17 #include "kmp_wait_release.h"
18 #include "kmp_taskdeps.h"
20 #include "ompt-specific.h"
32 #ifdef KMP_SUPPORT_GRAPH_OUTPUT
33 static std::atomic<kmp_int32> kmp_node_id_seed = ATOMIC_VAR_INIT(0);
36 static void __kmp_init_node(kmp_depnode_t *node) {
37 node->dn.successors = NULL;
40 for (
int i = 0; i < MAX_MTX_DEPS; ++i)
41 node->dn.mtx_locks[i] = NULL;
42 node->dn.mtx_num_locks = 0;
43 __kmp_init_lock(&node->dn.lock);
44 KMP_ATOMIC_ST_RLX(&node->dn.nrefs, 1);
45 #ifdef KMP_SUPPORT_GRAPH_OUTPUT
46 node->dn.id = KMP_ATOMIC_INC(&kmp_node_id_seed);
50 static inline kmp_depnode_t *__kmp_node_ref(kmp_depnode_t *node) {
51 KMP_ATOMIC_INC(&node->dn.nrefs);
55 enum { KMP_DEPHASH_OTHER_SIZE = 97, KMP_DEPHASH_MASTER_SIZE = 997 };
57 size_t sizes[] = {997, 2003, 4001, 8191, 16001, 32003, 64007, 131071, 270029};
58 const size_t MAX_GEN = 8;
60 static inline size_t __kmp_dephash_hash(kmp_intptr_t addr,
size_t hsize) {
63 return ((addr >> 6) ^ (addr >> 2)) % hsize;
66 static kmp_dephash_t *__kmp_dephash_extend(kmp_info_t *thread,
67 kmp_dephash_t *current_dephash) {
70 size_t gen = current_dephash->generation + 1;
72 return current_dephash;
73 size_t new_size = sizes[gen];
75 size_t size_to_allocate =
76 new_size *
sizeof(kmp_dephash_entry_t *) +
sizeof(kmp_dephash_t);
79 h = (kmp_dephash_t *)__kmp_fast_allocate(thread, size_to_allocate);
81 h = (kmp_dephash_t *)__kmp_thread_malloc(thread, size_to_allocate);
85 h->nelements = current_dephash->nelements;
86 h->buckets = (kmp_dephash_entry **)(h + 1);
91 for (
size_t i = 0; i < new_size; i++) {
96 for (
size_t i = 0; i < current_dephash->size; i++) {
97 kmp_dephash_entry_t *next, *entry;
98 for (entry = current_dephash->buckets[i]; entry; entry = next) {
99 next = entry->next_in_bucket;
102 size_t new_bucket = __kmp_dephash_hash(entry->addr, h->size);
103 entry->next_in_bucket = h->buckets[new_bucket];
104 if (entry->next_in_bucket) {
107 h->buckets[new_bucket] = entry;
113 __kmp_fast_free(thread, current_dephash);
115 __kmp_thread_free(thread, current_dephash);
121 static kmp_dephash_t *__kmp_dephash_create(kmp_info_t *thread,
122 kmp_taskdata_t *current_task) {
127 if (current_task->td_flags.tasktype == TASK_IMPLICIT)
128 h_size = KMP_DEPHASH_MASTER_SIZE;
130 h_size = KMP_DEPHASH_OTHER_SIZE;
132 size_t size = h_size *
sizeof(kmp_dephash_entry_t *) +
sizeof(kmp_dephash_t);
135 h = (kmp_dephash_t *)__kmp_fast_allocate(thread, size);
137 h = (kmp_dephash_t *)__kmp_thread_malloc(thread, size);
144 h->buckets = (kmp_dephash_entry **)(h + 1);
146 for (
size_t i = 0; i < h_size; i++)
152 static kmp_dephash_entry *__kmp_dephash_find(kmp_info_t *thread,
153 kmp_dephash_t **hash,
155 kmp_dephash_t *h = *hash;
156 if (h->nelements != 0 && h->nconflicts / h->size >= 1) {
157 *hash = __kmp_dephash_extend(thread, h);
160 size_t bucket = __kmp_dephash_hash(addr, h->size);
162 kmp_dephash_entry_t *entry;
163 for (entry = h->buckets[bucket]; entry; entry = entry->next_in_bucket)
164 if (entry->addr == addr)
170 entry = (kmp_dephash_entry_t *)__kmp_fast_allocate(
171 thread,
sizeof(kmp_dephash_entry_t));
173 entry = (kmp_dephash_entry_t *)__kmp_thread_malloc(
174 thread,
sizeof(kmp_dephash_entry_t));
177 entry->last_out = NULL;
178 entry->last_set = NULL;
179 entry->prev_set = NULL;
180 entry->last_flag = 0;
181 entry->mtx_lock = NULL;
182 entry->next_in_bucket = h->buckets[bucket];
183 h->buckets[bucket] = entry;
185 if (entry->next_in_bucket)
191 static kmp_depnode_list_t *__kmp_add_node(kmp_info_t *thread,
192 kmp_depnode_list_t *list,
193 kmp_depnode_t *node) {
194 kmp_depnode_list_t *new_head;
197 new_head = (kmp_depnode_list_t *)__kmp_fast_allocate(
198 thread,
sizeof(kmp_depnode_list_t));
200 new_head = (kmp_depnode_list_t *)__kmp_thread_malloc(
201 thread,
sizeof(kmp_depnode_list_t));
204 new_head->node = __kmp_node_ref(node);
205 new_head->next = list;
210 static inline void __kmp_track_dependence(kmp_int32 gtid, kmp_depnode_t *source,
212 kmp_task_t *sink_task) {
213 #ifdef KMP_SUPPORT_GRAPH_OUTPUT
214 kmp_taskdata_t *task_source = KMP_TASK_TO_TASKDATA(source->dn.task);
217 kmp_taskdata_t *task_sink = KMP_TASK_TO_TASKDATA(sink_task);
219 __kmp_printf(
"%d(%s) -> %d(%s)\n", source->dn.id,
220 task_source->td_ident->psource, sink->dn.id,
221 task_sink->td_ident->psource);
223 #if OMPT_SUPPORT && OMPT_OPTIONAL
227 if (ompt_enabled.ompt_callback_task_dependence) {
228 kmp_taskdata_t *task_source = KMP_TASK_TO_TASKDATA(source->dn.task);
229 ompt_data_t *sink_data;
231 sink_data = &(KMP_TASK_TO_TASKDATA(sink_task)->ompt_task_info.task_data);
233 sink_data = &__kmp_threads[gtid]->th.ompt_thread_info.task_data;
235 ompt_callbacks.ompt_callback(ompt_callback_task_dependence)(
236 &(task_source->ompt_task_info.task_data), sink_data);
241 static inline kmp_int32
242 __kmp_depnode_link_successor(kmp_int32 gtid, kmp_info_t *thread,
243 kmp_task_t *task, kmp_depnode_t *node,
244 kmp_depnode_list_t *plist) {
247 kmp_int32 npredecessors = 0;
249 for (kmp_depnode_list_t *p = plist; p; p = p->next) {
250 kmp_depnode_t *dep = p->node;
252 KMP_ACQUIRE_DEPNODE(gtid, dep);
254 __kmp_track_dependence(gtid, dep, node, task);
255 dep->dn.successors = __kmp_add_node(thread, dep->dn.successors, node);
256 KA_TRACE(40, (
"__kmp_process_deps: T#%d adding dependence from %p to "
258 gtid, KMP_TASK_TO_TASKDATA(dep->dn.task),
259 KMP_TASK_TO_TASKDATA(task)));
262 KMP_RELEASE_DEPNODE(gtid, dep);
265 return npredecessors;
268 static inline kmp_int32 __kmp_depnode_link_successor(kmp_int32 gtid,
271 kmp_depnode_t *source,
272 kmp_depnode_t *sink) {
275 kmp_int32 npredecessors = 0;
278 KMP_ACQUIRE_DEPNODE(gtid, sink);
280 __kmp_track_dependence(gtid, sink, source, task);
281 sink->dn.successors = __kmp_add_node(thread, sink->dn.successors, source);
282 KA_TRACE(40, (
"__kmp_process_deps: T#%d adding dependence from %p to "
284 gtid, KMP_TASK_TO_TASKDATA(sink->dn.task),
285 KMP_TASK_TO_TASKDATA(task)));
288 KMP_RELEASE_DEPNODE(gtid, sink);
290 return npredecessors;
293 template <
bool filter>
294 static inline kmp_int32
295 __kmp_process_deps(kmp_int32 gtid, kmp_depnode_t *node, kmp_dephash_t **hash,
296 bool dep_barrier, kmp_int32 ndeps,
297 kmp_depend_info_t *dep_list, kmp_task_t *task) {
298 KA_TRACE(30, (
"__kmp_process_deps<%d>: T#%d processing %d dependences : "
299 "dep_barrier = %d\n",
300 filter, gtid, ndeps, dep_barrier));
302 kmp_info_t *thread = __kmp_threads[gtid];
303 kmp_int32 npredecessors = 0;
304 for (kmp_int32 i = 0; i < ndeps; i++) {
305 const kmp_depend_info_t *dep = &dep_list[i];
307 if (filter && dep->base_addr == 0)
310 kmp_dephash_entry_t *info =
311 __kmp_dephash_find(thread, hash, dep->base_addr);
312 kmp_depnode_t *last_out = info->last_out;
313 kmp_depnode_list_t *last_set = info->last_set;
314 kmp_depnode_list_t *prev_set = info->prev_set;
316 if (dep->flags.out) {
319 __kmp_depnode_link_successor(gtid, thread, task, node, last_set);
320 __kmp_depnode_list_free(thread, last_set);
321 __kmp_depnode_list_free(thread, prev_set);
322 info->last_set = NULL;
323 info->prev_set = NULL;
327 __kmp_depnode_link_successor(gtid, thread, task, node, last_out);
329 __kmp_node_deref(thread, last_out);
331 info->last_out = __kmp_node_ref(node);
336 info->last_out = NULL;
339 if (info->last_flag == 0 || info->last_flag == dep->flag) {
343 __kmp_depnode_link_successor(gtid, thread, task, node, last_out);
346 __kmp_depnode_link_successor(gtid, thread, task, node, prev_set);
350 __kmp_depnode_link_successor(gtid, thread, task, node, last_set);
352 __kmp_node_deref(thread, last_out);
353 info->last_out = NULL;
355 __kmp_depnode_list_free(thread, prev_set);
357 info->prev_set = last_set;
358 info->last_set = NULL;
360 info->last_flag = dep->flag;
361 info->last_set = __kmp_add_node(thread, info->last_set, node);
364 if (dep->flag == KMP_DEP_MTX) {
365 if (info->mtx_lock == NULL) {
366 info->mtx_lock = (kmp_lock_t *)__kmp_allocate(
sizeof(kmp_lock_t));
367 __kmp_init_lock(info->mtx_lock);
369 KMP_DEBUG_ASSERT(node->dn.mtx_num_locks < MAX_MTX_DEPS);
372 for (m = 0; m < MAX_MTX_DEPS; ++m) {
374 if (node->dn.mtx_locks[m] < info->mtx_lock) {
375 KMP_DEBUG_ASSERT(!node->dn.mtx_locks[node->dn.mtx_num_locks]);
376 for (
int n = node->dn.mtx_num_locks; n > m; --n) {
378 KMP_DEBUG_ASSERT(node->dn.mtx_locks[n - 1] != NULL);
379 node->dn.mtx_locks[n] = node->dn.mtx_locks[n - 1];
381 node->dn.mtx_locks[m] = info->mtx_lock;
385 KMP_DEBUG_ASSERT(m < MAX_MTX_DEPS);
386 node->dn.mtx_num_locks++;
390 KA_TRACE(30, (
"__kmp_process_deps<%d>: T#%d found %d predecessors\n", filter,
391 gtid, npredecessors));
392 return npredecessors;
395 #define NO_DEP_BARRIER (false)
396 #define DEP_BARRIER (true)
399 static bool __kmp_check_deps(kmp_int32 gtid, kmp_depnode_t *node,
400 kmp_task_t *task, kmp_dephash_t **hash,
401 bool dep_barrier, kmp_int32 ndeps,
402 kmp_depend_info_t *dep_list,
403 kmp_int32 ndeps_noalias,
404 kmp_depend_info_t *noalias_dep_list) {
407 kmp_taskdata_t *taskdata = KMP_TASK_TO_TASKDATA(task);
409 KA_TRACE(20, (
"__kmp_check_deps: T#%d checking dependences for task %p : %d "
410 "possibly aliased dependences, %d non-aliased dependences : "
411 "dep_barrier=%d .\n",
412 gtid, taskdata, ndeps, ndeps_noalias, dep_barrier));
416 for (i = 0; i < ndeps; i++) {
417 if (dep_list[i].base_addr != 0) {
419 dep_list[i].flag == KMP_DEP_IN || dep_list[i].flag == KMP_DEP_OUT ||
420 dep_list[i].flag == KMP_DEP_INOUT ||
421 dep_list[i].flag == KMP_DEP_MTX || dep_list[i].flag == KMP_DEP_SET);
422 for (
int j = i + 1; j < ndeps; j++) {
423 if (dep_list[i].base_addr == dep_list[j].base_addr) {
424 if (dep_list[i].flag != dep_list[j].flag) {
426 dep_list[i].flag = KMP_DEP_OUT;
428 dep_list[j].base_addr = 0;
431 if (dep_list[i].flag == KMP_DEP_MTX) {
433 if (n_mtxs < MAX_MTX_DEPS && task != NULL) {
436 dep_list[i].flag = KMP_DEP_OUT;
446 node->dn.npredecessors = -1;
452 npredecessors = __kmp_process_deps<true>(gtid, node, hash, dep_barrier, ndeps,
454 npredecessors += __kmp_process_deps<false>(
455 gtid, node, hash, dep_barrier, ndeps_noalias, noalias_dep_list, task);
457 node->dn.task = task;
467 node->dn.npredecessors.fetch_add(npredecessors) + npredecessors;
469 KA_TRACE(20, (
"__kmp_check_deps: T#%d found %d predecessors for task %p \n",
470 gtid, npredecessors, taskdata));
474 return npredecessors > 0 ? true :
false;
494 kmp_task_t *new_task, kmp_int32 ndeps,
495 kmp_depend_info_t *dep_list,
496 kmp_int32 ndeps_noalias,
497 kmp_depend_info_t *noalias_dep_list) {
499 kmp_taskdata_t *new_taskdata = KMP_TASK_TO_TASKDATA(new_task);
500 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(enter): T#%d loc=%p task=%p\n", gtid,
501 loc_ref, new_taskdata));
502 __kmp_assert_valid_gtid(gtid);
503 kmp_info_t *thread = __kmp_threads[gtid];
504 kmp_taskdata_t *current_task = thread->th.th_current_task;
507 if (ompt_enabled.enabled) {
508 if (!current_task->ompt_task_info.frame.enter_frame.ptr)
509 current_task->ompt_task_info.frame.enter_frame.ptr =
510 OMPT_GET_FRAME_ADDRESS(0);
511 if (ompt_enabled.ompt_callback_task_create) {
512 ompt_callbacks.ompt_callback(ompt_callback_task_create)(
513 &(current_task->ompt_task_info.task_data),
514 &(current_task->ompt_task_info.frame),
515 &(new_taskdata->ompt_task_info.task_data),
516 ompt_task_explicit | TASK_TYPE_DETAILS_FORMAT(new_taskdata), 1,
517 OMPT_LOAD_OR_GET_RETURN_ADDRESS(gtid));
520 new_taskdata->ompt_task_info.frame.enter_frame.ptr =
521 OMPT_GET_FRAME_ADDRESS(0);
526 if (ndeps + ndeps_noalias > 0 && ompt_enabled.ompt_callback_dependences) {
529 int ompt_ndeps = ndeps + ndeps_noalias;
530 ompt_dependence_t *ompt_deps = (ompt_dependence_t *)KMP_OMPT_DEPS_ALLOC(
531 thread, (ndeps + ndeps_noalias) *
sizeof(ompt_dependence_t));
533 KMP_ASSERT(ompt_deps != NULL);
535 for (i = 0; i < ndeps; i++) {
536 ompt_deps[i].variable.ptr = (
void *)dep_list[i].base_addr;
537 if (dep_list[i].flags.in && dep_list[i].flags.out)
538 ompt_deps[i].dependence_type = ompt_dependence_type_inout;
539 else if (dep_list[i].flags.out)
540 ompt_deps[i].dependence_type = ompt_dependence_type_out;
541 else if (dep_list[i].flags.in)
542 ompt_deps[i].dependence_type = ompt_dependence_type_in;
543 else if (dep_list[i].flags.mtx)
544 ompt_deps[i].dependence_type = ompt_dependence_type_mutexinoutset;
545 else if (dep_list[i].flags.set)
546 ompt_deps[i].dependence_type = ompt_dependence_type_inoutset;
548 for (i = 0; i < ndeps_noalias; i++) {
549 ompt_deps[ndeps + i].variable.ptr = (
void *)noalias_dep_list[i].base_addr;
550 if (noalias_dep_list[i].flags.in && noalias_dep_list[i].flags.out)
551 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inout;
552 else if (noalias_dep_list[i].flags.out)
553 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_out;
554 else if (noalias_dep_list[i].flags.in)
555 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_in;
556 else if (noalias_dep_list[i].flags.mtx)
557 ompt_deps[ndeps + i].dependence_type =
558 ompt_dependence_type_mutexinoutset;
559 else if (noalias_dep_list[i].flags.set)
560 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inoutset;
562 ompt_callbacks.ompt_callback(ompt_callback_dependences)(
563 &(new_taskdata->ompt_task_info.task_data), ompt_deps, ompt_ndeps);
566 KMP_OMPT_DEPS_FREE(thread, ompt_deps);
571 bool serial = current_task->td_flags.team_serial ||
572 current_task->td_flags.tasking_ser ||
573 current_task->td_flags.final;
574 kmp_task_team_t *task_team = thread->th.th_task_team;
576 !(task_team && (task_team->tt.tt_found_proxy_tasks ||
577 task_team->tt.tt_hidden_helper_task_encountered));
579 if (!serial && (ndeps > 0 || ndeps_noalias > 0)) {
581 if (current_task->td_dephash == NULL)
582 current_task->td_dephash = __kmp_dephash_create(thread, current_task);
585 kmp_depnode_t *node =
586 (kmp_depnode_t *)__kmp_fast_allocate(thread,
sizeof(kmp_depnode_t));
588 kmp_depnode_t *node =
589 (kmp_depnode_t *)__kmp_thread_malloc(thread,
sizeof(kmp_depnode_t));
592 __kmp_init_node(node);
593 new_taskdata->td_depnode = node;
595 if (__kmp_check_deps(gtid, node, new_task, ¤t_task->td_dephash,
596 NO_DEP_BARRIER, ndeps, dep_list, ndeps_noalias,
598 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(exit): T#%d task had blocking "
600 "loc=%p task=%p, return: TASK_CURRENT_NOT_QUEUED\n",
601 gtid, loc_ref, new_taskdata));
603 if (ompt_enabled.enabled) {
604 current_task->ompt_task_info.frame.enter_frame = ompt_data_none;
607 return TASK_CURRENT_NOT_QUEUED;
610 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(exit): T#%d ignored dependences "
611 "for task (serialized) loc=%p task=%p\n",
612 gtid, loc_ref, new_taskdata));
615 KA_TRACE(10, (
"__kmpc_omp_task_with_deps(exit): T#%d task had no blocking "
617 "loc=%p task=%p, transferring to __kmp_omp_task\n",
618 gtid, loc_ref, new_taskdata));
620 kmp_int32 ret = __kmp_omp_task(gtid, new_task,
true);
622 if (ompt_enabled.enabled) {
623 current_task->ompt_task_info.frame.enter_frame = ompt_data_none;
630 void __ompt_taskwait_dep_finish(kmp_taskdata_t *current_task,
631 ompt_data_t *taskwait_task_data) {
632 if (ompt_enabled.ompt_callback_task_schedule) {
633 ompt_callbacks.ompt_callback(ompt_callback_task_schedule)(
634 taskwait_task_data, ompt_taskwait_complete, NULL);
636 current_task->ompt_task_info.frame.enter_frame.ptr = NULL;
637 *taskwait_task_data = ompt_data_none;
653 kmp_depend_info_t *dep_list, kmp_int32 ndeps_noalias,
654 kmp_depend_info_t *noalias_dep_list) {
655 KA_TRACE(10, (
"__kmpc_omp_wait_deps(enter): T#%d loc=%p\n", gtid, loc_ref));
657 if (ndeps == 0 && ndeps_noalias == 0) {
658 KA_TRACE(10, (
"__kmpc_omp_wait_deps(exit): T#%d has no dependences to "
659 "wait upon : loc=%p\n",
663 __kmp_assert_valid_gtid(gtid);
664 kmp_info_t *thread = __kmp_threads[gtid];
665 kmp_taskdata_t *current_task = thread->th.th_current_task;
673 ompt_data_t *taskwait_task_data = &thread->th.ompt_thread_info.task_data;
674 KMP_ASSERT(taskwait_task_data->ptr == NULL);
675 if (ompt_enabled.enabled) {
676 if (!current_task->ompt_task_info.frame.enter_frame.ptr)
677 current_task->ompt_task_info.frame.enter_frame.ptr =
678 OMPT_GET_FRAME_ADDRESS(0);
679 if (ompt_enabled.ompt_callback_task_create) {
680 ompt_callbacks.ompt_callback(ompt_callback_task_create)(
681 &(current_task->ompt_task_info.task_data),
682 &(current_task->ompt_task_info.frame), taskwait_task_data,
683 ompt_task_taskwait | ompt_task_undeferred | ompt_task_mergeable, 1,
684 OMPT_LOAD_OR_GET_RETURN_ADDRESS(gtid));
690 if (ndeps + ndeps_noalias > 0 && ompt_enabled.ompt_callback_dependences) {
693 int ompt_ndeps = ndeps + ndeps_noalias;
694 ompt_dependence_t *ompt_deps = (ompt_dependence_t *)KMP_OMPT_DEPS_ALLOC(
695 thread, (ndeps + ndeps_noalias) *
sizeof(ompt_dependence_t));
697 KMP_ASSERT(ompt_deps != NULL);
699 for (i = 0; i < ndeps; i++) {
700 ompt_deps[i].variable.ptr = (
void *)dep_list[i].base_addr;
701 if (dep_list[i].flags.in && dep_list[i].flags.out)
702 ompt_deps[i].dependence_type = ompt_dependence_type_inout;
703 else if (dep_list[i].flags.out)
704 ompt_deps[i].dependence_type = ompt_dependence_type_out;
705 else if (dep_list[i].flags.in)
706 ompt_deps[i].dependence_type = ompt_dependence_type_in;
707 else if (dep_list[i].flags.mtx)
708 ompt_deps[ndeps + i].dependence_type =
709 ompt_dependence_type_mutexinoutset;
710 else if (dep_list[i].flags.set)
711 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inoutset;
713 for (i = 0; i < ndeps_noalias; i++) {
714 ompt_deps[ndeps + i].variable.ptr = (
void *)noalias_dep_list[i].base_addr;
715 if (noalias_dep_list[i].flags.in && noalias_dep_list[i].flags.out)
716 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inout;
717 else if (noalias_dep_list[i].flags.out)
718 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_out;
719 else if (noalias_dep_list[i].flags.in)
720 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_in;
721 else if (noalias_dep_list[i].flags.mtx)
722 ompt_deps[ndeps + i].dependence_type =
723 ompt_dependence_type_mutexinoutset;
724 else if (noalias_dep_list[i].flags.set)
725 ompt_deps[ndeps + i].dependence_type = ompt_dependence_type_inoutset;
727 ompt_callbacks.ompt_callback(ompt_callback_dependences)(
728 taskwait_task_data, ompt_deps, ompt_ndeps);
731 KMP_OMPT_DEPS_FREE(thread, ompt_deps);
740 bool ignore = current_task->td_flags.team_serial ||
741 current_task->td_flags.tasking_ser ||
742 current_task->td_flags.final;
743 ignore = ignore && thread->th.th_task_team != NULL &&
744 thread->th.th_task_team->tt.tt_found_proxy_tasks == FALSE;
745 ignore = ignore || current_task->td_dephash == NULL;
748 KA_TRACE(10, (
"__kmpc_omp_wait_deps(exit): T#%d has no blocking "
749 "dependences : loc=%p\n",
752 __ompt_taskwait_dep_finish(current_task, taskwait_task_data);
757 kmp_depnode_t node = {0};
758 __kmp_init_node(&node);
760 __kmp_node_ref(&node);
762 if (!__kmp_check_deps(gtid, &node, NULL, ¤t_task->td_dephash,
763 DEP_BARRIER, ndeps, dep_list, ndeps_noalias,
765 KA_TRACE(10, (
"__kmpc_omp_wait_deps(exit): T#%d has no blocking "
766 "dependences : loc=%p\n",
769 __ompt_taskwait_dep_finish(current_task, taskwait_task_data);
774 int thread_finished = FALSE;
775 kmp_flag_32<false, false> flag(
776 (std::atomic<kmp_uint32> *)&node.dn.npredecessors, 0U);
777 while (node.dn.npredecessors > 0) {
778 flag.execute_tasks(thread, gtid, FALSE,
779 &thread_finished USE_ITT_BUILD_ARG(NULL),
780 __kmp_task_stealing_constraint);
784 __ompt_taskwait_dep_finish(current_task, taskwait_task_data);
786 KA_TRACE(10, (
"__kmpc_omp_wait_deps(exit): T#%d finished waiting : loc=%p\n",
kmp_int32 __kmpc_omp_task_with_deps(ident_t *loc_ref, kmp_int32 gtid, kmp_task_t *new_task, kmp_int32 ndeps, kmp_depend_info_t *dep_list, kmp_int32 ndeps_noalias, kmp_depend_info_t *noalias_dep_list)
void __kmpc_omp_wait_deps(ident_t *loc_ref, kmp_int32 gtid, kmp_int32 ndeps, kmp_depend_info_t *dep_list, kmp_int32 ndeps_noalias, kmp_depend_info_t *noalias_dep_list)