28 #if __TBB_STATISTICS_STDOUT 35 #if __TBB_NUMA_SUPPORT 38 binding_handler* binding_handler_ptr;
40 numa_binding_observer( task_arena* ta,
int numa_id,
int num_slots )
41 : task_scheduler_observer(*ta)
42 , my_numa_node_id(numa_id)
43 , binding_handler_ptr(
tbb::
internal::construct_binding_handler(num_slots))
47 tbb::internal::bind_thread_to_node(
55 ~numa_binding_observer(){
56 tbb::internal::destroy_binding_handler(binding_handler_ptr);
61 int numa_id,
int num_slots ) {
62 numa_binding_observer* binding_observer = NULL;
64 if (numa_id >= 0 && numa_topology::nodes_count() > 1) {
65 binding_observer =
new numa_binding_observer(ta, numa_id, num_slots);
66 __TBB_ASSERT(binding_observer,
"Failure during NUMA binding observer allocation and construction");
67 binding_observer->observe(
true);
69 return binding_observer;
72 void destroy_binding_observer( numa_binding_observer* binding_observer ) {
73 __TBB_ASSERT(binding_observer,
"Trying to deallocate NULL pointer");
74 binding_observer->observe(
false);
75 delete binding_observer;
91 #if __TBB_TASK_GROUP_CONTEXT 96 #if __TBB_TASK_PRIORITY 103 my_ref_top_priority = &a->my_top_priority;
104 my_ref_reload_epoch = &a->my_reload_epoch;
106 my_local_reload_epoch = *my_ref_reload_epoch;
112 return !slot &&
as_atomic( slot ).compare_and_swap( &
s, NULL ) == NULL;
118 size_t index =
s.my_arena_index;
119 if ( index < lower || index >= upper ) index =
s.my_random.get() % (upper - lower) + lower;
122 for (
size_t i = index; i < upper; ++i )
124 for (
size_t i = lower; i < index; ++i )
129 template <
bool as_worker>
149 __TBB_ASSERT(
s.my_innermost_running_task ==
s.my_dummy_task, NULL );
159 s.attach_arena(
this, index,
false );
161 #if !__TBB_FP_CONTEXT 165 #if __TBB_ARENA_OBSERVER 166 __TBB_ASSERT( !
s.my_last_local_observer,
"There cannot be notified local observers when entering arena" );
167 my_observers.notify_entry_observers(
s.my_last_local_observer,
true );
173 s.local_wait_for_all( *
s.my_dummy_task, NULL );
178 __TBB_ASSERT(
s.my_innermost_running_task ==
s.my_dummy_task, NULL );
182 "Worker cannot leave arena while its task pool is not reset" );
195 s.my_innermost_running_task =
s.my_dummy_task;
196 s.local_wait_for_all(*
s.my_dummy_task,t);
199 #if __TBB_ARENA_OBSERVER 200 my_observers.notify_exit_observers(
s.my_last_local_observer,
true );
201 s.my_last_local_observer = NULL;
203 #if __TBB_TASK_PRIORITY 204 if (
s.my_offloaded_tasks )
205 orphan_offloaded_tasks(
s );
208 ++
s.my_counters.arena_roundtrips;
209 *
my_slots[index].my_counters +=
s.my_counters;
210 s.my_counters.reset();
216 __TBB_ASSERT(
s.my_innermost_running_task ==
s.my_dummy_task, NULL );
223 on_thread_leaving<ref_worker>();
227 __TBB_ASSERT( !my_guard,
"improperly allocated arena?" );
230 #if __TBB_TASK_PRIORITY 231 __TBB_ASSERT( !my_reload_epoch && !my_orphaned_tasks && !my_skipped_fifo_priority,
"New arena object is not zeroed" );
240 #if __TBB_TASK_PRIORITY 241 my_bottom_priority = my_top_priority = normalized_normal_priority;
244 #if __TBB_ARENA_OBSERVER 245 my_observers.my_arena =
this;
247 #if __TBB_PREVIEW_RESUMABLE_TASKS 248 my_co_cache.init(4 * num_slots);
256 #if __TBB_PREVIEW_RESUMABLE_TASKS 263 #if __TBB_PREVIEW_CRITICAL_TASKS 267 my_slots[i].my_counters =
new (
NFS_Allocate(1,
sizeof(statistics_counters), NULL) ) statistics_counters;
272 #if __TBB_PREVIEW_CRITICAL_TASKS 274 ITT_SYNC_CREATE(&my_critical_task_stream, SyncType_Scheduler, SyncObj_CriticalTaskStream);
276 #if __TBB_ENQUEUE_ENFORCED_CONCURRENCY 277 my_local_concurrency_mode =
false;
278 my_global_concurrency_mode =
false;
280 #if !__TBB_FP_CONTEXT 290 unsigned char* storage = (
unsigned char*)
NFS_Allocate( 1, n, NULL );
292 memset( storage, 0, n );
301 #if __TBB_ENQUEUE_ENFORCED_CONCURRENCY 304 #if !__TBB_STATISTICS_EARLY_DUMP 308 intptr_t drained = 0;
321 #if __TBB_PREVIEW_RESUMABLE_TASKS 323 my_co_cache.cleanup();
325 #if __TBB_PREVIEW_CRITICAL_TASKS 326 __TBB_ASSERT( my_critical_task_stream.drain()==0,
"Not all critical tasks were executed");
328 #if __TBB_COUNT_TASK_NODES 329 my_market->update_task_node_count( -drained );
333 #if __TBB_TASK_GROUP_CONTEXT 334 __TBB_ASSERT( my_default_ctx,
"Master thread never entered the arena?" );
335 my_default_ctx->~task_group_context();
338 #if __TBB_ARENA_OBSERVER 339 if ( !my_observers.empty() )
340 my_observers.clear();
346 #if TBB_USE_ASSERT > 1 353 void arena::dump_arena_statistics () {
354 statistics_counters total;
356 #if __TBB_STATISTICS_EARLY_DUMP 359 *
my_slots[i].my_counters +=
s->my_counters;
365 dump_statistics( *
my_slots[i].my_counters, i );
368 dump_statistics( *
my_slots[0].my_counters, 0 );
369 #if __TBB_STATISTICS_STDOUT 370 #if !__TBB_STATISTICS_TOTALS_ONLY 371 printf(
"----------------------------------------------\n" );
373 dump_statistics( total, workers_counters_total );
375 dump_statistics( total, arena_counters_total );
376 #if !__TBB_STATISTICS_TOTALS_ONLY 377 printf(
"==============================================\n" );
383 #if __TBB_TASK_PRIORITY 388 inline bool arena::may_have_tasks ( generic_scheduler*
s,
bool& tasks_present,
bool& dequeuing_possible ) {
389 if ( !
s ||
s->my_arena !=
this )
391 dequeuing_possible |=
s->worker_outermost_level();
392 if (
s->my_pool_reshuffling_pending ) {
395 tasks_present =
true;
398 if (
s->my_offloaded_tasks ) {
399 tasks_present =
true;
400 if (
s->my_local_reload_epoch < *
s->my_ref_reload_epoch ) {
409 void arena::orphan_offloaded_tasks(generic_scheduler&
s) {
412 ++my_abandonment_epoch;
413 __TBB_ASSERT(
s.my_offloaded_task_list_tail_link && !*
s.my_offloaded_task_list_tail_link, NULL );
416 orphans =
const_cast<task*
>(my_orphaned_tasks);
417 *
s.my_offloaded_task_list_tail_link = orphans;
418 }
while (
as_atomic(my_orphaned_tasks).compare_and_swap(
s.my_offloaded_tasks, orphans) != orphans );
419 s.my_offloaded_tasks = NULL;
421 s.my_offloaded_task_list_tail_link = NULL;
441 advertise_new_work<work_enqueued>();
442 #if __TBB_TASK_PRIORITY 447 if ( p < my_bottom_priority || p > my_top_priority )
473 #if __TBB_TASK_PRIORITY 475 intptr_t top_priority = my_top_priority;
479 for( k=0; k<n; ++k ) {
490 bool work_absent = k == n;
491 #if __TBB_PREVIEW_CRITICAL_TASKS 492 bool no_critical_tasks = my_critical_task_stream.empty(0);
493 work_absent &= no_critical_tasks;
495 #if __TBB_TASK_PRIORITY 498 bool tasks_present = !work_absent || my_orphaned_tasks;
499 bool dequeuing_possible =
false;
504 uintptr_t abandonment_epoch = my_abandonment_epoch;
510 the_context_state_propagation_mutex.lock();
511 work_absent = !may_have_tasks(
my_slots[0].my_scheduler, tasks_present, dequeuing_possible );
512 the_context_state_propagation_mutex.unlock();
525 for( k = 1; work_absent && k < n; ++k ) {
528 work_absent = !may_have_tasks(
my_slots[k].my_scheduler, tasks_present, dequeuing_possible );
531 work_absent = work_absent
533 && abandonment_epoch == my_abandonment_epoch;
538 #if __TBB_TASK_PRIORITY 540 work_absent = work_absent && (!dequeuing_possible || no_fifo_tasks)
541 && top_priority == my_top_priority && reload_epoch == my_reload_epoch;
544 work_absent = work_absent && no_fifo_tasks;
547 #if __TBB_TASK_PRIORITY 548 if ( top_priority > my_bottom_priority ) {
549 if (
my_market->lower_arena_priority(*
this, top_priority - 1, reload_epoch)
552 atomic_update( my_skipped_fifo_priority, top_priority, std::less<intptr_t>());
555 else if ( !tasks_present && !my_orphaned_tasks && no_fifo_tasks ) {
568 #if __TBB_TASK_PRIORITY 585 #if __TBB_COUNT_TASK_NODES 586 intptr_t arena::workers_task_node_count() {
591 result +=
s->my_task_node_count;
599 #if __TBB_RECYCLE_TO_ENQUEUE 610 __TBB_ASSERT( ref_count!=0,
"attempt to enqueue task whose parent has a ref_count==0 (forgot to set_ref_count?)" );
611 __TBB_ASSERT( ref_count>0,
"attempt to enqueue task whose parent has a ref_count<0" );
616 #if __TBB_PREVIEW_CRITICAL_TASKS 618 #if __TBB_TASK_PRIORITY 621 bool is_critical = internal::is_critical( t ); 629 if(
s &&
s->my_arena_slot ) {
632 #if __TBB_TASK_ISOLATION 635 unsigned& lane =
s->my_arena_slot->hint_for_critical;
642 advertise_new_work<work_spawned>();
648 #if __TBB_TASK_PRIORITY 649 intptr_t
p = prio ? normalize_priority(
priority_t(prio)) : normalized_normal_priority;
650 assert_priority_valid(
p);
651 #if __TBB_PREVIEW_CRITICAL_TASKS && __TBB_CPF_BUILD 654 my_task_stream.push( &t,
p, random );
656 if (
p != my_top_priority )
657 my_market->update_arena_priority( *
this,
p );
659 __TBB_ASSERT_EX(prio == 0,
"the library is not configured to respect the task priority");
660 #if __TBB_PREVIEW_CRITICAL_TASKS && __TBB_CPF_BUILD 663 my_task_stream.push( &t, 0, random );
666 advertise_new_work<work_enqueued>();
667 #if __TBB_TASK_PRIORITY 668 if (
p != my_top_priority )
669 my_market->update_arena_priority( *
this,
p );
683 #if __TBB_PREVIEW_RESUMABLE_TASKS 688 s->nested_arena_entry(a, slot_index);
692 #if __TBB_TASK_GROUP_CONTEXT 701 #if __TBB_TASK_PRIORITY 718 #if __TBB_PREVIEW_CRITICAL_TASKS 721 #if __TBB_TASK_GROUP_CONTEXT 734 #if __TBB_TASK_PRIORITY 735 if ( my_offloaded_tasks )
736 my_arena->orphan_offloaded_tasks( *
this );
737 my_offloaded_tasks = NULL;
747 #if __TBB_ARENA_OBSERVER 748 my_last_local_observer = 0;
749 my_arena->my_observers.notify_entry_observers( my_last_local_observer,
false );
751 #if __TBB_PREVIEW_RESUMABLE_TASKS 757 #if __TBB_ARENA_OBSERVER 758 my_arena->my_observers.notify_exit_observers( my_last_local_observer,
false );
760 #if __TBB_TASK_PRIORITY 761 if ( my_offloaded_tasks )
762 my_arena->orphan_offloaded_tasks( *
this );
779 #if __TBB_PREVIEW_RESUMABLE_TASKS 780 class resume_task :
public task {
787 if (
s->prepare_resume(my_target)) {
788 s->resume(my_target);
792 prefix().state = task::to_resume;
800 generic_scheduler* co_sched = curr.my_arena->my_co_cache.pop();
807 co_sched->my_arena = curr.my_arena;
810 co_sched->my_dummy_task->prefix().context = co_sched->my_arena->my_default_ctx;
817 void internal_suspend(
void* suspend_callback,
void* user_callback) {
819 __TBB_ASSERT(
s.my_arena_slot->my_scheduler_is_recalled != NULL, NULL);
820 bool is_recalled = *
s.my_arena_slot->my_scheduler_is_recalled;
821 generic_scheduler& target = is_recalled ? *
s.my_arena_slot->my_scheduler :
create_coroutine(
s);
823 generic_scheduler::callback_t callback = {
824 (generic_scheduler::suspend_callback_t)suspend_callback, user_callback, &
s };
825 target.set_post_resume_action(generic_scheduler::PRA_CALLBACK, &callback);
829 void internal_resume(task::suspend_point tag) {
830 generic_scheduler&
s = *
static_cast<generic_scheduler*
>(tag);
831 task* t =
new(&
s.allocate_task(
sizeof(resume_task),
__TBB_CONTEXT_ARG(NULL,
s.my_dummy_task->context()))) resume_task(
s);
837 arena& a = *
s.my_arena;
848 task::suspend_point internal_current_suspend_point() {
860 namespace interface7 {
866 #if __TBB_NUMA_SUPPORT 876 #if __TBB_TASK_GROUP_CONTEXT 877 new_arena->my_default_ctx =
new (
NFS_Allocate(1,
sizeof(task_group_context), NULL) )
880 new_arena->my_default_ctx->capture_fp_settings();
887 m.release(
true,
false );
889 #if __TBB_TASK_GROUP_CONTEXT 892 #if __TBB_TASK_GROUP_CONTEXT || __TBB_NUMA_SUPPORT 894 #if __TBB_NUMA_SUPPORT 895 my_arena->my_numa_binding_observer = tbb::internal::construct_binding_observer(
898 #if __TBB_TASK_GROUP_CONTEXT 911 #if __TBB_NUMA_SUPPORT 912 if(
my_arena->my_numa_binding_observer != NULL ) {
913 tbb::internal::destroy_binding_observer(
my_arena->my_numa_binding_observer);
914 my_arena->my_numa_binding_observer = NULL;
920 #if __TBB_TASK_GROUP_CONTEXT 929 if(
s &&
s->my_arena ) {
935 #if __TBB_TASK_GROUP_CONTEXT 951 #if __TBB_TASK_GROUP_CONTEXT 954 "The task will not be executed because default task_group_context of task_arena is cancelled. Has previously enqueued task thrown an exception?");
959 class delegated_task :
public task {
960 internal::delegate_base & my_delegate;
961 concurrent_monitor & my_monitor;
964 generic_scheduler&
s = *(generic_scheduler*)prefix().owner;
965 __TBB_ASSERT(
s.outermost_level(),
"expected to be enqueued and received on the outermost level");
966 struct outermost_context : internal::no_copy {
968 generic_scheduler &
s;
970 task_group_context * orig_ctx;
971 scheduler_properties orig_props;
972 outermost_context(delegated_task *_t, generic_scheduler &_s)
973 : t(_t),
s(_s), orig_dummy(
s.my_dummy_task), orig_props(
s.my_properties) {
975 #if __TBB_TASK_GROUP_CONTEXT 976 orig_ctx = t->prefix().context;
977 t->prefix().context =
s.my_arena->my_default_ctx;
983 ~outermost_context() {
984 #if __TBB_TASK_GROUP_CONTEXT 986 t->prefix().context = orig_ctx;
989 s.my_properties = orig_props;
990 s.my_dummy_task = orig_dummy;
999 task_prefix& prefix = my_root->prefix();
1000 #if __TBB_PREVIEW_RESUMABLE_TASKS 1001 reference_count old_ref_count = __TBB_FetchAndStoreW(&prefix.ref_count, 1);
1003 if (old_ref_count == internal::abandon_flag + 2) {
1006 tbb::task::resume(prefix.abandoned_scheduler);
1011 my_monitor.notify(*
this);
1014 delegated_task( internal::delegate_base &
d, concurrent_monitor &
s,
task * t )
1015 : my_delegate(
d), my_monitor(
s), my_root(t) {}
1017 bool operator()(uintptr_t ctx)
const {
return (
void*)ctx == (
void*)&my_delegate; }
1025 bool same_arena =
s->my_arena ==
my_arena;
1026 size_t index1 =
s->my_arena_index;
1031 #if __TBB_USE_OPTIONAL_RTTI 1039 internal::delegated_function< graph_funct, void >* deleg_funct =
1040 dynamic_cast< internal::delegated_function< graph_funct, void>*
>(&
d);
1045 (internal::forward< graph_funct >(deleg_funct->my_func)), 0);
1049 concurrent_monitor::thread_context waiter;
1050 #if __TBB_TASK_GROUP_CONTEXT 1052 #if __TBB_FP_CONTEXT 1057 root.prefix().ref_count = 2;
1072 s->local_wait_for_all(root, NULL);
1073 #if TBB_USE_EXCEPTIONS 1086 #if TBB_USE_EXCEPTIONS 1089 TbbRethrowException(pe);
1092 #if __TBB_USE_OPTIONAL_RTTI 1098 context_guard_helper<
false> context_guard;
1100 #if TBB_USE_EXCEPTIONS 1106 #if TBB_USE_EXCEPTIONS 1109 context_guard.restore_default();
1114 exception_container.register_pending_exception();
1116 TbbRethrowException(exception_container.my_exception);
1124 class wait_task :
public task {
1125 binary_semaphore & my_signal;
1129 __TBB_ASSERT(
s->outermost_level(),
"The enqueued task can be processed only on outermost level" );
1130 if (
s->is_worker() ) {
1133 s->my_innermost_running_task =
s->my_dummy_task;
1134 s->local_wait_for_all( *
s->my_dummy_task, NULL );
1135 s->my_innermost_running_task =
this;
1136 }
else s->my_arena->is_out_of_work();
1141 wait_task ( binary_semaphore & sema ) : my_signal(sema) {}
1148 __TBB_ASSERT(
s->my_arena !=
my_arena ||
s->my_arena_index == 0,
"task_arena::wait_until_empty() is not supported within a worker context" );
1152 if( !
s->my_arena_index )
1154 s->wait_until_empty();
1160 s->wait_until_empty();
1162 binary_semaphore waiter;
1175 return s?
int(
s->my_arena_index) : -1;
1178 #if __TBB_TASK_ISOLATION 1183 isolation_guard(
isolation_tag &isolation ) : guarded( isolation ), previous_value( isolation ) {}
1184 ~isolation_guard() {
1185 guarded = previous_value;
1192 __TBB_ASSERT(
s,
"this_task_arena::isolate() needs an initialized scheduler" );
1195 isolation_tag& current_isolation =
s->my_innermost_running_task->prefix().isolation;
1197 isolation_guard guard( current_isolation );
1198 current_isolation = isolation? isolation :
reinterpret_cast<isolation_tag>(&
d);
1211 __TBB_ASSERT( !ta || ta->my_max_concurrency==1, NULL );
1212 return a->my_num_reserved_slots + a->my_max_num_workers;
#define GATHER_STATISTIC(x)
void enqueue_task(task &, intptr_t, FastRandom &)
enqueue a task into starvation-resistance queue
nested_arena_context(generic_scheduler *s, arena *a, size_t slot_index, bool type, bool same)
unsigned my_master_slots
Reserved master slots.
uintptr_t my_aba_epoch
ABA prevention marker.
task is running, and will be destroyed after method execute() completes.
bool commit_wait(thread_context &thr)
Commit wait if event count has not changed; otherwise, cancel wait.
const isolation_tag no_isolation
bool empty(int level)
Checks existence of a task.
unsigned my_max_num_workers
The number of workers requested by the master thread owning the arena.
bool is_worker() const
True if running on a worker thread, false otherwise.
static const intptr_t num_priority_levels
void __TBB_EXPORTED_METHOD internal_enqueue(task &, intptr_t) const
void prepare_wait(thread_context &thr, uintptr_t ctx=0)
prepare wait by inserting 'thr' into the wait queue
void cancel_wait(thread_context &thr)
Cancel the wait. Removes the thread from the wait queue if not removed yet.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id head
static const pool_state_t SNAPSHOT_FULL
At least one task has been offered for stealing since the last snapshot started.
void __TBB_EXPORTED_METHOD internal_attach()
task_group_context * context
Shared context that is used to communicate asynchronous state changes.
unsigned my_num_reserved_slots
The number of reserved slots (can be occupied only by masters).
void *__TBB_EXPORTED_FUNC NFS_Allocate(size_t n_element, size_t element_size, void *hint)
Allocate memory on cache/sector line boundary.
isolation_tag isolation
The tag used for task isolation.
task * my_innermost_running_task
Innermost task whose task::execute() is running. A dummy task on the outermost level.
arena * my_arena
The arena that I own (if master) or am servicing at the moment (if worker)
unsigned my_num_slots
The number of slots in the arena.
__TBB_atomic reference_count ref_count
Reference count used for synchronization.
uintptr_t my_arenas_aba_epoch
ABA prevention marker to assign to newly created arenas.
void __TBB_EXPORTED_METHOD internal_terminate()
void adjust_demand(arena &, int delta)
Request that arena's need in workers should be adjusted.
static int __TBB_EXPORTED_FUNC internal_max_concurrency(const task_arena *)
intptr_t drain()
Destroys all remaining tasks in every lane. Returns the number of destroyed tasks.
unsigned char extra_state
Miscellaneous state that is not directly visible to users, stored as a byte for compactness.
void free_task_pool()
Deallocate task pool that was allocated by means of allocate_task_pool.
static internal::allocate_root_proxy allocate_root()
Returns proxy for overloaded new that allocates a root task.
unsigned char state
A task::state_type, stored as a byte for compactness.
int my_num_workers_requested
The number of workers that are currently requested from the resource manager.
void spin_wait_while_eq(const volatile T &location, U value)
Spin WHILE the value of the variable is equal to a given value.
Class representing where mail is put.
task object is freshly allocated or recycled.
static const unsigned ref_external
Reference increment values for externals and workers.
T1 atomic_update(tbb::atomic< T1 > &dst, T2 newValue, Pred compare)
Atomically replaces value of dst with newValue if they satisfy condition of compare predicate...
Base class for types that should not be copied or assigned.
virtual void local_wait_for_all(task &parent, task *child)=0
task * my_dummy_task
Fake root task created by slave threads.
generic_scheduler & my_scheduler
#define __TBB_CONTEXT_ARG(arg1, context)
task * parent() const
task on whose behalf this task is working, or NULL if this is a root.
uintptr_t my_version_and_traits
Version for run-time checks and behavioral traits of the context.
static int allocation_size(unsigned num_slots)
void process(generic_scheduler &)
Registers the worker with the arena and enters TBB scheduler dispatch loop.
bool type
Indicates that a scheduler acts as a master or a worker.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id parent
tbb::atomic< uintptr_t > my_pool_state
Current task pool state and estimate of available tasks amount.
void __TBB_EXPORTED_METHOD internal_wait() const
static int __TBB_EXPORTED_FUNC internal_current_slot()
static generic_scheduler * local_scheduler_if_initialized()
void make_critical(task &t)
static generic_scheduler * local_scheduler()
Obtain the thread-local instance of the TBB scheduler.
scheduler_state my_orig_state
bool is_recall_requested() const
Check if the recall is requested by the market.
void __TBB_store_with_release(volatile T &location, V value)
intptr_t my_version_and_traits
Special settings.
static bool is_set(generic_scheduler *s)
Used to check validity of the local scheduler TLS contents.
int my_max_concurrency
Concurrency level for deferred initialization.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id __itt_relation __itt_id ITT_FORMAT p const wchar_t int ITT_FORMAT __itt_group_mark d int
unsigned num_workers_active() const
The number of workers active in the arena.
market * my_market
The market that owns this arena.
Base class for user-defined tasks.
cpu_ctl_env my_cpu_ctl_env
FPU control settings of arena's master thread captured at the moment of arena instantiation.
static generic_scheduler * create_worker(market &m, size_t index, bool geniune)
Initialize a scheduler for a worker thread.
concurrent_monitor my_exit_monitors
Waiting object for master threads that cannot join the arena.
static market & global_market(bool is_public, unsigned max_num_workers=0, size_t stack_size=0)
Factory method creating new market object.
void mimic_outermost_level(arena *a, bool type)
static const int priority_critical
size_t occupy_free_slot(generic_scheduler &s)
Tries to occupy a slot in the arena. On success, returns the slot index; if no slot is available...
void initialize(unsigned n_lanes)
static const int automatic
Typedef for number of threads that is automatic.
scheduler_properties my_properties
void attach_mailbox(affinity_id id)
intptr_t isolation_tag
A tag for task isolation.
static unsigned default_num_threads()
unsigned my_num_workers_allotted
The number of workers that have been marked out by the resource manager to service the arena...
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p sync_releasing
market * my_market
The market I am in.
void const char const char int ITT_FORMAT __itt_group_sync p
void construct()
Construct *this as a mailbox from zeroed memory.
size_t occupy_free_slot_in_range(generic_scheduler &s, size_t lower, size_t upper)
Tries to occupy a slot in the specified range.
mail_outbox & mailbox(affinity_id id)
Get reference to mailbox corresponding to given affinity_id.
static const pool_state_t SNAPSHOT_EMPTY
No tasks to steal since last snapshot was taken.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d
arena_slot * my_arena_slot
Pointer to the slot in the arena we own at the moment.
void notify_one()
Notify one thread about the event.
static generic_scheduler * local_scheduler_weak()
bool has_enqueued_tasks()
Check for the presence of enqueued tasks at all priority levels.
A functor that spawns a task.
unsigned short affinity_id
An id as used for specifying affinity.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task * task
internal::tbb_exception_ptr exception_container_type
void set_is_idle(bool value)
Indicate whether thread that reads this mailbox is idle.
#define __TBB_ASSERT_EX(predicate, comment)
"Extended" version is useful to suppress warnings if a variable is only used with an assert ...
void __TBB_EXPORTED_METHOD internal_initialize()
void free_arena()
Completes arena shutdown, destructs and deallocates it.
void __TBB_EXPORTED_FUNC NFS_Free(void *)
Free memory allocated by NFS_Allocate.
#define __TBB_ISOLATION_ARG(arg1, isolation)
const size_t NFS_MaxLineSize
Compile-time constant that is upper bound on cache line/sector size.
bool is_out_of_work()
Check if there is job anywhere in arena.
unsigned hint_for_pop
Hint provided for operations with the container of starvation-resistant tasks.
arena(market &, unsigned max_num_workers, unsigned num_reserved_slots)
Constructor.
atomic< unsigned > my_references
Reference counter for the arena.
task_group_context * my_orig_ctx
intptr_t drain()
Drain the mailbox.
static const size_t out_of_arena
void __TBB_EXPORTED_METHOD internal_execute(delegate_base &) const
task_stream< num_priority_levels > my_task_stream
Task pool for the tasks scheduled via task::enqueue() method.
void create_coroutine(coroutine_type &c, size_t stack_size, void *arg)
void __TBB_EXPORTED_FUNC isolate_within_arena(delegate_base &d, intptr_t isolation=0)
task is in ready pool, or is going to be put there, or was just taken off.
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id __itt_relation __itt_id tail
void const char const char int ITT_FORMAT __itt_group_sync s
bool outermost
Indicates that a scheduler is on outermost level.
#define ITT_SYNC_CREATE(obj, type, name)
static arena * create_arena(int num_slots, int num_reserved_slots, size_t stack_size)
Creates an arena object.
Used to form groups of tasks.
A fast random number generator.
Work stealing task scheduler.
generic_scheduler * my_scheduler
Scheduler of the thread attached to the slot.
#define __TBB_ASSERT(predicate, comment)
No-op version of __TBB_ASSERT.
void attach_arena(arena *, size_t index, bool is_master)
size_t my_arena_index
Index of the arena slot the scheduler occupies now, or occupied last time.
#define ITT_NOTIFY(name, obj)
internal::task_prefix & prefix(internal::version_tag *=NULL) const
Get reference to corresponding task_prefix.
T __TBB_load_relaxed(const volatile T &location)
int current_thread_index()
Returns the index, aka slot number, of the calling thread in its current arena.
static bool occupy_slot(generic_scheduler *&slot, generic_scheduler &s)
state_type state() const
Current execution state.
atomic< T > & as_atomic(T &t)
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type type
bool release(bool is_public, bool blocking_terminate)
Decrements market's refcount and destroys it in the end.
T __TBB_load_with_acquire(const volatile T &location)
size_t __TBB_EXPORTED_FUNC NFS_GetLineSize()
Cache/sector line size.
Set if ref_count might be changed by another thread. Used for debugging.
intptr_t reference_count
A reference count.
bool is_critical(task &t)
static void assume_scheduler(generic_scheduler *s)
Temporarily set TLS slot to the given scheduler.
task_group_context * my_context
default context of the arena
bool is_idle_state(bool value) const
Indicate whether thread that reads this mailbox is idle.
internal::arena * my_arena
NULL if not currently initialized.
static int unsigned num_arena_slots(unsigned num_slots)
void restore_priority_if_need()
If enqueued tasks found, restore arena priority and task presence status.
static void one_time_init()
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_string_handle unsigned long long ITT_FORMAT lu const __itt_domain __itt_id __itt_string_handle __itt_metadata_type size_t void ITT_FORMAT p const __itt_domain __itt_id __itt_string_handle const wchar_t size_t ITT_FORMAT lu const __itt_domain __itt_id __itt_relation __itt_id ITT_FORMAT p const wchar_t int ITT_FORMAT __itt_group_mark d __itt_event ITT_FORMAT __itt_group_mark d void const wchar_t const wchar_t int ITT_FORMAT __itt_group_sync __itt_group_fsync x void const wchar_t int const wchar_t int int ITT_FORMAT __itt_group_sync __itt_group_fsync x void ITT_FORMAT __itt_group_sync __itt_group_fsync p void ITT_FORMAT __itt_group_sync __itt_group_fsync p void size_t ITT_FORMAT lu no args __itt_obj_prop_t __itt_obj_state_t ITT_FORMAT d const char ITT_FORMAT s const char ITT_FORMAT s __itt_frame ITT_FORMAT p __itt_counter ITT_FORMAT p __itt_counter unsigned long long ITT_FORMAT lu __itt_counter unsigned long long ITT_FORMAT lu __itt_counter __itt_clock_domain unsigned long long void ITT_FORMAT p const wchar_t ITT_FORMAT S __itt_mark_type const wchar_t ITT_FORMAT S __itt_mark_type const char ITT_FORMAT s __itt_mark_type ITT_FORMAT d __itt_caller ITT_FORMAT p __itt_caller ITT_FORMAT p no args const __itt_domain __itt_clock_domain unsigned long long __itt_id ITT_FORMAT lu const __itt_domain __itt_clock_domain unsigned long long __itt_id __itt_id void ITT_FORMAT p const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_clock_domain unsigned long long __itt_id __itt_string_handle __itt_scope scope
static arena & allocate_arena(market &, unsigned num_slots, unsigned num_reserved_slots)
Allocate an instance of arena.
void on_thread_leaving()
Notification that worker or master leaves its arena.
void nested_arena_entry(arena *, size_t)
atomic< unsigned > my_limit
The maximal number of currently busy slots.
#define __TBB_CONTEXT_ARG1(context)