StarPU Handbook
starpu_sched_component.h
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1 /* StarPU --- Runtime system for heterogeneous multicore architectures.
2  *
3  * Copyright (C) 2017 Arthur Chevalier
4  * Copyright (C) 2013,2014,2017 Inria
5  * Copyright (C) 2014,2015,2017,2019 CNRS
6  * Copyright (C) 2014-2019 Université de Bordeaux
7  * Copyright (C) 2013 Simon Archipoff
8  *
9  * StarPU is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or (at
12  * your option) any later version.
13  *
14  * StarPU is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
17  *
18  * See the GNU Lesser General Public License in COPYING.LGPL for more details.
19  */
20 
21 #ifndef __STARPU_SCHED_COMPONENT_H__
22 #define __STARPU_SCHED_COMPONENT_H__
23 
24 #include <starpu.h>
25 
26 #ifdef STARPU_HAVE_HWLOC
27 #include <hwloc.h>
28 #endif
29 
30 #ifdef __cplusplus
31 extern "C"
32 {
33 #endif
34 
44 {
49 };
50 
54 #define STARPU_SCHED_COMPONENT_IS_HOMOGENEOUS(component) ((component)->properties & STARPU_SCHED_COMPONENT_HOMOGENEOUS)
55 
59 #define STARPU_SCHED_COMPONENT_IS_SINGLE_MEMORY_NODE(component) ((component)->properties & STARPU_SCHED_COMPONENT_SINGLE_MEMORY_NODE)
60 
70 {
74  struct starpu_bitmap *workers;
81  struct starpu_bitmap *workers_in_ctx;
83  void *data;
84  char *name;
86  unsigned nchildren;
90  unsigned nparents;
93 
95  void (*add_child)(struct starpu_sched_component *component, struct starpu_sched_component *child);
97  void (*remove_child)(struct starpu_sched_component *component, struct starpu_sched_component *child);
98  void (*add_parent)(struct starpu_sched_component *component, struct starpu_sched_component *parent);
99  void (*remove_parent)(struct starpu_sched_component *component, struct starpu_sched_component *parent);
100 
111  int (*push_task)(struct starpu_sched_component *, struct starpu_task *);
112 
119  struct starpu_task *(*pull_task)(struct starpu_sched_component *from, struct starpu_sched_component *to);
120 
129  int (*can_push)(struct starpu_sched_component *from, struct starpu_sched_component *to);
130 
141  int (*can_pull)(struct starpu_sched_component *component);
142 
143  int (*notify)(struct starpu_sched_component* component, int message_ID, void* arg);
144 
150  double (*estimated_load)(struct starpu_sched_component *component);
155  double (*estimated_end)(struct starpu_sched_component *component);
156 
160  void (*deinit_data)(struct starpu_sched_component *component);
161 
165  void (*notify_change_workers)(struct starpu_sched_component *component);
166  int properties;
167 
168 #ifdef STARPU_HAVE_HWLOC
169 
175  hwloc_obj_t obj;
176 #else
177  void *obj;
178 #endif
179 };
180 
185 {
193  struct starpu_bitmap *workers;
197  unsigned sched_ctx_id;
202  starpu_pthread_mutex_t lock;
203 };
204 
205 void starpu_initialize_prio_center_policy(unsigned sched_ctx_id);
206 
220 struct starpu_sched_tree *starpu_sched_tree_get(unsigned sched_ctx_id);
232 int starpu_sched_tree_push_task(struct starpu_task *task);
237 
242 
247 
248 struct starpu_task* starpu_sched_component_pump_to(struct starpu_sched_component *component, struct starpu_sched_component *to, int* success);
249 struct starpu_task* starpu_sched_component_pump_downstream(struct starpu_sched_component *component, int* success);
250 int starpu_sched_component_send_can_push_to_parents(struct starpu_sched_component * component);
254 void starpu_sched_tree_add_workers(unsigned sched_ctx_id, int *workerids, unsigned nworkers);
258 void starpu_sched_tree_remove_workers(unsigned sched_ctx_id, int *workerids, unsigned nworkers);
259 
264 
272 typedef struct starpu_sched_component * (*starpu_sched_component_create_t)(struct starpu_sched_tree *tree, void *data);
273 
285 
296 
297 void starpu_sched_component_add_child(struct starpu_sched_component* component, struct starpu_sched_component * child);
298 
303 
310 int STARPU_WARN_UNUSED_RESULT starpu_sched_component_execute_preds(struct starpu_sched_component *component, struct starpu_task *task, double *length);
311 
315 double starpu_sched_component_transfer_length(struct starpu_sched_component *component, struct starpu_task *task);
316 
317 void starpu_sched_component_prefetch_on_node(struct starpu_sched_component *component, struct starpu_task *task);
318 
329 struct starpu_sched_component *starpu_sched_component_worker_get(unsigned sched_ctx, int workerid);
330 struct starpu_sched_component *starpu_sched_component_worker_new(unsigned sched_ctx, int workerid);
331 
336 
341 
346 
351 
356 
361 void starpu_sched_component_worker_pre_exec_hook(struct starpu_task *task, unsigned sched_ctx_id);
362 
366 void starpu_sched_component_worker_post_exec_hook(struct starpu_task *task, unsigned sched_ctx_id);
367 
379 
384 
389 
394 
400 
405 
413 double starpu_sched_component_estimated_end_min_add(struct starpu_sched_component * component, double exp_len);
414 
419 
421 {
422  unsigned ntasks_threshold;
423  double exp_len_threshold;
424  int ready;
425 };
426 
433 
438 
447 {
448  unsigned ntasks_threshold;
449  double exp_len_threshold;
450  int ready;
451 };
452 struct starpu_sched_component *starpu_sched_component_prio_create(struct starpu_sched_tree *tree, struct starpu_sched_component_prio_data *prio_data) STARPU_ATTRIBUTE_MALLOC;
453 int starpu_sched_component_is_prio(struct starpu_sched_component *component);
454 
466 
471 
476 
488 
493 
501 struct starpu_sched_component *starpu_sched_component_eager_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC;
502 int starpu_sched_component_is_eager(struct starpu_sched_component *);
503 
511 struct starpu_sched_component *starpu_sched_component_eager_prio_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC;
512 int starpu_sched_component_is_eager_prio(struct starpu_sched_component *);
513 
521 struct starpu_sched_component *starpu_sched_component_eager_calibration_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC;
522 int starpu_sched_component_is_eager_calibration(struct starpu_sched_component *);
523 
532 {
533  double alpha;
534  double beta;
535  double _gamma;
536  double idle_power;
537 };
538 
545 
546 int starpu_sched_component_is_mct(struct starpu_sched_component *component);
547 
555 struct starpu_sched_component *starpu_sched_component_heft_create(struct starpu_sched_tree *tree, struct starpu_sched_component_mct_data *mct_data) STARPU_ATTRIBUTE_MALLOC;
556 int starpu_sched_component_is_heft(struct starpu_sched_component *component);
557 
566 {
568  unsigned batch;
569 };
570 
571 struct starpu_sched_component * starpu_sched_component_heteroprio_create(struct starpu_sched_tree *tree, struct starpu_sched_component_heteroprio_data * params) STARPU_ATTRIBUTE_MALLOC;
572 int starpu_sched_component_is_heteroprio(struct starpu_sched_component *component);
573 
588 
597 {
598  struct starpu_sched_component *calibrator_component;
599  struct starpu_sched_component *no_perfmodel_component;
600  struct starpu_sched_component *perfmodel_component;
601 };
602 struct starpu_sched_component *starpu_sched_component_perfmodel_select_create(struct starpu_sched_tree *tree, struct starpu_sched_component_perfmodel_select_data *perfmodel_select_data) STARPU_ATTRIBUTE_MALLOC;
603 int starpu_sched_component_is_perfmodel_select(struct starpu_sched_component *component);
604 
612 struct starpu_sched_component * starpu_sched_component_stage_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC;
613 int starpu_sched_component_is_stage(struct starpu_sched_component *component);
614 
622 struct starpu_sched_component * starpu_sched_component_userchoice_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC;
623 int starpu_sched_component_is_userchoice(struct starpu_sched_component *component);
624 
635 struct starpu_sched_component_composed_recipe;
636 
640 struct starpu_sched_component_composed_recipe *starpu_sched_component_composed_recipe_create(void) STARPU_ATTRIBUTE_MALLOC;
641 
645 struct starpu_sched_component_composed_recipe *starpu_sched_component_composed_recipe_create_singleton(struct starpu_sched_component *(*create_component)(struct starpu_sched_tree *tree, void *arg), void *arg) STARPU_ATTRIBUTE_MALLOC;
646 
650 void starpu_sched_component_composed_recipe_add(struct starpu_sched_component_composed_recipe *recipe, struct starpu_sched_component *(*create_component)(struct starpu_sched_tree *tree, void *arg), void *arg);
651 
655 void starpu_sched_component_composed_recipe_destroy(struct starpu_sched_component_composed_recipe *);
656 
661 struct starpu_sched_component *starpu_sched_component_composed_component_create(struct starpu_sched_tree *tree, struct starpu_sched_component_composed_recipe *recipe) STARPU_ATTRIBUTE_MALLOC;
662 
663 #ifdef STARPU_HAVE_HWLOC
664 
669 {
674  struct starpu_sched_component_composed_recipe *hwloc_machine_composed_sched_component;
678  struct starpu_sched_component_composed_recipe *hwloc_component_composed_sched_component;
682  struct starpu_sched_component_composed_recipe *hwloc_socket_composed_sched_component;
686  struct starpu_sched_component_composed_recipe *hwloc_cache_composed_sched_component;
687 
692  struct starpu_sched_component_composed_recipe *(*worker_composed_sched_component)(enum starpu_worker_archtype archtype);
700 };
701 
702 
707 #endif /* STARPU_HAVE_HWLOC */
708 
714 #define STARPU_SCHED_SIMPLE_DECIDE_MASK (3<<0)
715 
719 #define STARPU_SCHED_SIMPLE_DECIDE_WORKERS (1<<0)
720 
724 #define STARPU_SCHED_SIMPLE_DECIDE_MEMNODES (2<<0)
725 
729 #define STARPU_SCHED_SIMPLE_DECIDE_ARCHS (3<<0)
730 
735 #define STARPU_SCHED_SIMPLE_PERFMODEL (1<<4)
736 
740 #define STARPU_SCHED_SIMPLE_IMPL (1<<5)
741 
747 #define STARPU_SCHED_SIMPLE_FIFO_ABOVE (1<<6)
748 
752 #define STARPU_SCHED_SIMPLE_FIFO_ABOVE_PRIO (1<<7)
753 
759 #define STARPU_SCHED_SIMPLE_FIFOS_BELOW (1<<8)
760 
764 #define STARPU_SCHED_SIMPLE_FIFOS_BELOW_PRIO (1<<9)
765 
769 #define STARPU_SCHED_SIMPLE_FIFOS_BELOW_READY (1<<10)
770 
774 #define STARPU_SCHED_SIMPLE_WS_BELOW (1<<11)
775 
779 #define STARPU_SCHED_SIMPLE_COMBINED_WORKERS (1<<12)
780 
788 void starpu_sched_component_initialize_simple_scheduler(starpu_sched_component_create_t create_decision_component, void *data, unsigned flags, unsigned sched_ctx_id);
789 
802 void starpu_sched_component_initialize_simple_schedulers(unsigned sched_ctx_id, unsigned ndecisions, ...);
803 
806 #define STARPU_COMPONENT_MUTEX_LOCK(m) \
807 do \
808 { \
809  const int _relaxed_state = starpu_worker_get_relax_state(); \
810  if (!_relaxed_state) \
811  starpu_worker_relax_on(); \
812  STARPU_PTHREAD_MUTEX_LOCK((m)); \
813  if (!_relaxed_state) \
814  starpu_worker_relax_off(); \
815 } \
816 while(0)
817 
818 #define STARPU_COMPONENT_MUTEX_TRYLOCK(m) STARPU_PTHREAD_MUTEX_TRYLOCK((m))
819 
820 #define STARPU_COMPONENT_MUTEX_UNLOCK(m) STARPU_PTHREAD_MUTEX_UNLOCK((m))
821 
824 #ifdef __cplusplus
825 }
826 #endif
827 
828 #endif /* __STARPU_SCHED_COMPONENT_H__ */
STARPU_SCHED_COMPONENT_HOMOGENEOUS
Definition: starpu_sched_component.h:46
starpu_sched_component_is_fifo
int starpu_sched_component_is_fifo(struct starpu_sched_component *component)
starpu_task::workerids
uint32_t * workerids
Definition: starpu_task.h:984
starpu_sched_component_execute_preds
int STARPU_WARN_UNUSED_RESULT starpu_sched_component_execute_preds(struct starpu_sched_component *component, struct starpu_task *task, double *length)
starpu_sched_component_composed_recipe_create
struct starpu_sched_component_composed_recipe * starpu_sched_component_composed_recipe_create(void) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component_can_push
int starpu_sched_component_can_push(struct starpu_sched_component *component, struct starpu_sched_component *to)
starpu_sched_component::add_child
void(* add_child)(struct starpu_sched_component *component, struct starpu_sched_component *child)
Definition: starpu_sched_component.h:95
starpu_task::sched_ctx
unsigned sched_ctx
Definition: starpu_task.h:1061
starpu_sched_component::nparents
unsigned nparents
Definition: starpu_sched_component.h:90
starpu_sched_component::tree
struct starpu_sched_tree * tree
Definition: starpu_sched_component.h:72
starpu_sched_component_best_implementation_create
struct starpu_sched_component * starpu_sched_component_best_implementation_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component_connect
void starpu_sched_component_connect(struct starpu_sched_component *parent, struct starpu_sched_component *child)
starpu_sched_component::workers_in_ctx
struct starpu_bitmap * workers_in_ctx
Definition: starpu_sched_component.h:81
starpu_sched_component::push_task
int(* push_task)(struct starpu_sched_component *, struct starpu_task *)
Definition: starpu_sched_component.h:111
starpu_sched_component_prio_data
Definition: starpu_sched_component.h:446
starpu_sched_component_make_scheduler
struct starpu_sched_tree * starpu_sched_component_make_scheduler(unsigned sched_ctx_id, struct starpu_sched_component_specs s)
starpu_sched_tree_update_workers
void starpu_sched_tree_update_workers(struct starpu_sched_tree *t)
starpu_sched_component_work_stealing_create
struct starpu_sched_component * starpu_sched_component_work_stealing_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component_destroy_rec
void starpu_sched_component_destroy_rec(struct starpu_sched_component *component)
starpu_sched_component::nchildren
unsigned nchildren
Definition: starpu_sched_component.h:86
starpu_sched_component_estimated_end_min
double starpu_sched_component_estimated_end_min(struct starpu_sched_component *component)
starpu_sched_component_initialize_simple_schedulers
void starpu_sched_component_initialize_simple_schedulers(unsigned sched_ctx_id, unsigned ndecisions,...)
starpu_sched_tree_pop_task
struct starpu_task * starpu_sched_tree_pop_task(unsigned sched_ctx)
starpu_sched_component_composed_component_create
struct starpu_sched_component * starpu_sched_component_composed_component_create(struct starpu_sched_tree *tree, struct starpu_sched_component_composed_recipe *recipe) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component::estimated_load
double(* estimated_load)(struct starpu_sched_component *component)
Definition: starpu_sched_component.h:150
starpu_sched_component_estimated_load
double starpu_sched_component_estimated_load(struct starpu_sched_component *component)
starpu_sched_component::deinit_data
void(* deinit_data)(struct starpu_sched_component *component)
Definition: starpu_sched_component.h:160
starpu_sched_component_properties
starpu_sched_component_properties
Definition: starpu_sched_component.h:43
starpu_sched_component_specs::hwloc_socket_composed_sched_component
struct starpu_sched_component_composed_recipe * hwloc_socket_composed_sched_component
Definition: starpu_sched_component.h:682
starpu_sched_component_worker_get
struct starpu_sched_component * starpu_sched_component_worker_get(unsigned sched_ctx, int workerid)
starpu_sched_component_is_work_stealing
int starpu_sched_component_is_work_stealing(struct starpu_sched_component *component)
starpu_sched_component_is_random
int starpu_sched_component_is_random(struct starpu_sched_component *)
STARPU_SCHED_COMPONENT_SINGLE_MEMORY_NODE
Definition: starpu_sched_component.h:48
starpu_sched_component_composed_recipe_destroy
void starpu_sched_component_composed_recipe_destroy(struct starpu_sched_component_composed_recipe *)
starpu_sched_component_specs::hwloc_component_composed_sched_component
struct starpu_sched_component_composed_recipe * hwloc_component_composed_sched_component
Definition: starpu_sched_component.h:678
starpu_sched_component_random_create
struct starpu_sched_component * starpu_sched_component_random_create(struct starpu_sched_tree *tree, void *arg) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component_destroy
void starpu_sched_component_destroy(struct starpu_sched_component *component)
starpu_sched_component_specs
Definition: starpu_sched_component.h:668
starpu.h
starpu_sched_component_pull_task
struct starpu_task * starpu_sched_component_pull_task(struct starpu_sched_component *from, struct starpu_sched_component *to)
starpu_sched_component::parents
struct starpu_sched_component ** parents
Definition: starpu_sched_component.h:92
starpu_sched_component_is_worker
int starpu_sched_component_is_worker(struct starpu_sched_component *component)
starpu_sched_tree_add_workers
void starpu_sched_tree_add_workers(unsigned sched_ctx_id, int *workerids, unsigned nworkers)
starpu_sched_component_fifo_create
struct starpu_sched_component * starpu_sched_component_fifo_create(struct starpu_sched_tree *tree, struct starpu_sched_component_fifo_data *fifo_data) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component_estimated_end_min_add
double starpu_sched_component_estimated_end_min_add(struct starpu_sched_component *component, double exp_len)
starpu_sched_component::obj
hwloc_obj_t obj
Definition: starpu_sched_component.h:175
starpu_task
Definition: starpu_task.h:548
starpu_sched_component::children
struct starpu_sched_component ** children
Definition: starpu_sched_component.h:88
starpu_sched_component
Definition: starpu_sched_component.h:69
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struct starpu_sched_component * starpu_sched_component_create(struct starpu_sched_tree *tree, const char *name) STARPU_ATTRIBUTE_MALLOC
starpu_sched_component::remove_child
void(* remove_child)(struct starpu_sched_component *component, struct starpu_sched_component *child)
Definition: starpu_sched_component.h:97
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struct starpu_sched_component_composed_recipe * hwloc_cache_composed_sched_component
Definition: starpu_sched_component.h:686
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int starpu_sched_component_can_pull(struct starpu_sched_component *component)
starpu_sched_component_transfer_length
double starpu_sched_component_transfer_length(struct starpu_sched_component *component, struct starpu_task *task)
starpu_sched_component::can_pull
int(* can_pull)(struct starpu_sched_component *component)
Definition: starpu_sched_component.h:141
starpu_sched_component::workers
struct starpu_bitmap * workers
Definition: starpu_sched_component.h:74
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void starpu_sched_component_worker_pre_exec_hook(struct starpu_task *task, unsigned sched_ctx_id)
starpu_sched_component_parents_pull_task
struct starpu_task * starpu_sched_component_parents_pull_task(struct starpu_sched_component *component, struct starpu_sched_component *to)
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int starpu_sched_component_push_task(struct starpu_sched_component *from, struct starpu_sched_component *to, struct starpu_task *task)
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void starpu_sched_tree_remove_workers(unsigned sched_ctx_id, int *workerids, unsigned nworkers)
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void starpu_sched_component_composed_recipe_add(struct starpu_sched_component_composed_recipe *recipe, struct starpu_sched_component *(*create_component)(struct starpu_sched_tree *tree, void *arg), void *arg)
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struct starpu_sched_component * starpu_sched_component_mct_create(struct starpu_sched_tree *tree, struct starpu_sched_component_mct_data *mct_data) STARPU_ATTRIBUTE_MALLOC
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struct starpu_sched_component * starpu_sched_component_parallel_worker_create(struct starpu_sched_tree *tree, unsigned nworkers, unsigned *workers)
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double starpu_sched_component_estimated_end_average(struct starpu_sched_component *component)
starpu_sched_tree::lock
starpu_pthread_mutex_t lock
Definition: starpu_sched_component.h:202
starpu_sched_component_is_simple_worker
int starpu_sched_component_is_simple_worker(struct starpu_sched_component *component)
starpu_sched_component_composed_recipe_create_singleton
struct starpu_sched_component_composed_recipe * starpu_sched_component_composed_recipe_create_singleton(struct starpu_sched_component *(*create_component)(struct starpu_sched_tree *tree, void *arg), void *arg) STARPU_ATTRIBUTE_MALLOC
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Definition: starpu_sched_component.h:531
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int mix_heterogeneous_workers
Definition: starpu_sched_component.h:699
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Definition: starpu_sched_component.h:596
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struct starpu_sched_component_composed_recipe * hwloc_machine_composed_sched_component
Definition: starpu_sched_component.h:674
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Definition: starpu_worker.h:61
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void starpu_sched_tree_destroy(struct starpu_sched_tree *tree)
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Definition: starpu_sched_component.h:193
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Definition: starpu_sched_component.h:184
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int starpu_sched_component_can_execute_task(struct starpu_sched_component *component, struct starpu_task *task)
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Definition: starpu_sched_component.h:420
starpu_sched_component::estimated_end
double(* estimated_end)(struct starpu_sched_component *component)
Definition: starpu_sched_component.h:155
starpu_sched_tree_update_workers_in_ctx
void starpu_sched_tree_update_workers_in_ctx(struct starpu_sched_tree *t)
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struct starpu_sched_tree * starpu_sched_tree_create(unsigned sched_ctx_id) STARPU_ATTRIBUTE_MALLOC
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struct starpu_sched_component * root
Definition: starpu_sched_component.h:189
starpu_sched_component_can_pull_all
int starpu_sched_component_can_pull_all(struct starpu_sched_component *component)
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Definition: starpu_sched_component.h:197
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void(* notify_change_workers)(struct starpu_sched_component *component)
Definition: starpu_sched_component.h:165
starpu_sched_component_is_combined_worker
int starpu_sched_component_is_combined_worker(struct starpu_sched_component *component)
starpu_sched_component_heteroprio_data
Definition: starpu_sched_component.h:565
STARPU_ATTRIBUTE_MALLOC
#define STARPU_ATTRIBUTE_MALLOC
Definition: starpu_util.h:114
starpu_sched_component::can_push
int(* can_push)(struct starpu_sched_component *from, struct starpu_sched_component *to)
Definition: starpu_sched_component.h:129
starpu_sched_component::data
void * data
Definition: starpu_sched_component.h:83