StarPU Internal Handbook

perfmodel.h
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1/* StarPU --- Runtime system for heterogeneous multicore architectures.
2 *
3 * Copyright (C) 2008-2021 Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
4 * Copyright (C) 2011 Télécom-SudParis
5 * Copyright (C) 2013 Thibaut Lambert
6 *
7 * StarPU is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published by
9 * the Free Software Foundation; either version 2.1 of the License, or (at
10 * your option) any later version.
11 *
12 * StarPU is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 *
16 * See the GNU Lesser General Public License in COPYING.LGPL for more details.
17 */
18
19#ifndef __PERFMODEL_H__
20#define __PERFMODEL_H__
21
24#include <common/config.h>
25#include <starpu.h>
26#include <core/task_bundle.h>
27#include <stdio.h>
28
29#ifdef __cplusplus
30 extern "C"
31{
32#endif
33
43#define _STARPU_PERFMODEL_VERSION 45
44
45 struct _starpu_perfmodel_state
46{
47 struct starpu_perfmodel_per_arch** per_arch; /*STARPU_MAXIMPLEMENTATIONS*/
48 int** per_arch_is_set; /*STARPU_MAXIMPLEMENTATIONS*/
49
50 starpu_pthread_rwlock_t model_rwlock;
51 int *nimpls;
52 int *nimpls_set;
54 int ncombs;
56 int ncombs_set;
57 int *combs;
58};
59
60 struct starpu_data_descr;
61 struct _starpu_job;
62 struct starpu_perfmodel_arch;
63
64 extern unsigned _starpu_calibration_minimum;
65
66 char *_starpu_get_perf_model_dir_codelet();
67 char *_starpu_get_perf_model_dir_bus();
68 char *_starpu_get_perf_model_dir_debug();
69
70 double _starpu_history_based_job_expected_perf(struct starpu_perfmodel *model, struct starpu_perfmodel_arch* arch, struct _starpu_job *j, unsigned nimpl);
71 void _starpu_load_history_based_model(struct starpu_perfmodel *model, unsigned scan_history);
72 void _starpu_init_and_load_perfmodel(struct starpu_perfmodel *model);
73 void _starpu_initialize_registered_performance_models(void);
74 void _starpu_deinitialize_registered_performance_models(void);
75 void _starpu_deinitialize_performance_model(struct starpu_perfmodel *model);
76
77 double _starpu_regression_based_job_expected_perf(struct starpu_perfmodel *model,
78 struct starpu_perfmodel_arch* arch, struct _starpu_job *j, unsigned nimpl);
79 double _starpu_non_linear_regression_based_job_expected_perf(struct starpu_perfmodel *model,
80 struct starpu_perfmodel_arch* arch, struct _starpu_job *j, unsigned nimpl);
81 double _starpu_multiple_regression_based_job_expected_perf(struct starpu_perfmodel *model, struct starpu_perfmodel_arch* arch,
82 struct _starpu_job *j, unsigned nimpl);
83 void _starpu_update_perfmodel_history(struct _starpu_job *j, struct starpu_perfmodel *model, struct starpu_perfmodel_arch * arch,
84 unsigned cpuid, double measured, unsigned nimpl);
85 int _starpu_perfmodel_create_comb_if_needed(struct starpu_perfmodel_arch* arch);
86
87 void _starpu_create_sampling_directory_if_needed(void);
88
89 void _starpu_load_bus_performance_files(void);
90
91 void _starpu_set_calibrate_flag(unsigned val);
92 unsigned _starpu_get_calibrate_flag(void);
93
94#if defined(STARPU_USE_CUDA)
95 unsigned *_starpu_get_cuda_affinity_vector(unsigned gpuid);
96#endif
97#if defined(STARPU_USE_OPENCL)
98 unsigned *_starpu_get_opencl_affinity_vector(unsigned gpuid);
99#endif
100
101 void _starpu_save_bandwidth_and_latency_disk(double bandwidth_write, double bandwidth_read,
102 double latency_write, double latency_read, unsigned node, const char *name);
103
104 void _starpu_write_double(FILE *f, const char *format, double val);
105 int _starpu_read_double(FILE *f, char *format, double *val);
106 void _starpu_simgrid_get_platform_path(int version, char *path, size_t maxlen);
107
108 void _starpu_perfmodel_realloc(struct starpu_perfmodel *model, int nb);
109
110 void _starpu_free_arch_combs(void);
111
112#if defined(STARPU_HAVE_HWLOC)
113hwloc_topology_t _starpu_perfmodel_get_hwtopology();
114#endif
115
116#ifdef __cplusplus
117}
118#endif
119
120#endif // __PERFMODEL_H__
_starpu_perfmodel_state::ncombs_set
int ncombs_set
Definition: perfmodel.h:56
_starpu_perfmodel_state::ncombs
int ncombs
Definition: perfmodel.h:54
_starpu_perfmodel_state
Definition: perfmodel.h:46
_starpu_job
Definition: jobs.h:79
task_bundle.h