StarPU Handbook - StarPU Introduction
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starpu_perfmodel.h
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1/* StarPU --- Runtime system for heterogeneous multicore architectures.
2 *
3 * Copyright (C) 2009-2023 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 __STARPU_PERFMODEL_H__
20#define __STARPU_PERFMODEL_H__
21
22#include <starpu.h>
23#include <stdio.h>
24
25#ifdef __cplusplus
26extern "C" {
27#endif
28
34struct starpu_task;
36
46
55
57{
58 double mean;
59 double deviation;
60 double sum;
61 double sum2;
62 unsigned nsample;
63 unsigned nerror;
64 uint32_t footprint;
65 size_t size;
66 double flops;
68 double duration;
69 starpu_tag_t tag;
70 double *parameters;
71};
72
78
83{
84 double sumlny;
86 double sumlnx;
87 double sumlnx2;
89 unsigned long minx;
90 unsigned long maxx;
92 double sumlnxlny;
94 double alpha;
95 double beta;
96 unsigned valid;
98 double a;
99 double b;
100 double c;
101 unsigned nl_valid;
103 unsigned nsample;
105 double *coeff;
106 unsigned ncoeff;
107 unsigned multi_valid;
108};
109
110struct starpu_perfmodel_history_table;
111
112#define starpu_per_arch_perfmodel starpu_perfmodel_per_arch STARPU_DEPRECATED
113
114typedef double (*starpu_perfmodel_per_arch_cost_function)(struct starpu_task *task, struct starpu_perfmodel_arch *arch, unsigned nimpl);
115typedef size_t (*starpu_perfmodel_per_arch_size_base)(struct starpu_task *task, struct starpu_perfmodel_arch *arch, unsigned nimpl);
116
121{
128 starpu_perfmodel_per_arch_cost_function cost_function;
133 starpu_perfmodel_per_arch_size_base size_base;
134
139 struct starpu_perfmodel_history_table *history;
154
155 char debug_path[256];
156};
157
173
174struct _starpu_perfmodel_state;
175typedef struct _starpu_perfmodel_state *starpu_perfmodel_state_t;
176
186{
219
224 double (*cost_function)(struct starpu_task *, unsigned nimpl);
230 double (*arch_cost_function)(struct starpu_task *, struct starpu_perfmodel_arch *arch, unsigned nimpl);
236 double (*worker_cost_function)(struct starpu_task *, unsigned workerid, unsigned nimpl);
237
244 size_t (*size_base)(struct starpu_task *, unsigned nimpl);
251 uint32_t (*footprint)(struct starpu_task *);
252
258 const char *symbol;
259
264 char *path;
265
270 unsigned is_loaded;
274 unsigned benchmarking;
278 unsigned is_init;
279
280 void (*parameters)(struct starpu_task *task, double *parameters);
286 const char **parameters_names;
291 unsigned nparameters;
297 unsigned **combinations;
307 starpu_perfmodel_state_t state;
308};
309
315
322
332
345int starpu_energy_stop(struct starpu_perfmodel *model, struct starpu_task *task, unsigned nimpl, unsigned ntasks, int workerid, enum starpu_worker_archtype archi);
346
351int starpu_perfmodel_load_file(const char *filename, struct starpu_perfmodel *model);
352
360int starpu_perfmodel_load_symbol(const char *symbol, struct starpu_perfmodel *model);
361
367
372
378void starpu_perfmodel_get_model_path(const char *symbol, char *path, size_t maxlen);
379
384void starpu_perfmodel_dump_xml(FILE *output, struct starpu_perfmodel *model);
385
393
397struct starpu_perfmodel_arch *starpu_worker_get_perf_archtype(int workerid, unsigned sched_ctx_id);
398
399int starpu_perfmodel_get_narch_combs(void);
400int starpu_perfmodel_arch_comb_add(int ndevices, struct starpu_perfmodel_device *devices);
401int starpu_perfmodel_arch_comb_get(int ndevices, struct starpu_perfmodel_device *devices);
402struct starpu_perfmodel_arch *starpu_perfmodel_arch_comb_fetch(int comb);
403
404struct starpu_perfmodel_per_arch *starpu_perfmodel_get_model_per_arch(struct starpu_perfmodel *model, struct starpu_perfmodel_arch *arch, unsigned impl);
405struct starpu_perfmodel_per_arch *starpu_perfmodel_get_model_per_devices(struct starpu_perfmodel *model, int impl, ...);
406
407int starpu_perfmodel_set_per_devices_cost_function(struct starpu_perfmodel *model, int impl, starpu_perfmodel_per_arch_cost_function func, ...);
408int starpu_perfmodel_set_per_devices_size_base(struct starpu_perfmodel *model, int impl, starpu_perfmodel_per_arch_size_base func, ...);
409
413void starpu_perfmodel_debugfilepath(struct starpu_perfmodel *model, struct starpu_perfmodel_arch *arch, char *path, size_t maxlen, unsigned nimpl);
414
415const char *starpu_perfmodel_get_archtype_name(enum starpu_worker_archtype archtype);
416
420void starpu_perfmodel_get_arch_name(struct starpu_perfmodel_arch *arch, char *archname, size_t maxlen, unsigned nimpl);
421
425double starpu_perfmodel_history_based_expected_perf(struct starpu_perfmodel *model, struct starpu_perfmodel_arch *arch, uint32_t footprint);
426
431
435int starpu_perfmodel_list(FILE *output);
436
437void starpu_perfmodel_print(struct starpu_perfmodel *model, struct starpu_perfmodel_arch *arch, unsigned nimpl, char *parameter, uint32_t *footprint, FILE *output);
438int starpu_perfmodel_print_all(struct starpu_perfmodel *model, char *arch, char *parameter, uint32_t *footprint, FILE *output);
439int starpu_perfmodel_print_estimations(struct starpu_perfmodel *model, uint32_t footprint, FILE *output);
440
441int starpu_perfmodel_list_combs(FILE *output, struct starpu_perfmodel *model);
442
461void starpu_perfmodel_update_history(struct starpu_perfmodel *model, struct starpu_task *task, struct starpu_perfmodel_arch *arch, unsigned cpuid, unsigned nimpl, double measured);
462
469void starpu_perfmodel_update_history_n(struct starpu_perfmodel *model, struct starpu_task *task, struct starpu_perfmodel_arch *arch, unsigned cpuid, unsigned nimpl, double average_measured, unsigned number);
470
474void starpu_perfmodel_directory(FILE *output);
475
480
485
490
495double starpu_transfer_bandwidth(unsigned src_node, unsigned dst_node);
496
501double starpu_transfer_latency(unsigned src_node, unsigned dst_node);
502
507double starpu_transfer_predict(unsigned src_node, unsigned dst_node, size_t size);
508
513
516#ifdef __cplusplus
517}
518#endif
519
520#endif /* __STARPU_PERFMODEL_H__ */
unsigned workerid
Definition starpu_task.h:1206
Definition starpu_task.h:664
Definition starpu_task.h:679
uint64_t starpu_tag_t
Definition starpu_task_dep.h:134
double sum2
Definition starpu_perfmodel.h:61
const char * symbol
Definition starpu_perfmodel.h:258
starpu_perfmodel_per_arch_cost_function cost_function
Definition starpu_perfmodel.h:128
double(* cost_function)(struct starpu_task *, unsigned nimpl)
Definition starpu_perfmodel.h:224
struct starpu_perfmodel_regression_model regression
Definition starpu_perfmodel.h:153
struct starpu_perfmodel_history_list * list
Definition starpu_perfmodel.h:146
unsigned valid
Definition starpu_perfmodel.h:96
size_t size
Definition starpu_perfmodel.h:65
double deviation
Definition starpu_perfmodel.h:59
unsigned ncombinations
Definition starpu_perfmodel.h:303
struct starpu_perfmodel_device * devices
Definition starpu_perfmodel.h:53
uint32_t(* footprint)(struct starpu_task *)
Definition starpu_perfmodel.h:251
double(* arch_cost_function)(struct starpu_task *, struct starpu_perfmodel_arch *arch, unsigned nimpl)
Definition starpu_perfmodel.h:230
double sumlnx2
Definition starpu_perfmodel.h:87
unsigned ** combinations
Definition starpu_perfmodel.h:297
int ncores
Definition starpu_perfmodel.h:44
unsigned ncoeff
Definition starpu_perfmodel.h:106
int devid
Definition starpu_perfmodel.h:43
unsigned long minx
Definition starpu_perfmodel.h:89
double sumlny
Definition starpu_perfmodel.h:84
size_t(* size_base)(struct starpu_task *, unsigned nimpl)
Definition starpu_perfmodel.h:244
double mean
Definition starpu_perfmodel.h:58
unsigned nl_valid
Definition starpu_perfmodel.h:101
double sumlnxlny
Definition starpu_perfmodel.h:92
unsigned nparameters
Definition starpu_perfmodel.h:291
unsigned nsample
Definition starpu_perfmodel.h:62
const char ** parameters_names
Definition starpu_perfmodel.h:286
double beta
Definition starpu_perfmodel.h:95
starpu_perfmodel_per_arch_size_base size_base
Definition starpu_perfmodel.h:133
double sum
Definition starpu_perfmodel.h:60
double a
Definition starpu_perfmodel.h:98
enum starpu_worker_archtype type
Definition starpu_perfmodel.h:42
char * path
Definition starpu_perfmodel.h:264
double(* worker_cost_function)(struct starpu_task *, unsigned workerid, unsigned nimpl)
Definition starpu_perfmodel.h:236
double c
Definition starpu_perfmodel.h:100
double sumlnx
Definition starpu_perfmodel.h:86
unsigned nsample
Definition starpu_perfmodel.h:103
unsigned long maxx
Definition starpu_perfmodel.h:90
uint32_t footprint
Definition starpu_perfmodel.h:64
int ndevices
Definition starpu_perfmodel.h:52
unsigned is_loaded
Definition starpu_perfmodel.h:270
struct starpu_perfmodel_history_table * history
Definition starpu_perfmodel.h:139
unsigned multi_valid
Definition starpu_perfmodel.h:107
double * coeff
Definition starpu_perfmodel.h:105
double flops
Definition starpu_perfmodel.h:66
double b
Definition starpu_perfmodel.h:99
double alpha
Definition starpu_perfmodel.h:94
enum starpu_perfmodel_type type
Definition starpu_perfmodel.h:218
double starpu_perfmodel_history_based_expected_perf(struct starpu_perfmodel *model, struct starpu_perfmodel_arch *arch, uint32_t footprint)
void starpu_perfmodel_init(struct starpu_perfmodel *model)
void starpu_perfmodel_debugfilepath(struct starpu_perfmodel *model, struct starpu_perfmodel_arch *arch, char *path, size_t maxlen, unsigned nimpl)
void starpu_perfmodel_get_model_path(const char *symbol, char *path, size_t maxlen)
struct starpu_perfmodel starpu_perfmodel_nop
int starpu_perfmodel_load_symbol(const char *symbol, struct starpu_perfmodel *model)
void starpu_bus_print_affinity(FILE *f)
void starpu_perfmodel_get_arch_name(struct starpu_perfmodel_arch *arch, char *archname, size_t maxlen, unsigned nimpl)
int starpu_perfmodel_list(FILE *output)
double starpu_transfer_bandwidth(unsigned src_node, unsigned dst_node)
double starpu_transfer_latency(unsigned src_node, unsigned dst_node)
void starpu_bus_print_filenames(FILE *f)
int starpu_energy_start(int workerid, enum starpu_worker_archtype archi)
int starpu_energy_stop(struct starpu_perfmodel *model, struct starpu_task *task, unsigned nimpl, unsigned ntasks, int workerid, enum starpu_worker_archtype archi)
void starpu_perfmodel_free_sampling(void)
int starpu_perfmodel_unload_model(struct starpu_perfmodel *model)
double starpu_transfer_predict(unsigned src_node, unsigned dst_node, size_t size)
void starpu_save_history_based_model(struct starpu_perfmodel *model)
void starpu_perfmodel_initialize(void)
void starpu_perfmodel_dump_xml(FILE *output, struct starpu_perfmodel *model)
void starpu_bus_print_bandwidth(FILE *f)
int starpu_perfmodel_deinit(struct starpu_perfmodel *model)
struct starpu_perfmodel_arch * starpu_worker_get_perf_archtype(int workerid, unsigned sched_ctx_id)
starpu_perfmodel_type
Definition starpu_perfmodel.h:162
void starpu_perfmodel_update_history_n(struct starpu_perfmodel *model, struct starpu_task *task, struct starpu_perfmodel_arch *arch, unsigned cpuid, unsigned nimpl, double average_measured, unsigned number)
void starpu_perfmodel_directory(FILE *output)
void starpu_perfmodel_update_history(struct starpu_perfmodel *model, struct starpu_task *task, struct starpu_perfmodel_arch *arch, unsigned cpuid, unsigned nimpl, double measured)
int starpu_perfmodel_load_file(const char *filename, struct starpu_perfmodel *model)
@ STARPU_NL_REGRESSION_BASED
Definition starpu_perfmodel.h:169
@ STARPU_PER_WORKER
Definition starpu_perfmodel.h:164
@ STARPU_MULTIPLE_REGRESSION_BASED
Definition starpu_perfmodel.h:170
@ STARPU_REGRESSION_BASED
Definition starpu_perfmodel.h:168
@ STARPU_COMMON
Definition starpu_perfmodel.h:166
@ STARPU_PER_ARCH
Definition starpu_perfmodel.h:165
@ STARPU_HISTORY_BASED
Definition starpu_perfmodel.h:167
Definition starpu_perfmodel.h:186
Definition starpu_perfmodel.h:51
Definition starpu_perfmodel.h:41
Definition starpu_perfmodel.h:57
Definition starpu_perfmodel.h:74
Definition starpu_perfmodel.h:121
Definition starpu_perfmodel.h:83
starpu_worker_archtype
Definition starpu_worker.h:66