n", gtid, taskdata, children); } |
691 | gtid, taskdata, children))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_and_ancestors(exit): T#%d task %p has %d children; " "not freeing it yet\n", gtid, taskdata, children); }; |
692 | } |
693 | |
694 | // __kmp_task_finish: bookkeeping to do when a task finishes execution |
695 | // |
696 | // gtid: global thread ID for calling thread |
697 | // task: task to be finished |
698 | // resumed_task: task to be resumed. (may be NULL if task is serialized) |
699 | template <bool ompt> |
700 | static void __kmp_task_finish(kmp_int32 gtid, kmp_task_t *task, |
701 | kmp_taskdata_t *resumed_task) { |
702 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
703 | kmp_info_t *thread = __kmp_threads[gtid]; |
704 | kmp_task_team_t *task_team = |
705 | thread->th.th_task_team; // might be NULL for serial teams... |
706 | kmp_int32 children = 0; |
707 | |
708 | KA_TRACE(10, ("__kmp_task_finish(enter): T#%d finishing task %p and resuming "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(enter): T#%d finishing task %p and resuming " "task %p\n", gtid, taskdata, resumed_task); } |
709 | "task %p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(enter): T#%d finishing task %p and resuming " "task %p\n", gtid, taskdata, resumed_task); } |
710 | gtid, taskdata, resumed_task))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(enter): T#%d finishing task %p and resuming " "task %p\n", gtid, taskdata, resumed_task); }; |
711 | |
712 | KMP_DEBUG_ASSERT(taskdata->td_flags.tasktype == TASK_EXPLICIT)((taskdata->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 712)); |
713 | |
714 | // Pop task from stack if tied |
715 | #ifdef BUILD_TIED_TASK_STACK |
716 | if (taskdata->td_flags.tiedness == TASK_TIED1) { |
717 | __kmp_pop_task_stack(gtid, thread, taskdata); |
718 | } |
719 | #endif /* BUILD_TIED_TASK_STACK */ |
720 | |
721 | if (taskdata->td_flags.tiedness == TASK_UNTIED0) { |
722 | // untied task needs to check the counter so that the task structure is not |
723 | // freed prematurely |
724 | kmp_int32 counter = KMP_ATOMIC_DEC(&taskdata->td_untied_count)(&taskdata->td_untied_count)->fetch_sub(1, std::memory_order_acq_rel ) - 1; |
725 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d untied_count (%d) decremented for task %p\n" , gtid, counter, taskdata); } |
726 | 20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d untied_count (%d) decremented for task %p\n" , gtid, counter, taskdata); } |
727 | ("__kmp_task_finish: T#%d untied_count (%d) decremented for task %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d untied_count (%d) decremented for task %p\n" , gtid, counter, taskdata); } |
728 | gtid, counter, taskdata))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d untied_count (%d) decremented for task %p\n" , gtid, counter, taskdata); }; |
729 | if (counter > 0) { |
730 | // untied task is not done, to be continued possibly by other thread, do |
731 | // not free it now |
732 | if (resumed_task == NULL__null) { |
733 | KMP_DEBUG_ASSERT(taskdata->td_flags.task_serial)((taskdata->td_flags.task_serial) ? 0 : __kmp_debug_assert ("taskdata->td_flags.task_serial", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 733)); |
734 | resumed_task = taskdata->td_parent; // In a serialized task, the resumed |
735 | // task is the parent |
736 | } |
737 | thread->th.th_current_task = resumed_task; // restore current_task |
738 | resumed_task->td_flags.executing = 1; // resume previous task |
739 | KA_TRACE(10, ("__kmp_task_finish(exit): T#%d partially done task %p, "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(exit): T#%d partially done task %p, " "resuming task %p\n", gtid, taskdata, resumed_task); } |
740 | "resuming task %p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(exit): T#%d partially done task %p, " "resuming task %p\n", gtid, taskdata, resumed_task); } |
741 | gtid, taskdata, resumed_task))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(exit): T#%d partially done task %p, " "resuming task %p\n", gtid, taskdata, resumed_task); }; |
742 | return; |
743 | } |
744 | } |
745 | #if OMPT_SUPPORT1 |
746 | if (ompt) |
747 | __ompt_task_finish(task, resumed_task); |
748 | #endif |
749 | |
750 | KMP_DEBUG_ASSERT(taskdata->td_flags.complete == 0)((taskdata->td_flags.complete == 0) ? 0 : __kmp_debug_assert ("taskdata->td_flags.complete == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 750)); |
751 | taskdata->td_flags.complete = 1; // mark the task as completed |
752 | KMP_DEBUG_ASSERT(taskdata->td_flags.started == 1)((taskdata->td_flags.started == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.started == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 752)); |
753 | KMP_DEBUG_ASSERT(taskdata->td_flags.freed == 0)((taskdata->td_flags.freed == 0) ? 0 : __kmp_debug_assert( "taskdata->td_flags.freed == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 753)); |
754 | |
755 | // Only need to keep track of count if team parallel and tasking not |
756 | // serialized |
757 | if (!(taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser)) { |
758 | // Predecrement simulated by "- 1" calculation |
759 | children = |
760 | KMP_ATOMIC_DEC(&taskdata->td_parent->td_incomplete_child_tasks)(&taskdata->td_parent->td_incomplete_child_tasks)-> fetch_sub(1, std::memory_order_acq_rel) - 1; |
761 | KMP_DEBUG_ASSERT(children >= 0)((children >= 0) ? 0 : __kmp_debug_assert("children >= 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 761)); |
762 | #if OMP_40_ENABLED(50 >= 40) |
763 | if (taskdata->td_taskgroup) |
764 | KMP_ATOMIC_DEC(&taskdata->td_taskgroup->count)(&taskdata->td_taskgroup->count)->fetch_sub(1, std ::memory_order_acq_rel); |
765 | #if OMP_45_ENABLED(50 >= 45) |
766 | } |
767 | // if we found proxy tasks there could exist a dependency chain |
768 | // with the proxy task as origin |
769 | if (!(taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser) || |
770 | (task_team && task_team->tt.tt_found_proxy_tasks)) { |
771 | #endif |
772 | __kmp_release_deps(gtid, taskdata); |
773 | #endif |
774 | } |
775 | |
776 | // td_flags.executing must be marked as 0 after __kmp_release_deps has been |
777 | // called. Othertwise, if a task is executed immediately from the release_deps |
778 | // code, the flag will be reset to 1 again by this same function |
779 | KMP_DEBUG_ASSERT(taskdata->td_flags.executing == 1)((taskdata->td_flags.executing == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.executing == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 779)); |
780 | taskdata->td_flags.executing = 0; // suspend the finishing task |
781 | |
782 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d finished task %p, %d incomplete children\n" , gtid, taskdata, children); } |
783 | 20, ("__kmp_task_finish: T#%d finished task %p, %d incomplete children\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d finished task %p, %d incomplete children\n" , gtid, taskdata, children); } |
784 | gtid, taskdata, children))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_finish: T#%d finished task %p, %d incomplete children\n" , gtid, taskdata, children); }; |
785 | |
786 | #if OMP_40_ENABLED(50 >= 40) |
787 | /* If the tasks' destructor thunk flag has been set, we need to invoke the |
788 | destructor thunk that has been generated by the compiler. The code is |
789 | placed here, since at this point other tasks might have been released |
790 | hence overlapping the destructor invokations with some other work in the |
791 | released tasks. The OpenMP spec is not specific on when the destructors |
792 | are invoked, so we should be free to choose. */ |
793 | if (taskdata->td_flags.destructors_thunk) { |
794 | kmp_routine_entry_t destr_thunk = task->data1.destructors; |
795 | KMP_ASSERT(destr_thunk)((destr_thunk) ? 0 : __kmp_debug_assert("destr_thunk", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 795)); |
796 | destr_thunk(gtid, task); |
797 | } |
798 | #endif // OMP_40_ENABLED |
799 | |
800 | // bookkeeping for resuming task: |
801 | // GEH - note tasking_ser => task_serial |
802 | KMP_DEBUG_ASSERT((((taskdata->td_flags.tasking_ser || taskdata->td_flags .task_serial) == taskdata->td_flags.task_serial) ? 0 : __kmp_debug_assert ("(taskdata->td_flags.tasking_ser || taskdata->td_flags.task_serial) == taskdata->td_flags.task_serial" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 804)) |
803 | (taskdata->td_flags.tasking_ser || taskdata->td_flags.task_serial) ==(((taskdata->td_flags.tasking_ser || taskdata->td_flags .task_serial) == taskdata->td_flags.task_serial) ? 0 : __kmp_debug_assert ("(taskdata->td_flags.tasking_ser || taskdata->td_flags.task_serial) == taskdata->td_flags.task_serial" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 804)) |
804 | taskdata->td_flags.task_serial)(((taskdata->td_flags.tasking_ser || taskdata->td_flags .task_serial) == taskdata->td_flags.task_serial) ? 0 : __kmp_debug_assert ("(taskdata->td_flags.tasking_ser || taskdata->td_flags.task_serial) == taskdata->td_flags.task_serial" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 804)); |
805 | if (taskdata->td_flags.task_serial) { |
806 | if (resumed_task == NULL__null) { |
807 | resumed_task = taskdata->td_parent; // In a serialized task, the resumed |
808 | // task is the parent |
809 | } |
810 | } else { |
811 | KMP_DEBUG_ASSERT(resumed_task !=((resumed_task != __null) ? 0 : __kmp_debug_assert("resumed_task != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 812)) |
812 | NULL)((resumed_task != __null) ? 0 : __kmp_debug_assert("resumed_task != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 812)); // verify that resumed task is passed as arguemnt |
813 | } |
814 | |
815 | // Free this task and then ancestor tasks if they have no children. |
816 | // Restore th_current_task first as suggested by John: |
817 | // johnmc: if an asynchronous inquiry peers into the runtime system |
818 | // it doesn't see the freed task as the current task. |
819 | thread->th.th_current_task = resumed_task; |
820 | __kmp_free_task_and_ancestors(gtid, taskdata, thread); |
821 | |
822 | // TODO: GEH - make sure root team implicit task is initialized properly. |
823 | // KMP_DEBUG_ASSERT( resumed_task->td_flags.executing == 0 ); |
824 | resumed_task->td_flags.executing = 1; // resume previous task |
825 | |
826 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(exit): T#%d finished task %p, resuming task %p\n" , gtid, taskdata, resumed_task); } |
827 | 10, ("__kmp_task_finish(exit): T#%d finished task %p, resuming task %p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(exit): T#%d finished task %p, resuming task %p\n" , gtid, taskdata, resumed_task); } |
828 | gtid, taskdata, resumed_task))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_finish(exit): T#%d finished task %p, resuming task %p\n" , gtid, taskdata, resumed_task); }; |
829 | |
830 | return; |
831 | } |
832 | |
833 | template <bool ompt> |
834 | static void __kmpc_omp_task_complete_if0_template(ident_t *loc_ref, |
835 | kmp_int32 gtid, |
836 | kmp_task_t *task) { |
837 | KA_TRACE(10, ("__kmpc_omp_task_complete_if0(enter): T#%d loc=%p task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete_if0(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); } |
838 | gtid, loc_ref, KMP_TASK_TO_TASKDATA(task)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete_if0(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); }; |
839 | // this routine will provide task to resume |
840 | __kmp_task_finish<ompt>(gtid, task, NULL__null); |
841 | |
842 | KA_TRACE(10, ("__kmpc_omp_task_complete_if0(exit): T#%d loc=%p task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete_if0(exit): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); } |
843 | gtid, loc_ref, KMP_TASK_TO_TASKDATA(task)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete_if0(exit): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); }; |
844 | |
845 | #if OMPT_SUPPORT1 |
846 | if (ompt) { |
847 | omp_frame_t *ompt_frame; |
848 | __ompt_get_task_info_internal(0, NULL__null, NULL__null, &ompt_frame, NULL__null, NULL__null); |
849 | ompt_frame->enter_frame = NULL__null; |
850 | } |
851 | #endif |
852 | |
853 | return; |
854 | } |
855 | |
856 | #if OMPT_SUPPORT1 |
857 | OMPT_NOINLINE__attribute__((noinline)) |
858 | void __kmpc_omp_task_complete_if0_ompt(ident_t *loc_ref, kmp_int32 gtid, |
859 | kmp_task_t *task) { |
860 | __kmpc_omp_task_complete_if0_template<true>(loc_ref, gtid, task); |
861 | } |
862 | #endif // OMPT_SUPPORT |
863 | |
864 | // __kmpc_omp_task_complete_if0: report that a task has completed execution |
865 | // |
866 | // loc_ref: source location information; points to end of task block. |
867 | // gtid: global thread number. |
868 | // task: task thunk for the completed task. |
869 | void __kmpc_omp_task_complete_if0(ident_t *loc_ref, kmp_int32 gtid, |
870 | kmp_task_t *task) { |
871 | #if OMPT_SUPPORT1 |
872 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
873 | __kmpc_omp_task_complete_if0_ompt(loc_ref, gtid, task); |
874 | return; |
875 | } |
876 | #endif |
877 | __kmpc_omp_task_complete_if0_template<false>(loc_ref, gtid, task); |
878 | } |
879 | |
880 | #ifdef TASK_UNUSED |
881 | // __kmpc_omp_task_complete: report that a task has completed execution |
882 | // NEVER GENERATED BY COMPILER, DEPRECATED!!! |
883 | void __kmpc_omp_task_complete(ident_t *loc_ref, kmp_int32 gtid, |
884 | kmp_task_t *task) { |
885 | KA_TRACE(10, ("__kmpc_omp_task_complete(enter): T#%d loc=%p task=%p\n", gtid,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); } |
886 | loc_ref, KMP_TASK_TO_TASKDATA(task)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); }; |
887 | |
888 | __kmp_task_finish<false>(gtid, task, |
889 | NULL__null); // Not sure how to find task to resume |
890 | |
891 | KA_TRACE(10, ("__kmpc_omp_task_complete(exit): T#%d loc=%p task=%p\n", gtid,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete(exit): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); } |
892 | loc_ref, KMP_TASK_TO_TASKDATA(task)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_complete(exit): T#%d loc=%p task=%p\n" , gtid, loc_ref, (((kmp_taskdata_t *)task) - 1)); }; |
893 | return; |
894 | } |
895 | #endif // TASK_UNUSED |
896 | |
897 | // __kmp_init_implicit_task: Initialize the appropriate fields in the implicit |
898 | // task for a given thread |
899 | // |
900 | // loc_ref: reference to source location of parallel region |
901 | // this_thr: thread data structure corresponding to implicit task |
902 | // team: team for this_thr |
903 | // tid: thread id of given thread within team |
904 | // set_curr_task: TRUE if need to push current task to thread |
905 | // NOTE: Routine does not set up the implicit task ICVS. This is assumed to |
906 | // have already been done elsewhere. |
907 | // TODO: Get better loc_ref. Value passed in may be NULL |
908 | void __kmp_init_implicit_task(ident_t *loc_ref, kmp_info_t *this_thr, |
909 | kmp_team_t *team, int tid, int set_curr_task) { |
910 | kmp_taskdata_t *task = &team->t.t_implicit_task_taskdata[tid]; |
911 | |
912 | KF_TRACE(if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_init_implicit_task(enter): T#:%d team=%p task=%p, reinit=%s\n" , tid, team, task, set_curr_task ? "TRUE" : "FALSE"); } |
913 | 10,if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_init_implicit_task(enter): T#:%d team=%p task=%p, reinit=%s\n" , tid, team, task, set_curr_task ? "TRUE" : "FALSE"); } |
914 | ("__kmp_init_implicit_task(enter): T#:%d team=%p task=%p, reinit=%s\n",if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_init_implicit_task(enter): T#:%d team=%p task=%p, reinit=%s\n" , tid, team, task, set_curr_task ? "TRUE" : "FALSE"); } |
915 | tid, team, task, set_curr_task ? "TRUE" : "FALSE"))if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_init_implicit_task(enter): T#:%d team=%p task=%p, reinit=%s\n" , tid, team, task, set_curr_task ? "TRUE" : "FALSE"); }; |
916 | |
917 | task->td_task_id = KMP_GEN_TASK_ID()(~0); |
918 | task->td_team = team; |
919 | // task->td_parent = NULL; // fix for CQ230101 (broken parent task info |
920 | // in debugger) |
921 | task->td_ident = loc_ref; |
922 | task->td_taskwait_ident = NULL__null; |
923 | task->td_taskwait_counter = 0; |
924 | task->td_taskwait_thread = 0; |
925 | |
926 | task->td_flags.tiedness = TASK_TIED1; |
927 | task->td_flags.tasktype = TASK_IMPLICIT0; |
928 | #if OMP_45_ENABLED(50 >= 45) |
929 | task->td_flags.proxy = TASK_FULL0; |
930 | #endif |
931 | |
932 | // All implicit tasks are executed immediately, not deferred |
933 | task->td_flags.task_serial = 1; |
934 | task->td_flags.tasking_ser = (__kmp_tasking_mode == tskm_immediate_exec); |
935 | task->td_flags.team_serial = (team->t.t_serialized) ? 1 : 0; |
936 | |
937 | task->td_flags.started = 1; |
938 | task->td_flags.executing = 1; |
939 | task->td_flags.complete = 0; |
940 | task->td_flags.freed = 0; |
941 | |
942 | #if OMP_40_ENABLED(50 >= 40) |
943 | task->td_depnode = NULL__null; |
944 | #endif |
945 | task->td_last_tied = task; |
946 | |
947 | if (set_curr_task) { // only do this init first time thread is created |
948 | KMP_ATOMIC_ST_REL(&task->td_incomplete_child_tasks, 0)(&task->td_incomplete_child_tasks)->store(0, std::memory_order_release ); |
949 | // Not used: don't need to deallocate implicit task |
950 | KMP_ATOMIC_ST_REL(&task->td_allocated_child_tasks, 0)(&task->td_allocated_child_tasks)->store(0, std::memory_order_release ); |
951 | #if OMP_40_ENABLED(50 >= 40) |
952 | task->td_taskgroup = NULL__null; // An implicit task does not have taskgroup |
953 | task->td_dephash = NULL__null; |
954 | #endif |
955 | __kmp_push_current_task_to_thread(this_thr, team, tid); |
956 | } else { |
957 | KMP_DEBUG_ASSERT(task->td_incomplete_child_tasks == 0)((task->td_incomplete_child_tasks == 0) ? 0 : __kmp_debug_assert ("task->td_incomplete_child_tasks == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 957)); |
958 | KMP_DEBUG_ASSERT(task->td_allocated_child_tasks == 0)((task->td_allocated_child_tasks == 0) ? 0 : __kmp_debug_assert ("task->td_allocated_child_tasks == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 958)); |
959 | } |
960 | |
961 | #if OMPT_SUPPORT1 |
962 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) |
963 | __ompt_task_init(task, tid); |
964 | #endif |
965 | |
966 | KF_TRACE(10, ("__kmp_init_implicit_task(exit): T#:%d team=%p task=%p\n", tid,if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_init_implicit_task(exit): T#:%d team=%p task=%p\n" , tid, team, task); } |
967 | team, task))if (kmp_f_debug >= 10) { __kmp_debug_printf ("__kmp_init_implicit_task(exit): T#:%d team=%p task=%p\n" , tid, team, task); }; |
968 | } |
969 | |
970 | // __kmp_finish_implicit_task: Release resources associated to implicit tasks |
971 | // at the end of parallel regions. Some resources are kept for reuse in the next |
972 | // parallel region. |
973 | // |
974 | // thread: thread data structure corresponding to implicit task |
975 | void __kmp_finish_implicit_task(kmp_info_t *thread) { |
976 | kmp_taskdata_t *task = thread->th.th_current_task; |
977 | if (task->td_dephash) |
978 | __kmp_dephash_free_entries(thread, task->td_dephash); |
979 | } |
980 | |
981 | // __kmp_free_implicit_task: Release resources associated to implicit tasks |
982 | // when these are destroyed regions |
983 | // |
984 | // thread: thread data structure corresponding to implicit task |
985 | void __kmp_free_implicit_task(kmp_info_t *thread) { |
986 | kmp_taskdata_t *task = thread->th.th_current_task; |
987 | if (task && task->td_dephash) { |
988 | __kmp_dephash_free(thread, task->td_dephash); |
989 | task->td_dephash = NULL__null; |
990 | } |
991 | } |
992 | |
993 | // Round up a size to a power of two specified by val: Used to insert padding |
994 | // between structures co-allocated using a single malloc() call |
995 | static size_t __kmp_round_up_to_val(size_t size, size_t val) { |
996 | if (size & (val - 1)) { |
997 | size &= ~(val - 1); |
998 | if (size <= KMP_SIZE_T_MAX(0xFFFFFFFFFFFFFFFF) - val) { |
999 | size += val; // Round up if there is no overflow. |
1000 | } |
1001 | } |
1002 | return size; |
1003 | } // __kmp_round_up_to_va |
1004 | |
1005 | // __kmp_task_alloc: Allocate the taskdata and task data structures for a task |
1006 | // |
1007 | // loc_ref: source location information |
1008 | // gtid: global thread number. |
1009 | // flags: include tiedness & task type (explicit vs. implicit) of the ''new'' |
1010 | // task encountered. Converted from kmp_int32 to kmp_tasking_flags_t in routine. |
1011 | // sizeof_kmp_task_t: Size in bytes of kmp_task_t data structure including |
1012 | // private vars accessed in task. |
1013 | // sizeof_shareds: Size in bytes of array of pointers to shared vars accessed |
1014 | // in task. |
1015 | // task_entry: Pointer to task code entry point generated by compiler. |
1016 | // returns: a pointer to the allocated kmp_task_t structure (task). |
1017 | kmp_task_t *__kmp_task_alloc(ident_t *loc_ref, kmp_int32 gtid, |
1018 | kmp_tasking_flags_t *flags, |
1019 | size_t sizeof_kmp_task_t, size_t sizeof_shareds, |
1020 | kmp_routine_entry_t task_entry) { |
1021 | kmp_task_t *task; |
1022 | kmp_taskdata_t *taskdata; |
1023 | kmp_info_t *thread = __kmp_threads[gtid]; |
1024 | kmp_team_t *team = thread->th.th_team; |
1025 | kmp_taskdata_t *parent_task = thread->th.th_current_task; |
1026 | size_t shareds_offset; |
1027 | |
1028 | KA_TRACE(10, ("__kmp_task_alloc(enter): T#%d loc=%p, flags=(0x%x) "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_alloc(enter): T#%d loc=%p, flags=(0x%x) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , *((kmp_int32 *)flags), sizeof_kmp_task_t, sizeof_shareds, task_entry ); } |
1029 | "sizeof_task=%ld sizeof_shared=%ld entry=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_alloc(enter): T#%d loc=%p, flags=(0x%x) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , *((kmp_int32 *)flags), sizeof_kmp_task_t, sizeof_shareds, task_entry ); } |
1030 | gtid, loc_ref, *((kmp_int32 *)flags), sizeof_kmp_task_t,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_alloc(enter): T#%d loc=%p, flags=(0x%x) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , *((kmp_int32 *)flags), sizeof_kmp_task_t, sizeof_shareds, task_entry ); } |
1031 | sizeof_shareds, task_entry))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_alloc(enter): T#%d loc=%p, flags=(0x%x) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , *((kmp_int32 *)flags), sizeof_kmp_task_t, sizeof_shareds, task_entry ); }; |
1032 | |
1033 | if (parent_task->td_flags.final) { |
1034 | if (flags->merged_if0) { |
1035 | } |
1036 | flags->final = 1; |
1037 | } |
1038 | if (flags->tiedness == TASK_UNTIED0 && !team->t.t_serialized) { |
1039 | // Untied task encountered causes the TSC algorithm to check entire deque of |
1040 | // the victim thread. If no untied task encountered, then checking the head |
1041 | // of the deque should be enough. |
1042 | KMP_CHECK_UPDATE(thread->th.th_task_team->tt.tt_untied_task_encountered, 1)if ((thread->th.th_task_team->tt.tt_untied_task_encountered ) != (1)) (thread->th.th_task_team->tt.tt_untied_task_encountered ) = (1); |
1043 | } |
1044 | |
1045 | #if OMP_45_ENABLED(50 >= 45) |
1046 | if (flags->proxy == TASK_PROXY1) { |
1047 | flags->tiedness = TASK_UNTIED0; |
1048 | flags->merged_if0 = 1; |
1049 | |
1050 | /* are we running in a sequential parallel or tskm_immediate_exec... we need |
1051 | tasking support enabled */ |
1052 | if ((thread->th.th_task_team) == NULL__null) { |
1053 | /* This should only happen if the team is serialized |
1054 | setup a task team and propagate it to the thread */ |
1055 | KMP_DEBUG_ASSERT(team->t.t_serialized)((team->t.t_serialized) ? 0 : __kmp_debug_assert("team->t.t_serialized" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1055)); |
1056 | KA_TRACE(30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("T#%d creating task team in __kmp_task_alloc for proxy task\n" , gtid); } |
1057 | ("T#%d creating task team in __kmp_task_alloc for proxy task\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("T#%d creating task team in __kmp_task_alloc for proxy task\n" , gtid); } |
1058 | gtid))if (kmp_a_debug >= 30) { __kmp_debug_printf ("T#%d creating task team in __kmp_task_alloc for proxy task\n" , gtid); }; |
1059 | __kmp_task_team_setup( |
1060 | thread, team, |
1061 | 1); // 1 indicates setup the current team regardless of nthreads |
1062 | thread->th.th_task_team = team->t.t_task_team[thread->th.th_task_state]; |
1063 | } |
1064 | kmp_task_team_t *task_team = thread->th.th_task_team; |
1065 | |
1066 | /* tasking must be enabled now as the task might not be pushed */ |
1067 | if (!KMP_TASKING_ENABLED(task_team)(((task_team)->tt.tt_found_tasks) == (!0))) { |
1068 | KA_TRACE(if (kmp_a_debug >= 30) { __kmp_debug_printf ("T#%d enabling tasking in __kmp_task_alloc for proxy task\n" , gtid); } |
1069 | 30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("T#%d enabling tasking in __kmp_task_alloc for proxy task\n" , gtid); } |
1070 | ("T#%d enabling tasking in __kmp_task_alloc for proxy task\n", gtid))if (kmp_a_debug >= 30) { __kmp_debug_printf ("T#%d enabling tasking in __kmp_task_alloc for proxy task\n" , gtid); }; |
1071 | __kmp_enable_tasking(task_team, thread); |
1072 | kmp_int32 tid = thread->th.th_info.ds.ds_tid; |
1073 | kmp_thread_data_t *thread_data = &task_team->tt.tt_threads_data[tid]; |
1074 | // No lock needed since only owner can allocate |
1075 | if (thread_data->td.td_deque == NULL__null) { |
1076 | __kmp_alloc_task_deque(thread, thread_data); |
1077 | } |
1078 | } |
1079 | |
1080 | if (task_team->tt.tt_found_proxy_tasks == FALSE0) |
1081 | TCW_4(task_team->tt.tt_found_proxy_tasks, TRUE)(task_team->tt.tt_found_proxy_tasks) = ((!0)); |
1082 | } |
1083 | #endif |
1084 | |
1085 | // Calculate shared structure offset including padding after kmp_task_t struct |
1086 | // to align pointers in shared struct |
1087 | shareds_offset = sizeof(kmp_taskdata_t) + sizeof_kmp_task_t; |
1088 | shareds_offset = __kmp_round_up_to_val(shareds_offset, sizeof(void *)); |
1089 | |
1090 | // Allocate a kmp_taskdata_t block and a kmp_task_t block. |
1091 | KA_TRACE(30, ("__kmp_task_alloc: T#%d First malloc size: %ld\n", gtid,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_task_alloc: T#%d First malloc size: %ld\n" , gtid, shareds_offset); } |
1092 | shareds_offset))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_task_alloc: T#%d First malloc size: %ld\n" , gtid, shareds_offset); }; |
1093 | KA_TRACE(30, ("__kmp_task_alloc: T#%d Second malloc size: %ld\n", gtid,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_task_alloc: T#%d Second malloc size: %ld\n" , gtid, sizeof_shareds); } |
1094 | sizeof_shareds))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_task_alloc: T#%d Second malloc size: %ld\n" , gtid, sizeof_shareds); }; |
1095 | |
1096 | // Avoid double allocation here by combining shareds with taskdata |
1097 | #if USE_FAST_MEMORY3 |
1098 | taskdata = (kmp_taskdata_t *)__kmp_fast_allocate(thread, shareds_offset +___kmp_fast_allocate((thread), (shareds_offset + sizeof_shareds ), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1099) |
1099 | sizeof_shareds)___kmp_fast_allocate((thread), (shareds_offset + sizeof_shareds ), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1099); |
1100 | #else /* ! USE_FAST_MEMORY */ |
1101 | taskdata = (kmp_taskdata_t *)__kmp_thread_malloc(thread, shareds_offset +___kmp_thread_malloc((thread), (shareds_offset + sizeof_shareds ), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1102) |
1102 | sizeof_shareds)___kmp_thread_malloc((thread), (shareds_offset + sizeof_shareds ), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1102); |
1103 | #endif /* USE_FAST_MEMORY */ |
1104 | ANNOTATE_HAPPENS_AFTER(taskdata); |
1105 | |
1106 | task = KMP_TASKDATA_TO_TASK(taskdata)(kmp_task_t *)(taskdata + 1); |
1107 | |
1108 | // Make sure task & taskdata are aligned appropriately |
1109 | #if KMP_ARCH_X860 || KMP_ARCH_PPC64(0 || 0) || !KMP_HAVE_QUAD0 |
1110 | KMP_DEBUG_ASSERT((((kmp_uintptr_t)taskdata) & (sizeof(double) - 1)) == 0)(((((kmp_uintptr_t)taskdata) & (sizeof(double) - 1)) == 0 ) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)taskdata) & (sizeof(double) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1110)); |
1111 | KMP_DEBUG_ASSERT((((kmp_uintptr_t)task) & (sizeof(double) - 1)) == 0)(((((kmp_uintptr_t)task) & (sizeof(double) - 1)) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)task) & (sizeof(double) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1111)); |
1112 | #else |
1113 | KMP_DEBUG_ASSERT((((kmp_uintptr_t)taskdata) & (sizeof(_Quad) - 1)) == 0)(((((kmp_uintptr_t)taskdata) & (sizeof(_Quad) - 1)) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)taskdata) & (sizeof(_Quad) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1113)); |
1114 | KMP_DEBUG_ASSERT((((kmp_uintptr_t)task) & (sizeof(_Quad) - 1)) == 0)(((((kmp_uintptr_t)task) & (sizeof(_Quad) - 1)) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)task) & (sizeof(_Quad) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1114)); |
1115 | #endif |
1116 | if (sizeof_shareds > 0) { |
1117 | // Avoid double allocation here by combining shareds with taskdata |
1118 | task->shareds = &((char *)taskdata)[shareds_offset]; |
1119 | // Make sure shareds struct is aligned to pointer size |
1120 | KMP_DEBUG_ASSERT((((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1)) ==(((((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1 )) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1121)) |
1121 | 0)(((((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1 )) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1121)); |
1122 | } else { |
1123 | task->shareds = NULL__null; |
1124 | } |
1125 | task->routine = task_entry; |
1126 | task->part_id = 0; // AC: Always start with 0 part id |
1127 | |
1128 | taskdata->td_task_id = KMP_GEN_TASK_ID()(~0); |
1129 | taskdata->td_team = team; |
1130 | taskdata->td_alloc_thread = thread; |
1131 | taskdata->td_parent = parent_task; |
1132 | taskdata->td_level = parent_task->td_level + 1; // increment nesting level |
1133 | KMP_ATOMIC_ST_RLX(&taskdata->td_untied_count, 0)(&taskdata->td_untied_count)->store(0, std::memory_order_relaxed ); |
1134 | taskdata->td_ident = loc_ref; |
1135 | taskdata->td_taskwait_ident = NULL__null; |
1136 | taskdata->td_taskwait_counter = 0; |
1137 | taskdata->td_taskwait_thread = 0; |
1138 | KMP_DEBUG_ASSERT(taskdata->td_parent != NULL)((taskdata->td_parent != __null) ? 0 : __kmp_debug_assert( "taskdata->td_parent != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1138)); |
1139 | #if OMP_45_ENABLED(50 >= 45) |
1140 | // avoid copying icvs for proxy tasks |
1141 | if (flags->proxy == TASK_FULL0) |
1142 | #endif |
1143 | copy_icvs(&taskdata->td_icvs, &taskdata->td_parent->td_icvs); |
1144 | |
1145 | taskdata->td_flags.tiedness = flags->tiedness; |
1146 | taskdata->td_flags.final = flags->final; |
1147 | taskdata->td_flags.merged_if0 = flags->merged_if0; |
1148 | #if OMP_40_ENABLED(50 >= 40) |
1149 | taskdata->td_flags.destructors_thunk = flags->destructors_thunk; |
1150 | #endif // OMP_40_ENABLED |
1151 | #if OMP_45_ENABLED(50 >= 45) |
1152 | taskdata->td_flags.proxy = flags->proxy; |
1153 | taskdata->td_task_team = thread->th.th_task_team; |
1154 | taskdata->td_size_alloc = shareds_offset + sizeof_shareds; |
1155 | #endif |
1156 | taskdata->td_flags.tasktype = TASK_EXPLICIT1; |
1157 | |
1158 | // GEH - TODO: fix this to copy parent task's value of tasking_ser flag |
1159 | taskdata->td_flags.tasking_ser = (__kmp_tasking_mode == tskm_immediate_exec); |
1160 | |
1161 | // GEH - TODO: fix this to copy parent task's value of team_serial flag |
1162 | taskdata->td_flags.team_serial = (team->t.t_serialized) ? 1 : 0; |
1163 | |
1164 | // GEH - Note we serialize the task if the team is serialized to make sure |
1165 | // implicit parallel region tasks are not left until program termination to |
1166 | // execute. Also, it helps locality to execute immediately. |
1167 | |
1168 | taskdata->td_flags.task_serial = |
1169 | (parent_task->td_flags.final || taskdata->td_flags.team_serial || |
1170 | taskdata->td_flags.tasking_ser); |
1171 | |
1172 | taskdata->td_flags.started = 0; |
1173 | taskdata->td_flags.executing = 0; |
1174 | taskdata->td_flags.complete = 0; |
1175 | taskdata->td_flags.freed = 0; |
1176 | |
1177 | taskdata->td_flags.native = flags->native; |
1178 | |
1179 | KMP_ATOMIC_ST_RLX(&taskdata->td_incomplete_child_tasks, 0)(&taskdata->td_incomplete_child_tasks)->store(0, std ::memory_order_relaxed); |
1180 | // start at one because counts current task and children |
1181 | KMP_ATOMIC_ST_RLX(&taskdata->td_allocated_child_tasks, 1)(&taskdata->td_allocated_child_tasks)->store(1, std ::memory_order_relaxed); |
1182 | #if OMP_40_ENABLED(50 >= 40) |
1183 | taskdata->td_taskgroup = |
1184 | parent_task->td_taskgroup; // task inherits taskgroup from the parent task |
1185 | taskdata->td_dephash = NULL__null; |
1186 | taskdata->td_depnode = NULL__null; |
1187 | #endif |
1188 | if (flags->tiedness == TASK_UNTIED0) |
1189 | taskdata->td_last_tied = NULL__null; // will be set when the task is scheduled |
1190 | else |
1191 | taskdata->td_last_tied = taskdata; |
1192 | |
1193 | #if OMPT_SUPPORT1 |
1194 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) |
1195 | __ompt_task_init(taskdata, gtid); |
1196 | #endif |
1197 | // Only need to keep track of child task counts if team parallel and tasking not |
1198 | // serialized or if it is a proxy task |
1199 | #if OMP_45_ENABLED(50 >= 45) |
1200 | if (flags->proxy == TASK_PROXY1 || |
1201 | !(taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser)) |
1202 | #else |
1203 | if (!(taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser)) |
1204 | #endif |
1205 | { |
1206 | KMP_ATOMIC_INC(&parent_task->td_incomplete_child_tasks)(&parent_task->td_incomplete_child_tasks)->fetch_add (1, std::memory_order_acq_rel); |
1207 | #if OMP_40_ENABLED(50 >= 40) |
1208 | if (parent_task->td_taskgroup) |
1209 | KMP_ATOMIC_INC(&parent_task->td_taskgroup->count)(&parent_task->td_taskgroup->count)->fetch_add(1 , std::memory_order_acq_rel); |
1210 | #endif |
1211 | // Only need to keep track of allocated child tasks for explicit tasks since |
1212 | // implicit not deallocated |
1213 | if (taskdata->td_parent->td_flags.tasktype == TASK_EXPLICIT1) { |
1214 | KMP_ATOMIC_INC(&taskdata->td_parent->td_allocated_child_tasks)(&taskdata->td_parent->td_allocated_child_tasks)-> fetch_add(1, std::memory_order_acq_rel); |
1215 | } |
1216 | } |
1217 | |
1218 | KA_TRACE(20, ("__kmp_task_alloc(exit): T#%d created task %p parent=%p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_alloc(exit): T#%d created task %p parent=%p\n" , gtid, taskdata, taskdata->td_parent); } |
1219 | gtid, taskdata, taskdata->td_parent))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_alloc(exit): T#%d created task %p parent=%p\n" , gtid, taskdata, taskdata->td_parent); }; |
1220 | ANNOTATE_HAPPENS_BEFORE(task); |
1221 | |
1222 | return task; |
1223 | } |
1224 | |
1225 | kmp_task_t *__kmpc_omp_task_alloc(ident_t *loc_ref, kmp_int32 gtid, |
1226 | kmp_int32 flags, size_t sizeof_kmp_task_t, |
1227 | size_t sizeof_shareds, |
1228 | kmp_routine_entry_t task_entry) { |
1229 | kmp_task_t *retval; |
1230 | kmp_tasking_flags_t *input_flags = (kmp_tasking_flags_t *)&flags; |
1231 | |
1232 | input_flags->native = FALSE0; |
1233 | // __kmp_task_alloc() sets up all other runtime flags |
1234 | |
1235 | #if OMP_45_ENABLED(50 >= 45) |
1236 | KA_TRACE(10, ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s %s) "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s %s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", input_flags ->proxy ? "proxy" : "", sizeof_kmp_task_t, sizeof_shareds, task_entry); } |
1237 | "sizeof_task=%ld sizeof_shared=%ld entry=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s %s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", input_flags ->proxy ? "proxy" : "", sizeof_kmp_task_t, sizeof_shareds, task_entry); } |
1238 | gtid, loc_ref, input_flags->tiedness ? "tied " : "untied",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s %s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", input_flags ->proxy ? "proxy" : "", sizeof_kmp_task_t, sizeof_shareds, task_entry); } |
1239 | input_flags->proxy ? "proxy" : "", sizeof_kmp_task_t,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s %s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", input_flags ->proxy ? "proxy" : "", sizeof_kmp_task_t, sizeof_shareds, task_entry); } |
1240 | sizeof_shareds, task_entry))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s %s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", input_flags ->proxy ? "proxy" : "", sizeof_kmp_task_t, sizeof_shareds, task_entry); }; |
1241 | #else |
1242 | KA_TRACE(10, ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s) "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", sizeof_kmp_task_t , sizeof_shareds, task_entry); } |
1243 | "sizeof_task=%ld sizeof_shared=%ld entry=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", sizeof_kmp_task_t , sizeof_shareds, task_entry); } |
1244 | gtid, loc_ref, input_flags->tiedness ? "tied " : "untied",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", sizeof_kmp_task_t , sizeof_shareds, task_entry); } |
1245 | sizeof_kmp_task_t, sizeof_shareds, task_entry))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_alloc(enter): T#%d loc=%p, flags=(%s) " "sizeof_task=%ld sizeof_shared=%ld entry=%p\n", gtid, loc_ref , input_flags->tiedness ? "tied " : "untied", sizeof_kmp_task_t , sizeof_shareds, task_entry); }; |
1246 | #endif |
1247 | |
1248 | retval = __kmp_task_alloc(loc_ref, gtid, input_flags, sizeof_kmp_task_t, |
1249 | sizeof_shareds, task_entry); |
1250 | |
1251 | KA_TRACE(20, ("__kmpc_omp_task_alloc(exit): T#%d retval %p\n", gtid, retval))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_omp_task_alloc(exit): T#%d retval %p\n" , gtid, retval); }; |
1252 | |
1253 | return retval; |
1254 | } |
1255 | |
1256 | // __kmp_invoke_task: invoke the specified task |
1257 | // |
1258 | // gtid: global thread ID of caller |
1259 | // task: the task to invoke |
1260 | // current_task: the task to resume after task invokation |
1261 | static void __kmp_invoke_task(kmp_int32 gtid, kmp_task_t *task, |
1262 | kmp_taskdata_t *current_task) { |
1263 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
1264 | kmp_uint64 cur_time; |
1265 | #if OMP_40_ENABLED(50 >= 40) |
1266 | int discard = 0 /* false */; |
1267 | #endif |
1268 | KA_TRACE(if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(enter): T#%d invoking task %p, current_task=%p\n" , gtid, taskdata, current_task); } |
1269 | 30, ("__kmp_invoke_task(enter): T#%d invoking task %p, current_task=%p\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(enter): T#%d invoking task %p, current_task=%p\n" , gtid, taskdata, current_task); } |
1270 | gtid, taskdata, current_task))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(enter): T#%d invoking task %p, current_task=%p\n" , gtid, taskdata, current_task); }; |
1271 | KMP_DEBUG_ASSERT(task)((task) ? 0 : __kmp_debug_assert("task", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1271)); |
1272 | #if OMP_45_ENABLED(50 >= 45) |
1273 | if (taskdata->td_flags.proxy == TASK_PROXY1 && |
1274 | taskdata->td_flags.complete == 1) { |
1275 | // This is a proxy task that was already completed but it needs to run |
1276 | // its bottom-half finish |
1277 | KA_TRACE(if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task: T#%d running bottom finish for proxy task %p\n" , gtid, taskdata); } |
1278 | 30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task: T#%d running bottom finish for proxy task %p\n" , gtid, taskdata); } |
1279 | ("__kmp_invoke_task: T#%d running bottom finish for proxy task %p\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task: T#%d running bottom finish for proxy task %p\n" , gtid, taskdata); } |
1280 | gtid, taskdata))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task: T#%d running bottom finish for proxy task %p\n" , gtid, taskdata); }; |
1281 | |
1282 | __kmp_bottom_half_finish_proxy(gtid, task); |
1283 | |
1284 | KA_TRACE(30, ("__kmp_invoke_task(exit): T#%d completed bottom finish for "if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed bottom finish for " "proxy task %p, resuming task %p\n", gtid, taskdata, current_task ); } |
1285 | "proxy task %p, resuming task %p\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed bottom finish for " "proxy task %p, resuming task %p\n", gtid, taskdata, current_task ); } |
1286 | gtid, taskdata, current_task))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed bottom finish for " "proxy task %p, resuming task %p\n", gtid, taskdata, current_task ); }; |
1287 | |
1288 | return; |
1289 | } |
1290 | #endif |
1291 | |
1292 | #if USE_ITT_BUILD1 && USE_ITT_NOTIFY1 |
1293 | if (__kmp_forkjoin_frames_mode == 3) { |
1294 | // Get the current time stamp to measure task execution time to correct |
1295 | // barrier imbalance time |
1296 | cur_time = __itt_get_timestamp(!__kmp_itt_get_timestamp_ptr__3_0) ? 0 : __kmp_itt_get_timestamp_ptr__3_0(); |
1297 | } |
1298 | #endif |
1299 | |
1300 | #if OMPT_SUPPORT1 |
1301 | // For untied tasks, the first task executed only calls __kmpc_omp_task and |
1302 | // does not execute code. |
1303 | ompt_thread_info_t oldInfo; |
1304 | kmp_info_t *thread; |
1305 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
1306 | // Store the threads states and restore them after the task |
1307 | thread = __kmp_threads[gtid]; |
1308 | oldInfo = thread->th.ompt_thread_info; |
1309 | thread->th.ompt_thread_info.wait_id = 0; |
1310 | thread->th.ompt_thread_info.state = (thread->th.th_team_serialized) |
1311 | ? omp_state_work_serial |
1312 | : omp_state_work_parallel; |
1313 | taskdata->ompt_task_info.frame.exit_frame = OMPT_GET_FRAME_ADDRESS(0)__builtin_frame_address(0); |
1314 | } |
1315 | #endif |
1316 | |
1317 | #if OMP_45_ENABLED(50 >= 45) |
1318 | // Proxy tasks are not handled by the runtime |
1319 | if (taskdata->td_flags.proxy != TASK_PROXY1) { |
1320 | #endif |
1321 | ANNOTATE_HAPPENS_AFTER(task); |
1322 | __kmp_task_start(gtid, task, current_task); // OMPT only if not discarded |
1323 | #if OMP_45_ENABLED(50 >= 45) |
1324 | } |
1325 | #endif |
1326 | |
1327 | #if OMP_40_ENABLED(50 >= 40) |
1328 | // TODO: cancel tasks if the parallel region has also been cancelled |
1329 | // TODO: check if this sequence can be hoisted above __kmp_task_start |
1330 | // if cancellation has been enabled for this run ... |
1331 | if (__kmp_omp_cancellation) { |
1332 | kmp_info_t *this_thr = __kmp_threads[gtid]; |
1333 | kmp_team_t *this_team = this_thr->th.th_team; |
1334 | kmp_taskgroup_t *taskgroup = taskdata->td_taskgroup; |
1335 | if ((taskgroup && taskgroup->cancel_request) || |
1336 | (this_team->t.t_cancel_request == cancel_parallel)) { |
1337 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
1338 | ompt_data_t *task_data; |
1339 | if (UNLIKELY(ompt_enabled.ompt_callback_cancel)__builtin_expect(!!(ompt_enabled.ompt_callback_cancel), 0)) { |
1340 | __ompt_get_task_info_internal(0, NULL__null, &task_data, NULL__null, NULL__null, NULL__null); |
1341 | ompt_callbacks.ompt_callback(ompt_callback_cancel)ompt_callback_cancel_callback( |
1342 | task_data, |
1343 | ((taskgroup && taskgroup->cancel_request) ? ompt_cancel_taskgroup |
1344 | : ompt_cancel_parallel) | |
1345 | ompt_cancel_discarded_task, |
1346 | NULL__null); |
1347 | } |
1348 | #endif |
1349 | KMP_COUNT_BLOCK(TASK_cancelled)((void)0); |
1350 | // this task belongs to a task group and we need to cancel it |
1351 | discard = 1 /* true */; |
1352 | } |
1353 | } |
1354 | |
1355 | // Invoke the task routine and pass in relevant data. |
1356 | // Thunks generated by gcc take a different argument list. |
1357 | if (!discard) { |
1358 | if (taskdata->td_flags.tiedness == TASK_UNTIED0) { |
1359 | taskdata->td_last_tied = current_task->td_last_tied; |
1360 | KMP_DEBUG_ASSERT(taskdata->td_last_tied)((taskdata->td_last_tied) ? 0 : __kmp_debug_assert("taskdata->td_last_tied" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1360)); |
1361 | } |
1362 | #if KMP_STATS_ENABLED0 |
1363 | KMP_COUNT_BLOCK(TASK_executed)((void)0); |
1364 | switch (KMP_GET_THREAD_STATE()((void)0)) { |
1365 | case FORK_JOIN_BARRIER: |
1366 | KMP_PUSH_PARTITIONED_TIMER(OMP_task_join_bar)((void)0); |
1367 | break; |
1368 | case PLAIN_BARRIER: |
1369 | KMP_PUSH_PARTITIONED_TIMER(OMP_task_plain_bar)((void)0); |
1370 | break; |
1371 | case TASKYIELD: |
1372 | KMP_PUSH_PARTITIONED_TIMER(OMP_task_taskyield)((void)0); |
1373 | break; |
1374 | case TASKWAIT: |
1375 | KMP_PUSH_PARTITIONED_TIMER(OMP_task_taskwait)((void)0); |
1376 | break; |
1377 | case TASKGROUP: |
1378 | KMP_PUSH_PARTITIONED_TIMER(OMP_task_taskgroup)((void)0); |
1379 | break; |
1380 | default: |
1381 | KMP_PUSH_PARTITIONED_TIMER(OMP_task_immediate)((void)0); |
1382 | break; |
1383 | } |
1384 | #endif // KMP_STATS_ENABLED |
1385 | #endif // OMP_40_ENABLED |
1386 | |
1387 | // OMPT task begin |
1388 | #if OMPT_SUPPORT1 |
1389 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) |
1390 | __ompt_task_start(task, current_task, gtid); |
1391 | #endif |
1392 | |
1393 | #ifdef KMP_GOMP_COMPAT |
1394 | if (taskdata->td_flags.native) { |
1395 | ((void (*)(void *))(*(task->routine)))(task->shareds); |
1396 | } else |
1397 | #endif /* KMP_GOMP_COMPAT */ |
1398 | { |
1399 | (*(task->routine))(gtid, task); |
1400 | } |
1401 | KMP_POP_PARTITIONED_TIMER()((void)0); |
1402 | |
1403 | #if OMP_40_ENABLED(50 >= 40) |
1404 | } |
1405 | #endif // OMP_40_ENABLED |
1406 | |
1407 | |
1408 | #if OMP_45_ENABLED(50 >= 45) |
1409 | // Proxy tasks are not handled by the runtime |
1410 | if (taskdata->td_flags.proxy != TASK_PROXY1) { |
1411 | #endif |
1412 | ANNOTATE_HAPPENS_BEFORE(taskdata->td_parent); |
1413 | #if OMPT_SUPPORT1 |
1414 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
1415 | thread->th.ompt_thread_info = oldInfo; |
1416 | if (taskdata->td_flags.tiedness == TASK_TIED1) { |
1417 | taskdata->ompt_task_info.frame.exit_frame = NULL__null; |
1418 | } |
1419 | __kmp_task_finish<true>(gtid, task, current_task); |
1420 | } else |
1421 | #endif |
1422 | __kmp_task_finish<false>(gtid, task, current_task); |
1423 | #if OMP_45_ENABLED(50 >= 45) |
1424 | } |
1425 | #endif |
1426 | |
1427 | #if USE_ITT_BUILD1 && USE_ITT_NOTIFY1 |
1428 | // Barrier imbalance - correct arrive time after the task finished |
1429 | if (__kmp_forkjoin_frames_mode == 3) { |
1430 | kmp_info_t *this_thr = __kmp_threads[gtid]; |
1431 | if (this_thr->th.th_bar_arrive_time) { |
1432 | this_thr->th.th_bar_arrive_time += (__itt_get_timestamp(!__kmp_itt_get_timestamp_ptr__3_0) ? 0 : __kmp_itt_get_timestamp_ptr__3_0() - cur_time); |
1433 | } |
1434 | } |
1435 | #endif |
1436 | KA_TRACE(if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed task %p, resuming task %p\n" , gtid, taskdata, current_task); } |
1437 | 30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed task %p, resuming task %p\n" , gtid, taskdata, current_task); } |
1438 | ("__kmp_invoke_task(exit): T#%d completed task %p, resuming task %p\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed task %p, resuming task %p\n" , gtid, taskdata, current_task); } |
1439 | gtid, taskdata, current_task))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_invoke_task(exit): T#%d completed task %p, resuming task %p\n" , gtid, taskdata, current_task); }; |
1440 | return; |
1441 | } |
1442 | |
1443 | // __kmpc_omp_task_parts: Schedule a thread-switchable task for execution |
1444 | // |
1445 | // loc_ref: location of original task pragma (ignored) |
1446 | // gtid: Global Thread ID of encountering thread |
1447 | // new_task: task thunk allocated by __kmp_omp_task_alloc() for the ''new task'' |
1448 | // Returns: |
1449 | // TASK_CURRENT_NOT_QUEUED (0) if did not suspend and queue current task to |
1450 | // be resumed later. |
1451 | // TASK_CURRENT_QUEUED (1) if suspended and queued the current task to be |
1452 | // resumed later. |
1453 | kmp_int32 __kmpc_omp_task_parts(ident_t *loc_ref, kmp_int32 gtid, |
1454 | kmp_task_t *new_task) { |
1455 | kmp_taskdata_t *new_taskdata = KMP_TASK_TO_TASKDATA(new_task)(((kmp_taskdata_t *)new_task) - 1); |
1456 | |
1457 | KA_TRACE(10, ("__kmpc_omp_task_parts(enter): T#%d loc=%p task=%p\n", gtid,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, new_taskdata); } |
1458 | loc_ref, new_taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, new_taskdata); }; |
1459 | |
1460 | #if OMPT_SUPPORT1 |
1461 | kmp_taskdata_t *parent; |
1462 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
1463 | parent = new_taskdata->td_parent; |
1464 | if (ompt_enabled.ompt_callback_task_create) { |
1465 | ompt_data_t task_data = ompt_data_none; |
1466 | ompt_callbacks.ompt_callback(ompt_callback_task_create)ompt_callback_task_create_callback( |
1467 | parent ? &(parent->ompt_task_info.task_data) : &task_data, |
1468 | parent ? &(parent->ompt_task_info.frame) : NULL__null, |
1469 | &(new_taskdata->ompt_task_info.task_data), ompt_task_explicit, 0, |
1470 | OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0)); |
1471 | } |
1472 | } |
1473 | #endif |
1474 | |
1475 | /* Should we execute the new task or queue it? For now, let's just always try |
1476 | to queue it. If the queue fills up, then we'll execute it. */ |
1477 | |
1478 | if (__kmp_push_task(gtid, new_task) == TASK_NOT_PUSHED1) // if cannot defer |
1479 | { // Execute this task immediately |
1480 | kmp_taskdata_t *current_task = __kmp_threads[gtid]->th.th_current_task; |
1481 | new_taskdata->td_flags.task_serial = 1; |
1482 | __kmp_invoke_task(gtid, new_task, current_task); |
1483 | } |
1484 | |
1485 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(exit): T#%d returning TASK_CURRENT_NOT_QUEUED: " "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n", gtid, loc_ref , new_taskdata); } |
1486 | 10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(exit): T#%d returning TASK_CURRENT_NOT_QUEUED: " "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n", gtid, loc_ref , new_taskdata); } |
1487 | ("__kmpc_omp_task_parts(exit): T#%d returning TASK_CURRENT_NOT_QUEUED: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(exit): T#%d returning TASK_CURRENT_NOT_QUEUED: " "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n", gtid, loc_ref , new_taskdata); } |
1488 | "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(exit): T#%d returning TASK_CURRENT_NOT_QUEUED: " "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n", gtid, loc_ref , new_taskdata); } |
1489 | gtid, loc_ref, new_taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task_parts(exit): T#%d returning TASK_CURRENT_NOT_QUEUED: " "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n", gtid, loc_ref , new_taskdata); }; |
1490 | |
1491 | ANNOTATE_HAPPENS_BEFORE(new_task); |
1492 | #if OMPT_SUPPORT1 |
1493 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
1494 | parent->ompt_task_info.frame.enter_frame = NULL__null; |
1495 | } |
1496 | #endif |
1497 | return TASK_CURRENT_NOT_QUEUED0; |
1498 | } |
1499 | |
1500 | // __kmp_omp_task: Schedule a non-thread-switchable task for execution |
1501 | // |
1502 | // gtid: Global Thread ID of encountering thread |
1503 | // new_task:non-thread-switchable task thunk allocated by __kmp_omp_task_alloc() |
1504 | // serialize_immediate: if TRUE then if the task is executed immediately its |
1505 | // execution will be serialized |
1506 | // Returns: |
1507 | // TASK_CURRENT_NOT_QUEUED (0) if did not suspend and queue current task to |
1508 | // be resumed later. |
1509 | // TASK_CURRENT_QUEUED (1) if suspended and queued the current task to be |
1510 | // resumed later. |
1511 | kmp_int32 __kmp_omp_task(kmp_int32 gtid, kmp_task_t *new_task, |
1512 | bool serialize_immediate) { |
1513 | kmp_taskdata_t *new_taskdata = KMP_TASK_TO_TASKDATA(new_task)(((kmp_taskdata_t *)new_task) - 1); |
1514 | |
1515 | /* Should we execute the new task or queue it? For now, let's just always try to |
1516 | queue it. If the queue fills up, then we'll execute it. */ |
1517 | #if OMP_45_ENABLED(50 >= 45) |
1518 | if (new_taskdata->td_flags.proxy == TASK_PROXY1 || |
1519 | __kmp_push_task(gtid, new_task) == TASK_NOT_PUSHED1) // if cannot defer |
1520 | #else |
1521 | if (__kmp_push_task(gtid, new_task) == TASK_NOT_PUSHED1) // if cannot defer |
1522 | #endif |
1523 | { // Execute this task immediately |
1524 | kmp_taskdata_t *current_task = __kmp_threads[gtid]->th.th_current_task; |
1525 | if (serialize_immediate) |
1526 | new_taskdata->td_flags.task_serial = 1; |
1527 | __kmp_invoke_task(gtid, new_task, current_task); |
1528 | } |
1529 | |
1530 | ANNOTATE_HAPPENS_BEFORE(new_task); |
1531 | return TASK_CURRENT_NOT_QUEUED0; |
1532 | } |
1533 | |
1534 | // __kmpc_omp_task: Wrapper around __kmp_omp_task to schedule a |
1535 | // non-thread-switchable task from the parent thread only! |
1536 | // |
1537 | // loc_ref: location of original task pragma (ignored) |
1538 | // gtid: Global Thread ID of encountering thread |
1539 | // new_task: non-thread-switchable task thunk allocated by |
1540 | // __kmp_omp_task_alloc() |
1541 | // Returns: |
1542 | // TASK_CURRENT_NOT_QUEUED (0) if did not suspend and queue current task to |
1543 | // be resumed later. |
1544 | // TASK_CURRENT_QUEUED (1) if suspended and queued the current task to be |
1545 | // resumed later. |
1546 | kmp_int32 __kmpc_omp_task(ident_t *loc_ref, kmp_int32 gtid, |
1547 | kmp_task_t *new_task) { |
1548 | kmp_int32 res; |
1549 | KMP_SET_THREAD_STATE_BLOCK(EXPLICIT_TASK)((void)0); |
1550 | |
1551 | #if KMP_DEBUG1 || OMPT_SUPPORT1 |
1552 | kmp_taskdata_t *new_taskdata = KMP_TASK_TO_TASKDATA(new_task)(((kmp_taskdata_t *)new_task) - 1); |
1553 | #endif |
1554 | KA_TRACE(10, ("__kmpc_omp_task(enter): T#%d loc=%p task=%p\n", gtid, loc_ref,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, new_taskdata); } |
1555 | new_taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, new_taskdata); }; |
1556 | |
1557 | #if OMPT_SUPPORT1 |
1558 | kmp_taskdata_t *parent = NULL__null; |
1559 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
1560 | if (!new_taskdata->td_flags.started) { |
1561 | OMPT_STORE_RETURN_ADDRESS(gtid)if (ompt_enabled.enabled && gtid >= 0 && __kmp_threads [gtid] && !__kmp_threads[gtid]->th.ompt_thread_info .return_address) __kmp_threads[gtid]->th.ompt_thread_info. return_address = __builtin_return_address(0); |
1562 | parent = new_taskdata->td_parent; |
1563 | if (!parent->ompt_task_info.frame.enter_frame) { |
1564 | parent->ompt_task_info.frame.enter_frame = OMPT_GET_FRAME_ADDRESS(1)__builtin_frame_address(1); |
1565 | } |
1566 | if (ompt_enabled.ompt_callback_task_create) { |
1567 | ompt_data_t task_data = ompt_data_none; |
1568 | ompt_callbacks.ompt_callback(ompt_callback_task_create)ompt_callback_task_create_callback( |
1569 | parent ? &(parent->ompt_task_info.task_data) : &task_data, |
1570 | parent ? &(parent->ompt_task_info.frame) : NULL__null, |
1571 | &(new_taskdata->ompt_task_info.task_data), |
1572 | ompt_task_explicit | TASK_TYPE_DETAILS_FORMAT(new_taskdata)((new_taskdata->td_flags.task_serial || new_taskdata->td_flags .tasking_ser) ? ompt_task_undeferred : 0x0) | ((!(new_taskdata ->td_flags.tiedness)) ? ompt_task_untied : 0x0) | (new_taskdata ->td_flags.final ? ompt_task_final : 0x0) | (new_taskdata-> td_flags.merged_if0 ? ompt_task_mergeable : 0x0), 0, |
1573 | OMPT_LOAD_RETURN_ADDRESS(gtid)__ompt_load_return_address(gtid)); |
1574 | } |
1575 | } else { |
1576 | // We are scheduling the continuation of an UNTIED task. |
1577 | // Scheduling back to the parent task. |
1578 | __ompt_task_finish(new_task, |
1579 | new_taskdata->ompt_task_info.scheduling_parent, |
1580 | ompt_task_others); |
1581 | new_taskdata->ompt_task_info.frame.exit_frame = NULL__null; |
1582 | } |
1583 | } |
1584 | #endif |
1585 | |
1586 | res = __kmp_omp_task(gtid, new_task, true); |
1587 | |
1588 | KA_TRACE(10, ("__kmpc_omp_task(exit): T#%d returning "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(exit): T#%d returning " "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n", gtid, loc_ref, new_taskdata ); } |
1589 | "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(exit): T#%d returning " "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n", gtid, loc_ref, new_taskdata ); } |
1590 | gtid, loc_ref, new_taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(exit): T#%d returning " "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n", gtid, loc_ref, new_taskdata ); }; |
1591 | #if OMPT_SUPPORT1 |
1592 | if (UNLIKELY(ompt_enabled.enabled && parent != NULL)__builtin_expect(!!(ompt_enabled.enabled && parent != __null), 0)) { |
1593 | parent->ompt_task_info.frame.enter_frame = NULL__null; |
1594 | } |
1595 | #endif |
1596 | return res; |
1597 | } |
1598 | |
1599 | // __kmp_omp_taskloop_task: Wrapper around __kmp_omp_task to schedule |
1600 | // a taskloop task with the correct OMPT return address |
1601 | // |
1602 | // loc_ref: location of original task pragma (ignored) |
1603 | // gtid: Global Thread ID of encountering thread |
1604 | // new_task: non-thread-switchable task thunk allocated by |
1605 | // __kmp_omp_task_alloc() |
1606 | // codeptr_ra: return address for OMPT callback |
1607 | // Returns: |
1608 | // TASK_CURRENT_NOT_QUEUED (0) if did not suspend and queue current task to |
1609 | // be resumed later. |
1610 | // TASK_CURRENT_QUEUED (1) if suspended and queued the current task to be |
1611 | // resumed later. |
1612 | kmp_int32 __kmp_omp_taskloop_task(ident_t *loc_ref, kmp_int32 gtid, |
1613 | kmp_task_t *new_task, void *codeptr_ra) { |
1614 | kmp_int32 res; |
1615 | KMP_SET_THREAD_STATE_BLOCK(EXPLICIT_TASK)((void)0); |
1616 | |
1617 | #if KMP_DEBUG1 || OMPT_SUPPORT1 |
1618 | kmp_taskdata_t *new_taskdata = KMP_TASK_TO_TASKDATA(new_task)(((kmp_taskdata_t *)new_task) - 1); |
1619 | #endif |
1620 | KA_TRACE(10, ("__kmpc_omp_task(enter): T#%d loc=%p task=%p\n", gtid, loc_ref,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, new_taskdata); } |
1621 | new_taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(enter): T#%d loc=%p task=%p\n" , gtid, loc_ref, new_taskdata); }; |
1622 | |
1623 | #if OMPT_SUPPORT1 |
1624 | kmp_taskdata_t *parent = NULL__null; |
1625 | if (UNLIKELY(ompt_enabled.enabled && !new_taskdata->td_flags.started)__builtin_expect(!!(ompt_enabled.enabled && !new_taskdata ->td_flags.started), 0)) { |
1626 | parent = new_taskdata->td_parent; |
1627 | if (!parent->ompt_task_info.frame.enter_frame) |
1628 | parent->ompt_task_info.frame.enter_frame = OMPT_GET_FRAME_ADDRESS(1)__builtin_frame_address(1); |
1629 | if (ompt_enabled.ompt_callback_task_create) { |
1630 | ompt_data_t task_data = ompt_data_none; |
1631 | ompt_callbacks.ompt_callback(ompt_callback_task_create)ompt_callback_task_create_callback( |
1632 | parent ? &(parent->ompt_task_info.task_data) : &task_data, |
1633 | parent ? &(parent->ompt_task_info.frame) : NULL__null, |
1634 | &(new_taskdata->ompt_task_info.task_data), |
1635 | ompt_task_explicit | TASK_TYPE_DETAILS_FORMAT(new_taskdata)((new_taskdata->td_flags.task_serial || new_taskdata->td_flags .tasking_ser) ? ompt_task_undeferred : 0x0) | ((!(new_taskdata ->td_flags.tiedness)) ? ompt_task_untied : 0x0) | (new_taskdata ->td_flags.final ? ompt_task_final : 0x0) | (new_taskdata-> td_flags.merged_if0 ? ompt_task_mergeable : 0x0), 0, |
1636 | codeptr_ra); |
1637 | } |
1638 | } |
1639 | #endif |
1640 | |
1641 | res = __kmp_omp_task(gtid, new_task, true); |
1642 | |
1643 | KA_TRACE(10, ("__kmpc_omp_task(exit): T#%d returning "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(exit): T#%d returning " "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n", gtid, loc_ref, new_taskdata ); } |
1644 | "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(exit): T#%d returning " "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n", gtid, loc_ref, new_taskdata ); } |
1645 | gtid, loc_ref, new_taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_task(exit): T#%d returning " "TASK_CURRENT_NOT_QUEUED: loc=%p task=%p\n", gtid, loc_ref, new_taskdata ); }; |
1646 | #if OMPT_SUPPORT1 |
1647 | if (UNLIKELY(ompt_enabled.enabled && parent != NULL)__builtin_expect(!!(ompt_enabled.enabled && parent != __null), 0)) { |
1648 | parent->ompt_task_info.frame.enter_frame = NULL__null; |
1649 | } |
1650 | #endif |
1651 | return res; |
1652 | } |
1653 | |
1654 | template <bool ompt> |
1655 | static kmp_int32 __kmpc_omp_taskwait_template(ident_t *loc_ref, kmp_int32 gtid, |
1656 | void *frame_address, |
1657 | void *return_address) { |
1658 | kmp_taskdata_t *taskdata; |
1659 | kmp_info_t *thread; |
1660 | int thread_finished = FALSE0; |
1661 | KMP_SET_THREAD_STATE_BLOCK(TASKWAIT)((void)0); |
1662 | |
1663 | KA_TRACE(10, ("__kmpc_omp_taskwait(enter): T#%d loc=%p\n", gtid, loc_ref))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskwait(enter): T#%d loc=%p\n" , gtid, loc_ref); }; |
1664 | |
1665 | if (__kmp_tasking_mode != tskm_immediate_exec) { |
1666 | thread = __kmp_threads[gtid]; |
1667 | taskdata = thread->th.th_current_task; |
1668 | |
1669 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
1670 | ompt_data_t *my_task_data; |
1671 | ompt_data_t *my_parallel_data; |
1672 | |
1673 | if (ompt) { |
1674 | my_task_data = &(taskdata->ompt_task_info.task_data); |
1675 | my_parallel_data = OMPT_CUR_TEAM_DATA(thread)(&(thread->th.th_team->t.ompt_team_info.parallel_data )); |
1676 | |
1677 | taskdata->ompt_task_info.frame.enter_frame = frame_address; |
1678 | |
1679 | if (ompt_enabled.ompt_callback_sync_region) { |
1680 | ompt_callbacks.ompt_callback(ompt_callback_sync_region)ompt_callback_sync_region_callback( |
1681 | ompt_sync_region_taskwait, ompt_scope_begin, my_parallel_data, |
1682 | my_task_data, return_address); |
1683 | } |
1684 | |
1685 | if (ompt_enabled.ompt_callback_sync_region_wait) { |
1686 | ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)ompt_callback_sync_region_wait_callback( |
1687 | ompt_sync_region_taskwait, ompt_scope_begin, my_parallel_data, |
1688 | my_task_data, return_address); |
1689 | } |
1690 | } |
1691 | #endif // OMPT_SUPPORT && OMPT_OPTIONAL |
1692 | |
1693 | // Debugger: The taskwait is active. Store location and thread encountered the |
1694 | // taskwait. |
1695 | #if USE_ITT_BUILD1 |
1696 | // Note: These values are used by ITT events as well. |
1697 | #endif /* USE_ITT_BUILD */ |
1698 | taskdata->td_taskwait_counter += 1; |
1699 | taskdata->td_taskwait_ident = loc_ref; |
1700 | taskdata->td_taskwait_thread = gtid + 1; |
1701 | |
1702 | #if USE_ITT_BUILD1 |
1703 | void *itt_sync_obj = __kmp_itt_taskwait_object(gtid); |
1704 | if (itt_sync_obj != NULL__null) |
1705 | __kmp_itt_taskwait_starting(gtid, itt_sync_obj); |
1706 | #endif /* USE_ITT_BUILD */ |
1707 | |
1708 | bool must_wait = |
1709 | !taskdata->td_flags.team_serial && !taskdata->td_flags.final; |
1710 | |
1711 | #if OMP_45_ENABLED(50 >= 45) |
1712 | must_wait = must_wait || (thread->th.th_task_team != NULL__null && |
1713 | thread->th.th_task_team->tt.tt_found_proxy_tasks); |
1714 | #endif |
1715 | if (must_wait) { |
1716 | kmp_flag_32 flag(RCAST(std::atomic<kmp_uint32> *,reinterpret_cast<std::atomic<kmp_uint32> *>(& (taskdata->td_incomplete_child_tasks)) |
1717 | &(taskdata->td_incomplete_child_tasks))reinterpret_cast<std::atomic<kmp_uint32> *>(& (taskdata->td_incomplete_child_tasks)), |
1718 | 0U); |
1719 | while (KMP_ATOMIC_LD_ACQ(&taskdata->td_incomplete_child_tasks)(&taskdata->td_incomplete_child_tasks)->load(std::memory_order_acquire ) != 0) { |
1720 | flag.execute_tasks(thread, gtid, FALSE0, |
1721 | &thread_finished USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj, |
1722 | __kmp_task_stealing_constraint); |
1723 | } |
1724 | } |
1725 | #if USE_ITT_BUILD1 |
1726 | if (itt_sync_obj != NULL__null) |
1727 | __kmp_itt_taskwait_finished(gtid, itt_sync_obj); |
1728 | #endif /* USE_ITT_BUILD */ |
1729 | |
1730 | // Debugger: The taskwait is completed. Location remains, but thread is |
1731 | // negated. |
1732 | taskdata->td_taskwait_thread = -taskdata->td_taskwait_thread; |
1733 | |
1734 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
1735 | if (ompt) { |
1736 | if (ompt_enabled.ompt_callback_sync_region_wait) { |
1737 | ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)ompt_callback_sync_region_wait_callback( |
1738 | ompt_sync_region_taskwait, ompt_scope_end, my_parallel_data, |
1739 | my_task_data, return_address); |
1740 | } |
1741 | if (ompt_enabled.ompt_callback_sync_region) { |
1742 | ompt_callbacks.ompt_callback(ompt_callback_sync_region)ompt_callback_sync_region_callback( |
1743 | ompt_sync_region_taskwait, ompt_scope_end, my_parallel_data, |
1744 | my_task_data, return_address); |
1745 | } |
1746 | taskdata->ompt_task_info.frame.enter_frame = NULL__null; |
1747 | } |
1748 | #endif // OMPT_SUPPORT && OMPT_OPTIONAL |
1749 | |
1750 | ANNOTATE_HAPPENS_AFTER(taskdata); |
1751 | } |
1752 | |
1753 | KA_TRACE(10, ("__kmpc_omp_taskwait(exit): T#%d task %p finished waiting, "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskwait(exit): T#%d task %p finished waiting, " "returning TASK_CURRENT_NOT_QUEUED\n", gtid, taskdata); } |
1754 | "returning TASK_CURRENT_NOT_QUEUED\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskwait(exit): T#%d task %p finished waiting, " "returning TASK_CURRENT_NOT_QUEUED\n", gtid, taskdata); } |
1755 | gtid, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskwait(exit): T#%d task %p finished waiting, " "returning TASK_CURRENT_NOT_QUEUED\n", gtid, taskdata); }; |
1756 | |
1757 | return TASK_CURRENT_NOT_QUEUED0; |
1758 | } |
1759 | |
1760 | #if OMPT_SUPPORT1 |
1761 | OMPT_NOINLINE__attribute__((noinline)) |
1762 | static kmp_int32 __kmpc_omp_taskwait_ompt(ident_t *loc_ref, kmp_int32 gtid, |
1763 | void *frame_address, |
1764 | void *return_address) { |
1765 | return __kmpc_omp_taskwait_template<true>(loc_ref, gtid, frame_address, |
1766 | return_address); |
1767 | } |
1768 | #endif // OMPT_SUPPORT |
1769 | |
1770 | // __kmpc_omp_taskwait: Wait until all tasks generated by the current task are |
1771 | // complete |
1772 | kmp_int32 __kmpc_omp_taskwait(ident_t *loc_ref, kmp_int32 gtid) { |
1773 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
1774 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
1775 | OMPT_STORE_RETURN_ADDRESS(gtid)if (ompt_enabled.enabled && gtid >= 0 && __kmp_threads [gtid] && !__kmp_threads[gtid]->th.ompt_thread_info .return_address) __kmp_threads[gtid]->th.ompt_thread_info. return_address = __builtin_return_address(0); |
1776 | return __kmpc_omp_taskwait_ompt(loc_ref, gtid, OMPT_GET_FRAME_ADDRESS(1)__builtin_frame_address(1), |
1777 | OMPT_LOAD_RETURN_ADDRESS(gtid)__ompt_load_return_address(gtid)); |
1778 | } |
1779 | #endif |
1780 | return __kmpc_omp_taskwait_template<false>(loc_ref, gtid, NULL__null, NULL__null); |
1781 | } |
1782 | |
1783 | // __kmpc_omp_taskyield: switch to a different task |
1784 | kmp_int32 __kmpc_omp_taskyield(ident_t *loc_ref, kmp_int32 gtid, int end_part) { |
1785 | kmp_taskdata_t *taskdata; |
1786 | kmp_info_t *thread; |
1787 | int thread_finished = FALSE0; |
1788 | |
1789 | KMP_COUNT_BLOCK(OMP_TASKYIELD)((void)0); |
1790 | KMP_SET_THREAD_STATE_BLOCK(TASKYIELD)((void)0); |
1791 | |
1792 | KA_TRACE(10, ("__kmpc_omp_taskyield(enter): T#%d loc=%p end_part = %d\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskyield(enter): T#%d loc=%p end_part = %d\n" , gtid, loc_ref, end_part); } |
1793 | gtid, loc_ref, end_part))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskyield(enter): T#%d loc=%p end_part = %d\n" , gtid, loc_ref, end_part); }; |
1794 | |
1795 | if (__kmp_tasking_mode != tskm_immediate_exec && __kmp_init_parallel) { |
1796 | thread = __kmp_threads[gtid]; |
1797 | taskdata = thread->th.th_current_task; |
1798 | // Should we model this as a task wait or not? |
1799 | // Debugger: The taskwait is active. Store location and thread encountered the |
1800 | // taskwait. |
1801 | #if USE_ITT_BUILD1 |
1802 | // Note: These values are used by ITT events as well. |
1803 | #endif /* USE_ITT_BUILD */ |
1804 | taskdata->td_taskwait_counter += 1; |
1805 | taskdata->td_taskwait_ident = loc_ref; |
1806 | taskdata->td_taskwait_thread = gtid + 1; |
1807 | |
1808 | #if USE_ITT_BUILD1 |
1809 | void *itt_sync_obj = __kmp_itt_taskwait_object(gtid); |
1810 | if (itt_sync_obj != NULL__null) |
1811 | __kmp_itt_taskwait_starting(gtid, itt_sync_obj); |
1812 | #endif /* USE_ITT_BUILD */ |
1813 | if (!taskdata->td_flags.team_serial) { |
1814 | kmp_task_team_t *task_team = thread->th.th_task_team; |
1815 | if (task_team != NULL__null) { |
1816 | if (KMP_TASKING_ENABLED(task_team)(((task_team)->tt.tt_found_tasks) == (!0))) { |
1817 | #if OMPT_SUPPORT1 |
1818 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) |
1819 | thread->th.ompt_thread_info.ompt_task_yielded = 1; |
1820 | #endif |
1821 | __kmp_execute_tasks_32( |
1822 | thread, gtid, NULL__null, FALSE0, |
1823 | &thread_finished USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj, |
1824 | __kmp_task_stealing_constraint); |
1825 | #if OMPT_SUPPORT1 |
1826 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) |
1827 | thread->th.ompt_thread_info.ompt_task_yielded = 0; |
1828 | #endif |
1829 | } |
1830 | } |
1831 | } |
1832 | #if USE_ITT_BUILD1 |
1833 | if (itt_sync_obj != NULL__null) |
1834 | __kmp_itt_taskwait_finished(gtid, itt_sync_obj); |
1835 | #endif /* USE_ITT_BUILD */ |
1836 | |
1837 | // Debugger: The taskwait is completed. Location remains, but thread is |
1838 | // negated. |
1839 | taskdata->td_taskwait_thread = -taskdata->td_taskwait_thread; |
1840 | } |
1841 | |
1842 | KA_TRACE(10, ("__kmpc_omp_taskyield(exit): T#%d task %p resuming, "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskyield(exit): T#%d task %p resuming, " "returning TASK_CURRENT_NOT_QUEUED\n", gtid, taskdata); } |
1843 | "returning TASK_CURRENT_NOT_QUEUED\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskyield(exit): T#%d task %p resuming, " "returning TASK_CURRENT_NOT_QUEUED\n", gtid, taskdata); } |
1844 | gtid, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_omp_taskyield(exit): T#%d task %p resuming, " "returning TASK_CURRENT_NOT_QUEUED\n", gtid, taskdata); }; |
1845 | |
1846 | return TASK_CURRENT_NOT_QUEUED0; |
1847 | } |
1848 | |
1849 | // TODO: change to OMP_50_ENABLED, need to change build tools for this to work |
1850 | #if OMP_45_ENABLED(50 >= 45) |
1851 | // Task Reduction implementation |
1852 | |
1853 | typedef struct kmp_task_red_flags { |
1854 | unsigned lazy_priv : 1; // hint: (1) use lazy allocation (big objects) |
1855 | unsigned reserved31 : 31; |
1856 | } kmp_task_red_flags_t; |
1857 | |
1858 | // internal structure for reduction data item related info |
1859 | typedef struct kmp_task_red_data { |
1860 | void *reduce_shar; // shared reduction item |
1861 | size_t reduce_size; // size of data item |
1862 | void *reduce_priv; // thread specific data |
1863 | void *reduce_pend; // end of private data for comparison op |
1864 | void *reduce_init; // data initialization routine |
1865 | void *reduce_fini; // data finalization routine |
1866 | void *reduce_comb; // data combiner routine |
1867 | kmp_task_red_flags_t flags; // flags for additional info from compiler |
1868 | } kmp_task_red_data_t; |
1869 | |
1870 | // structure sent us by compiler - one per reduction item |
1871 | typedef struct kmp_task_red_input { |
1872 | void *reduce_shar; // shared reduction item |
1873 | size_t reduce_size; // size of data item |
1874 | void *reduce_init; // data initialization routine |
1875 | void *reduce_fini; // data finalization routine |
1876 | void *reduce_comb; // data combiner routine |
1877 | kmp_task_red_flags_t flags; // flags for additional info from compiler |
1878 | } kmp_task_red_input_t; |
1879 | |
1880 | /*! |
1881 | @ingroup TASKING |
1882 | @param gtid Global thread ID |
1883 | @param num Number of data items to reduce |
1884 | @param data Array of data for reduction |
1885 | @return The taskgroup identifier |
1886 | |
1887 | Initialize task reduction for the taskgroup. |
1888 | */ |
1889 | void *__kmpc_task_reduction_init(int gtid, int num, void *data) { |
1890 | kmp_info_t *thread = __kmp_threads[gtid]; |
1891 | kmp_taskgroup_t *tg = thread->th.th_current_task->td_taskgroup; |
1892 | kmp_int32 nth = thread->th.th_team_nproc; |
1893 | kmp_task_red_input_t *input = (kmp_task_red_input_t *)data; |
1894 | kmp_task_red_data_t *arr; |
1895 | |
1896 | // check input data just in case |
1897 | KMP_ASSERT(tg != NULL)((tg != __null) ? 0 : __kmp_debug_assert("tg != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1897)); |
1898 | KMP_ASSERT(data != NULL)((data != __null) ? 0 : __kmp_debug_assert("data != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1898)); |
1899 | KMP_ASSERT(num > 0)((num > 0) ? 0 : __kmp_debug_assert("num > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1899)); |
1900 | if (nth == 1) { |
1901 | KA_TRACE(10, ("__kmpc_task_reduction_init: T#%d, tg %p, exiting nth=1\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_task_reduction_init: T#%d, tg %p, exiting nth=1\n" , gtid, tg); } |
1902 | gtid, tg))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_task_reduction_init: T#%d, tg %p, exiting nth=1\n" , gtid, tg); }; |
1903 | return (void *)tg; |
1904 | } |
1905 | KA_TRACE(10, ("__kmpc_task_reduction_init: T#%d, taskgroup %p, #items %d\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_task_reduction_init: T#%d, taskgroup %p, #items %d\n" , gtid, tg, num); } |
1906 | gtid, tg, num))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_task_reduction_init: T#%d, taskgroup %p, #items %d\n" , gtid, tg, num); }; |
1907 | arr = (kmp_task_red_data_t *)__kmp_thread_malloc(___kmp_thread_malloc((thread), (num * sizeof(kmp_task_red_data_t )), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1908) |
1908 | thread, num * sizeof(kmp_task_red_data_t))___kmp_thread_malloc((thread), (num * sizeof(kmp_task_red_data_t )), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1908); |
1909 | for (int i = 0; i < num; ++i) { |
1910 | void (*f_init)(void *) = (void (*)(void *))(input[i].reduce_init); |
1911 | size_t size = input[i].reduce_size - 1; |
1912 | // round the size up to cache line per thread-specific item |
1913 | size += CACHE_LINE64 - size % CACHE_LINE64; |
1914 | KMP_ASSERT(input[i].reduce_comb != NULL)((input[i].reduce_comb != __null) ? 0 : __kmp_debug_assert("input[i].reduce_comb != NULL" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1914)); // combiner is mandatory |
1915 | arr[i].reduce_shar = input[i].reduce_shar; |
1916 | arr[i].reduce_size = size; |
1917 | arr[i].reduce_init = input[i].reduce_init; |
1918 | arr[i].reduce_fini = input[i].reduce_fini; |
1919 | arr[i].reduce_comb = input[i].reduce_comb; |
1920 | arr[i].flags = input[i].flags; |
1921 | if (!input[i].flags.lazy_priv) { |
1922 | // allocate cache-line aligned block and fill it with zeros |
1923 | arr[i].reduce_priv = __kmp_allocate(nth * size)___kmp_allocate((nth * size), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1923); |
1924 | arr[i].reduce_pend = (char *)(arr[i].reduce_priv) + nth * size; |
1925 | if (f_init != NULL__null) { |
1926 | // initialize thread-specific items |
1927 | for (int j = 0; j < nth; ++j) { |
1928 | f_init((char *)(arr[i].reduce_priv) + j * size); |
1929 | } |
1930 | } |
1931 | } else { |
1932 | // only allocate space for pointers now, |
1933 | // objects will be lazily allocated/initialized once requested |
1934 | arr[i].reduce_priv = __kmp_allocate(nth * sizeof(void *))___kmp_allocate((nth * sizeof(void *)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1934); |
1935 | } |
1936 | } |
1937 | tg->reduce_data = (void *)arr; |
1938 | tg->reduce_num_data = num; |
1939 | return (void *)tg; |
1940 | } |
1941 | |
1942 | /*! |
1943 | @ingroup TASKING |
1944 | @param gtid Global thread ID |
1945 | @param tskgrp The taskgroup ID (optional) |
1946 | @param data Shared location of the item |
1947 | @return The pointer to per-thread data |
1948 | |
1949 | Get thread-specific location of data item |
1950 | */ |
1951 | void *__kmpc_task_reduction_get_th_data(int gtid, void *tskgrp, void *data) { |
1952 | kmp_info_t *thread = __kmp_threads[gtid]; |
1953 | kmp_int32 nth = thread->th.th_team_nproc; |
1954 | if (nth == 1) |
1955 | return data; // nothing to do |
1956 | |
1957 | kmp_taskgroup_t *tg = (kmp_taskgroup_t *)tskgrp; |
1958 | if (tg == NULL__null) |
1959 | tg = thread->th.th_current_task->td_taskgroup; |
1960 | KMP_ASSERT(tg != NULL)((tg != __null) ? 0 : __kmp_debug_assert("tg != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1960)); |
1961 | kmp_task_red_data_t *arr = (kmp_task_red_data_t *)(tg->reduce_data); |
1962 | kmp_int32 num = tg->reduce_num_data; |
1963 | kmp_int32 tid = thread->th.th_info.ds.ds_tid; |
1964 | |
1965 | KMP_ASSERT(data != NULL)((data != __null) ? 0 : __kmp_debug_assert("data != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1965)); |
1966 | while (tg != NULL__null) { |
1967 | for (int i = 0; i < num; ++i) { |
1968 | if (!arr[i].flags.lazy_priv) { |
1969 | if (data == arr[i].reduce_shar || |
1970 | (data >= arr[i].reduce_priv && data < arr[i].reduce_pend)) |
1971 | return (char *)(arr[i].reduce_priv) + tid * arr[i].reduce_size; |
1972 | } else { |
1973 | // check shared location first |
1974 | void **p_priv = (void **)(arr[i].reduce_priv); |
1975 | if (data == arr[i].reduce_shar) |
1976 | goto found; |
1977 | // check if we get some thread specific location as parameter |
1978 | for (int j = 0; j < nth; ++j) |
1979 | if (data == p_priv[j]) |
1980 | goto found; |
1981 | continue; // not found, continue search |
1982 | found: |
1983 | if (p_priv[tid] == NULL__null) { |
1984 | // allocate thread specific object lazily |
1985 | void (*f_init)(void *) = (void (*)(void *))(arr[i].reduce_init); |
1986 | p_priv[tid] = __kmp_allocate(arr[i].reduce_size)___kmp_allocate((arr[i].reduce_size), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1986); |
1987 | if (f_init != NULL__null) { |
1988 | f_init(p_priv[tid]); |
1989 | } |
1990 | } |
1991 | return p_priv[tid]; |
1992 | } |
1993 | } |
1994 | tg = tg->parent; |
1995 | arr = (kmp_task_red_data_t *)(tg->reduce_data); |
1996 | num = tg->reduce_num_data; |
1997 | } |
1998 | KMP_ASSERT2(0, "Unknown task reduction item")((0) ? 0 : __kmp_debug_assert(("Unknown task reduction item") , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 1998)); |
1999 | return NULL__null; // ERROR, this line never executed |
2000 | } |
2001 | |
2002 | // Finalize task reduction. |
2003 | // Called from __kmpc_end_taskgroup() |
2004 | static void __kmp_task_reduction_fini(kmp_info_t *th, kmp_taskgroup_t *tg) { |
2005 | kmp_int32 nth = th->th.th_team_nproc; |
2006 | KMP_DEBUG_ASSERT(nth > 1)((nth > 1) ? 0 : __kmp_debug_assert("nth > 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2006)); // should not be called if nth == 1 |
2007 | kmp_task_red_data_t *arr = (kmp_task_red_data_t *)tg->reduce_data; |
2008 | kmp_int32 num = tg->reduce_num_data; |
2009 | for (int i = 0; i < num; ++i) { |
2010 | void *sh_data = arr[i].reduce_shar; |
2011 | void (*f_fini)(void *) = (void (*)(void *))(arr[i].reduce_fini); |
2012 | void (*f_comb)(void *, void *) = |
2013 | (void (*)(void *, void *))(arr[i].reduce_comb); |
2014 | if (!arr[i].flags.lazy_priv) { |
2015 | void *pr_data = arr[i].reduce_priv; |
2016 | size_t size = arr[i].reduce_size; |
2017 | for (int j = 0; j < nth; ++j) { |
2018 | void *priv_data = (char *)pr_data + j * size; |
2019 | f_comb(sh_data, priv_data); // combine results |
2020 | if (f_fini) |
2021 | f_fini(priv_data); // finalize if needed |
2022 | } |
2023 | } else { |
2024 | void **pr_data = (void **)(arr[i].reduce_priv); |
2025 | for (int j = 0; j < nth; ++j) { |
2026 | if (pr_data[j] != NULL__null) { |
2027 | f_comb(sh_data, pr_data[j]); // combine results |
2028 | if (f_fini) |
2029 | f_fini(pr_data[j]); // finalize if needed |
2030 | __kmp_free(pr_data[j])___kmp_free((pr_data[j]), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2030); |
2031 | } |
2032 | } |
2033 | } |
2034 | __kmp_free(arr[i].reduce_priv)___kmp_free((arr[i].reduce_priv), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2034); |
2035 | } |
2036 | __kmp_thread_free(th, arr)___kmp_thread_free((th), (arr), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2036); |
2037 | tg->reduce_data = NULL__null; |
2038 | tg->reduce_num_data = 0; |
2039 | } |
2040 | #endif |
2041 | |
2042 | #if OMP_40_ENABLED(50 >= 40) |
2043 | // __kmpc_taskgroup: Start a new taskgroup |
2044 | void __kmpc_taskgroup(ident_t *loc, int gtid) { |
2045 | kmp_info_t *thread = __kmp_threads[gtid]; |
2046 | kmp_taskdata_t *taskdata = thread->th.th_current_task; |
2047 | kmp_taskgroup_t *tg_new = |
2048 | (kmp_taskgroup_t *)__kmp_thread_malloc(thread, sizeof(kmp_taskgroup_t))___kmp_thread_malloc((thread), (sizeof(kmp_taskgroup_t)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2048); |
2049 | KA_TRACE(10, ("__kmpc_taskgroup: T#%d loc=%p group=%p\n", gtid, loc, tg_new))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_taskgroup: T#%d loc=%p group=%p\n" , gtid, loc, tg_new); }; |
2050 | KMP_ATOMIC_ST_RLX(&tg_new->count, 0)(&tg_new->count)->store(0, std::memory_order_relaxed ); |
2051 | KMP_ATOMIC_ST_RLX(&tg_new->cancel_request, cancel_noreq)(&tg_new->cancel_request)->store(cancel_noreq, std:: memory_order_relaxed); |
2052 | tg_new->parent = taskdata->td_taskgroup; |
2053 | // TODO: change to OMP_50_ENABLED, need to change build tools for this to work |
2054 | #if OMP_45_ENABLED(50 >= 45) |
2055 | tg_new->reduce_data = NULL__null; |
2056 | tg_new->reduce_num_data = 0; |
2057 | #endif |
2058 | taskdata->td_taskgroup = tg_new; |
2059 | |
2060 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
2061 | if (UNLIKELY(ompt_enabled.ompt_callback_sync_region)__builtin_expect(!!(ompt_enabled.ompt_callback_sync_region), 0 )) { |
2062 | void *codeptr = OMPT_LOAD_RETURN_ADDRESS(gtid)__ompt_load_return_address(gtid); |
2063 | if (!codeptr) |
2064 | codeptr = OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0); |
2065 | kmp_team_t *team = thread->th.th_team; |
2066 | ompt_data_t my_task_data = taskdata->ompt_task_info.task_data; |
2067 | // FIXME: I think this is wrong for lwt! |
2068 | ompt_data_t my_parallel_data = team->t.ompt_team_info.parallel_data; |
2069 | |
2070 | ompt_callbacks.ompt_callback(ompt_callback_sync_region)ompt_callback_sync_region_callback( |
2071 | ompt_sync_region_taskgroup, ompt_scope_begin, &(my_parallel_data), |
2072 | &(my_task_data), codeptr); |
2073 | } |
2074 | #endif |
2075 | } |
2076 | |
2077 | // __kmpc_end_taskgroup: Wait until all tasks generated by the current task |
2078 | // and its descendants are complete |
2079 | void __kmpc_end_taskgroup(ident_t *loc, int gtid) { |
2080 | kmp_info_t *thread = __kmp_threads[gtid]; |
2081 | kmp_taskdata_t *taskdata = thread->th.th_current_task; |
2082 | kmp_taskgroup_t *taskgroup = taskdata->td_taskgroup; |
2083 | int thread_finished = FALSE0; |
2084 | |
2085 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
2086 | kmp_team_t *team; |
2087 | ompt_data_t my_task_data; |
2088 | ompt_data_t my_parallel_data; |
2089 | void *codeptr; |
2090 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) { |
2091 | team = thread->th.th_team; |
2092 | my_task_data = taskdata->ompt_task_info.task_data; |
2093 | // FIXME: I think this is wrong for lwt! |
2094 | my_parallel_data = team->t.ompt_team_info.parallel_data; |
2095 | codeptr = OMPT_LOAD_RETURN_ADDRESS(gtid)__ompt_load_return_address(gtid); |
2096 | if (!codeptr) |
2097 | codeptr = OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0); |
2098 | } |
2099 | #endif |
2100 | |
2101 | KA_TRACE(10, ("__kmpc_end_taskgroup(enter): T#%d loc=%p\n", gtid, loc))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_end_taskgroup(enter): T#%d loc=%p\n" , gtid, loc); }; |
2102 | KMP_DEBUG_ASSERT(taskgroup != NULL)((taskgroup != __null) ? 0 : __kmp_debug_assert("taskgroup != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2102)); |
2103 | KMP_SET_THREAD_STATE_BLOCK(TASKGROUP)((void)0); |
2104 | |
2105 | if (__kmp_tasking_mode != tskm_immediate_exec) { |
2106 | // mark task as waiting not on a barrier |
2107 | taskdata->td_taskwait_counter += 1; |
2108 | taskdata->td_taskwait_ident = loc; |
2109 | taskdata->td_taskwait_thread = gtid + 1; |
2110 | #if USE_ITT_BUILD1 |
2111 | // For ITT the taskgroup wait is similar to taskwait until we need to |
2112 | // distinguish them |
2113 | void *itt_sync_obj = __kmp_itt_taskwait_object(gtid); |
2114 | if (itt_sync_obj != NULL__null) |
2115 | __kmp_itt_taskwait_starting(gtid, itt_sync_obj); |
2116 | #endif /* USE_ITT_BUILD */ |
2117 | |
2118 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
2119 | if (UNLIKELY(ompt_enabled.ompt_callback_sync_region_wait)__builtin_expect(!!(ompt_enabled.ompt_callback_sync_region_wait ), 0)) { |
2120 | ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)ompt_callback_sync_region_wait_callback( |
2121 | ompt_sync_region_taskgroup, ompt_scope_begin, &(my_parallel_data), |
2122 | &(my_task_data), codeptr); |
2123 | } |
2124 | #endif |
2125 | |
2126 | #if OMP_45_ENABLED(50 >= 45) |
2127 | if (!taskdata->td_flags.team_serial || |
2128 | (thread->th.th_task_team != NULL__null && |
2129 | thread->th.th_task_team->tt.tt_found_proxy_tasks)) |
2130 | #else |
2131 | if (!taskdata->td_flags.team_serial) |
2132 | #endif |
2133 | { |
2134 | kmp_flag_32 flag(RCAST(std::atomic<kmp_uint32> *, &(taskgroup->count))reinterpret_cast<std::atomic<kmp_uint32> *>(& (taskgroup->count)), |
2135 | 0U); |
2136 | while (KMP_ATOMIC_LD_ACQ(&taskgroup->count)(&taskgroup->count)->load(std::memory_order_acquire ) != 0) { |
2137 | flag.execute_tasks(thread, gtid, FALSE0, |
2138 | &thread_finished USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj, |
2139 | __kmp_task_stealing_constraint); |
2140 | } |
2141 | } |
2142 | taskdata->td_taskwait_thread = -taskdata->td_taskwait_thread; // end waiting |
2143 | |
2144 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
2145 | if (UNLIKELY(ompt_enabled.ompt_callback_sync_region_wait)__builtin_expect(!!(ompt_enabled.ompt_callback_sync_region_wait ), 0)) { |
2146 | ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)ompt_callback_sync_region_wait_callback( |
2147 | ompt_sync_region_taskgroup, ompt_scope_end, &(my_parallel_data), |
2148 | &(my_task_data), codeptr); |
2149 | } |
2150 | #endif |
2151 | |
2152 | #if USE_ITT_BUILD1 |
2153 | if (itt_sync_obj != NULL__null) |
2154 | __kmp_itt_taskwait_finished(gtid, itt_sync_obj); |
2155 | #endif /* USE_ITT_BUILD */ |
2156 | } |
2157 | KMP_DEBUG_ASSERT(taskgroup->count == 0)((taskgroup->count == 0) ? 0 : __kmp_debug_assert("taskgroup->count == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2157)); |
2158 | |
2159 | // TODO: change to OMP_50_ENABLED, need to change build tools for this to work |
2160 | #if OMP_45_ENABLED(50 >= 45) |
2161 | if (taskgroup->reduce_data != NULL__null) // need to reduce? |
2162 | __kmp_task_reduction_fini(thread, taskgroup); |
2163 | #endif |
2164 | // Restore parent taskgroup for the current task |
2165 | taskdata->td_taskgroup = taskgroup->parent; |
2166 | __kmp_thread_free(thread, taskgroup)___kmp_thread_free((thread), (taskgroup), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2166); |
2167 | |
2168 | KA_TRACE(10, ("__kmpc_end_taskgroup(exit): T#%d task %p finished waiting\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_end_taskgroup(exit): T#%d task %p finished waiting\n" , gtid, taskdata); } |
2169 | gtid, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmpc_end_taskgroup(exit): T#%d task %p finished waiting\n" , gtid, taskdata); }; |
2170 | ANNOTATE_HAPPENS_AFTER(taskdata); |
2171 | |
2172 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
2173 | if (UNLIKELY(ompt_enabled.ompt_callback_sync_region)__builtin_expect(!!(ompt_enabled.ompt_callback_sync_region), 0 )) { |
2174 | ompt_callbacks.ompt_callback(ompt_callback_sync_region)ompt_callback_sync_region_callback( |
2175 | ompt_sync_region_taskgroup, ompt_scope_end, &(my_parallel_data), |
2176 | &(my_task_data), codeptr); |
2177 | } |
2178 | #endif |
2179 | } |
2180 | #endif |
2181 | |
2182 | // __kmp_remove_my_task: remove a task from my own deque |
2183 | static kmp_task_t *__kmp_remove_my_task(kmp_info_t *thread, kmp_int32 gtid, |
2184 | kmp_task_team_t *task_team, |
2185 | kmp_int32 is_constrained) { |
2186 | kmp_task_t *task; |
2187 | kmp_taskdata_t *taskdata; |
2188 | kmp_thread_data_t *thread_data; |
2189 | kmp_uint32 tail; |
2190 | |
2191 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2191)); |
2192 | KMP_DEBUG_ASSERT(task_team->tt.tt_threads_data !=((task_team->tt.tt_threads_data != __null) ? 0 : __kmp_debug_assert ("task_team->tt.tt_threads_data != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2193)) |
2193 | NULL)((task_team->tt.tt_threads_data != __null) ? 0 : __kmp_debug_assert ("task_team->tt.tt_threads_data != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2193)); // Caller should check this condition |
2194 | |
2195 | thread_data = &task_team->tt.tt_threads_data[__kmp_tid_from_gtid(gtid)((((gtid) >= 0) ? 0 : __kmp_debug_assert("(gtid) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2195)), __kmp_threads[(gtid)]->th.th_info.ds.ds_tid)]; |
2196 | |
2197 | KA_TRACE(10, ("__kmp_remove_my_task(enter): T#%d ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(enter): T#%d ntasks=%d head=%u tail=%u\n" , gtid, thread_data->td.td_deque_ntasks, thread_data->td .td_deque_head, thread_data->td.td_deque_tail); } |
2198 | gtid, thread_data->td.td_deque_ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(enter): T#%d ntasks=%d head=%u tail=%u\n" , gtid, thread_data->td.td_deque_ntasks, thread_data->td .td_deque_head, thread_data->td.td_deque_tail); } |
2199 | thread_data->td.td_deque_head, thread_data->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(enter): T#%d ntasks=%d head=%u tail=%u\n" , gtid, thread_data->td.td_deque_ntasks, thread_data->td .td_deque_head, thread_data->td.td_deque_tail); }; |
2200 | |
2201 | if (TCR_4(thread_data->td.td_deque_ntasks)(thread_data->td.td_deque_ntasks) == 0) { |
2202 | KA_TRACE(10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #1): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2203 | ("__kmp_remove_my_task(exit #1): T#%d No tasks to remove: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #1): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2204 | "ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #1): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2205 | gtid, thread_data->td.td_deque_ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #1): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2206 | thread_data->td.td_deque_head, thread_data->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #1): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); }; |
2207 | return NULL__null; |
2208 | } |
2209 | |
2210 | __kmp_acquire_bootstrap_lock(&thread_data->td.td_deque_lock); |
2211 | |
2212 | if (TCR_4(thread_data->td.td_deque_ntasks)(thread_data->td.td_deque_ntasks) == 0) { |
2213 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
2214 | KA_TRACE(10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2215 | ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2216 | "ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2217 | gtid, thread_data->td.td_deque_ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2218 | thread_data->td.td_deque_head, thread_data->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); }; |
2219 | return NULL__null; |
2220 | } |
2221 | |
2222 | tail = (thread_data->td.td_deque_tail - 1) & |
2223 | TASK_DEQUE_MASK(thread_data->td)((thread_data->td).td_deque_size - 1); // Wrap index. |
2224 | taskdata = thread_data->td.td_deque[tail]; |
2225 | |
2226 | if (is_constrained && (taskdata->td_flags.tiedness == TASK_TIED1)) { |
2227 | // we need to check if the candidate obeys task scheduling constraint (TSC) |
2228 | // only descendant of all deferred tied tasks can be scheduled, checking |
2229 | // the last one is enough, as it in turn is the descendant of all others |
2230 | kmp_taskdata_t *current = thread->th.th_current_task->td_last_tied; |
2231 | KMP_DEBUG_ASSERT(current != NULL)((current != __null) ? 0 : __kmp_debug_assert("current != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2231)); |
2232 | // check if last tied task is not suspended on barrier |
2233 | if (current->td_flags.tasktype == TASK_EXPLICIT1 || |
2234 | current->td_taskwait_thread > 0) { // <= 0 on barrier |
2235 | kmp_int32 level = current->td_level; |
2236 | kmp_taskdata_t *parent = taskdata->td_parent; |
2237 | while (parent != current && parent->td_level > level) { |
2238 | parent = parent->td_parent; // check generation up to the level of the |
2239 | // current task |
2240 | KMP_DEBUG_ASSERT(parent != NULL)((parent != __null) ? 0 : __kmp_debug_assert("parent != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2240)); |
2241 | } |
2242 | if (parent != current) { |
2243 | // The TSC does not allow to steal victim task |
2244 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
2245 | KA_TRACE(10, ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2246 | "ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2247 | gtid, thread_data->td.td_deque_ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2248 | thread_data->td.td_deque_head,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); } |
2249 | thread_data->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d No tasks to remove: " "ntasks=%d head=%u tail=%u\n", gtid, thread_data->td.td_deque_ntasks , thread_data->td.td_deque_head, thread_data->td.td_deque_tail ); }; |
2250 | return NULL__null; |
2251 | } |
2252 | } |
2253 | } |
2254 | |
2255 | thread_data->td.td_deque_tail = tail; |
2256 | TCW_4(thread_data->td.td_deque_ntasks, thread_data->td.td_deque_ntasks - 1)(thread_data->td.td_deque_ntasks) = (thread_data->td.td_deque_ntasks - 1); |
2257 | |
2258 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
2259 | |
2260 | KA_TRACE(10, ("__kmp_remove_my_task(exit #2): T#%d task %p removed: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d task %p removed: " "ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data-> td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); } |
2261 | "ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d task %p removed: " "ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data-> td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); } |
2262 | gtid, taskdata, thread_data->td.td_deque_ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d task %p removed: " "ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data-> td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); } |
2263 | thread_data->td.td_deque_head, thread_data->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_remove_my_task(exit #2): T#%d task %p removed: " "ntasks=%d head=%u tail=%u\n", gtid, taskdata, thread_data-> td.td_deque_ntasks, thread_data->td.td_deque_head, thread_data ->td.td_deque_tail); }; |
2264 | |
2265 | task = KMP_TASKDATA_TO_TASK(taskdata)(kmp_task_t *)(taskdata + 1); |
2266 | return task; |
2267 | } |
2268 | |
2269 | // __kmp_steal_task: remove a task from another thread's deque |
2270 | // Assume that calling thread has already checked existence of |
2271 | // task_team thread_data before calling this routine. |
2272 | static kmp_task_t *__kmp_steal_task(kmp_info_t *victim_thr, kmp_int32 gtid, |
2273 | kmp_task_team_t *task_team, |
2274 | std::atomic<kmp_int32> *unfinished_threads, |
2275 | int *thread_finished, |
2276 | kmp_int32 is_constrained) { |
2277 | kmp_task_t *task; |
2278 | kmp_taskdata_t *taskdata; |
2279 | kmp_taskdata_t *current; |
2280 | kmp_thread_data_t *victim_td, *threads_data; |
2281 | kmp_int32 level, target; |
2282 | kmp_int32 victim_tid; |
2283 | |
2284 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2284)); |
2285 | |
2286 | threads_data = task_team->tt.tt_threads_data; |
2287 | KMP_DEBUG_ASSERT(threads_data != NULL)((threads_data != __null) ? 0 : __kmp_debug_assert("threads_data != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2287)); // Caller should check this condition |
2288 | |
2289 | victim_tid = victim_thr->th.th_info.ds.ds_tid; |
2290 | victim_td = &threads_data[victim_tid]; |
2291 | |
2292 | KA_TRACE(10, ("__kmp_steal_task(enter): T#%d try to steal from T#%d: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(enter): T#%d try to steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2294)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2293 | "task_team=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(enter): T#%d try to steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2294)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2294 | gtid, __kmp_gtid_from_thread(victim_thr), task_team,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(enter): T#%d try to steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2294)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2295 | victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(enter): T#%d try to steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2294)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2296 | victim_td->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(enter): T#%d try to steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2294)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); }; |
2297 | |
2298 | if (TCR_4(victim_td->td.td_deque_ntasks)(victim_td->td.td_deque_ntasks) == 0) { |
2299 | KA_TRACE(10, ("__kmp_steal_task(exit #1): T#%d could not steal from T#%d: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #1): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2301)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2300 | "task_team=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #1): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2301)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2301 | gtid, __kmp_gtid_from_thread(victim_thr), task_team,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #1): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2301)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2302 | victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #1): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2301)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); } |
2303 | victim_td->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #1): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2301)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, victim_td->td.td_deque_ntasks, victim_td->td.td_deque_head , victim_td->td.td_deque_tail); }; |
2304 | return NULL__null; |
2305 | } |
2306 | |
2307 | __kmp_acquire_bootstrap_lock(&victim_td->td.td_deque_lock); |
2308 | |
2309 | int ntasks = TCR_4(victim_td->td.td_deque_ntasks)(victim_td->td.td_deque_ntasks); |
2310 | // Check again after we acquire the lock |
2311 | if (ntasks == 0) { |
2312 | __kmp_release_bootstrap_lock(&victim_td->td.td_deque_lock); |
2313 | KA_TRACE(10, ("__kmp_steal_task(exit #2): T#%d could not steal from T#%d: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #2): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2315)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2314 | "task_team=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #2): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2315)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2315 | gtid, __kmp_gtid_from_thread(victim_thr), task_team, ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #2): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2315)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2316 | victim_td->td.td_deque_head, victim_td->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #2): T#%d could not steal from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, ((((victim_thr ) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2315)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); }; |
2317 | return NULL__null; |
2318 | } |
2319 | |
2320 | KMP_DEBUG_ASSERT(victim_td->td.td_deque != NULL)((victim_td->td.td_deque != __null) ? 0 : __kmp_debug_assert ("victim_td->td.td_deque != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2320)); |
2321 | |
2322 | taskdata = victim_td->td.td_deque[victim_td->td.td_deque_head]; |
2323 | if (is_constrained && (taskdata->td_flags.tiedness == TASK_TIED1)) { |
2324 | // we need to check if the candidate obeys task scheduling constraint (TSC) |
2325 | // only descendant of all deferred tied tasks can be scheduled, checking |
2326 | // the last one is enough, as it in turn is the descendant of all others |
2327 | current = __kmp_threads[gtid]->th.th_current_task->td_last_tied; |
2328 | KMP_DEBUG_ASSERT(current != NULL)((current != __null) ? 0 : __kmp_debug_assert("current != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2328)); |
2329 | // check if last tied task is not suspended on barrier |
2330 | if (current->td_flags.tasktype == TASK_EXPLICIT1 || |
2331 | current->td_taskwait_thread > 0) { // <= 0 on barrier |
2332 | level = current->td_level; |
2333 | kmp_taskdata_t *parent = taskdata->td_parent; |
2334 | while (parent != current && parent->td_level > level) { |
2335 | parent = parent->td_parent; // check generation up to the level of the |
2336 | // current task |
2337 | KMP_DEBUG_ASSERT(parent != NULL)((parent != __null) ? 0 : __kmp_debug_assert("parent != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2337)); |
2338 | } |
2339 | if (parent != current) { |
2340 | if (!task_team->tt.tt_untied_task_encountered) { |
2341 | // The TSC does not allow to steal victim task |
2342 | __kmp_release_bootstrap_lock(&victim_td->td.td_deque_lock); |
2343 | KA_TRACE(10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #3): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2346)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2344 | ("__kmp_steal_task(exit #3): T#%d could not steal from "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #3): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2346)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2345 | "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #3): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2346)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2346 | gtid, __kmp_gtid_from_thread(victim_thr), task_team, ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #3): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2346)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2347 | victim_td->td.td_deque_head, victim_td->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #3): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2346)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); }; |
2348 | return NULL__null; |
2349 | } |
2350 | taskdata = NULL__null; // will check other tasks in victim's deque |
2351 | } |
2352 | } |
2353 | } |
2354 | if (taskdata != NULL__null) { |
2355 | // Bump head pointer and Wrap. |
2356 | victim_td->td.td_deque_head = |
2357 | (victim_td->td.td_deque_head + 1) & TASK_DEQUE_MASK(victim_td->td)((victim_td->td).td_deque_size - 1); |
2358 | } else { |
2359 | int i; |
2360 | // walk through victim's deque trying to steal any task |
2361 | target = victim_td->td.td_deque_head; |
2362 | for (i = 1; i < ntasks; ++i) { |
2363 | target = (target + 1) & TASK_DEQUE_MASK(victim_td->td)((victim_td->td).td_deque_size - 1); |
2364 | taskdata = victim_td->td.td_deque[target]; |
2365 | if (taskdata->td_flags.tiedness == TASK_TIED1) { |
2366 | // check if the candidate obeys the TSC |
2367 | kmp_taskdata_t *parent = taskdata->td_parent; |
2368 | // check generation up to the level of the current task |
2369 | while (parent != current && parent->td_level > level) { |
2370 | parent = parent->td_parent; |
2371 | KMP_DEBUG_ASSERT(parent != NULL)((parent != __null) ? 0 : __kmp_debug_assert("parent != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2371)); |
2372 | } |
2373 | if (parent != current) { |
2374 | // The TSC does not allow to steal the candidate |
2375 | taskdata = NULL__null; |
2376 | continue; |
2377 | } else { |
2378 | // found victim tied task |
2379 | break; |
2380 | } |
2381 | } else { |
2382 | // found victim untied task |
2383 | break; |
2384 | } |
2385 | } |
2386 | if (taskdata == NULL__null) { |
2387 | // No appropriate candidate to steal found |
2388 | __kmp_release_bootstrap_lock(&victim_td->td.td_deque_lock); |
2389 | KA_TRACE(10, ("__kmp_steal_task(exit #4): T#%d could not steal from "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #4): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2391)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2390 | "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #4): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2391)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2391 | gtid, __kmp_gtid_from_thread(victim_thr), task_team, ntasks,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #4): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2391)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2392 | victim_td->td.td_deque_head, victim_td->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #4): T#%d could not steal from " "T#%d: task_team=%p ntasks=%d head=%u tail=%u\n", gtid, (((( victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2391)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); }; |
2393 | return NULL__null; |
2394 | } |
2395 | int prev = target; |
2396 | for (i = i + 1; i < ntasks; ++i) { |
2397 | // shift remaining tasks in the deque left by 1 |
2398 | target = (target + 1) & TASK_DEQUE_MASK(victim_td->td)((victim_td->td).td_deque_size - 1); |
2399 | victim_td->td.td_deque[prev] = victim_td->td.td_deque[target]; |
2400 | prev = target; |
2401 | } |
2402 | KMP_DEBUG_ASSERT(victim_td->td.td_deque_tail ==((victim_td->td.td_deque_tail == ((target + 1) & ((victim_td ->td).td_deque_size - 1))) ? 0 : __kmp_debug_assert("victim_td->td.td_deque_tail == ((target + 1) & ((victim_td->td).td_deque_size - 1))" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2403)) |
2403 | ((target + 1) & TASK_DEQUE_MASK(victim_td->td)))((victim_td->td.td_deque_tail == ((target + 1) & ((victim_td ->td).td_deque_size - 1))) ? 0 : __kmp_debug_assert("victim_td->td.td_deque_tail == ((target + 1) & ((victim_td->td).td_deque_size - 1))" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2403)); |
2404 | victim_td->td.td_deque_tail = target; // tail -= 1 (wrapped)) |
2405 | } |
2406 | if (*thread_finished) { |
2407 | // We need to un-mark this victim as a finished victim. This must be done |
2408 | // before releasing the lock, or else other threads (starting with the |
2409 | // master victim) might be prematurely released from the barrier!!! |
2410 | kmp_int32 count; |
2411 | |
2412 | count = KMP_ATOMIC_INC(unfinished_threads)(unfinished_threads)->fetch_add(1, std::memory_order_acq_rel ); |
2413 | |
2414 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_steal_task: T#%d inc unfinished_threads to %d: task_team=%p\n" , gtid, count + 1, task_team); } |
2415 | 20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_steal_task: T#%d inc unfinished_threads to %d: task_team=%p\n" , gtid, count + 1, task_team); } |
2416 | ("__kmp_steal_task: T#%d inc unfinished_threads to %d: task_team=%p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_steal_task: T#%d inc unfinished_threads to %d: task_team=%p\n" , gtid, count + 1, task_team); } |
2417 | gtid, count + 1, task_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_steal_task: T#%d inc unfinished_threads to %d: task_team=%p\n" , gtid, count + 1, task_team); }; |
2418 | |
2419 | *thread_finished = FALSE0; |
2420 | } |
2421 | TCW_4(victim_td->td.td_deque_ntasks, ntasks - 1)(victim_td->td.td_deque_ntasks) = (ntasks - 1); |
2422 | |
2423 | __kmp_release_bootstrap_lock(&victim_td->td.td_deque_lock); |
2424 | |
2425 | KMP_COUNT_BLOCK(TASK_stolen)((void)0); |
2426 | KA_TRACE(10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #5): T#%d stole task %p from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, ( (((victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2429)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2427 | ("__kmp_steal_task(exit #5): T#%d stole task %p from T#%d: "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #5): T#%d stole task %p from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, ( (((victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2429)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2428 | "task_team=%p ntasks=%d head=%u tail=%u\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #5): T#%d stole task %p from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, ( (((victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2429)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2429 | gtid, taskdata, __kmp_gtid_from_thread(victim_thr), task_team,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #5): T#%d stole task %p from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, ( (((victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2429)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); } |
2430 | ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_steal_task(exit #5): T#%d stole task %p from T#%d: " "task_team=%p ntasks=%d head=%u tail=%u\n", gtid, taskdata, ( (((victim_thr) != __null) ? 0 : __kmp_debug_assert("(victim_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2429)), (victim_thr)->th.th_info.ds.ds_gtid), task_team, ntasks, victim_td->td.td_deque_head, victim_td->td.td_deque_tail ); }; |
2431 | |
2432 | task = KMP_TASKDATA_TO_TASK(taskdata)(kmp_task_t *)(taskdata + 1); |
2433 | return task; |
2434 | } |
2435 | |
2436 | // __kmp_execute_tasks_template: Choose and execute tasks until either the |
2437 | // condition is statisfied (return true) or there are none left (return false). |
2438 | // |
2439 | // final_spin is TRUE if this is the spin at the release barrier. |
2440 | // thread_finished indicates whether the thread is finished executing all |
2441 | // the tasks it has on its deque, and is at the release barrier. |
2442 | // spinner is the location on which to spin. |
2443 | // spinner == NULL means only execute a single task and return. |
2444 | // checker is the value to check to terminate the spin. |
2445 | template <class C> |
2446 | static inline int __kmp_execute_tasks_template( |
2447 | kmp_info_t *thread, kmp_int32 gtid, C *flag, int final_spin, |
2448 | int *thread_finished USE_ITT_BUILD_ARG(void *itt_sync_obj), void *itt_sync_obj, |
2449 | kmp_int32 is_constrained) { |
2450 | kmp_task_team_t *task_team = thread->th.th_task_team; |
2451 | kmp_thread_data_t *threads_data; |
2452 | kmp_task_t *task; |
2453 | kmp_info_t *other_thread; |
2454 | kmp_taskdata_t *current_task = thread->th.th_current_task; |
2455 | std::atomic<kmp_int32> *unfinished_threads; |
2456 | kmp_int32 nthreads, victim_tid = -2, use_own_tasks = 1, new_victim = 0, |
2457 | tid = thread->th.th_info.ds.ds_tid; |
2458 | |
2459 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2459)); |
2460 | KMP_DEBUG_ASSERT(thread == __kmp_threads[gtid])((thread == __kmp_threads[gtid]) ? 0 : __kmp_debug_assert("thread == __kmp_threads[gtid]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2460)); |
2461 | |
2462 | if (task_team == NULL__null) |
2463 | return FALSE0; |
2464 | |
2465 | KA_TRACE(15, ("__kmp_execute_tasks_template(enter): T#%d final_spin=%d "if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template(enter): T#%d final_spin=%d " "*thread_finished=%d\n", gtid, final_spin, *thread_finished) ; } |
2466 | "*thread_finished=%d\n",if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template(enter): T#%d final_spin=%d " "*thread_finished=%d\n", gtid, final_spin, *thread_finished) ; } |
2467 | gtid, final_spin, *thread_finished))if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template(enter): T#%d final_spin=%d " "*thread_finished=%d\n", gtid, final_spin, *thread_finished) ; }; |
2468 | |
2469 | thread->th.th_reap_state = KMP_NOT_SAFE_TO_REAP0; |
2470 | threads_data = (kmp_thread_data_t *)TCR_PTR(task_team->tt.tt_threads_data)((void *)(task_team->tt.tt_threads_data)); |
2471 | KMP_DEBUG_ASSERT(threads_data != NULL)((threads_data != __null) ? 0 : __kmp_debug_assert("threads_data != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2471)); |
2472 | |
2473 | nthreads = task_team->tt.tt_nproc; |
2474 | unfinished_threads = &(task_team->tt.tt_unfinished_threads); |
2475 | #if OMP_45_ENABLED(50 >= 45) |
2476 | KMP_DEBUG_ASSERT(nthreads > 1 || task_team->tt.tt_found_proxy_tasks)((nthreads > 1 || task_team->tt.tt_found_proxy_tasks) ? 0 : __kmp_debug_assert("nthreads > 1 || task_team->tt.tt_found_proxy_tasks" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2476)); |
2477 | #else |
2478 | KMP_DEBUG_ASSERT(nthreads > 1)((nthreads > 1) ? 0 : __kmp_debug_assert("nthreads > 1" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2478)); |
2479 | #endif |
2480 | KMP_DEBUG_ASSERT(*unfinished_threads >= 0)((*unfinished_threads >= 0) ? 0 : __kmp_debug_assert("*unfinished_threads >= 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2480)); |
2481 | |
2482 | while (1) { // Outer loop keeps trying to find tasks in case of single thread |
2483 | // getting tasks from target constructs |
2484 | while (1) { // Inner loop to find a task and execute it |
2485 | task = NULL__null; |
2486 | if (use_own_tasks) { // check on own queue first |
2487 | task = __kmp_remove_my_task(thread, gtid, task_team, is_constrained); |
2488 | } |
2489 | if ((task == NULL__null) && (nthreads > 1)) { // Steal a task |
2490 | int asleep = 1; |
2491 | use_own_tasks = 0; |
2492 | // Try to steal from the last place I stole from successfully. |
2493 | if (victim_tid == -2) { // haven't stolen anything yet |
2494 | victim_tid = threads_data[tid].td.td_deque_last_stolen; |
2495 | if (victim_tid != |
2496 | -1) // if we have a last stolen from victim, get the thread |
2497 | other_thread = threads_data[victim_tid].td.td_thr; |
2498 | } |
2499 | if (victim_tid != -1) { // found last victim |
2500 | asleep = 0; |
2501 | } else if (!new_victim) { // no recent steals and we haven't already |
2502 | // used a new victim; select a random thread |
2503 | do { // Find a different thread to steal work from. |
2504 | // Pick a random thread. Initial plan was to cycle through all the |
2505 | // threads, and only return if we tried to steal from every thread, |
2506 | // and failed. Arch says that's not such a great idea. |
2507 | victim_tid = __kmp_get_random(thread) % (nthreads - 1); |
2508 | if (victim_tid >= tid) { |
2509 | ++victim_tid; // Adjusts random distribution to exclude self |
2510 | } |
2511 | // Found a potential victim |
2512 | other_thread = threads_data[victim_tid].td.td_thr; |
2513 | // There is a slight chance that __kmp_enable_tasking() did not wake |
2514 | // up all threads waiting at the barrier. If victim is sleeping, |
2515 | // then wake it up. Since we were going to pay the cache miss |
2516 | // penalty for referencing another thread's kmp_info_t struct |
2517 | // anyway, |
2518 | // the check shouldn't cost too much performance at this point. In |
2519 | // extra barrier mode, tasks do not sleep at the separate tasking |
2520 | // barrier, so this isn't a problem. |
2521 | asleep = 0; |
2522 | if ((__kmp_tasking_mode == tskm_task_teams) && |
2523 | (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME(2147483647)) && |
2524 | (TCR_PTR(CCAST(void *, other_thread->th.th_sleep_loc))((void *)(const_cast<void *>(other_thread->th.th_sleep_loc ))) != |
2525 | NULL__null)) { |
2526 | asleep = 1; |
2527 | __kmp_null_resume_wrapper(__kmp_gtid_from_thread(other_thread)((((other_thread) != __null) ? 0 : __kmp_debug_assert("(other_thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2527)), (other_thread)->th.th_info.ds.ds_gtid), |
2528 | other_thread->th.th_sleep_loc); |
2529 | // A sleeping thread should not have any tasks on it's queue. |
2530 | // There is a slight possibility that it resumes, steals a task |
2531 | // from another thread, which spawns more tasks, all in the time |
2532 | // that it takes this thread to check => don't write an assertion |
2533 | // that the victim's queue is empty. Try stealing from a |
2534 | // different thread. |
2535 | } |
2536 | } while (asleep); |
2537 | } |
2538 | |
2539 | if (!asleep) { |
2540 | // We have a victim to try to steal from |
2541 | task = __kmp_steal_task(other_thread, gtid, task_team, |
2542 | unfinished_threads, thread_finished, |
2543 | is_constrained); |
2544 | } |
2545 | if (task != NULL__null) { // set last stolen to victim |
2546 | if (threads_data[tid].td.td_deque_last_stolen != victim_tid) { |
2547 | threads_data[tid].td.td_deque_last_stolen = victim_tid; |
2548 | // The pre-refactored code did not try more than 1 successful new |
2549 | // vicitm, unless the last one generated more local tasks; |
2550 | // new_victim keeps track of this |
2551 | new_victim = 1; |
2552 | } |
2553 | } else { // No tasks found; unset last_stolen |
2554 | KMP_CHECK_UPDATE(threads_data[tid].td.td_deque_last_stolen, -1)if ((threads_data[tid].td.td_deque_last_stolen) != (-1)) (threads_data [tid].td.td_deque_last_stolen) = (-1); |
2555 | victim_tid = -2; // no successful victim found |
2556 | } |
2557 | } |
2558 | |
2559 | if (task == NULL__null) // break out of tasking loop |
2560 | break; |
2561 | |
2562 | // Found a task; execute it |
2563 | #if USE_ITT_BUILD1 && USE_ITT_NOTIFY1 |
2564 | if (__itt_sync_create_ptr__kmp_itt_sync_create_ptr__3_0 || KMP_ITT_DEBUG0) { |
2565 | if (itt_sync_obj == NULL__null) { // we are at fork barrier where we could not |
2566 | // get the object reliably |
2567 | itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier); |
2568 | } |
2569 | __kmp_itt_task_starting(itt_sync_obj); |
2570 | } |
2571 | #endif /* USE_ITT_BUILD && USE_ITT_NOTIFY */ |
2572 | __kmp_invoke_task(gtid, task, current_task); |
2573 | #if USE_ITT_BUILD1 |
2574 | if (itt_sync_obj != NULL__null) |
2575 | __kmp_itt_task_finished(itt_sync_obj); |
2576 | #endif /* USE_ITT_BUILD */ |
2577 | // If this thread is only partway through the barrier and the condition is |
2578 | // met, then return now, so that the barrier gather/release pattern can |
2579 | // proceed. If this thread is in the last spin loop in the barrier, |
2580 | // waiting to be released, we know that the termination condition will not |
2581 | // be satisified, so don't waste any cycles checking it. |
2582 | if (flag == NULL__null || (!final_spin && flag->done_check())) { |
2583 | KA_TRACE(if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); } |
2584 | 15,if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); } |
2585 | ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n",if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); } |
2586 | gtid))if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); }; |
2587 | return TRUE(!0); |
2588 | } |
2589 | if (thread->th.th_task_team == NULL__null) { |
2590 | break; |
2591 | } |
2592 | // Yield before executing next task |
2593 | KMP_YIELD(__kmp_library == library_throughput){ __kmp_x86_pause(); __kmp_yield((__kmp_library == library_throughput )); }; |
2594 | // If execution of a stolen task results in more tasks being placed on our |
2595 | // run queue, reset use_own_tasks |
2596 | if (!use_own_tasks && TCR_4(threads_data[tid].td.td_deque_ntasks)(threads_data[tid].td.td_deque_ntasks) != 0) { |
2597 | KA_TRACE(20, ("__kmp_execute_tasks_template: T#%d stolen task spawned "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d stolen task spawned " "other tasks, restart\n", gtid); } |
2598 | "other tasks, restart\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d stolen task spawned " "other tasks, restart\n", gtid); } |
2599 | gtid))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d stolen task spawned " "other tasks, restart\n", gtid); }; |
2600 | use_own_tasks = 1; |
2601 | new_victim = 0; |
2602 | } |
2603 | } |
2604 | |
2605 | // The task source has been exhausted. If in final spin loop of barrier, check |
2606 | // if termination condition is satisfied. |
2607 | #if OMP_45_ENABLED(50 >= 45) |
2608 | // The work queue may be empty but there might be proxy tasks still |
2609 | // executing |
2610 | if (final_spin && |
2611 | KMP_ATOMIC_LD_ACQ(¤t_task->td_incomplete_child_tasks)(¤t_task->td_incomplete_child_tasks)->load(std ::memory_order_acquire) == 0) |
2612 | #else |
2613 | if (final_spin) |
2614 | #endif |
2615 | { |
2616 | // First, decrement the #unfinished threads, if that has not already been |
2617 | // done. This decrement might be to the spin location, and result in the |
2618 | // termination condition being satisfied. |
2619 | if (!*thread_finished) { |
2620 | kmp_int32 count; |
2621 | |
2622 | count = KMP_ATOMIC_DEC(unfinished_threads)(unfinished_threads)->fetch_sub(1, std::memory_order_acq_rel ) - 1; |
2623 | KA_TRACE(20, ("__kmp_execute_tasks_template: T#%d dec "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d dec " "unfinished_threads to %d task_team=%p\n", gtid, count, task_team ); } |
2624 | "unfinished_threads to %d task_team=%p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d dec " "unfinished_threads to %d task_team=%p\n", gtid, count, task_team ); } |
2625 | gtid, count, task_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d dec " "unfinished_threads to %d task_team=%p\n", gtid, count, task_team ); }; |
2626 | *thread_finished = TRUE(!0); |
2627 | } |
2628 | |
2629 | // It is now unsafe to reference thread->th.th_team !!! |
2630 | // Decrementing task_team->tt.tt_unfinished_threads can allow the master |
2631 | // thread to pass through the barrier, where it might reset each thread's |
2632 | // th.th_team field for the next parallel region. If we can steal more |
2633 | // work, we know that this has not happened yet. |
2634 | if (flag != NULL__null && flag->done_check()) { |
2635 | KA_TRACE(if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); } |
2636 | 15,if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); } |
2637 | ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n",if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); } |
2638 | gtid))if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d spin condition satisfied\n" , gtid); }; |
2639 | return TRUE(!0); |
2640 | } |
2641 | } |
2642 | |
2643 | // If this thread's task team is NULL, master has recognized that there are |
2644 | // no more tasks; bail out |
2645 | if (thread->th.th_task_team == NULL__null) { |
2646 | KA_TRACE(15,if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d no more tasks\n" , gtid); } |
2647 | ("__kmp_execute_tasks_template: T#%d no more tasks\n", gtid))if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d no more tasks\n" , gtid); }; |
2648 | return FALSE0; |
2649 | } |
2650 | |
2651 | #if OMP_45_ENABLED(50 >= 45) |
2652 | // We could be getting tasks from target constructs; if this is the only |
2653 | // thread, keep trying to execute tasks from own queue |
2654 | if (nthreads == 1) |
2655 | use_own_tasks = 1; |
2656 | else |
2657 | #endif |
2658 | { |
2659 | KA_TRACE(15,if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d can't find work\n" , gtid); } |
2660 | ("__kmp_execute_tasks_template: T#%d can't find work\n", gtid))if (kmp_a_debug >= 15) { __kmp_debug_printf ("__kmp_execute_tasks_template: T#%d can't find work\n" , gtid); }; |
2661 | return FALSE0; |
2662 | } |
2663 | } |
2664 | } |
2665 | |
2666 | int __kmp_execute_tasks_32( |
2667 | kmp_info_t *thread, kmp_int32 gtid, kmp_flag_32 *flag, int final_spin, |
2668 | int *thread_finished USE_ITT_BUILD_ARG(void *itt_sync_obj), void *itt_sync_obj, |
2669 | kmp_int32 is_constrained) { |
2670 | return __kmp_execute_tasks_template( |
2671 | thread, gtid, flag, final_spin, |
2672 | thread_finished USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj, is_constrained); |
2673 | } |
2674 | |
2675 | int __kmp_execute_tasks_64( |
2676 | kmp_info_t *thread, kmp_int32 gtid, kmp_flag_64 *flag, int final_spin, |
2677 | int *thread_finished USE_ITT_BUILD_ARG(void *itt_sync_obj), void *itt_sync_obj, |
2678 | kmp_int32 is_constrained) { |
2679 | return __kmp_execute_tasks_template( |
2680 | thread, gtid, flag, final_spin, |
2681 | thread_finished USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj, is_constrained); |
2682 | } |
2683 | |
2684 | int __kmp_execute_tasks_oncore( |
2685 | kmp_info_t *thread, kmp_int32 gtid, kmp_flag_oncore *flag, int final_spin, |
2686 | int *thread_finished USE_ITT_BUILD_ARG(void *itt_sync_obj), void *itt_sync_obj, |
2687 | kmp_int32 is_constrained) { |
2688 | return __kmp_execute_tasks_template( |
2689 | thread, gtid, flag, final_spin, |
2690 | thread_finished USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj, is_constrained); |
2691 | } |
2692 | |
2693 | // __kmp_enable_tasking: Allocate task team and resume threads sleeping at the |
2694 | // next barrier so they can assist in executing enqueued tasks. |
2695 | // First thread in allocates the task team atomically. |
2696 | static void __kmp_enable_tasking(kmp_task_team_t *task_team, |
2697 | kmp_info_t *this_thr) { |
2698 | kmp_thread_data_t *threads_data; |
2699 | int nthreads, i, is_init_thread; |
2700 | |
2701 | KA_TRACE(10, ("__kmp_enable_tasking(enter): T#%d\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_enable_tasking(enter): T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2702)), (this_thr)->th.th_info.ds.ds_gtid)); } |
2702 | __kmp_gtid_from_thread(this_thr)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_enable_tasking(enter): T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2702)), (this_thr)->th.th_info.ds.ds_gtid)); }; |
2703 | |
2704 | KMP_DEBUG_ASSERT(task_team != NULL)((task_team != __null) ? 0 : __kmp_debug_assert("task_team != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2704)); |
2705 | KMP_DEBUG_ASSERT(this_thr->th.th_team != NULL)((this_thr->th.th_team != __null) ? 0 : __kmp_debug_assert ("this_thr->th.th_team != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2705)); |
2706 | |
2707 | nthreads = task_team->tt.tt_nproc; |
2708 | KMP_DEBUG_ASSERT(nthreads > 0)((nthreads > 0) ? 0 : __kmp_debug_assert("nthreads > 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2708)); |
2709 | KMP_DEBUG_ASSERT(nthreads == this_thr->th.th_team->t.t_nproc)((nthreads == this_thr->th.th_team->t.t_nproc) ? 0 : __kmp_debug_assert ("nthreads == this_thr->th.th_team->t.t_nproc", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2709)); |
2710 | |
2711 | // Allocate or increase the size of threads_data if necessary |
2712 | is_init_thread = __kmp_realloc_task_threads_data(this_thr, task_team); |
2713 | |
2714 | if (!is_init_thread) { |
2715 | // Some other thread already set up the array. |
2716 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_enable_tasking(exit): T#%d: threads array already set up.\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2719)), (this_thr)->th.th_info.ds.ds_gtid)); } |
2717 | 20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_enable_tasking(exit): T#%d: threads array already set up.\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2719)), (this_thr)->th.th_info.ds.ds_gtid)); } |
2718 | ("__kmp_enable_tasking(exit): T#%d: threads array already set up.\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_enable_tasking(exit): T#%d: threads array already set up.\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2719)), (this_thr)->th.th_info.ds.ds_gtid)); } |
2719 | __kmp_gtid_from_thread(this_thr)))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_enable_tasking(exit): T#%d: threads array already set up.\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2719)), (this_thr)->th.th_info.ds.ds_gtid)); }; |
2720 | return; |
2721 | } |
2722 | threads_data = (kmp_thread_data_t *)TCR_PTR(task_team->tt.tt_threads_data)((void *)(task_team->tt.tt_threads_data)); |
2723 | KMP_DEBUG_ASSERT(threads_data != NULL)((threads_data != __null) ? 0 : __kmp_debug_assert("threads_data != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2723)); |
2724 | |
2725 | if ((__kmp_tasking_mode == tskm_task_teams) && |
2726 | (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME(2147483647))) { |
2727 | // Release any threads sleeping at the barrier, so that they can steal |
2728 | // tasks and execute them. In extra barrier mode, tasks do not sleep |
2729 | // at the separate tasking barrier, so this isn't a problem. |
2730 | for (i = 0; i < nthreads; i++) { |
2731 | volatile void *sleep_loc; |
2732 | kmp_info_t *thread = threads_data[i].td.td_thr; |
2733 | |
2734 | if (i == this_thr->th.th_info.ds.ds_tid) { |
2735 | continue; |
2736 | } |
2737 | // Since we haven't locked the thread's suspend mutex lock at this |
2738 | // point, there is a small window where a thread might be putting |
2739 | // itself to sleep, but hasn't set the th_sleep_loc field yet. |
2740 | // To work around this, __kmp_execute_tasks_template() periodically checks |
2741 | // see if other threads are sleeping (using the same random mechanism that |
2742 | // is used for task stealing) and awakens them if they are. |
2743 | if ((sleep_loc = TCR_PTR(CCAST(void *, thread->th.th_sleep_loc))((void *)(const_cast<void *>(thread->th.th_sleep_loc )))) != |
2744 | NULL__null) { |
2745 | KF_TRACE(50, ("__kmp_enable_tasking: T#%d waking up thread T#%d\n",if (kmp_f_debug >= 50) { __kmp_debug_printf ("__kmp_enable_tasking: T#%d waking up thread T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2746)), (this_thr)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2747)), (thread)->th.th_info.ds.ds_gtid)); } |
2746 | __kmp_gtid_from_thread(this_thr),if (kmp_f_debug >= 50) { __kmp_debug_printf ("__kmp_enable_tasking: T#%d waking up thread T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2746)), (this_thr)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2747)), (thread)->th.th_info.ds.ds_gtid)); } |
2747 | __kmp_gtid_from_thread(thread)))if (kmp_f_debug >= 50) { __kmp_debug_printf ("__kmp_enable_tasking: T#%d waking up thread T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2746)), (this_thr)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2747)), (thread)->th.th_info.ds.ds_gtid)); }; |
2748 | __kmp_null_resume_wrapper(__kmp_gtid_from_thread(thread)((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2748)), (thread)->th.th_info.ds.ds_gtid), sleep_loc); |
2749 | } else { |
2750 | KF_TRACE(50, ("__kmp_enable_tasking: T#%d don't wake up thread T#%d\n",if (kmp_f_debug >= 50) { __kmp_debug_printf ("__kmp_enable_tasking: T#%d don't wake up thread T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2751)), (this_thr)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2752)), (thread)->th.th_info.ds.ds_gtid)); } |
2751 | __kmp_gtid_from_thread(this_thr),if (kmp_f_debug >= 50) { __kmp_debug_printf ("__kmp_enable_tasking: T#%d don't wake up thread T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2751)), (this_thr)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2752)), (thread)->th.th_info.ds.ds_gtid)); } |
2752 | __kmp_gtid_from_thread(thread)))if (kmp_f_debug >= 50) { __kmp_debug_printf ("__kmp_enable_tasking: T#%d don't wake up thread T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2751)), (this_thr)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2752)), (thread)->th.th_info.ds.ds_gtid)); }; |
2753 | } |
2754 | } |
2755 | } |
2756 | |
2757 | KA_TRACE(10, ("__kmp_enable_tasking(exit): T#%d\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_enable_tasking(exit): T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2758)), (this_thr)->th.th_info.ds.ds_gtid)); } |
2758 | __kmp_gtid_from_thread(this_thr)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_enable_tasking(exit): T#%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2758)), (this_thr)->th.th_info.ds.ds_gtid)); }; |
2759 | } |
2760 | |
2761 | /* // TODO: Check the comment consistency |
2762 | * Utility routines for "task teams". A task team (kmp_task_t) is kind of |
2763 | * like a shadow of the kmp_team_t data struct, with a different lifetime. |
2764 | * After a child * thread checks into a barrier and calls __kmp_release() from |
2765 | * the particular variant of __kmp_<barrier_kind>_barrier_gather(), it can no |
2766 | * longer assume that the kmp_team_t structure is intact (at any moment, the |
2767 | * master thread may exit the barrier code and free the team data structure, |
2768 | * and return the threads to the thread pool). |
2769 | * |
2770 | * This does not work with the the tasking code, as the thread is still |
2771 | * expected to participate in the execution of any tasks that may have been |
2772 | * spawned my a member of the team, and the thread still needs access to all |
2773 | * to each thread in the team, so that it can steal work from it. |
2774 | * |
2775 | * Enter the existence of the kmp_task_team_t struct. It employs a reference |
2776 | * counting mechanims, and is allocated by the master thread before calling |
2777 | * __kmp_<barrier_kind>_release, and then is release by the last thread to |
2778 | * exit __kmp_<barrier_kind>_release at the next barrier. I.e. the lifetimes |
2779 | * of the kmp_task_team_t structs for consecutive barriers can overlap |
2780 | * (and will, unless the master thread is the last thread to exit the barrier |
2781 | * release phase, which is not typical). |
2782 | * |
2783 | * The existence of such a struct is useful outside the context of tasking, |
2784 | * but for now, I'm trying to keep it specific to the OMP_30_ENABLED macro, |
2785 | * so that any performance differences show up when comparing the 2.5 vs. 3.0 |
2786 | * libraries. |
2787 | * |
2788 | * We currently use the existence of the threads array as an indicator that |
2789 | * tasks were spawned since the last barrier. If the structure is to be |
2790 | * useful outside the context of tasking, then this will have to change, but |
2791 | * not settting the field minimizes the performance impact of tasking on |
2792 | * barriers, when no explicit tasks were spawned (pushed, actually). |
2793 | */ |
2794 | |
2795 | static kmp_task_team_t *__kmp_free_task_teams = |
2796 | NULL__null; // Free list for task_team data structures |
2797 | // Lock for task team data structures |
2798 | kmp_bootstrap_lock_t __kmp_task_team_lock = |
2799 | KMP_BOOTSTRAP_LOCK_INITIALIZER(__kmp_task_team_lock){ { { true } , &((__kmp_task_team_lock)), __null, { 0U }, { 0U }, { 0 }, { -1 } } }; |
2800 | |
2801 | // __kmp_alloc_task_deque: |
2802 | // Allocates a task deque for a particular thread, and initialize the necessary |
2803 | // data structures relating to the deque. This only happens once per thread |
2804 | // per task team since task teams are recycled. No lock is needed during |
2805 | // allocation since each thread allocates its own deque. |
2806 | static void __kmp_alloc_task_deque(kmp_info_t *thread, |
2807 | kmp_thread_data_t *thread_data) { |
2808 | __kmp_init_bootstrap_lock(&thread_data->td.td_deque_lock); |
2809 | KMP_DEBUG_ASSERT(thread_data->td.td_deque == NULL)((thread_data->td.td_deque == __null) ? 0 : __kmp_debug_assert ("thread_data->td.td_deque == __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2809)); |
2810 | |
2811 | // Initialize last stolen task field to "none" |
2812 | thread_data->td.td_deque_last_stolen = -1; |
2813 | |
2814 | KMP_DEBUG_ASSERT(TCR_4(thread_data->td.td_deque_ntasks) == 0)(((thread_data->td.td_deque_ntasks) == 0) ? 0 : __kmp_debug_assert ("(thread_data->td.td_deque_ntasks) == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2814)); |
2815 | KMP_DEBUG_ASSERT(thread_data->td.td_deque_head == 0)((thread_data->td.td_deque_head == 0) ? 0 : __kmp_debug_assert ("thread_data->td.td_deque_head == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2815)); |
2816 | KMP_DEBUG_ASSERT(thread_data->td.td_deque_tail == 0)((thread_data->td.td_deque_tail == 0) ? 0 : __kmp_debug_assert ("thread_data->td.td_deque_tail == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2816)); |
2817 | |
2818 | KE_TRACE(if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_alloc_task_deque: T#%d allocating deque[%d] for thread_data %p\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2821)), (thread)->th.th_info.ds.ds_gtid), (1 << 8) , thread_data); } |
2819 | 10,if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_alloc_task_deque: T#%d allocating deque[%d] for thread_data %p\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2821)), (thread)->th.th_info.ds.ds_gtid), (1 << 8) , thread_data); } |
2820 | ("__kmp_alloc_task_deque: T#%d allocating deque[%d] for thread_data %p\n",if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_alloc_task_deque: T#%d allocating deque[%d] for thread_data %p\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2821)), (thread)->th.th_info.ds.ds_gtid), (1 << 8) , thread_data); } |
2821 | __kmp_gtid_from_thread(thread), INITIAL_TASK_DEQUE_SIZE, thread_data))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_alloc_task_deque: T#%d allocating deque[%d] for thread_data %p\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2821)), (thread)->th.th_info.ds.ds_gtid), (1 << 8) , thread_data); }; |
2822 | // Allocate space for task deque, and zero the deque |
2823 | // Cannot use __kmp_thread_calloc() because threads not around for |
2824 | // kmp_reap_task_team( ). |
2825 | thread_data->td.td_deque = (kmp_taskdata_t **)__kmp_allocate(___kmp_allocate(((1 << 8) * sizeof(kmp_taskdata_t *)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2826) |
2826 | INITIAL_TASK_DEQUE_SIZE * sizeof(kmp_taskdata_t *))___kmp_allocate(((1 << 8) * sizeof(kmp_taskdata_t *)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2826); |
2827 | thread_data->td.td_deque_size = INITIAL_TASK_DEQUE_SIZE(1 << 8); |
2828 | } |
2829 | |
2830 | // __kmp_realloc_task_deque: |
2831 | // Re-allocates a task deque for a particular thread, copies the content from |
2832 | // the old deque and adjusts the necessary data structures relating to the |
2833 | // deque. This operation must be done with a the deque_lock being held |
2834 | static void __kmp_realloc_task_deque(kmp_info_t *thread, |
2835 | kmp_thread_data_t *thread_data) { |
2836 | kmp_int32 size = TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size); |
2837 | kmp_int32 new_size = 2 * size; |
2838 | |
2839 | KE_TRACE(10, ("__kmp_realloc_task_deque: T#%d reallocating deque[from %d to "if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_deque: T#%d reallocating deque[from %d to " "%d] for thread_data %p\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2841)), (thread)->th.th_info.ds.ds_gtid), size, new_size , thread_data); } |
2840 | "%d] for thread_data %p\n",if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_deque: T#%d reallocating deque[from %d to " "%d] for thread_data %p\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2841)), (thread)->th.th_info.ds.ds_gtid), size, new_size , thread_data); } |
2841 | __kmp_gtid_from_thread(thread), size, new_size, thread_data))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_deque: T#%d reallocating deque[from %d to " "%d] for thread_data %p\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2841)), (thread)->th.th_info.ds.ds_gtid), size, new_size , thread_data); }; |
2842 | |
2843 | kmp_taskdata_t **new_deque = |
2844 | (kmp_taskdata_t **)__kmp_allocate(new_size * sizeof(kmp_taskdata_t *))___kmp_allocate((new_size * sizeof(kmp_taskdata_t *)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2844); |
2845 | |
2846 | int i, j; |
2847 | for (i = thread_data->td.td_deque_head, j = 0; j < size; |
2848 | i = (i + 1) & TASK_DEQUE_MASK(thread_data->td)((thread_data->td).td_deque_size - 1), j++) |
2849 | new_deque[j] = thread_data->td.td_deque[i]; |
2850 | |
2851 | __kmp_free(thread_data->td.td_deque)___kmp_free((thread_data->td.td_deque), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2851); |
2852 | |
2853 | thread_data->td.td_deque_head = 0; |
2854 | thread_data->td.td_deque_tail = size; |
2855 | thread_data->td.td_deque = new_deque; |
2856 | thread_data->td.td_deque_size = new_size; |
2857 | } |
2858 | |
2859 | // __kmp_free_task_deque: |
2860 | // Deallocates a task deque for a particular thread. Happens at library |
2861 | // deallocation so don't need to reset all thread data fields. |
2862 | static void __kmp_free_task_deque(kmp_thread_data_t *thread_data) { |
2863 | if (thread_data->td.td_deque != NULL__null) { |
2864 | __kmp_acquire_bootstrap_lock(&thread_data->td.td_deque_lock); |
2865 | TCW_4(thread_data->td.td_deque_ntasks, 0)(thread_data->td.td_deque_ntasks) = (0); |
2866 | __kmp_free(thread_data->td.td_deque)___kmp_free((thread_data->td.td_deque), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2866); |
2867 | thread_data->td.td_deque = NULL__null; |
2868 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
2869 | } |
2870 | |
2871 | #ifdef BUILD_TIED_TASK_STACK |
2872 | // GEH: Figure out what to do here for td_susp_tied_tasks |
2873 | if (thread_data->td.td_susp_tied_tasks.ts_entries != TASK_STACK_EMPTY) { |
2874 | __kmp_free_task_stack(__kmp_thread_from_gtid(gtid)((((gtid) >= 0) ? 0 : __kmp_debug_assert("(gtid) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2874)), __kmp_threads[(gtid)]), thread_data); |
2875 | } |
2876 | #endif // BUILD_TIED_TASK_STACK |
2877 | } |
2878 | |
2879 | // __kmp_realloc_task_threads_data: |
2880 | // Allocates a threads_data array for a task team, either by allocating an |
2881 | // initial array or enlarging an existing array. Only the first thread to get |
2882 | // the lock allocs or enlarges the array and re-initializes the array eleemnts. |
2883 | // That thread returns "TRUE", the rest return "FALSE". |
2884 | // Assumes that the new array size is given by task_team -> tt.tt_nproc. |
2885 | // The current size is given by task_team -> tt.tt_max_threads. |
2886 | static int __kmp_realloc_task_threads_data(kmp_info_t *thread, |
2887 | kmp_task_team_t *task_team) { |
2888 | kmp_thread_data_t **threads_data_p; |
2889 | kmp_int32 nthreads, maxthreads; |
2890 | int is_init_thread = FALSE0; |
2891 | |
2892 | if (TCR_4(task_team->tt.tt_found_tasks)(task_team->tt.tt_found_tasks)) { |
2893 | // Already reallocated and initialized. |
2894 | return FALSE0; |
2895 | } |
2896 | |
2897 | threads_data_p = &task_team->tt.tt_threads_data; |
2898 | nthreads = task_team->tt.tt_nproc; |
2899 | maxthreads = task_team->tt.tt_max_threads; |
2900 | |
2901 | // All threads must lock when they encounter the first task of the implicit |
2902 | // task region to make sure threads_data fields are (re)initialized before |
2903 | // used. |
2904 | __kmp_acquire_bootstrap_lock(&task_team->tt.tt_threads_lock); |
2905 | |
2906 | if (!TCR_4(task_team->tt.tt_found_tasks)(task_team->tt.tt_found_tasks)) { |
2907 | // first thread to enable tasking |
2908 | kmp_team_t *team = thread->th.th_team; |
2909 | int i; |
2910 | |
2911 | is_init_thread = TRUE(!0); |
2912 | if (maxthreads < nthreads) { |
2913 | |
2914 | if (*threads_data_p != NULL__null) { |
2915 | kmp_thread_data_t *old_data = *threads_data_p; |
2916 | kmp_thread_data_t *new_data = NULL__null; |
2917 | |
2918 | KE_TRACE(if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d reallocating " "threads data for task_team %p, new_size = %d, old_size = %d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2922)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads , maxthreads); } |
2919 | 10,if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d reallocating " "threads data for task_team %p, new_size = %d, old_size = %d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2922)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads , maxthreads); } |
2920 | ("__kmp_realloc_task_threads_data: T#%d reallocating "if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d reallocating " "threads data for task_team %p, new_size = %d, old_size = %d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2922)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads , maxthreads); } |
2921 | "threads data for task_team %p, new_size = %d, old_size = %d\n",if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d reallocating " "threads data for task_team %p, new_size = %d, old_size = %d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2922)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads , maxthreads); } |
2922 | __kmp_gtid_from_thread(thread), task_team, nthreads, maxthreads))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d reallocating " "threads data for task_team %p, new_size = %d, old_size = %d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2922)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads , maxthreads); }; |
2923 | // Reallocate threads_data to have more elements than current array |
2924 | // Cannot use __kmp_thread_realloc() because threads not around for |
2925 | // kmp_reap_task_team( ). Note all new array entries are initialized |
2926 | // to zero by __kmp_allocate(). |
2927 | new_data = (kmp_thread_data_t *)__kmp_allocate(___kmp_allocate((nthreads * sizeof(kmp_thread_data_t)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2928) |
2928 | nthreads * sizeof(kmp_thread_data_t))___kmp_allocate((nthreads * sizeof(kmp_thread_data_t)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2928); |
2929 | // copy old data to new data |
2930 | KMP_MEMCPY_S((void *)new_data, nthreads * sizeof(kmp_thread_data_t),memcpy((void *)new_data, (void *)old_data, maxthreads * sizeof (kmp_thread_data_t)) |
2931 | (void *)old_data, maxthreads * sizeof(kmp_thread_data_t))memcpy((void *)new_data, (void *)old_data, maxthreads * sizeof (kmp_thread_data_t)); |
2932 | |
2933 | #ifdef BUILD_TIED_TASK_STACK |
2934 | // GEH: Figure out if this is the right thing to do |
2935 | for (i = maxthreads; i < nthreads; i++) { |
2936 | kmp_thread_data_t *thread_data = &(*threads_data_p)[i]; |
2937 | __kmp_init_task_stack(__kmp_gtid_from_thread(thread)((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2937)), (thread)->th.th_info.ds.ds_gtid), thread_data); |
2938 | } |
2939 | #endif // BUILD_TIED_TASK_STACK |
2940 | // Install the new data and free the old data |
2941 | (*threads_data_p) = new_data; |
2942 | __kmp_free(old_data)___kmp_free((old_data), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2942); |
2943 | } else { |
2944 | KE_TRACE(10, ("__kmp_realloc_task_threads_data: T#%d allocating "if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d allocating " "threads data for task_team %p, size = %d\n", ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2946)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads ); } |
2945 | "threads data for task_team %p, size = %d\n",if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d allocating " "threads data for task_team %p, size = %d\n", ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2946)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads ); } |
2946 | __kmp_gtid_from_thread(thread), task_team, nthreads))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_realloc_task_threads_data: T#%d allocating " "threads data for task_team %p, size = %d\n", ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2946)), (thread)->th.th_info.ds.ds_gtid), task_team, nthreads ); }; |
2947 | // Make the initial allocate for threads_data array, and zero entries |
2948 | // Cannot use __kmp_thread_calloc() because threads not around for |
2949 | // kmp_reap_task_team( ). |
2950 | ANNOTATE_IGNORE_WRITES_BEGIN(); |
2951 | *threads_data_p = (kmp_thread_data_t *)__kmp_allocate(___kmp_allocate((nthreads * sizeof(kmp_thread_data_t)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2952) |
2952 | nthreads * sizeof(kmp_thread_data_t))___kmp_allocate((nthreads * sizeof(kmp_thread_data_t)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2952); |
2953 | ANNOTATE_IGNORE_WRITES_END(); |
2954 | #ifdef BUILD_TIED_TASK_STACK |
2955 | // GEH: Figure out if this is the right thing to do |
2956 | for (i = 0; i < nthreads; i++) { |
2957 | kmp_thread_data_t *thread_data = &(*threads_data_p)[i]; |
2958 | __kmp_init_task_stack(__kmp_gtid_from_thread(thread)((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2958)), (thread)->th.th_info.ds.ds_gtid), thread_data); |
2959 | } |
2960 | #endif // BUILD_TIED_TASK_STACK |
2961 | } |
2962 | task_team->tt.tt_max_threads = nthreads; |
2963 | } else { |
2964 | // If array has (more than) enough elements, go ahead and use it |
2965 | KMP_DEBUG_ASSERT(*threads_data_p != NULL)((*threads_data_p != __null) ? 0 : __kmp_debug_assert("*threads_data_p != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2965)); |
2966 | } |
2967 | |
2968 | // initialize threads_data pointers back to thread_info structures |
2969 | for (i = 0; i < nthreads; i++) { |
2970 | kmp_thread_data_t *thread_data = &(*threads_data_p)[i]; |
2971 | thread_data->td.td_thr = team->t.t_threads[i]; |
2972 | |
2973 | if (thread_data->td.td_deque_last_stolen >= nthreads) { |
2974 | // The last stolen field survives across teams / barrier, and the number |
2975 | // of threads may have changed. It's possible (likely?) that a new |
2976 | // parallel region will exhibit the same behavior as previous region. |
2977 | thread_data->td.td_deque_last_stolen = -1; |
2978 | } |
2979 | } |
2980 | |
2981 | KMP_MB(); |
2982 | TCW_SYNC_4(task_team->tt.tt_found_tasks, TRUE)(task_team->tt.tt_found_tasks) = ((!0)); |
2983 | } |
2984 | |
2985 | __kmp_release_bootstrap_lock(&task_team->tt.tt_threads_lock); |
2986 | return is_init_thread; |
2987 | } |
2988 | |
2989 | // __kmp_free_task_threads_data: |
2990 | // Deallocates a threads_data array for a task team, including any attached |
2991 | // tasking deques. Only occurs at library shutdown. |
2992 | static void __kmp_free_task_threads_data(kmp_task_team_t *task_team) { |
2993 | __kmp_acquire_bootstrap_lock(&task_team->tt.tt_threads_lock); |
2994 | if (task_team->tt.tt_threads_data != NULL__null) { |
2995 | int i; |
2996 | for (i = 0; i < task_team->tt.tt_max_threads; i++) { |
2997 | __kmp_free_task_deque(&task_team->tt.tt_threads_data[i]); |
2998 | } |
2999 | __kmp_free(task_team->tt.tt_threads_data)___kmp_free((task_team->tt.tt_threads_data), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 2999); |
3000 | task_team->tt.tt_threads_data = NULL__null; |
3001 | } |
3002 | __kmp_release_bootstrap_lock(&task_team->tt.tt_threads_lock); |
3003 | } |
3004 | |
3005 | // __kmp_allocate_task_team: |
3006 | // Allocates a task team associated with a specific team, taking it from |
3007 | // the global task team free list if possible. Also initializes data |
3008 | // structures. |
3009 | static kmp_task_team_t *__kmp_allocate_task_team(kmp_info_t *thread, |
3010 | kmp_team_t *team) { |
3011 | kmp_task_team_t *task_team = NULL__null; |
3012 | int nthreads; |
3013 | |
3014 | KA_TRACE(20, ("__kmp_allocate_task_team: T#%d entering; team = %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d entering; team = %p\n" , (thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3015)), (thread)->th.th_info.ds.ds_gtid) : -1), team); } |
3015 | (thread ? __kmp_gtid_from_thread(thread) : -1), team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d entering; team = %p\n" , (thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3015)), (thread)->th.th_info.ds.ds_gtid) : -1), team); }; |
3016 | |
3017 | if (TCR_PTR(__kmp_free_task_teams)((void *)(__kmp_free_task_teams)) != NULL__null) { |
3018 | // Take a task team from the task team pool |
3019 | __kmp_acquire_bootstrap_lock(&__kmp_task_team_lock); |
3020 | if (__kmp_free_task_teams != NULL__null) { |
3021 | task_team = __kmp_free_task_teams; |
3022 | TCW_PTR(__kmp_free_task_teams, task_team->tt.tt_next)((__kmp_free_task_teams)) = ((task_team->tt.tt_next)); |
3023 | task_team->tt.tt_next = NULL__null; |
3024 | } |
3025 | __kmp_release_bootstrap_lock(&__kmp_task_team_lock); |
3026 | } |
3027 | |
3028 | if (task_team == NULL__null) { |
3029 | KE_TRACE(10, ("__kmp_allocate_task_team: T#%d allocating "if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d allocating " "task team for team %p\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3031)), (thread)->th.th_info.ds.ds_gtid), team); } |
3030 | "task team for team %p\n",if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d allocating " "task team for team %p\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3031)), (thread)->th.th_info.ds.ds_gtid), team); } |
3031 | __kmp_gtid_from_thread(thread), team))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d allocating " "task team for team %p\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3031)), (thread)->th.th_info.ds.ds_gtid), team); }; |
3032 | // Allocate a new task team if one is not available. |
3033 | // Cannot use __kmp_thread_malloc() because threads not around for |
3034 | // kmp_reap_task_team( ). |
3035 | task_team = (kmp_task_team_t *)__kmp_allocate(sizeof(kmp_task_team_t))___kmp_allocate((sizeof(kmp_task_team_t)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3035); |
3036 | __kmp_init_bootstrap_lock(&task_team->tt.tt_threads_lock); |
3037 | // AC: __kmp_allocate zeroes returned memory |
3038 | // task_team -> tt.tt_threads_data = NULL; |
3039 | // task_team -> tt.tt_max_threads = 0; |
3040 | // task_team -> tt.tt_next = NULL; |
3041 | } |
3042 | |
3043 | TCW_4(task_team->tt.tt_found_tasks, FALSE)(task_team->tt.tt_found_tasks) = (0); |
3044 | #if OMP_45_ENABLED(50 >= 45) |
3045 | TCW_4(task_team->tt.tt_found_proxy_tasks, FALSE)(task_team->tt.tt_found_proxy_tasks) = (0); |
3046 | #endif |
3047 | task_team->tt.tt_nproc = nthreads = team->t.t_nproc; |
3048 | |
3049 | KMP_ATOMIC_ST_REL(&task_team->tt.tt_unfinished_threads, nthreads)(&task_team->tt.tt_unfinished_threads)->store(nthreads , std::memory_order_release); |
3050 | TCW_4(task_team->tt.tt_active, TRUE)(task_team->tt.tt_active) = ((!0)); |
3051 | |
3052 | KA_TRACE(20, ("__kmp_allocate_task_team: T#%d exiting; task_team = %p "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d exiting; task_team = %p " "unfinished_threads init'd to %d\n", (thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3054)), (thread)->th.th_info.ds.ds_gtid) : -1), task_team , (&task_team->tt.tt_unfinished_threads)->load(std:: memory_order_relaxed)); } |
3053 | "unfinished_threads init'd to %d\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d exiting; task_team = %p " "unfinished_threads init'd to %d\n", (thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3054)), (thread)->th.th_info.ds.ds_gtid) : -1), task_team , (&task_team->tt.tt_unfinished_threads)->load(std:: memory_order_relaxed)); } |
3054 | (thread ? __kmp_gtid_from_thread(thread) : -1), task_team,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d exiting; task_team = %p " "unfinished_threads init'd to %d\n", (thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3054)), (thread)->th.th_info.ds.ds_gtid) : -1), task_team , (&task_team->tt.tt_unfinished_threads)->load(std:: memory_order_relaxed)); } |
3055 | KMP_ATOMIC_LD_RLX(&task_team->tt.tt_unfinished_threads)))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_allocate_task_team: T#%d exiting; task_team = %p " "unfinished_threads init'd to %d\n", (thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3054)), (thread)->th.th_info.ds.ds_gtid) : -1), task_team , (&task_team->tt.tt_unfinished_threads)->load(std:: memory_order_relaxed)); }; |
3056 | return task_team; |
3057 | } |
3058 | |
3059 | // __kmp_free_task_team: |
3060 | // Frees the task team associated with a specific thread, and adds it |
3061 | // to the global task team free list. |
3062 | void __kmp_free_task_team(kmp_info_t *thread, kmp_task_team_t *task_team) { |
3063 | KA_TRACE(20, ("__kmp_free_task_team: T#%d task_team = %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_team: T#%d task_team = %p\n" , thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3064)), (thread)->th.th_info.ds.ds_gtid) : -1, task_team ); } |
3064 | thread ? __kmp_gtid_from_thread(thread) : -1, task_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_free_task_team: T#%d task_team = %p\n" , thread ? ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3064)), (thread)->th.th_info.ds.ds_gtid) : -1, task_team ); }; |
3065 | |
3066 | // Put task team back on free list |
3067 | __kmp_acquire_bootstrap_lock(&__kmp_task_team_lock); |
3068 | |
3069 | KMP_DEBUG_ASSERT(task_team->tt.tt_next == NULL)((task_team->tt.tt_next == __null) ? 0 : __kmp_debug_assert ("task_team->tt.tt_next == __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3069)); |
3070 | task_team->tt.tt_next = __kmp_free_task_teams; |
3071 | TCW_PTR(__kmp_free_task_teams, task_team)((__kmp_free_task_teams)) = ((task_team)); |
3072 | |
3073 | __kmp_release_bootstrap_lock(&__kmp_task_team_lock); |
3074 | } |
3075 | |
3076 | // __kmp_reap_task_teams: |
3077 | // Free all the task teams on the task team free list. |
3078 | // Should only be done during library shutdown. |
3079 | // Cannot do anything that needs a thread structure or gtid since they are |
3080 | // already gone. |
3081 | void __kmp_reap_task_teams(void) { |
3082 | kmp_task_team_t *task_team; |
3083 | |
3084 | if (TCR_PTR(__kmp_free_task_teams)((void *)(__kmp_free_task_teams)) != NULL__null) { |
3085 | // Free all task_teams on the free list |
3086 | __kmp_acquire_bootstrap_lock(&__kmp_task_team_lock); |
3087 | while ((task_team = __kmp_free_task_teams) != NULL__null) { |
3088 | __kmp_free_task_teams = task_team->tt.tt_next; |
3089 | task_team->tt.tt_next = NULL__null; |
3090 | |
3091 | // Free threads_data if necessary |
3092 | if (task_team->tt.tt_threads_data != NULL__null) { |
3093 | __kmp_free_task_threads_data(task_team); |
3094 | } |
3095 | __kmp_free(task_team)___kmp_free((task_team), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3095); |
3096 | } |
3097 | __kmp_release_bootstrap_lock(&__kmp_task_team_lock); |
3098 | } |
3099 | } |
3100 | |
3101 | // __kmp_wait_to_unref_task_teams: |
3102 | // Some threads could still be in the fork barrier release code, possibly |
3103 | // trying to steal tasks. Wait for each thread to unreference its task team. |
3104 | void __kmp_wait_to_unref_task_teams(void) { |
3105 | kmp_info_t *thread; |
3106 | kmp_uint32 spins; |
3107 | int done; |
3108 | |
3109 | KMP_INIT_YIELD(spins){ (spins) = __kmp_yield_init; }; |
3110 | |
3111 | for (;;) { |
3112 | done = TRUE(!0); |
3113 | |
3114 | // TODO: GEH - this may be is wrong because some sync would be necessary |
3115 | // in case threads are added to the pool during the traversal. Need to |
3116 | // verify that lock for thread pool is held when calling this routine. |
3117 | for (thread = CCAST(kmp_info_t *, __kmp_thread_pool)const_cast<kmp_info_t *>(__kmp_thread_pool); thread != NULL__null; |
3118 | thread = thread->th.th_next_pool) { |
3119 | #if KMP_OS_WINDOWS0 |
3120 | DWORD exit_val; |
3121 | #endif |
3122 | if (TCR_PTR(thread->th.th_task_team)((void *)(thread->th.th_task_team)) == NULL__null) { |
3123 | KA_TRACE(10, ("__kmp_wait_to_unref_task_team: T#%d task_team == NULL\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: T#%d task_team == NULL\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3124)), (thread)->th.th_info.ds.ds_gtid)); } |
3124 | __kmp_gtid_from_thread(thread)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: T#%d task_team == NULL\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3124)), (thread)->th.th_info.ds.ds_gtid)); }; |
3125 | continue; |
3126 | } |
3127 | #if KMP_OS_WINDOWS0 |
3128 | // TODO: GEH - add this check for Linux* OS / OS X* as well? |
3129 | if (!__kmp_is_thread_alive(thread, &exit_val)) { |
3130 | thread->th.th_task_team = NULL__null; |
3131 | continue; |
3132 | } |
3133 | #endif |
3134 | |
3135 | done = FALSE0; // Because th_task_team pointer is not NULL for this thread |
3136 | |
3137 | KA_TRACE(10, ("__kmp_wait_to_unref_task_team: Waiting for T#%d to "if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: Waiting for T#%d to " "unreference task_team\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3139)), (thread)->th.th_info.ds.ds_gtid)); } |
3138 | "unreference task_team\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: Waiting for T#%d to " "unreference task_team\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3139)), (thread)->th.th_info.ds.ds_gtid)); } |
3139 | __kmp_gtid_from_thread(thread)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: Waiting for T#%d to " "unreference task_team\n", ((((thread) != __null) ? 0 : __kmp_debug_assert ("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3139)), (thread)->th.th_info.ds.ds_gtid)); }; |
3140 | |
3141 | if (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME(2147483647)) { |
3142 | volatile void *sleep_loc; |
3143 | // If the thread is sleeping, awaken it. |
3144 | if ((sleep_loc = TCR_PTR(CCAST(void *, thread->th.th_sleep_loc))((void *)(const_cast<void *>(thread->th.th_sleep_loc )))) != |
3145 | NULL__null) { |
3146 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: T#%d waking up thread T#%d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid)); } |
3147 | 10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: T#%d waking up thread T#%d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid)); } |
3148 | ("__kmp_wait_to_unref_task_team: T#%d waking up thread T#%d\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: T#%d waking up thread T#%d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid)); } |
3149 | __kmp_gtid_from_thread(thread), __kmp_gtid_from_thread(thread)))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_wait_to_unref_task_team: T#%d waking up thread T#%d\n" , ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid), ((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3149)), (thread)->th.th_info.ds.ds_gtid)); }; |
3150 | __kmp_null_resume_wrapper(__kmp_gtid_from_thread(thread)((((thread) != __null) ? 0 : __kmp_debug_assert("(thread) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3150)), (thread)->th.th_info.ds.ds_gtid), sleep_loc); |
3151 | } |
3152 | } |
3153 | } |
3154 | if (done) { |
3155 | break; |
3156 | } |
3157 | |
3158 | // If we are oversubscribed, or have waited a bit (and library mode is |
3159 | // throughput), yield. Pause is in the following code. |
3160 | KMP_YIELD(TCR_4(__kmp_nth) > __kmp_avail_proc){ __kmp_x86_pause(); __kmp_yield(((__kmp_nth) > __kmp_avail_proc )); }; |
3161 | KMP_YIELD_SPIN(spins){ __kmp_x86_pause(); (spins) -= 2; if (!(spins)) { __kmp_yield (1); (spins) = __kmp_yield_next; } }; // Yields only if KMP_LIBRARY=throughput |
3162 | } |
3163 | } |
3164 | |
3165 | // __kmp_task_team_setup: Create a task_team for the current team, but use |
3166 | // an already created, unused one if it already exists. |
3167 | void __kmp_task_team_setup(kmp_info_t *this_thr, kmp_team_t *team, int always) { |
3168 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3168)); |
3169 | |
3170 | // If this task_team hasn't been created yet, allocate it. It will be used in |
3171 | // the region after the next. |
3172 | // If it exists, it is the current task team and shouldn't be touched yet as |
3173 | // it may still be in use. |
3174 | if (team->t.t_task_team[this_thr->th.th_task_state] == NULL__null && |
3175 | (always || team->t.t_nproc > 1)) { |
3176 | team->t.t_task_team[this_thr->th.th_task_state] = |
3177 | __kmp_allocate_task_team(this_thr, team); |
3178 | KA_TRACE(20, ("__kmp_task_team_setup: Master T#%d created new task_team %p "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created new task_team %p " "for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3180)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [this_thr->th.th_task_state], ((team != __null) ? team-> t.t_id : -1), this_thr->th.th_task_state); } |
3179 | "for team %d at parity=%d\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created new task_team %p " "for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3180)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [this_thr->th.th_task_state], ((team != __null) ? team-> t.t_id : -1), this_thr->th.th_task_state); } |
3180 | __kmp_gtid_from_thread(this_thr),if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created new task_team %p " "for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3180)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [this_thr->th.th_task_state], ((team != __null) ? team-> t.t_id : -1), this_thr->th.th_task_state); } |
3181 | team->t.t_task_team[this_thr->th.th_task_state],if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created new task_team %p " "for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3180)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [this_thr->th.th_task_state], ((team != __null) ? team-> t.t_id : -1), this_thr->th.th_task_state); } |
3182 | ((team != NULL) ? team->t.t_id : -1),if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created new task_team %p " "for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3180)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [this_thr->th.th_task_state], ((team != __null) ? team-> t.t_id : -1), this_thr->th.th_task_state); } |
3183 | this_thr->th.th_task_state))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created new task_team %p " "for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3180)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [this_thr->th.th_task_state], ((team != __null) ? team-> t.t_id : -1), this_thr->th.th_task_state); }; |
3184 | } |
3185 | |
3186 | // After threads exit the release, they will call sync, and then point to this |
3187 | // other task_team; make sure it is allocated and properly initialized. As |
3188 | // threads spin in the barrier release phase, they will continue to use the |
3189 | // previous task_team struct(above), until they receive the signal to stop |
3190 | // checking for tasks (they can't safely reference the kmp_team_t struct, |
3191 | // which could be reallocated by the master thread). No task teams are formed |
3192 | // for serialized teams. |
3193 | if (team->t.t_nproc > 1) { |
3194 | int other_team = 1 - this_thr->th.th_task_state; |
3195 | if (team->t.t_task_team[other_team] == NULL__null) { // setup other team as well |
3196 | team->t.t_task_team[other_team] = |
3197 | __kmp_allocate_task_team(this_thr, team); |
3198 | KA_TRACE(20, ("__kmp_task_team_setup: Master T#%d created second new "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created second new " "task_team %p for team %d at parity=%d\n", ((((this_thr) != __null ) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3200)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3199 | "task_team %p for team %d at parity=%d\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created second new " "task_team %p for team %d at parity=%d\n", ((((this_thr) != __null ) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3200)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3200 | __kmp_gtid_from_thread(this_thr),if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created second new " "task_team %p for team %d at parity=%d\n", ((((this_thr) != __null ) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3200)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3201 | team->t.t_task_team[other_team],if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created second new " "task_team %p for team %d at parity=%d\n", ((((this_thr) != __null ) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3200)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3202 | ((team != NULL) ? team->t.t_id : -1), other_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d created second new " "task_team %p for team %d at parity=%d\n", ((((this_thr) != __null ) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3200)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); }; |
3203 | } else { // Leave the old task team struct in place for the upcoming region; |
3204 | // adjust as needed |
3205 | kmp_task_team_t *task_team = team->t.t_task_team[other_team]; |
3206 | if (!task_team->tt.tt_active || |
3207 | team->t.t_nproc != task_team->tt.tt_nproc) { |
3208 | TCW_4(task_team->tt.tt_nproc, team->t.t_nproc)(task_team->tt.tt_nproc) = (team->t.t_nproc); |
3209 | TCW_4(task_team->tt.tt_found_tasks, FALSE)(task_team->tt.tt_found_tasks) = (0); |
3210 | #if OMP_45_ENABLED(50 >= 45) |
3211 | TCW_4(task_team->tt.tt_found_proxy_tasks, FALSE)(task_team->tt.tt_found_proxy_tasks) = (0); |
3212 | #endif |
3213 | KMP_ATOMIC_ST_REL(&task_team->tt.tt_unfinished_threads,(&task_team->tt.tt_unfinished_threads)->store(team-> t.t_nproc, std::memory_order_release) |
3214 | team->t.t_nproc)(&task_team->tt.tt_unfinished_threads)->store(team-> t.t_nproc, std::memory_order_release); |
3215 | TCW_4(task_team->tt.tt_active, TRUE)(task_team->tt.tt_active) = ((!0)); |
3216 | } |
3217 | // if team size has changed, the first thread to enable tasking will |
3218 | // realloc threads_data if necessary |
3219 | KA_TRACE(20, ("__kmp_task_team_setup: Master T#%d reset next task_team "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d reset next task_team " "%p for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3221)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3220 | "%p for team %d at parity=%d\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d reset next task_team " "%p for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3221)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3221 | __kmp_gtid_from_thread(this_thr),if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d reset next task_team " "%p for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3221)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3222 | team->t.t_task_team[other_team],if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d reset next task_team " "%p for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3221)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); } |
3223 | ((team != NULL) ? team->t.t_id : -1), other_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_setup: Master T#%d reset next task_team " "%p for team %d at parity=%d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3221)), (this_thr)->th.th_info.ds.ds_gtid), team->t.t_task_team [other_team], ((team != __null) ? team->t.t_id : -1), other_team ); }; |
3224 | } |
3225 | } |
3226 | } |
3227 | |
3228 | // __kmp_task_team_sync: Propagation of task team data from team to threads |
3229 | // which happens just after the release phase of a team barrier. This may be |
3230 | // called by any thread, but only for teams with # threads > 1. |
3231 | void __kmp_task_team_sync(kmp_info_t *this_thr, kmp_team_t *team) { |
3232 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3232)); |
3233 | |
3234 | // Toggle the th_task_state field, to switch which task_team this thread |
3235 | // refers to |
3236 | this_thr->th.th_task_state = 1 - this_thr->th.th_task_state; |
3237 | // It is now safe to propagate the task team pointer from the team struct to |
3238 | // the current thread. |
3239 | TCW_PTR(this_thr->th.th_task_team,((this_thr->th.th_task_team)) = ((team->t.t_task_team[this_thr ->th.th_task_state])) |
3240 | team->t.t_task_team[this_thr->th.th_task_state])((this_thr->th.th_task_team)) = ((team->t.t_task_team[this_thr ->th.th_task_state])); |
3241 | KA_TRACE(20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_sync: Thread T#%d task team switched to task_team " "%p from Team #%d (parity=%d)\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3244)), (this_thr)->th.th_info.ds.ds_gtid), this_thr-> th.th_task_team, ((team != __null) ? team->t.t_id : -1), this_thr ->th.th_task_state); } |
3242 | ("__kmp_task_team_sync: Thread T#%d task team switched to task_team "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_sync: Thread T#%d task team switched to task_team " "%p from Team #%d (parity=%d)\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3244)), (this_thr)->th.th_info.ds.ds_gtid), this_thr-> th.th_task_team, ((team != __null) ? team->t.t_id : -1), this_thr ->th.th_task_state); } |
3243 | "%p from Team #%d (parity=%d)\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_sync: Thread T#%d task team switched to task_team " "%p from Team #%d (parity=%d)\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3244)), (this_thr)->th.th_info.ds.ds_gtid), this_thr-> th.th_task_team, ((team != __null) ? team->t.t_id : -1), this_thr ->th.th_task_state); } |
3244 | __kmp_gtid_from_thread(this_thr), this_thr->th.th_task_team,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_sync: Thread T#%d task team switched to task_team " "%p from Team #%d (parity=%d)\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3244)), (this_thr)->th.th_info.ds.ds_gtid), this_thr-> th.th_task_team, ((team != __null) ? team->t.t_id : -1), this_thr ->th.th_task_state); } |
3245 | ((team != NULL) ? team->t.t_id : -1), this_thr->th.th_task_state))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_sync: Thread T#%d task team switched to task_team " "%p from Team #%d (parity=%d)\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3244)), (this_thr)->th.th_info.ds.ds_gtid), this_thr-> th.th_task_team, ((team != __null) ? team->t.t_id : -1), this_thr ->th.th_task_state); }; |
3246 | } |
3247 | |
3248 | // __kmp_task_team_wait: Master thread waits for outstanding tasks after the |
3249 | // barrier gather phase. Only called by master thread if #threads in team > 1 or |
3250 | // if proxy tasks were created. |
3251 | // |
3252 | // wait is a flag that defaults to 1 (see kmp.h), but waiting can be turned off |
3253 | // by passing in 0 optionally as the last argument. When wait is zero, master |
3254 | // thread does not wait for unfinished_threads to reach 0. |
3255 | void __kmp_task_team_wait( |
3256 | kmp_info_t *this_thr, |
3257 | kmp_team_t *team USE_ITT_BUILD_ARG(void *itt_sync_obj), void *itt_sync_obj, int wait) { |
3258 | kmp_task_team_t *task_team = team->t.t_task_team[this_thr->th.th_task_state]; |
3259 | |
3260 | KMP_DEBUG_ASSERT(__kmp_tasking_mode != tskm_immediate_exec)((__kmp_tasking_mode != tskm_immediate_exec) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode != tskm_immediate_exec", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3260)); |
3261 | KMP_DEBUG_ASSERT(task_team == this_thr->th.th_task_team)((task_team == this_thr->th.th_task_team) ? 0 : __kmp_debug_assert ("task_team == this_thr->th.th_task_team", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3261)); |
3262 | |
3263 | if ((task_team != NULL__null) && KMP_TASKING_ENABLED(task_team)(((task_team)->tt.tt_found_tasks) == (!0))) { |
3264 | if (wait) { |
3265 | KA_TRACE(20, ("__kmp_task_team_wait: Master T#%d waiting for all tasks "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d waiting for all tasks " "(for unfinished_threads to reach 0) on task_team = %p\n", ( (((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3267)), (this_thr)->th.th_info.ds.ds_gtid), task_team); } |
3266 | "(for unfinished_threads to reach 0) on task_team = %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d waiting for all tasks " "(for unfinished_threads to reach 0) on task_team = %p\n", ( (((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3267)), (this_thr)->th.th_info.ds.ds_gtid), task_team); } |
3267 | __kmp_gtid_from_thread(this_thr), task_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d waiting for all tasks " "(for unfinished_threads to reach 0) on task_team = %p\n", ( (((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3267)), (this_thr)->th.th_info.ds.ds_gtid), task_team); }; |
3268 | // Worker threads may have dropped through to release phase, but could |
3269 | // still be executing tasks. Wait here for tasks to complete. To avoid |
3270 | // memory contention, only master thread checks termination condition. |
3271 | kmp_flag_32 flag(RCAST(std::atomic<kmp_uint32> *,reinterpret_cast<std::atomic<kmp_uint32> *>(& task_team->tt.tt_unfinished_threads) |
3272 | &task_team->tt.tt_unfinished_threads)reinterpret_cast<std::atomic<kmp_uint32> *>(& task_team->tt.tt_unfinished_threads), |
3273 | 0U); |
3274 | flag.wait(this_thr, TRUE(!0) USE_ITT_BUILD_ARG(itt_sync_obj), itt_sync_obj); |
3275 | } |
3276 | // Deactivate the old task team, so that the worker threads will stop |
3277 | // referencing it while spinning. |
3278 | KA_TRACE(if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d deactivating task_team %p: " "setting active to false, setting local and team's pointer to NULL\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3282)), (this_thr)->th.th_info.ds.ds_gtid), task_team); } |
3279 | 20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d deactivating task_team %p: " "setting active to false, setting local and team's pointer to NULL\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3282)), (this_thr)->th.th_info.ds.ds_gtid), task_team); } |
3280 | ("__kmp_task_team_wait: Master T#%d deactivating task_team %p: "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d deactivating task_team %p: " "setting active to false, setting local and team's pointer to NULL\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3282)), (this_thr)->th.th_info.ds.ds_gtid), task_team); } |
3281 | "setting active to false, setting local and team's pointer to NULL\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d deactivating task_team %p: " "setting active to false, setting local and team's pointer to NULL\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3282)), (this_thr)->th.th_info.ds.ds_gtid), task_team); } |
3282 | __kmp_gtid_from_thread(this_thr), task_team))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_team_wait: Master T#%d deactivating task_team %p: " "setting active to false, setting local and team's pointer to NULL\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3282)), (this_thr)->th.th_info.ds.ds_gtid), task_team); }; |
3283 | #if OMP_45_ENABLED(50 >= 45) |
3284 | KMP_DEBUG_ASSERT(task_team->tt.tt_nproc > 1 ||((task_team->tt.tt_nproc > 1 || task_team->tt.tt_found_proxy_tasks == (!0)) ? 0 : __kmp_debug_assert("task_team->tt.tt_nproc > 1 || task_team->tt.tt_found_proxy_tasks == (!0)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3285)) |
3285 | task_team->tt.tt_found_proxy_tasks == TRUE)((task_team->tt.tt_nproc > 1 || task_team->tt.tt_found_proxy_tasks == (!0)) ? 0 : __kmp_debug_assert("task_team->tt.tt_nproc > 1 || task_team->tt.tt_found_proxy_tasks == (!0)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3285)); |
3286 | TCW_SYNC_4(task_team->tt.tt_found_proxy_tasks, FALSE)(task_team->tt.tt_found_proxy_tasks) = (0); |
3287 | #else |
3288 | KMP_DEBUG_ASSERT(task_team->tt.tt_nproc > 1)((task_team->tt.tt_nproc > 1) ? 0 : __kmp_debug_assert( "task_team->tt.tt_nproc > 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3288)); |
3289 | #endif |
3290 | KMP_CHECK_UPDATE(task_team->tt.tt_untied_task_encountered, 0)if ((task_team->tt.tt_untied_task_encountered) != (0)) (task_team ->tt.tt_untied_task_encountered) = (0); |
3291 | TCW_SYNC_4(task_team->tt.tt_active, FALSE)(task_team->tt.tt_active) = (0); |
3292 | KMP_MB(); |
3293 | |
3294 | TCW_PTR(this_thr->th.th_task_team, NULL)((this_thr->th.th_task_team)) = ((__null)); |
3295 | } |
3296 | } |
3297 | |
3298 | // __kmp_tasking_barrier: |
3299 | // This routine may only called when __kmp_tasking_mode == tskm_extra_barrier. |
3300 | // Internal function to execute all tasks prior to a regular barrier or a join |
3301 | // barrier. It is a full barrier itself, which unfortunately turns regular |
3302 | // barriers into double barriers and join barriers into 1 1/2 barriers. |
3303 | void __kmp_tasking_barrier(kmp_team_t *team, kmp_info_t *thread, int gtid) { |
3304 | std::atomic<kmp_uint32> *spin = RCAST(reinterpret_cast<std::atomic<kmp_uint32> *>(& team->t.t_task_team[thread->th.th_task_state]->tt.tt_unfinished_threads ) |
3305 | std::atomic<kmp_uint32> *,reinterpret_cast<std::atomic<kmp_uint32> *>(& team->t.t_task_team[thread->th.th_task_state]->tt.tt_unfinished_threads ) |
3306 | &team->t.t_task_team[thread->th.th_task_state]->tt.tt_unfinished_threads)reinterpret_cast<std::atomic<kmp_uint32> *>(& team->t.t_task_team[thread->th.th_task_state]->tt.tt_unfinished_threads ); |
3307 | int flag = FALSE0; |
3308 | KMP_DEBUG_ASSERT(__kmp_tasking_mode == tskm_extra_barrier)((__kmp_tasking_mode == tskm_extra_barrier) ? 0 : __kmp_debug_assert ("__kmp_tasking_mode == tskm_extra_barrier", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3308)); |
3309 | |
3310 | #if USE_ITT_BUILD1 |
3311 | KMP_FSYNC_SPIN_INIT(spin, NULL)int sync_iters = 0; if (__kmp_itt_fsync_prepare_ptr__3_0) { if (spin == __null) { spin = __null; } } __asm__ __volatile__("movl %0, %%ebx; .byte 0x64, 0x67, 0x90 " ::"i"(0x4376) : "%ebx"); |
3312 | #endif /* USE_ITT_BUILD */ |
3313 | kmp_flag_32 spin_flag(spin, 0U); |
3314 | while (!spin_flag.execute_tasks(thread, gtid, TRUE(!0), |
3315 | &flag USE_ITT_BUILD_ARG(NULL), __null, 0)) { |
3316 | #if USE_ITT_BUILD1 |
3317 | // TODO: What about itt_sync_obj?? |
3318 | KMP_FSYNC_SPIN_PREPARE(RCAST(void *, spin))do { if (__kmp_itt_fsync_prepare_ptr__3_0 && sync_iters < __kmp_itt_prepare_delay) { ++sync_iters; if (sync_iters >= __kmp_itt_prepare_delay) { (!__kmp_itt_fsync_prepare_ptr__3_0 ) ? (void)0 : __kmp_itt_fsync_prepare_ptr__3_0((void *)((void *)reinterpret_cast<void *>(spin))); } } } while (0); |
3319 | #endif /* USE_ITT_BUILD */ |
3320 | |
3321 | if (TCR_4(__kmp_global.g.g_done)(__kmp_global.g.g_done)) { |
3322 | if (__kmp_global.g.g_abort) |
3323 | __kmp_abort_thread(); |
3324 | break; |
3325 | } |
3326 | KMP_YIELD(TRUE){ __kmp_x86_pause(); __kmp_yield(((!0))); }; // GH: We always yield here |
3327 | } |
3328 | #if USE_ITT_BUILD1 |
3329 | KMP_FSYNC_SPIN_ACQUIRED(RCAST(void *, spin))do { __asm__ __volatile__("movl %0, %%ebx; .byte 0x64, 0x67, 0x90 " ::"i"(0x4377) : "%ebx"); if (sync_iters >= __kmp_itt_prepare_delay ) { (!__kmp_itt_fsync_acquired_ptr__3_0) ? (void)0 : __kmp_itt_fsync_acquired_ptr__3_0 ((void *)((void *)reinterpret_cast<void *>(spin))); } } while (0); |
3330 | #endif /* USE_ITT_BUILD */ |
3331 | } |
3332 | |
3333 | #if OMP_45_ENABLED(50 >= 45) |
3334 | |
3335 | // __kmp_give_task puts a task into a given thread queue if: |
3336 | // - the queue for that thread was created |
3337 | // - there's space in that queue |
3338 | // Because of this, __kmp_push_task needs to check if there's space after |
3339 | // getting the lock |
3340 | static bool __kmp_give_task(kmp_info_t *thread, kmp_int32 tid, kmp_task_t *task, |
3341 | kmp_int32 pass) { |
3342 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
3343 | kmp_task_team_t *task_team = taskdata->td_task_team; |
3344 | |
3345 | KA_TRACE(20, ("__kmp_give_task: trying to give task %p to thread %d.\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_give_task: trying to give task %p to thread %d.\n" , taskdata, tid); } |
3346 | taskdata, tid))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_give_task: trying to give task %p to thread %d.\n" , taskdata, tid); }; |
3347 | |
3348 | // If task_team is NULL something went really bad... |
3349 | KMP_DEBUG_ASSERT(task_team != NULL)((task_team != __null) ? 0 : __kmp_debug_assert("task_team != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3349)); |
3350 | |
3351 | bool result = false; |
3352 | kmp_thread_data_t *thread_data = &task_team->tt.tt_threads_data[tid]; |
3353 | |
3354 | if (thread_data->td.td_deque == NULL__null) { |
3355 | // There's no queue in this thread, go find another one |
3356 | // We're guaranteed that at least one thread has a queue |
3357 | KA_TRACE(30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: thread %d has no queue while giving task %p.\n" , tid, taskdata); } |
3358 | ("__kmp_give_task: thread %d has no queue while giving task %p.\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: thread %d has no queue while giving task %p.\n" , tid, taskdata); } |
3359 | tid, taskdata))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: thread %d has no queue while giving task %p.\n" , tid, taskdata); }; |
3360 | return result; |
3361 | } |
3362 | |
3363 | if (TCR_4(thread_data->td.td_deque_ntasks)(thread_data->td.td_deque_ntasks) >= |
3364 | TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size)) { |
3365 | KA_TRACE(if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to thread %d.\n" , taskdata, tid); } |
3366 | 30,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to thread %d.\n" , taskdata, tid); } |
3367 | ("__kmp_give_task: queue is full while giving task %p to thread %d.\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to thread %d.\n" , taskdata, tid); } |
3368 | taskdata, tid))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to thread %d.\n" , taskdata, tid); }; |
3369 | |
3370 | // if this deque is bigger than the pass ratio give a chance to another |
3371 | // thread |
3372 | if (TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size) / INITIAL_TASK_DEQUE_SIZE(1 << 8) >= pass) |
3373 | return result; |
3374 | |
3375 | __kmp_acquire_bootstrap_lock(&thread_data->td.td_deque_lock); |
3376 | __kmp_realloc_task_deque(thread, thread_data); |
3377 | |
3378 | } else { |
3379 | |
3380 | __kmp_acquire_bootstrap_lock(&thread_data->td.td_deque_lock); |
3381 | |
3382 | if (TCR_4(thread_data->td.td_deque_ntasks)(thread_data->td.td_deque_ntasks) >= |
3383 | TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size)) { |
3384 | KA_TRACE(30, ("__kmp_give_task: queue is full while giving task %p to "if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to " "thread %d.\n", taskdata, tid); } |
3385 | "thread %d.\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to " "thread %d.\n", taskdata, tid); } |
3386 | taskdata, tid))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: queue is full while giving task %p to " "thread %d.\n", taskdata, tid); }; |
3387 | |
3388 | // if this deque is bigger than the pass ratio give a chance to another |
3389 | // thread |
3390 | if (TASK_DEQUE_SIZE(thread_data->td)((thread_data->td).td_deque_size) / INITIAL_TASK_DEQUE_SIZE(1 << 8) >= pass) |
3391 | goto release_and_exit; |
3392 | |
3393 | __kmp_realloc_task_deque(thread, thread_data); |
3394 | } |
3395 | } |
3396 | |
3397 | // lock is held here, and there is space in the deque |
3398 | |
3399 | thread_data->td.td_deque[thread_data->td.td_deque_tail] = taskdata; |
3400 | // Wrap index. |
3401 | thread_data->td.td_deque_tail = |
3402 | (thread_data->td.td_deque_tail + 1) & TASK_DEQUE_MASK(thread_data->td)((thread_data->td).td_deque_size - 1); |
3403 | TCW_4(thread_data->td.td_deque_ntasks,(thread_data->td.td_deque_ntasks) = ((thread_data->td.td_deque_ntasks ) + 1) |
3404 | TCR_4(thread_data->td.td_deque_ntasks) + 1)(thread_data->td.td_deque_ntasks) = ((thread_data->td.td_deque_ntasks ) + 1); |
3405 | |
3406 | result = true; |
3407 | KA_TRACE(30, ("__kmp_give_task: successfully gave task %p to thread %d.\n",if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: successfully gave task %p to thread %d.\n" , taskdata, tid); } |
3408 | taskdata, tid))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_give_task: successfully gave task %p to thread %d.\n" , taskdata, tid); }; |
3409 | |
3410 | release_and_exit: |
3411 | __kmp_release_bootstrap_lock(&thread_data->td.td_deque_lock); |
3412 | |
3413 | return result; |
3414 | } |
3415 | |
3416 | /* The finish of the proxy tasks is divided in two pieces: |
3417 | - the top half is the one that can be done from a thread outside the team |
3418 | - the bottom half must be run from a them within the team |
3419 | |
3420 | In order to run the bottom half the task gets queued back into one of the |
3421 | threads of the team. Once the td_incomplete_child_task counter of the parent |
3422 | is decremented the threads can leave the barriers. So, the bottom half needs |
3423 | to be queued before the counter is decremented. The top half is therefore |
3424 | divided in two parts: |
3425 | - things that can be run before queuing the bottom half |
3426 | - things that must be run after queuing the bottom half |
3427 | |
3428 | This creates a second race as the bottom half can free the task before the |
3429 | second top half is executed. To avoid this we use the |
3430 | td_incomplete_child_task of the proxy task to synchronize the top and bottom |
3431 | half. */ |
3432 | static void __kmp_first_top_half_finish_proxy(kmp_taskdata_t *taskdata) { |
3433 | KMP_DEBUG_ASSERT(taskdata->td_flags.tasktype == TASK_EXPLICIT)((taskdata->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3433)); |
3434 | KMP_DEBUG_ASSERT(taskdata->td_flags.proxy == TASK_PROXY)((taskdata->td_flags.proxy == 1) ? 0 : __kmp_debug_assert( "taskdata->td_flags.proxy == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3434)); |
3435 | KMP_DEBUG_ASSERT(taskdata->td_flags.complete == 0)((taskdata->td_flags.complete == 0) ? 0 : __kmp_debug_assert ("taskdata->td_flags.complete == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3435)); |
3436 | KMP_DEBUG_ASSERT(taskdata->td_flags.freed == 0)((taskdata->td_flags.freed == 0) ? 0 : __kmp_debug_assert( "taskdata->td_flags.freed == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3436)); |
3437 | |
3438 | taskdata->td_flags.complete = 1; // mark the task as completed |
3439 | |
3440 | if (taskdata->td_taskgroup) |
3441 | KMP_ATOMIC_DEC(&taskdata->td_taskgroup->count)(&taskdata->td_taskgroup->count)->fetch_sub(1, std ::memory_order_acq_rel); |
3442 | |
3443 | // Create an imaginary children for this task so the bottom half cannot |
3444 | // release the task before we have completed the second top half |
3445 | KMP_ATOMIC_INC(&taskdata->td_incomplete_child_tasks)(&taskdata->td_incomplete_child_tasks)->fetch_add(1 , std::memory_order_acq_rel); |
3446 | } |
3447 | |
3448 | static void __kmp_second_top_half_finish_proxy(kmp_taskdata_t *taskdata) { |
3449 | kmp_int32 children = 0; |
3450 | |
3451 | // Predecrement simulated by "- 1" calculation |
3452 | children = |
3453 | KMP_ATOMIC_DEC(&taskdata->td_parent->td_incomplete_child_tasks)(&taskdata->td_parent->td_incomplete_child_tasks)-> fetch_sub(1, std::memory_order_acq_rel) - 1; |
3454 | KMP_DEBUG_ASSERT(children >= 0)((children >= 0) ? 0 : __kmp_debug_assert("children >= 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3454)); |
3455 | |
3456 | // Remove the imaginary children |
3457 | KMP_ATOMIC_DEC(&taskdata->td_incomplete_child_tasks)(&taskdata->td_incomplete_child_tasks)->fetch_sub(1 , std::memory_order_acq_rel); |
3458 | } |
3459 | |
3460 | static void __kmp_bottom_half_finish_proxy(kmp_int32 gtid, kmp_task_t *ptask) { |
3461 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(ptask)(((kmp_taskdata_t *)ptask) - 1); |
3462 | kmp_info_t *thread = __kmp_threads[gtid]; |
3463 | |
3464 | KMP_DEBUG_ASSERT(taskdata->td_flags.proxy == TASK_PROXY)((taskdata->td_flags.proxy == 1) ? 0 : __kmp_debug_assert( "taskdata->td_flags.proxy == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3464)); |
3465 | KMP_DEBUG_ASSERT(taskdata->td_flags.complete ==((taskdata->td_flags.complete == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.complete == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3466)) |
3466 | 1)((taskdata->td_flags.complete == 1) ? 0 : __kmp_debug_assert ("taskdata->td_flags.complete == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3466)); // top half must run before bottom half |
3467 | |
3468 | // We need to wait to make sure the top half is finished |
3469 | // Spinning here should be ok as this should happen quickly |
3470 | while (KMP_ATOMIC_LD_ACQ(&taskdata->td_incomplete_child_tasks)(&taskdata->td_incomplete_child_tasks)->load(std::memory_order_acquire ) > 0) |
3471 | ; |
3472 | |
3473 | __kmp_release_deps(gtid, taskdata); |
3474 | __kmp_free_task_and_ancestors(gtid, taskdata, thread); |
3475 | } |
3476 | |
3477 | /*! |
3478 | @ingroup TASKING |
3479 | @param gtid Global Thread ID of encountering thread |
3480 | @param ptask Task which execution is completed |
3481 | |
3482 | Execute the completation of a proxy task from a thread of that is part of the |
3483 | team. Run first and bottom halves directly. |
3484 | */ |
3485 | void __kmpc_proxy_task_completed(kmp_int32 gtid, kmp_task_t *ptask) { |
3486 | KMP_DEBUG_ASSERT(ptask != NULL)((ptask != __null) ? 0 : __kmp_debug_assert("ptask != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3486)); |
3487 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(ptask)(((kmp_taskdata_t *)ptask) - 1); |
3488 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed(enter): T#%d proxy task %p completing\n" , gtid, taskdata); } |
3489 | 10, ("__kmp_proxy_task_completed(enter): T#%d proxy task %p completing\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed(enter): T#%d proxy task %p completing\n" , gtid, taskdata); } |
3490 | gtid, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed(enter): T#%d proxy task %p completing\n" , gtid, taskdata); }; |
3491 | |
3492 | KMP_DEBUG_ASSERT(taskdata->td_flags.proxy == TASK_PROXY)((taskdata->td_flags.proxy == 1) ? 0 : __kmp_debug_assert( "taskdata->td_flags.proxy == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3492)); |
3493 | |
3494 | __kmp_first_top_half_finish_proxy(taskdata); |
3495 | __kmp_second_top_half_finish_proxy(taskdata); |
3496 | __kmp_bottom_half_finish_proxy(gtid, ptask); |
3497 | |
3498 | KA_TRACE(10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed(exit): T#%d proxy task %p completing\n" , gtid, taskdata); } |
3499 | ("__kmp_proxy_task_completed(exit): T#%d proxy task %p completing\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed(exit): T#%d proxy task %p completing\n" , gtid, taskdata); } |
3500 | gtid, taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed(exit): T#%d proxy task %p completing\n" , gtid, taskdata); }; |
3501 | } |
3502 | |
3503 | /*! |
3504 | @ingroup TASKING |
3505 | @param ptask Task which execution is completed |
3506 | |
3507 | Execute the completation of a proxy task from a thread that could not belong to |
3508 | the team. |
3509 | */ |
3510 | void __kmpc_proxy_task_completed_ooo(kmp_task_t *ptask) { |
3511 | KMP_DEBUG_ASSERT(ptask != NULL)((ptask != __null) ? 0 : __kmp_debug_assert("ptask != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3511)); |
3512 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(ptask)(((kmp_taskdata_t *)ptask) - 1); |
3513 | |
3514 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(enter): proxy task completing ooo %p\n" , taskdata); } |
3515 | 10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(enter): proxy task completing ooo %p\n" , taskdata); } |
3516 | ("__kmp_proxy_task_completed_ooo(enter): proxy task completing ooo %p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(enter): proxy task completing ooo %p\n" , taskdata); } |
3517 | taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(enter): proxy task completing ooo %p\n" , taskdata); }; |
3518 | |
3519 | KMP_DEBUG_ASSERT(taskdata->td_flags.proxy == TASK_PROXY)((taskdata->td_flags.proxy == 1) ? 0 : __kmp_debug_assert( "taskdata->td_flags.proxy == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3519)); |
3520 | |
3521 | __kmp_first_top_half_finish_proxy(taskdata); |
3522 | |
3523 | // Enqueue task to complete bottom half completion from a thread within the |
3524 | // corresponding team |
3525 | kmp_team_t *team = taskdata->td_team; |
3526 | kmp_int32 nthreads = team->t.t_nproc; |
3527 | kmp_info_t *thread; |
3528 | |
3529 | // This should be similar to start_k = __kmp_get_random( thread ) % nthreads |
3530 | // but we cannot use __kmp_get_random here |
3531 | kmp_int32 start_k = 0; |
3532 | kmp_int32 pass = 1; |
3533 | kmp_int32 k = start_k; |
3534 | |
3535 | do { |
3536 | // For now we're just linearly trying to find a thread |
3537 | thread = team->t.t_threads[k]; |
3538 | k = (k + 1) % nthreads; |
3539 | |
3540 | // we did a full pass through all the threads |
3541 | if (k == start_k) |
3542 | pass = pass << 1; |
3543 | |
3544 | } while (!__kmp_give_task(thread, k, ptask, pass)); |
3545 | |
3546 | __kmp_second_top_half_finish_proxy(taskdata); |
3547 | |
3548 | KA_TRACE(if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(exit): proxy task completing ooo %p\n" , taskdata); } |
3549 | 10,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(exit): proxy task completing ooo %p\n" , taskdata); } |
3550 | ("__kmp_proxy_task_completed_ooo(exit): proxy task completing ooo %p\n",if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(exit): proxy task completing ooo %p\n" , taskdata); } |
3551 | taskdata))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_proxy_task_completed_ooo(exit): proxy task completing ooo %p\n" , taskdata); }; |
3552 | } |
3553 | |
3554 | // __kmp_task_dup_alloc: Allocate the taskdata and make a copy of source task |
3555 | // for taskloop |
3556 | // |
3557 | // thread: allocating thread |
3558 | // task_src: pointer to source task to be duplicated |
3559 | // returns: a pointer to the allocated kmp_task_t structure (task). |
3560 | kmp_task_t *__kmp_task_dup_alloc(kmp_info_t *thread, kmp_task_t *task_src) { |
3561 | kmp_task_t *task; |
3562 | kmp_taskdata_t *taskdata; |
3563 | kmp_taskdata_t *taskdata_src; |
3564 | kmp_taskdata_t *parent_task = thread->th.th_current_task; |
3565 | size_t shareds_offset; |
3566 | size_t task_size; |
3567 | |
3568 | KA_TRACE(10, ("__kmp_task_dup_alloc(enter): Th %p, source task %p\n", thread,if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_dup_alloc(enter): Th %p, source task %p\n" , thread, task_src); } |
3569 | task_src))if (kmp_a_debug >= 10) { __kmp_debug_printf ("__kmp_task_dup_alloc(enter): Th %p, source task %p\n" , thread, task_src); }; |
3570 | taskdata_src = KMP_TASK_TO_TASKDATA(task_src)(((kmp_taskdata_t *)task_src) - 1); |
3571 | KMP_DEBUG_ASSERT(taskdata_src->td_flags.proxy ==((taskdata_src->td_flags.proxy == 0) ? 0 : __kmp_debug_assert ("taskdata_src->td_flags.proxy == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3572)) |
3572 | TASK_FULL)((taskdata_src->td_flags.proxy == 0) ? 0 : __kmp_debug_assert ("taskdata_src->td_flags.proxy == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3572)); // it should not be proxy task |
3573 | KMP_DEBUG_ASSERT(taskdata_src->td_flags.tasktype == TASK_EXPLICIT)((taskdata_src->td_flags.tasktype == 1) ? 0 : __kmp_debug_assert ("taskdata_src->td_flags.tasktype == 1", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3573)); |
3574 | task_size = taskdata_src->td_size_alloc; |
3575 | |
3576 | // Allocate a kmp_taskdata_t block and a kmp_task_t block. |
3577 | KA_TRACE(30, ("__kmp_task_dup_alloc: Th %p, malloc size %ld\n", thread,if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_task_dup_alloc: Th %p, malloc size %ld\n" , thread, task_size); } |
3578 | task_size))if (kmp_a_debug >= 30) { __kmp_debug_printf ("__kmp_task_dup_alloc: Th %p, malloc size %ld\n" , thread, task_size); }; |
3579 | #if USE_FAST_MEMORY3 |
3580 | taskdata = (kmp_taskdata_t *)__kmp_fast_allocate(thread, task_size)___kmp_fast_allocate((thread), (task_size), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3580); |
3581 | #else |
3582 | taskdata = (kmp_taskdata_t *)__kmp_thread_malloc(thread, task_size)___kmp_thread_malloc((thread), (task_size), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3582); |
3583 | #endif /* USE_FAST_MEMORY */ |
3584 | KMP_MEMCPYmemcpy(taskdata, taskdata_src, task_size); |
3585 | |
3586 | task = KMP_TASKDATA_TO_TASK(taskdata)(kmp_task_t *)(taskdata + 1); |
3587 | |
3588 | // Initialize new task (only specific fields not affected by memcpy) |
3589 | taskdata->td_task_id = KMP_GEN_TASK_ID()(~0); |
3590 | if (task->shareds != NULL__null) { // need setup shareds pointer |
3591 | shareds_offset = (char *)task_src->shareds - (char *)taskdata_src; |
3592 | task->shareds = &((char *)taskdata)[shareds_offset]; |
3593 | KMP_DEBUG_ASSERT((((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1)) ==(((((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1 )) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3594)) |
3594 | 0)(((((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1 )) == 0) ? 0 : __kmp_debug_assert("(((kmp_uintptr_t)task->shareds) & (sizeof(void *) - 1)) == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3594)); |
3595 | } |
3596 | taskdata->td_alloc_thread = thread; |
3597 | taskdata->td_parent = parent_task; |
3598 | taskdata->td_taskgroup = |
3599 | parent_task |
3600 | ->td_taskgroup; // task inherits the taskgroup from the parent task |
3601 | |
3602 | // Only need to keep track of child task counts if team parallel and tasking |
3603 | // not serialized |
3604 | if (!(taskdata->td_flags.team_serial || taskdata->td_flags.tasking_ser)) { |
3605 | KMP_ATOMIC_INC(&parent_task->td_incomplete_child_tasks)(&parent_task->td_incomplete_child_tasks)->fetch_add (1, std::memory_order_acq_rel); |
3606 | if (parent_task->td_taskgroup) |
3607 | KMP_ATOMIC_INC(&parent_task->td_taskgroup->count)(&parent_task->td_taskgroup->count)->fetch_add(1 , std::memory_order_acq_rel); |
3608 | // Only need to keep track of allocated child tasks for explicit tasks since |
3609 | // implicit not deallocated |
3610 | if (taskdata->td_parent->td_flags.tasktype == TASK_EXPLICIT1) |
3611 | KMP_ATOMIC_INC(&taskdata->td_parent->td_allocated_child_tasks)(&taskdata->td_parent->td_allocated_child_tasks)-> fetch_add(1, std::memory_order_acq_rel); |
3612 | } |
3613 | |
3614 | KA_TRACE(20,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_dup_alloc(exit): Th %p, created task %p, parent=%p\n" , thread, taskdata, taskdata->td_parent); } |
3615 | ("__kmp_task_dup_alloc(exit): Th %p, created task %p, parent=%p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_dup_alloc(exit): Th %p, created task %p, parent=%p\n" , thread, taskdata, taskdata->td_parent); } |
3616 | thread, taskdata, taskdata->td_parent))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_task_dup_alloc(exit): Th %p, created task %p, parent=%p\n" , thread, taskdata, taskdata->td_parent); }; |
3617 | #if OMPT_SUPPORT1 |
3618 | if (UNLIKELY(ompt_enabled.enabled)__builtin_expect(!!(ompt_enabled.enabled), 0)) |
3619 | __ompt_task_init(taskdata, thread->th.th_info.ds.ds_gtid); |
3620 | #endif |
3621 | return task; |
3622 | } |
3623 | |
3624 | // Routine optionally generated by the compiler for setting the lastprivate flag |
3625 | // and calling needed constructors for private/firstprivate objects |
3626 | // (used to form taskloop tasks from pattern task) |
3627 | // Parameters: dest task, src task, lastprivate flag. |
3628 | typedef void (*p_task_dup_t)(kmp_task_t *, kmp_task_t *, kmp_int32); |
3629 | |
3630 | KMP_BUILD_ASSERT(sizeof(long) == 4 || sizeof(long) == 8)static_assert(sizeof(long) == 4 || sizeof(long) == 8, "Build condition error" ); |
3631 | |
3632 | // class to encapsulate manipulating loop bounds in a taskloop task. |
3633 | // this abstracts away the Intel vs GOMP taskloop interface for setting/getting |
3634 | // the loop bound variables. |
3635 | class kmp_taskloop_bounds_t { |
3636 | kmp_task_t *task; |
3637 | const kmp_taskdata_t *taskdata; |
3638 | size_t lower_offset; |
3639 | size_t upper_offset; |
3640 | |
3641 | public: |
3642 | kmp_taskloop_bounds_t(kmp_task_t *_task, kmp_uint64 *lb, kmp_uint64 *ub) |
3643 | : task(_task), taskdata(KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1)), |
3644 | lower_offset((char *)lb - (char *)task), |
3645 | upper_offset((char *)ub - (char *)task) { |
3646 | KMP_DEBUG_ASSERT((char *)lb > (char *)_task)(((char *)lb > (char *)_task) ? 0 : __kmp_debug_assert("(char *)lb > (char *)_task" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3646)); |
3647 | KMP_DEBUG_ASSERT((char *)ub > (char *)_task)(((char *)ub > (char *)_task) ? 0 : __kmp_debug_assert("(char *)ub > (char *)_task" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3647)); |
3648 | } |
3649 | kmp_taskloop_bounds_t(kmp_task_t *_task, const kmp_taskloop_bounds_t &bounds) |
3650 | : task(_task), taskdata(KMP_TASK_TO_TASKDATA(_task)(((kmp_taskdata_t *)_task) - 1)), |
3651 | lower_offset(bounds.lower_offset), upper_offset(bounds.upper_offset) {} |
3652 | size_t get_lower_offset() const { return lower_offset; } |
3653 | size_t get_upper_offset() const { return upper_offset; } |
3654 | kmp_uint64 get_lb() const { |
3655 | kmp_int64 retval; |
3656 | #if defined(KMP_GOMP_COMPAT) |
3657 | // Intel task just returns the lower bound normally |
3658 | if (!taskdata->td_flags.native) { |
3659 | retval = *(kmp_int64 *)((char *)task + lower_offset); |
3660 | } else { |
3661 | // GOMP task has to take into account the sizeof(long) |
3662 | if (taskdata->td_size_loop_bounds == 4) { |
3663 | kmp_int32 *lb = RCAST(kmp_int32 *, task->shareds)reinterpret_cast<kmp_int32 *>(task->shareds); |
3664 | retval = (kmp_int64)*lb; |
3665 | } else { |
3666 | kmp_int64 *lb = RCAST(kmp_int64 *, task->shareds)reinterpret_cast<kmp_int64 *>(task->shareds); |
3667 | retval = (kmp_int64)*lb; |
3668 | } |
3669 | } |
3670 | #else |
3671 | retval = *(kmp_int64 *)((char *)task + lower_offset); |
3672 | #endif // defined(KMP_GOMP_COMPAT) |
3673 | return retval; |
3674 | } |
3675 | kmp_uint64 get_ub() const { |
3676 | kmp_int64 retval; |
3677 | #if defined(KMP_GOMP_COMPAT) |
3678 | // Intel task just returns the upper bound normally |
3679 | if (!taskdata->td_flags.native) { |
3680 | retval = *(kmp_int64 *)((char *)task + upper_offset); |
3681 | } else { |
3682 | // GOMP task has to take into account the sizeof(long) |
3683 | if (taskdata->td_size_loop_bounds == 4) { |
3684 | kmp_int32 *ub = RCAST(kmp_int32 *, task->shareds)reinterpret_cast<kmp_int32 *>(task->shareds) + 1; |
3685 | retval = (kmp_int64)*ub; |
3686 | } else { |
3687 | kmp_int64 *ub = RCAST(kmp_int64 *, task->shareds)reinterpret_cast<kmp_int64 *>(task->shareds) + 1; |
3688 | retval = (kmp_int64)*ub; |
3689 | } |
3690 | } |
3691 | #else |
3692 | retval = *(kmp_int64 *)((char *)task + upper_offset); |
3693 | #endif // defined(KMP_GOMP_COMPAT) |
3694 | return retval; |
3695 | } |
3696 | void set_lb(kmp_uint64 lb) { |
3697 | #if defined(KMP_GOMP_COMPAT) |
3698 | // Intel task just sets the lower bound normally |
3699 | if (!taskdata->td_flags.native) { |
3700 | *(kmp_uint64 *)((char *)task + lower_offset) = lb; |
3701 | } else { |
3702 | // GOMP task has to take into account the sizeof(long) |
3703 | if (taskdata->td_size_loop_bounds == 4) { |
3704 | kmp_uint32 *lower = RCAST(kmp_uint32 *, task->shareds)reinterpret_cast<kmp_uint32 *>(task->shareds); |
3705 | *lower = (kmp_uint32)lb; |
3706 | } else { |
3707 | kmp_uint64 *lower = RCAST(kmp_uint64 *, task->shareds)reinterpret_cast<kmp_uint64 *>(task->shareds); |
3708 | *lower = (kmp_uint64)lb; |
3709 | } |
3710 | } |
3711 | #else |
3712 | *(kmp_uint64 *)((char *)task + lower_offset) = lb; |
3713 | #endif // defined(KMP_GOMP_COMPAT) |
3714 | } |
3715 | void set_ub(kmp_uint64 ub) { |
3716 | #if defined(KMP_GOMP_COMPAT) |
3717 | // Intel task just sets the upper bound normally |
3718 | if (!taskdata->td_flags.native) { |
3719 | *(kmp_uint64 *)((char *)task + upper_offset) = ub; |
3720 | } else { |
3721 | // GOMP task has to take into account the sizeof(long) |
3722 | if (taskdata->td_size_loop_bounds == 4) { |
3723 | kmp_uint32 *upper = RCAST(kmp_uint32 *, task->shareds)reinterpret_cast<kmp_uint32 *>(task->shareds) + 1; |
3724 | *upper = (kmp_uint32)ub; |
3725 | } else { |
3726 | kmp_uint64 *upper = RCAST(kmp_uint64 *, task->shareds)reinterpret_cast<kmp_uint64 *>(task->shareds) + 1; |
3727 | *upper = (kmp_uint64)ub; |
3728 | } |
3729 | } |
3730 | #else |
3731 | *(kmp_uint64 *)((char *)task + upper_offset) = ub; |
3732 | #endif // defined(KMP_GOMP_COMPAT) |
3733 | } |
3734 | }; |
3735 | |
3736 | // __kmp_taskloop_linear: Start tasks of the taskloop linearly |
3737 | // |
3738 | // loc Source location information |
3739 | // gtid Global thread ID |
3740 | // task Pattern task, exposes the loop iteration range |
3741 | // lb Pointer to loop lower bound in task structure |
3742 | // ub Pointer to loop upper bound in task structure |
3743 | // st Loop stride |
3744 | // ub_glob Global upper bound (used for lastprivate check) |
3745 | // num_tasks Number of tasks to execute |
3746 | // grainsize Number of loop iterations per task |
3747 | // extras Number of chunks with grainsize+1 iterations |
3748 | // tc Iterations count |
3749 | // task_dup Tasks duplication routine |
3750 | // codeptr_ra Return address for OMPT events |
3751 | void __kmp_taskloop_linear(ident_t *loc, int gtid, kmp_task_t *task, |
3752 | kmp_uint64 *lb, kmp_uint64 *ub, kmp_int64 st, |
3753 | kmp_uint64 ub_glob, kmp_uint64 num_tasks, |
3754 | kmp_uint64 grainsize, kmp_uint64 extras, |
3755 | kmp_uint64 tc, |
3756 | #if OMPT_SUPPORT1 |
3757 | void *codeptr_ra, |
3758 | #endif |
3759 | void *task_dup) { |
3760 | KMP_COUNT_BLOCK(OMP_TASKLOOP)((void)0); |
3761 | KMP_TIME_PARTITIONED_BLOCK(OMP_taskloop_scheduling)((void)0); |
3762 | p_task_dup_t ptask_dup = (p_task_dup_t)task_dup; |
3763 | // compiler provides global bounds here |
3764 | kmp_taskloop_bounds_t task_bounds(task, lb, ub); |
3765 | kmp_uint64 lower = task_bounds.get_lb(); |
3766 | kmp_uint64 upper = task_bounds.get_ub(); |
3767 | kmp_uint64 i; |
3768 | kmp_info_t *thread = __kmp_threads[gtid]; |
3769 | kmp_taskdata_t *current_task = thread->th.th_current_task; |
3770 | kmp_task_t *next_task; |
3771 | kmp_int32 lastpriv = 0; |
3772 | |
3773 | KMP_DEBUG_ASSERT(tc == num_tasks * grainsize + extras)((tc == num_tasks * grainsize + extras) ? 0 : __kmp_debug_assert ("tc == num_tasks * grainsize + extras", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3773)); |
3774 | KMP_DEBUG_ASSERT(num_tasks > extras)((num_tasks > extras) ? 0 : __kmp_debug_assert("num_tasks > extras" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3774)); |
3775 | KMP_DEBUG_ASSERT(num_tasks > 0)((num_tasks > 0) ? 0 : __kmp_debug_assert("num_tasks > 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3775)); |
3776 | KA_TRACE(20, ("__kmp_taskloop_linear: T#%d: %lld tasks, grainsize %lld, "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d: %lld tasks, grainsize %lld, " "extras %lld, i=%lld,%lld(%d)%lld, dup %p\n", gtid, num_tasks , grainsize, extras, lower, upper, ub_glob, st, task_dup); } |
3777 | "extras %lld, i=%lld,%lld(%d)%lld, dup %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d: %lld tasks, grainsize %lld, " "extras %lld, i=%lld,%lld(%d)%lld, dup %p\n", gtid, num_tasks , grainsize, extras, lower, upper, ub_glob, st, task_dup); } |
3778 | gtid, num_tasks, grainsize, extras, lower, upper, ub_glob, st,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d: %lld tasks, grainsize %lld, " "extras %lld, i=%lld,%lld(%d)%lld, dup %p\n", gtid, num_tasks , grainsize, extras, lower, upper, ub_glob, st, task_dup); } |
3779 | task_dup))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d: %lld tasks, grainsize %lld, " "extras %lld, i=%lld,%lld(%d)%lld, dup %p\n", gtid, num_tasks , grainsize, extras, lower, upper, ub_glob, st, task_dup); }; |
3780 | |
3781 | // Launch num_tasks tasks, assign grainsize iterations each task |
3782 | for (i = 0; i < num_tasks; ++i) { |
3783 | kmp_uint64 chunk_minus_1; |
3784 | if (extras == 0) { |
3785 | chunk_minus_1 = grainsize - 1; |
3786 | } else { |
3787 | chunk_minus_1 = grainsize; |
3788 | --extras; // first extras iterations get bigger chunk (grainsize+1) |
3789 | } |
3790 | upper = lower + st * chunk_minus_1; |
3791 | if (i == num_tasks - 1) { |
3792 | // schedule the last task, set lastprivate flag if needed |
3793 | if (st == 1) { // most common case |
3794 | KMP_DEBUG_ASSERT(upper == *ub)((upper == *ub) ? 0 : __kmp_debug_assert("upper == *ub", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3794)); |
3795 | if (upper == ub_glob) |
3796 | lastpriv = 1; |
3797 | } else if (st > 0) { // positive loop stride |
3798 | KMP_DEBUG_ASSERT((kmp_uint64)st > *ub - upper)(((kmp_uint64)st > *ub - upper) ? 0 : __kmp_debug_assert("(kmp_uint64)st > *ub - upper" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3798)); |
3799 | if ((kmp_uint64)st > ub_glob - upper) |
3800 | lastpriv = 1; |
3801 | } else { // negative loop stride |
3802 | KMP_DEBUG_ASSERT(upper + st < *ub)((upper + st < *ub) ? 0 : __kmp_debug_assert("upper + st < *ub" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3802)); |
3803 | if (upper - ub_glob < (kmp_uint64)(-st)) |
3804 | lastpriv = 1; |
3805 | } |
3806 | } |
3807 | next_task = __kmp_task_dup_alloc(thread, task); // allocate new task |
3808 | kmp_taskdata_t *next_taskdata = KMP_TASK_TO_TASKDATA(next_task)(((kmp_taskdata_t *)next_task) - 1); |
3809 | kmp_taskloop_bounds_t next_task_bounds = |
3810 | kmp_taskloop_bounds_t(next_task, task_bounds); |
3811 | |
3812 | // adjust task-specific bounds |
3813 | next_task_bounds.set_lb(lower); |
3814 | if (next_taskdata->td_flags.native) { |
3815 | next_task_bounds.set_ub(upper + (st > 0 ? 1 : -1)); |
3816 | } else { |
3817 | next_task_bounds.set_ub(upper); |
3818 | } |
3819 | if (ptask_dup != NULL__null) // set lastprivate flag, construct fistprivates, etc. |
3820 | ptask_dup(next_task, task, lastpriv); |
3821 | KA_TRACE(40,if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, " "upper %lld stride %lld, (offsets %p %p)\n", gtid, i, next_task , lower, upper, st, next_task_bounds.get_lower_offset(), next_task_bounds .get_upper_offset()); } |
3822 | ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, "if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, " "upper %lld stride %lld, (offsets %p %p)\n", gtid, i, next_task , lower, upper, st, next_task_bounds.get_lower_offset(), next_task_bounds .get_upper_offset()); } |
3823 | "upper %lld stride %lld, (offsets %p %p)\n",if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, " "upper %lld stride %lld, (offsets %p %p)\n", gtid, i, next_task , lower, upper, st, next_task_bounds.get_lower_offset(), next_task_bounds .get_upper_offset()); } |
3824 | gtid, i, next_task, lower, upper, st,if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, " "upper %lld stride %lld, (offsets %p %p)\n", gtid, i, next_task , lower, upper, st, next_task_bounds.get_lower_offset(), next_task_bounds .get_upper_offset()); } |
3825 | next_task_bounds.get_lower_offset(),if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, " "upper %lld stride %lld, (offsets %p %p)\n", gtid, i, next_task , lower, upper, st, next_task_bounds.get_lower_offset(), next_task_bounds .get_upper_offset()); } |
3826 | next_task_bounds.get_upper_offset()))if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_linear: T#%d; task #%llu: task %p: lower %lld, " "upper %lld stride %lld, (offsets %p %p)\n", gtid, i, next_task , lower, upper, st, next_task_bounds.get_lower_offset(), next_task_bounds .get_upper_offset()); }; |
3827 | #if OMPT_SUPPORT1 |
3828 | __kmp_omp_taskloop_task(NULL__null, gtid, next_task, |
3829 | codeptr_ra); // schedule new task |
3830 | #else |
3831 | __kmp_omp_task(gtid, next_task, true); // schedule new task |
3832 | #endif |
3833 | lower = upper + st; // adjust lower bound for the next iteration |
3834 | } |
3835 | // free the pattern task and exit |
3836 | __kmp_task_start(gtid, task, current_task); // make internal bookkeeping |
3837 | // do not execute the pattern task, just do internal bookkeeping |
3838 | __kmp_task_finish<false>(gtid, task, current_task); |
3839 | } |
3840 | |
3841 | // Structure to keep taskloop parameters for auxiliary task |
3842 | // kept in the shareds of the task structure. |
3843 | typedef struct __taskloop_params { |
3844 | kmp_task_t *task; |
3845 | kmp_uint64 *lb; |
3846 | kmp_uint64 *ub; |
3847 | void *task_dup; |
3848 | kmp_int64 st; |
3849 | kmp_uint64 ub_glob; |
3850 | kmp_uint64 num_tasks; |
3851 | kmp_uint64 grainsize; |
3852 | kmp_uint64 extras; |
3853 | kmp_uint64 tc; |
3854 | kmp_uint64 num_t_min; |
3855 | #if OMPT_SUPPORT1 |
3856 | void *codeptr_ra; |
3857 | #endif |
3858 | } __taskloop_params_t; |
3859 | |
3860 | void __kmp_taskloop_recur(ident_t *, int, kmp_task_t *, kmp_uint64 *, |
3861 | kmp_uint64 *, kmp_int64, kmp_uint64, kmp_uint64, |
3862 | kmp_uint64, kmp_uint64, kmp_uint64, kmp_uint64, |
3863 | #if OMPT_SUPPORT1 |
3864 | void *, |
3865 | #endif |
3866 | void *); |
3867 | |
3868 | // Execute part of the the taskloop submitted as a task. |
3869 | int __kmp_taskloop_task(int gtid, void *ptask) { |
3870 | __taskloop_params_t *p = |
3871 | (__taskloop_params_t *)((kmp_task_t *)ptask)->shareds; |
3872 | kmp_task_t *task = p->task; |
3873 | kmp_uint64 *lb = p->lb; |
3874 | kmp_uint64 *ub = p->ub; |
3875 | void *task_dup = p->task_dup; |
3876 | // p_task_dup_t ptask_dup = (p_task_dup_t)task_dup; |
3877 | kmp_int64 st = p->st; |
3878 | kmp_uint64 ub_glob = p->ub_glob; |
3879 | kmp_uint64 num_tasks = p->num_tasks; |
3880 | kmp_uint64 grainsize = p->grainsize; |
3881 | kmp_uint64 extras = p->extras; |
3882 | kmp_uint64 tc = p->tc; |
3883 | kmp_uint64 num_t_min = p->num_t_min; |
3884 | #if OMPT_SUPPORT1 |
3885 | void *codeptr_ra = p->codeptr_ra; |
3886 | #endif |
3887 | #if KMP_DEBUG1 |
3888 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
3889 | KMP_DEBUG_ASSERT(task != NULL)((task != __null) ? 0 : __kmp_debug_assert("task != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3889)); |
3890 | KA_TRACE(20, ("__kmp_taskloop_task: T#%d, task %p: %lld tasks, grainsize"if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_task: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); } |
3891 | " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_task: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); } |
3892 | gtid, taskdata, num_tasks, grainsize, extras, *lb, *ub, st,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_task: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); } |
3893 | task_dup))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_task: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); }; |
3894 | #endif |
3895 | KMP_DEBUG_ASSERT(num_tasks * 2 + 1 > num_t_min)((num_tasks * 2 + 1 > num_t_min) ? 0 : __kmp_debug_assert( "num_tasks * 2 + 1 > num_t_min", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3895)); |
3896 | if (num_tasks > num_t_min) |
3897 | __kmp_taskloop_recur(NULL__null, gtid, task, lb, ub, st, ub_glob, num_tasks, |
3898 | grainsize, extras, tc, num_t_min, |
3899 | #if OMPT_SUPPORT1 |
3900 | codeptr_ra, |
3901 | #endif |
3902 | task_dup); |
3903 | else |
3904 | __kmp_taskloop_linear(NULL__null, gtid, task, lb, ub, st, ub_glob, num_tasks, |
3905 | grainsize, extras, tc, |
3906 | #if OMPT_SUPPORT1 |
3907 | codeptr_ra, |
3908 | #endif |
3909 | task_dup); |
3910 | |
3911 | KA_TRACE(40, ("__kmp_taskloop_task(exit): T#%d\n", gtid))if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmp_taskloop_task(exit): T#%d\n" , gtid); }; |
3912 | return 0; |
3913 | } |
3914 | |
3915 | // Schedule part of the the taskloop as a task, |
3916 | // execute the rest of the the taskloop. |
3917 | // |
3918 | // loc Source location information |
3919 | // gtid Global thread ID |
3920 | // task Pattern task, exposes the loop iteration range |
3921 | // lb Pointer to loop lower bound in task structure |
3922 | // ub Pointer to loop upper bound in task structure |
3923 | // st Loop stride |
3924 | // ub_glob Global upper bound (used for lastprivate check) |
3925 | // num_tasks Number of tasks to execute |
3926 | // grainsize Number of loop iterations per task |
3927 | // extras Number of chunks with grainsize+1 iterations |
3928 | // tc Iterations count |
3929 | // num_t_min Threashold to launch tasks recursively |
3930 | // task_dup Tasks duplication routine |
3931 | // codeptr_ra Return address for OMPT events |
3932 | void __kmp_taskloop_recur(ident_t *loc, int gtid, kmp_task_t *task, |
3933 | kmp_uint64 *lb, kmp_uint64 *ub, kmp_int64 st, |
3934 | kmp_uint64 ub_glob, kmp_uint64 num_tasks, |
3935 | kmp_uint64 grainsize, kmp_uint64 extras, |
3936 | kmp_uint64 tc, kmp_uint64 num_t_min, |
3937 | #if OMPT_SUPPORT1 |
3938 | void *codeptr_ra, |
3939 | #endif |
3940 | void *task_dup) { |
3941 | #if KMP_DEBUG1 |
3942 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
3943 | KMP_DEBUG_ASSERT(task != NULL)((task != __null) ? 0 : __kmp_debug_assert("task != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3943)); |
3944 | KMP_DEBUG_ASSERT(num_tasks > num_t_min)((num_tasks > num_t_min) ? 0 : __kmp_debug_assert("num_tasks > num_t_min" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3944)); |
3945 | KA_TRACE(20, ("__kmp_taskloop_recur: T#%d, task %p: %lld tasks, grainsize"if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_recur: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); } |
3946 | " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_recur: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); } |
3947 | gtid, taskdata, num_tasks, grainsize, extras, *lb, *ub, st,if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_recur: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); } |
3948 | task_dup))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmp_taskloop_recur: T#%d, task %p: %lld tasks, grainsize" " %lld, extras %lld, i=%lld,%lld(%d), dup %p\n", gtid, taskdata , num_tasks, grainsize, extras, *lb, *ub, st, task_dup); }; |
3949 | #endif |
3950 | p_task_dup_t ptask_dup = (p_task_dup_t)task_dup; |
3951 | kmp_uint64 lower = *lb; |
3952 | kmp_uint64 upper = *ub; |
Value stored to 'upper' during its initialization is never read | |
3953 | kmp_info_t *thread = __kmp_threads[gtid]; |
3954 | // kmp_taskdata_t *current_task = thread->th.th_current_task; |
3955 | kmp_task_t *next_task; |
3956 | kmp_int32 lastpriv = 0; |
3957 | size_t lower_offset = |
3958 | (char *)lb - (char *)task; // remember offset of lb in the task structure |
3959 | size_t upper_offset = |
3960 | (char *)ub - (char *)task; // remember offset of ub in the task structure |
3961 | |
3962 | KMP_DEBUG_ASSERT(tc == num_tasks * grainsize + extras)((tc == num_tasks * grainsize + extras) ? 0 : __kmp_debug_assert ("tc == num_tasks * grainsize + extras", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3962)); |
3963 | KMP_DEBUG_ASSERT(num_tasks > extras)((num_tasks > extras) ? 0 : __kmp_debug_assert("num_tasks > extras" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3963)); |
3964 | KMP_DEBUG_ASSERT(num_tasks > 0)((num_tasks > 0) ? 0 : __kmp_debug_assert("num_tasks > 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 3964)); |
3965 | |
3966 | // split the loop in two halves |
3967 | kmp_uint64 lb1, ub0, tc0, tc1, ext0, ext1; |
3968 | kmp_uint64 gr_size0 = grainsize; |
3969 | kmp_uint64 n_tsk0 = num_tasks >> 1; // num_tasks/2 to execute |
3970 | kmp_uint64 n_tsk1 = num_tasks - n_tsk0; // to schedule as a task |
3971 | if (n_tsk0 <= extras) { |
3972 | gr_size0++; // integrate extras into grainsize |
3973 | ext0 = 0; // no extra iters in 1st half |
3974 | ext1 = extras - n_tsk0; // remaining extras |
3975 | tc0 = gr_size0 * n_tsk0; |
3976 | tc1 = tc - tc0; |
3977 | } else { // n_tsk0 > extras |
3978 | ext1 = 0; // no extra iters in 2nd half |
3979 | ext0 = extras; |
3980 | tc1 = grainsize * n_tsk1; |
3981 | tc0 = tc - tc1; |
3982 | } |
3983 | ub0 = lower + st * (tc0 - 1); |
3984 | lb1 = ub0 + st; |
3985 | |
3986 | // create pattern task for 2nd half of the loop |
3987 | next_task = __kmp_task_dup_alloc(thread, task); // duplicate the task |
3988 | // adjust lower bound (upper bound is not changed) for the 2nd half |
3989 | *(kmp_uint64 *)((char *)next_task + lower_offset) = lb1; |
3990 | if (ptask_dup != NULL__null) // construct fistprivates, etc. |
3991 | ptask_dup(next_task, task, 0); |
3992 | *ub = ub0; // adjust upper bound for the 1st half |
3993 | |
3994 | // create auxiliary task for 2nd half of the loop |
3995 | kmp_task_t *new_task = |
3996 | __kmpc_omp_task_alloc(loc, gtid, 1, 3 * sizeof(void *), |
3997 | sizeof(__taskloop_params_t), &__kmp_taskloop_task); |
3998 | __taskloop_params_t *p = (__taskloop_params_t *)new_task->shareds; |
3999 | p->task = next_task; |
4000 | p->lb = (kmp_uint64 *)((char *)next_task + lower_offset); |
4001 | p->ub = (kmp_uint64 *)((char *)next_task + upper_offset); |
4002 | p->task_dup = task_dup; |
4003 | p->st = st; |
4004 | p->ub_glob = ub_glob; |
4005 | p->num_tasks = n_tsk1; |
4006 | p->grainsize = grainsize; |
4007 | p->extras = ext1; |
4008 | p->tc = tc1; |
4009 | p->num_t_min = num_t_min; |
4010 | #if OMPT_SUPPORT1 |
4011 | p->codeptr_ra = codeptr_ra; |
4012 | #endif |
4013 | |
4014 | #if OMPT_SUPPORT1 |
4015 | // schedule new task with correct return address for OMPT events |
4016 | __kmp_omp_taskloop_task(NULL__null, gtid, new_task, codeptr_ra); |
4017 | #else |
4018 | __kmp_omp_task(NULL__null, gtid, new_task); // schedule new task |
4019 | #endif |
4020 | |
4021 | // execute the 1st half of current subrange |
4022 | if (n_tsk0 > num_t_min) |
4023 | __kmp_taskloop_recur(loc, gtid, task, lb, ub, st, ub_glob, n_tsk0, gr_size0, |
4024 | ext0, tc0, num_t_min, |
4025 | #if OMPT_SUPPORT1 |
4026 | codeptr_ra, |
4027 | #endif |
4028 | task_dup); |
4029 | else |
4030 | __kmp_taskloop_linear(loc, gtid, task, lb, ub, st, ub_glob, n_tsk0, |
4031 | gr_size0, ext0, tc0, |
4032 | #if OMPT_SUPPORT1 |
4033 | codeptr_ra, |
4034 | #endif |
4035 | task_dup); |
4036 | |
4037 | KA_TRACE(40, ("__kmpc_taskloop_recur(exit): T#%d\n", gtid))if (kmp_a_debug >= 40) { __kmp_debug_printf ("__kmpc_taskloop_recur(exit): T#%d\n" , gtid); }; |
4038 | } |
4039 | |
4040 | /*! |
4041 | @ingroup TASKING |
4042 | @param loc Source location information |
4043 | @param gtid Global thread ID |
4044 | @param task Task structure |
4045 | @param if_val Value of the if clause |
4046 | @param lb Pointer to loop lower bound in task structure |
4047 | @param ub Pointer to loop upper bound in task structure |
4048 | @param st Loop stride |
4049 | @param nogroup Flag, 1 if nogroup clause specified, 0 otherwise |
4050 | @param sched Schedule specified 0/1/2 for none/grainsize/num_tasks |
4051 | @param grainsize Schedule value if specified |
4052 | @param task_dup Tasks duplication routine |
4053 | |
4054 | Execute the taskloop construct. |
4055 | */ |
4056 | void __kmpc_taskloop(ident_t *loc, int gtid, kmp_task_t *task, int if_val, |
4057 | kmp_uint64 *lb, kmp_uint64 *ub, kmp_int64 st, int nogroup, |
4058 | int sched, kmp_uint64 grainsize, void *task_dup) { |
4059 | kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task)(((kmp_taskdata_t *)task) - 1); |
4060 | KMP_DEBUG_ASSERT(task != NULL)((task != __null) ? 0 : __kmp_debug_assert("task != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 4060)); |
4061 | |
4062 | if (nogroup == 0) { |
4063 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
4064 | OMPT_STORE_RETURN_ADDRESS(gtid)if (ompt_enabled.enabled && gtid >= 0 && __kmp_threads [gtid] && !__kmp_threads[gtid]->th.ompt_thread_info .return_address) __kmp_threads[gtid]->th.ompt_thread_info. return_address = __builtin_return_address(0); |
4065 | #endif |
4066 | __kmpc_taskgroup(loc, gtid); |
4067 | } |
4068 | |
4069 | // ========================================================================= |
4070 | // calculate loop parameters |
4071 | kmp_taskloop_bounds_t task_bounds(task, lb, ub); |
4072 | kmp_uint64 tc; |
4073 | // compiler provides global bounds here |
4074 | kmp_uint64 lower = task_bounds.get_lb(); |
4075 | kmp_uint64 upper = task_bounds.get_ub(); |
4076 | kmp_uint64 ub_glob = upper; // global upper used to calc lastprivate flag |
4077 | kmp_uint64 num_tasks = 0, extras = 0; |
4078 | kmp_uint64 num_tasks_min = __kmp_taskloop_min_tasks; |
4079 | kmp_info_t *thread = __kmp_threads[gtid]; |
4080 | kmp_taskdata_t *current_task = thread->th.th_current_task; |
4081 | |
4082 | KA_TRACE(20, ("__kmpc_taskloop: T#%d, task %p, lb %lld, ub %lld, st %lld, "if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, task %p, lb %lld, ub %lld, st %lld, " "grain %llu(%d), dup %p\n", gtid, taskdata, lower, upper, st , grainsize, sched, task_dup); } |
4083 | "grain %llu(%d), dup %p\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, task %p, lb %lld, ub %lld, st %lld, " "grain %llu(%d), dup %p\n", gtid, taskdata, lower, upper, st , grainsize, sched, task_dup); } |
4084 | gtid, taskdata, lower, upper, st, grainsize, sched, task_dup))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, task %p, lb %lld, ub %lld, st %lld, " "grain %llu(%d), dup %p\n", gtid, taskdata, lower, upper, st , grainsize, sched, task_dup); }; |
4085 | |
4086 | // compute trip count |
4087 | if (st == 1) { // most common case |
4088 | tc = upper - lower + 1; |
4089 | } else if (st < 0) { |
4090 | tc = (lower - upper) / (-st) + 1; |
4091 | } else { // st > 0 |
4092 | tc = (upper - lower) / st + 1; |
4093 | } |
4094 | if (tc == 0) { |
4095 | KA_TRACE(20, ("__kmpc_taskloop(exit): T#%d zero-trip loop\n", gtid))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop(exit): T#%d zero-trip loop\n" , gtid); }; |
4096 | // free the pattern task and exit |
4097 | __kmp_task_start(gtid, task, current_task); |
4098 | // do not execute anything for zero-trip loop |
4099 | __kmp_task_finish<false>(gtid, task, current_task); |
4100 | return; |
4101 | } |
4102 | |
4103 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
4104 | ompt_team_info_t *team_info = __ompt_get_teaminfo(0, NULL__null); |
4105 | ompt_task_info_t *task_info = __ompt_get_task_info_object(0); |
4106 | if (ompt_enabled.ompt_callback_work) { |
4107 | ompt_callbacks.ompt_callback(ompt_callback_work)ompt_callback_work_callback( |
4108 | ompt_work_taskloop, ompt_scope_begin, &(team_info->parallel_data), |
4109 | &(task_info->task_data), tc, OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0)); |
4110 | } |
4111 | #endif |
4112 | |
4113 | if (num_tasks_min == 0) |
4114 | // TODO: can we choose better default heuristic? |
4115 | num_tasks_min = |
4116 | KMP_MIN(thread->th.th_team_nproc * 10, INITIAL_TASK_DEQUE_SIZE)((thread->th.th_team_nproc * 10) < ((1 << 8)) ? ( thread->th.th_team_nproc * 10) : ((1 << 8))); |
4117 | |
4118 | // compute num_tasks/grainsize based on the input provided |
4119 | switch (sched) { |
4120 | case 0: // no schedule clause specified, we can choose the default |
4121 | // let's try to schedule (team_size*10) tasks |
4122 | grainsize = thread->th.th_team_nproc * 10; |
4123 | case 2: // num_tasks provided |
4124 | if (grainsize > tc) { |
4125 | num_tasks = tc; // too big num_tasks requested, adjust values |
4126 | grainsize = 1; |
4127 | extras = 0; |
4128 | } else { |
4129 | num_tasks = grainsize; |
4130 | grainsize = tc / num_tasks; |
4131 | extras = tc % num_tasks; |
4132 | } |
4133 | break; |
4134 | case 1: // grainsize provided |
4135 | if (grainsize > tc) { |
4136 | num_tasks = 1; // too big grainsize requested, adjust values |
4137 | grainsize = tc; |
4138 | extras = 0; |
4139 | } else { |
4140 | num_tasks = tc / grainsize; |
4141 | // adjust grainsize for balanced distribution of iterations |
4142 | grainsize = tc / num_tasks; |
4143 | extras = tc % num_tasks; |
4144 | } |
4145 | break; |
4146 | default: |
4147 | KMP_ASSERT2(0, "unknown scheduling of taskloop")((0) ? 0 : __kmp_debug_assert(("unknown scheduling of taskloop" ), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 4147)); |
4148 | } |
4149 | KMP_DEBUG_ASSERT(tc == num_tasks * grainsize + extras)((tc == num_tasks * grainsize + extras) ? 0 : __kmp_debug_assert ("tc == num_tasks * grainsize + extras", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 4149)); |
4150 | KMP_DEBUG_ASSERT(num_tasks > extras)((num_tasks > extras) ? 0 : __kmp_debug_assert("num_tasks > extras" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 4150)); |
4151 | KMP_DEBUG_ASSERT(num_tasks > 0)((num_tasks > 0) ? 0 : __kmp_debug_assert("num_tasks > 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_tasking.cpp" , 4151)); |
4152 | // ========================================================================= |
4153 | |
4154 | // check if clause value first |
4155 | // Also require GOMP_taskloop to reduce to linear (taskdata->td_flags.native) |
4156 | if (if_val == 0) { // if(0) specified, mark task as serial |
4157 | taskdata->td_flags.task_serial = 1; |
4158 | taskdata->td_flags.tiedness = TASK_TIED1; // AC: serial task cannot be untied |
4159 | // always start serial tasks linearly |
4160 | __kmp_taskloop_linear(loc, gtid, task, lb, ub, st, ub_glob, num_tasks, |
4161 | grainsize, extras, tc, |
4162 | #if OMPT_SUPPORT1 |
4163 | OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0), |
4164 | #endif |
4165 | task_dup); |
4166 | // !taskdata->td_flags.native => currently force linear spawning of tasks |
4167 | // for GOMP_taskloop |
4168 | } else if (num_tasks > num_tasks_min && !taskdata->td_flags.native) { |
4169 | KA_TRACE(20, ("__kmpc_taskloop: T#%d, go recursive: tc %llu, #tasks %llu"if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, go recursive: tc %llu, #tasks %llu" "(%lld), grain %llu, extras %llu\n", gtid, tc, num_tasks, num_tasks_min , grainsize, extras); } |
4170 | "(%lld), grain %llu, extras %llu\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, go recursive: tc %llu, #tasks %llu" "(%lld), grain %llu, extras %llu\n", gtid, tc, num_tasks, num_tasks_min , grainsize, extras); } |
4171 | gtid, tc, num_tasks, num_tasks_min, grainsize, extras))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, go recursive: tc %llu, #tasks %llu" "(%lld), grain %llu, extras %llu\n", gtid, tc, num_tasks, num_tasks_min , grainsize, extras); }; |
4172 | __kmp_taskloop_recur(loc, gtid, task, lb, ub, st, ub_glob, num_tasks, |
4173 | grainsize, extras, tc, num_tasks_min, |
4174 | #if OMPT_SUPPORT1 |
4175 | OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0), |
4176 | #endif |
4177 | task_dup); |
4178 | } else { |
4179 | KA_TRACE(20, ("__kmpc_taskloop: T#%d, go linear: tc %llu, #tasks %llu"if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, go linear: tc %llu, #tasks %llu" "(%lld), grain %llu, extras %llu\n", gtid, tc, num_tasks, num_tasks_min , grainsize, extras); } |
4180 | "(%lld), grain %llu, extras %llu\n",if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, go linear: tc %llu, #tasks %llu" "(%lld), grain %llu, extras %llu\n", gtid, tc, num_tasks, num_tasks_min , grainsize, extras); } |
4181 | gtid, tc, num_tasks, num_tasks_min, grainsize, extras))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop: T#%d, go linear: tc %llu, #tasks %llu" "(%lld), grain %llu, extras %llu\n", gtid, tc, num_tasks, num_tasks_min , grainsize, extras); }; |
4182 | __kmp_taskloop_linear(loc, gtid, task, lb, ub, st, ub_glob, num_tasks, |
4183 | grainsize, extras, tc, |
4184 | #if OMPT_SUPPORT1 |
4185 | OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0), |
4186 | #endif |
4187 | task_dup); |
4188 | } |
4189 | |
4190 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
4191 | if (ompt_enabled.ompt_callback_work) { |
4192 | ompt_callbacks.ompt_callback(ompt_callback_work)ompt_callback_work_callback( |
4193 | ompt_work_taskloop, ompt_scope_end, &(team_info->parallel_data), |
4194 | &(task_info->task_data), tc, OMPT_GET_RETURN_ADDRESS(0)__builtin_return_address(0)); |
4195 | } |
4196 | #endif |
4197 | |
4198 | if (nogroup == 0) { |
4199 | #if OMPT_SUPPORT1 && OMPT_OPTIONAL1 |
4200 | OMPT_STORE_RETURN_ADDRESS(gtid)if (ompt_enabled.enabled && gtid >= 0 && __kmp_threads [gtid] && !__kmp_threads[gtid]->th.ompt_thread_info .return_address) __kmp_threads[gtid]->th.ompt_thread_info. return_address = __builtin_return_address(0); |
4201 | #endif |
4202 | __kmpc_end_taskgroup(loc, gtid); |
4203 | } |
4204 | KA_TRACE(20, ("__kmpc_taskloop(exit): T#%d\n", gtid))if (kmp_a_debug >= 20) { __kmp_debug_printf ("__kmpc_taskloop(exit): T#%d\n" , gtid); }; |
4205 | } |
4206 | |
4207 | #endif |