StarPU Handbook - StarPU Language Bindings
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sc_hypervisor_policy.h
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1/* StarPU --- Runtime system for heterogeneous multicore architectures.
2 *
3 * Copyright (C) 2010-2023 Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
4 *
5 * StarPU is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License as published by
7 * the Free Software Foundation; either version 2.1 of the License, or (at
8 * your option) any later version.
9 *
10 * StarPU is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 *
14 * See the GNU Lesser General Public License in COPYING.LGPL for more details.
15 */
16
17#ifndef SC_HYPERVISOR_POLICY_H
18#define SC_HYPERVISOR_POLICY_H
19
20#include <sc_hypervisor.h>
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
31#define HYPERVISOR_REDIM_SAMPLE 0.02
32#define HYPERVISOR_START_REDIM_SAMPLE 0.1
33#define SC_NOTHING 0
34#define SC_IDLE 1
35#define SC_SPEED 2
36
38{
39 unsigned ncpus;
40 unsigned ncuda;
41 unsigned nw;
42};
43
49{
54
58 uint32_t footprint;
59
63 unsigned sched_ctx_id;
64
68 unsigned long n;
69
73 size_t data_size;
74
79};
80
84void sc_hypervisor_policy_add_task_to_pool(struct starpu_codelet *cl, unsigned sched_ctx, uint32_t footprint, struct sc_hypervisor_policy_task_pool **task_pools, size_t data_size);
85
90
95
99void sc_hypervisor_get_tasks_times(int nw, int nt, double times[nw][nt], int *workers, unsigned size_ctxs, struct sc_hypervisor_policy_task_pool *task_pools);
100
104unsigned sc_hypervisor_find_lowest_prio_sched_ctx(unsigned req_sched_ctx, int nworkers_to_move);
105
109int *sc_hypervisor_get_idlest_workers(unsigned sched_ctx, int *nworkers, enum starpu_worker_archtype arch);
110
114int *sc_hypervisor_get_idlest_workers_in_list(int *start, int *workers, int nall_workers, int *nworkers, enum starpu_worker_archtype arch);
115
120
124int sc_hypervisor_compute_nworkers_to_move(unsigned req_sched_ctx);
125
129unsigned sc_hypervisor_policy_resize(unsigned sender_sched_ctx, unsigned receiver_sched_ctx, unsigned force_resize, unsigned now);
130
134unsigned sc_hypervisor_policy_resize_to_unknown_receiver(unsigned sender_sched_ctx, unsigned now);
135
140
145
150
154double sc_hypervisor_get_speed_per_worker(struct sc_hypervisor_wrapper *sc_w, unsigned worker);
155
160
165
170
175
180
185
190
194unsigned sc_hypervisor_criteria_fulfilled(unsigned sched_ctx, int worker);
195
199unsigned sc_hypervisor_check_idle(unsigned sched_ctx, int worker);
200
204unsigned sc_hypervisor_check_speed_gap_btw_ctxs(unsigned *sched_ctxs, int nsched_ctxs, int *workers, int nworkers);
205
209unsigned sc_hypervisor_check_speed_gap_btw_ctxs_on_level(int level, int *workers_in, int nworkers_in, unsigned father_sched_ctx_id, unsigned **sched_ctxs, int *nsched_ctxs);
210
215
219struct types_of_workers *sc_hypervisor_get_types_of_workers(int *workers, unsigned nworkers);
220
223#ifdef __cplusplus
224}
225#endif
226
227#endif
Definition starpu_task.h:338
Definition starpu_task.h:683
struct sc_hypervisor_policy_task_pool * next
Definition sc_hypervisor_policy.h:78
unsigned sched_ctx_id
Definition sc_hypervisor_policy.h:63
uint32_t footprint
Definition sc_hypervisor_policy.h:58
size_t data_size
Definition sc_hypervisor_policy.h:73
struct starpu_codelet * cl
Definition sc_hypervisor_policy.h:53
unsigned long n
Definition sc_hypervisor_policy.h:68
struct types_of_workers * sc_hypervisor_get_types_of_workers(int *workers, unsigned nworkers)
unsigned sc_hypervisor_criteria_fulfilled(unsigned sched_ctx, int worker)
int * sc_hypervisor_get_idlest_workers(unsigned sched_ctx, int *nworkers, enum starpu_worker_archtype arch)
double sc_hypervisor_get_slowest_ctx_exec_time(void)
double sc_hypervisor_get_speed_per_worker_type(struct sc_hypervisor_wrapper *sc_w, enum starpu_worker_archtype arch)
unsigned sc_hypervisor_get_index_for_arch(enum starpu_worker_archtype arch, struct types_of_workers *tw)
void sc_hypervisor_check_if_consider_max(struct types_of_workers *tw)
void sc_hypervisor_group_workers_by_type(struct types_of_workers *tw, int *total_nw)
unsigned sc_hypervisor_find_lowest_prio_sched_ctx(unsigned req_sched_ctx, int nworkers_to_move)
int sc_hypervisor_get_movable_nworkers(struct sc_hypervisor_policy_config *config, unsigned sched_ctx, enum starpu_worker_archtype arch)
void sc_hypervisor_policy_add_task_to_pool(struct starpu_codelet *cl, unsigned sched_ctx, uint32_t footprint, struct sc_hypervisor_policy_task_pool **task_pools, size_t data_size)
double sc_hypervisor_get_avg_speed(enum starpu_worker_archtype arch)
enum starpu_worker_archtype sc_hypervisor_get_arch_for_index(unsigned w, struct types_of_workers *tw)
unsigned sc_hypervisor_get_resize_criteria(void)
unsigned sc_hypervisor_check_speed_gap_btw_ctxs(unsigned *sched_ctxs, int nsched_ctxs, int *workers, int nworkers)
unsigned sc_hypervisor_policy_resize(unsigned sender_sched_ctx, unsigned receiver_sched_ctx, unsigned force_resize, unsigned now)
double sc_hypervisor_get_ctx_speed(struct sc_hypervisor_wrapper *sc_w)
unsigned sc_hypervisor_check_speed_gap_btw_ctxs_on_level(int level, int *workers_in, int nworkers_in, unsigned father_sched_ctx_id, unsigned **sched_ctxs, int *nsched_ctxs)
int * sc_hypervisor_get_idlest_workers_in_list(int *start, int *workers, int nall_workers, int *nworkers, enum starpu_worker_archtype arch)
double sc_hypervisor_get_ref_speed_per_worker_type(struct sc_hypervisor_wrapper *sc_w, enum starpu_worker_archtype arch)
struct sc_hypervisor_policy_task_pool * sc_hypervisor_policy_clone_task_pool(struct sc_hypervisor_policy_task_pool *tp)
double sc_hypervisor_get_speed_per_worker(struct sc_hypervisor_wrapper *sc_w, unsigned worker)
void sc_hypervisor_policy_remove_task_from_pool(struct starpu_task *task, uint32_t footprint, struct sc_hypervisor_policy_task_pool **task_pools)
double sc_hypervisor_get_fastest_ctx_exec_time(void)
unsigned sc_hypervisor_policy_resize_to_unknown_receiver(unsigned sender_sched_ctx, unsigned now)
void sc_hypervisor_get_tasks_times(int nw, int nt, double times[nw][nt], int *workers, unsigned size_ctxs, struct sc_hypervisor_policy_task_pool *task_pools)
unsigned sc_hypervisor_check_idle(unsigned sched_ctx, int worker)
int sc_hypervisor_compute_nworkers_to_move(unsigned req_sched_ctx)
Definition sc_hypervisor_policy.h:49
Definition sc_hypervisor_policy.h:38
starpu_worker_archtype
Definition starpu_worker.h:66
Definition sc_hypervisor_config.h:140
Definition sc_hypervisor_monitoring.h:68