1 /* Copyright (c) 2009-2010, 2012-2013. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /* sg_config: configuration infrastructure for the simulation world */
10 #include "xbt/config.h"
12 #include "xbt/mallocator.h"
15 #include "xbt/sysdep.h"
16 #include "surf/surf.h"
17 #include "surf/maxmin.h"
18 #include "instr/instr_interface.h"
19 #include "simgrid/simix.h"
20 #include "simgrid/sg_config.h"
21 #include "smpi/smpi_interface.h"
23 #include "instr/instr.h"
25 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
26 "About the configuration of simgrid");
28 xbt_cfg_t _sg_cfg_set = NULL;
30 int _sg_init_status = 0; /* 0: beginning of time (config cannot be changed yet);
31 1: initialized: cfg_set created (config can now be changed);
32 2: configured: command line parsed and config part of platform file was integrated also, platform construction ongoing or done.
33 (Config cannot be changed anymore!) */
35 /* Parse the command line, looking for options */
36 static void sg_config_cmd_line(int *argc, char **argv)
42 for (j = i = 1; i < *argc; i++) {
43 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
44 opt = strchr(argv[i], '=');
47 xbt_cfg_set_parse(_sg_cfg_set, opt);
48 XBT_DEBUG("Did apply '%s' as config setting", opt);
49 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
51 ("Description of the configuration accepted by this simulator:\n");
52 xbt_cfg_help(_sg_cfg_set);
55 "Each of these configurations can be used by adding\n"
56 " --cfg=<option name>:<option value>\n"
57 "to the command line.\n"
58 "You can also use --help-models to see the details of all models known by this simulator.\n"
61 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
64 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
68 } else if (!strcmp(argv[i], "--help-models")) {
71 model_help("workstation", surf_workstation_model_description);
73 model_help("CPU", surf_cpu_model_description);
75 model_help("network", surf_network_model_description);
76 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
77 for (k = 0; surf_optimization_mode_description[k].name; k++)
79 surf_optimization_mode_description[k].name,
80 surf_optimization_mode_description[k].description);
81 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
84 } else if (!strcmp(argv[i], "--help-tracing")) {
97 _sg_init_status = 1; // get everything cleanly cleaned on exit
102 /* callback of the workstation/model variable */
103 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
107 xbt_assert(_sg_init_status < 2,
108 "Cannot change the model after the initialization");
110 val = xbt_cfg_get_string(_sg_cfg_set, name);
112 if (!strcmp(val, "help")) {
113 model_help("workstation", surf_workstation_model_description);
117 /* Make sure that the model exists */
118 find_model_description(surf_workstation_model_description, val);
121 /* callback of the cpu/model variable */
122 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
126 xbt_assert(_sg_init_status < 2,
127 "Cannot change the model after the initialization");
129 val = xbt_cfg_get_string(_sg_cfg_set, name);
131 if (!strcmp(val, "help")) {
132 model_help("CPU", surf_cpu_model_description);
136 /* New Module missing */
137 find_model_description(surf_cpu_model_description, val);
140 /* callback of the cpu/model variable */
141 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
145 xbt_assert(_sg_init_status < 2,
146 "Cannot change the model after the initialization");
148 val = xbt_cfg_get_string(_sg_cfg_set, name);
150 if (!strcmp(val, "help")) {
151 model_help("optimization", surf_optimization_mode_description);
155 /* New Module missing */
156 find_model_description(surf_optimization_mode_description, val);
159 /* callback of the cpu/model variable */
160 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
164 xbt_assert(_sg_init_status < 2,
165 "Cannot change the model after the initialization");
167 val = xbt_cfg_get_string(_sg_cfg_set, name);
169 if (!strcmp(val, "help")) {
170 model_help("storage", surf_storage_model_description);
174 /* New Module missing */
175 find_model_description(surf_storage_model_description, val);
178 /* callback of the workstation_model variable */
179 static void _sg_cfg_cb__network_model(const char *name, int pos)
183 xbt_assert(_sg_init_status < 2,
184 "Cannot change the model after the initialization");
186 val = xbt_cfg_get_string(_sg_cfg_set, name);
188 if (!strcmp(val, "help")) {
189 model_help("network", surf_network_model_description);
193 /* New Module missing */
194 find_model_description(surf_network_model_description, val);
197 /* callbacks of the network models values */
198 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
200 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
203 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
205 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
208 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
210 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
213 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
215 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
218 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
220 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
223 static void _sg_cfg_cb__weight_S(const char *name, int pos)
225 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
229 /* callback of the mpi collectives */
230 static void _sg_cfg_cb__coll(const char *category,
231 s_mpi_coll_description_t * table,
232 const char *name, int pos)
236 xbt_assert(_sg_init_status < 2,
237 "Cannot change the model after the initialization");
239 val = xbt_cfg_get_string(_sg_cfg_set, name);
241 if (!strcmp(val, "help")) {
242 coll_help(category, table);
246 /* New Module missing */
247 find_coll_description(table, val);
249 static void _sg_cfg_cb__coll_gather(const char *name, int pos){
250 _sg_cfg_cb__coll("gather", mpi_coll_gather_description, name, pos);
252 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
253 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
255 static void _sg_cfg_cb__coll_allgatherv(const char *name, int pos){
256 _sg_cfg_cb__coll("allgatherv", mpi_coll_allgatherv_description, name, pos);
258 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
260 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
262 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
264 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
266 static void _sg_cfg_cb__coll_alltoallv(const char *name, int pos)
268 _sg_cfg_cb__coll("alltoallv", mpi_coll_alltoallv_description, name, pos);
270 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
272 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
274 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
276 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
278 static void _sg_cfg_cb__coll_reduce_scatter(const char *name, int pos){
279 _sg_cfg_cb__coll("reduce_scatter", mpi_coll_reduce_scatter_description, name, pos);
281 static void _sg_cfg_cb__coll_scatter(const char *name, int pos){
282 _sg_cfg_cb__coll("scatter", mpi_coll_scatter_description, name, pos);
284 static void _sg_cfg_cb__coll_barrier(const char *name, int pos){
285 _sg_cfg_cb__coll("barrier", mpi_coll_barrier_description, name, pos);
289 /* callback of the inclusion path */
290 static void _sg_cfg_cb__surf_path(const char *name, int pos)
292 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
293 xbt_dynar_push(surf_path, &path);
296 /* callback to decide if we want to use the model-checking */
297 #include "xbt_modinter.h"
299 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
302 static void _sg_cfg_cb_model_check(const char *name, int pos)
305 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
307 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
308 xbt_die("You tried to activate the model-checking from the command line, but it was not compiled in. Change your settings in cmake, recompile and try again");
313 extern int _sg_do_verbose_exit;
315 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
317 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
320 extern int _sg_do_clean_atexit;
322 static void _sg_cfg_cb_clean_atexit(const char *name, int pos)
324 _sg_do_clean_atexit = xbt_cfg_get_boolean(_sg_cfg_set, name);
327 static void _sg_cfg_cb_context_factory(const char *name, int pos)
329 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
332 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
334 smx_context_stack_size_was_set = 1;
335 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
338 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
340 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
343 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
345 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
348 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
350 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
351 if (!strcmp(mode_name, "posix")) {
352 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
354 else if (!strcmp(mode_name, "futex")) {
355 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
357 else if (!strcmp(mode_name, "busy_wait")) {
358 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
361 xbt_die("Command line setting of the parallel synchronization mode should "
362 "be one of \"posix\", \"futex\" or \"busy_wait\"");
366 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
369 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
371 if (!COORD_HOST_LEVEL) {
372 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
373 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
376 if (COORD_HOST_LEVEL)
377 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
380 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
383 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
387 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
389 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
392 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
394 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
398 /* create the config set, register what should be and parse the command line*/
399 void sg_config_init(int *argc, char **argv)
401 char *description = xbt_malloc(1024), *p = description;
404 /* Create the configuration support */
405 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
407 "The model to use for the CPU. Possible values: ");
409 while (*(++p) != '\0');
410 for (i = 0; surf_cpu_model_description[i].name; i++)
411 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
412 surf_cpu_model_description[i].name);
414 ".\n (use 'help' as a value to see the long description of each model)");
415 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description,
416 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
417 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/model", "Cas01");
419 while (*(++p) != '\0');
420 for (i = 0; surf_optimization_mode_description[i].name; i++)
421 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
422 surf_optimization_mode_description[i].name);
424 ".\n (use 'help' as a value to see the long description of each optimization mode)");
425 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description,
426 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
427 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/optim", "Lazy");
430 "The model to use for the storage. Possible values: ");
432 while (*(++p) != '\0');
433 for (i = 0; surf_storage_model_description[i].name; i++)
434 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
435 surf_storage_model_description[i].name);
437 ".\n (use 'help' as a value to see the long description of each model)");
438 xbt_cfg_register(&_sg_cfg_set, "storage/model", description,
439 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
440 xbt_cfg_setdefault_string(_sg_cfg_set, "storage/model", "default");
442 /* ********************************************************************* */
443 /* TUTORIAL: New model */
445 "The model to use for the New model. Possible values: ");
447 while (*(++p) != '\0');
448 for (i = 0; surf_new_model_description[i].name; i++)
449 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
450 surf_new_model_description[i].name);
452 ".\n (use 'help' as a value to see the long description of each model)");
453 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description,
454 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
455 xbt_cfg_setdefault_string(_sg_cfg_set, "new_model/model", "default");
456 /* ********************************************************************* */
459 "The model to use for the network. Possible values: ");
461 while (*(++p) != '\0');
462 for (i = 0; surf_network_model_description[i].name; i++)
463 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
464 surf_network_model_description[i].name);
466 ".\n (use 'help' as a value to see the long description of each model)");
467 xbt_cfg_register(&_sg_cfg_set, "network/model", description,
468 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__network_model, NULL);
469 xbt_cfg_setdefault_string(_sg_cfg_set, "network/model", "LV08");
472 "The optimization modes to use for the network. Possible values: ");
474 while (*(++p) != '\0');
475 for (i = 0; surf_optimization_mode_description[i].name; i++)
476 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
477 surf_optimization_mode_description[i].name);
479 ".\n (use 'help' as a value to see the long description of each optimization mode)");
480 xbt_cfg_register(&_sg_cfg_set, "network/optim", description,
481 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
482 xbt_cfg_setdefault_string(_sg_cfg_set, "network/optim", "Lazy");
485 "The model to use for the workstation. Possible values: ");
487 while (*(++p) != '\0');
488 for (i = 0; surf_workstation_model_description[i].name; i++)
489 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
490 surf_workstation_model_description[i].name);
492 ".\n (use 'help' as a value to see the long description of each model)");
493 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description,
494 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__workstation_model, NULL);
495 xbt_cfg_setdefault_string(_sg_cfg_set, "workstation/model", "default");
497 xbt_free(description);
499 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
500 "Size of the biggest TCP window (cat /proc/sys/net/ipv4/tcp_[rw]mem for recv/send window; Use the last given value, which is the max window size)",
501 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__tcp_gamma, NULL);
502 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
504 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
505 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
506 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
507 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
509 /* The parameters of network models */
511 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
512 "Minimum gap between two overlapping sends",
513 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__sender_gap, NULL);
514 /* default for "network/sender_gap" is set in network.c */
516 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
517 "Correction factor to apply to the provided latency (default value set by network model)",
518 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__latency_factor, NULL);
519 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
521 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
522 "Correction factor to apply to the provided bandwidth (default value set by network model)",
523 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__bandwidth_factor, NULL);
524 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 1.0);
526 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
527 "Correction factor to apply to the weight of competing streams (default value set by network model)",
528 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__weight_S, NULL);
529 /* default for "network/weight_S" is set in network.c */
532 xbt_cfg_register(&_sg_cfg_set, "path",
533 "Lookup path for inclusions in platform and deployment XML files",
534 xbt_cfgelm_string, 0, 0, _sg_cfg_cb__surf_path, NULL);
536 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
537 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
538 xbt_cfgelm_boolean, 0, 1, NULL, NULL);
539 xbt_cfg_setdefault_boolean(_sg_cfg_set, "cpu/maxmin_selective_update", "no");
541 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
542 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
543 xbt_cfgelm_boolean, 0, 1, NULL, NULL);
544 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/maxmin_selective_update", "no");
547 /* do model-checking */
548 xbt_cfg_register(&_sg_cfg_set, "model-check",
549 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
550 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb_model_check, NULL);
551 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", "no");
553 /* do stateful model-checking */
554 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
555 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
556 "If value=on, one checkpoint is saved for each step => faster verification, but huge memory consumption; higher values are good compromises between speed and memory consumption.",
557 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_checkpoint, NULL);
558 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
560 /* do liveness model-checking */
561 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
562 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
563 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_property, NULL);
564 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
566 /* Specify the kind of model-checking reduction */
567 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
568 "Specify the kind of exploration reduction (either none or DPOR)",
569 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_reduce, NULL);
570 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
572 /* Enable/disable timeout for wait requests with model-checking */
573 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
574 "Enable/Disable timeout for wait requests",
575 xbt_cfgelm_boolean, 0, 1, _mc_cfg_cb_timeout, NULL);
576 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", "no");
578 /* Set max depth exploration */
579 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
580 "Specify the max depth of exploration (default : 1000)",
581 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_max_depth, NULL);
582 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
584 /* Set number of visited state stored for state comparison reduction*/
585 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
586 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
587 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_visited, NULL);
588 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
590 /* Set file name for dot output of graph state */
591 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
592 "Specify the name of dot file corresponding to graph state",
593 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_dot_output, NULL);
594 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
597 /* do verbose-exit */
598 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
599 "Activate the \"do nothing\" mode in Ctrl-C",
600 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb_verbose_exit, NULL);
601 xbt_cfg_setdefault_boolean(_sg_cfg_set, "verbose-exit", "yes");
603 /* context factory */
604 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
605 "Context factory to use in SIMIX (ucontext, thread or raw)",
606 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_context_factory, NULL);
608 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/factory", "ucontext");
610 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/factory", "raw");
613 /* stack size of contexts in Ko */
614 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
615 "Stack size of contexts in Kib",
616 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_context_stack_size, NULL);
617 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/stack_size", 128);
619 /* number of parallel threads for user processes */
620 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
621 "Number of parallel threads used to execute user contexts",
622 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_nthreads, NULL);
623 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/nthreads", 1);
625 /* minimal number of user contexts to be run in parallel */
626 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
627 "Minimal number of user contexts to be run in parallel (raw contexts only)",
628 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_parallel_threshold, NULL);
629 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/parallel_threshold", 2);
631 /* synchronization mode for parallel user contexts */
632 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
633 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
634 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_contexts_parallel_mode, NULL);
636 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "futex");
637 #else //No futex on mac and posix is unimplememted yet
638 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "busy_wait");
641 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
642 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
643 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb__surf_network_coordinates, NULL);
644 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", "no");
646 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
647 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
648 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb__surf_network_crosstraffic, NULL);
649 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "no");
652 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
653 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
654 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__gtnets_jitter, NULL);
655 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
657 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
658 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
659 xbt_cfgelm_int, 0, 1, _sg_cfg_cb__gtnets_jitter_seed, NULL);
660 xbt_cfg_setdefault_int(_sg_cfg_set, "gtnets/jitter_seed", 10);
663 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
664 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
665 xbt_cfgelm_string, 1, 1, NULL, NULL);
666 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
670 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
671 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
672 xbt_cfgelm_double, 1, 1, NULL, NULL);
673 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/running_power", 20000.0);
675 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
676 "Boolean indicating whether we should display the timing after simulation.",
677 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
678 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", "no");
680 xbt_cfg_register(&_sg_cfg_set, "smpi/use_shared_malloc",
681 "Boolean indicating whether we should use shared memory when using SMPI_SHARED_MALLOC. Allows user to disable it for debug purposes.",
682 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
683 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", "yes");
685 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
686 "Minimal computation time (in seconds) not discarded.",
687 xbt_cfgelm_double, 1, 1, NULL, NULL);
688 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/cpu_threshold", 1e-6);
690 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
691 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
692 xbt_cfgelm_int, 1, 1, NULL, NULL);
693 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/async_small_thres", 0);
695 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
696 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
697 xbt_cfgelm_int, 1, 1, NULL, NULL);
698 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/send_is_detached_thres", 65536);
700 //For smpi/bw_factor and smpi/lat_factor
701 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
702 //test is if( size >= thresholdN ) return valueN;
703 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
704 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
705 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
706 "Bandwidth factors for smpi.",
707 xbt_cfgelm_string, 1, 1, NULL, NULL);
708 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/bw_factor", "65472:0.940694;15424:0.697866;9376:0.58729;5776:1.08739;3484:0.77493;1426:0.608902;732:0.341987;257:0.338112;0:0.812084");
710 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
711 "Latency factors for smpi.",
712 xbt_cfgelm_string, 1, 1, NULL, NULL);
713 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/lat_factor", "65472:11.6436;15424:3.48845;9376:2.59299;5776:2.18796;3484:1.88101;1426:1.61075;732:1.9503;257:1.95341;0:2.01467");
715 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
716 "Small messages timings (MPI_Send minimum time for small messages)",
717 xbt_cfgelm_string, 1, 1, NULL, NULL);
718 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
720 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
721 "Small messages timings (MPI_Isend minimum time for small messages)",
722 xbt_cfgelm_string, 1, 1, NULL, NULL);
723 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
725 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
726 "Small messages timings (MPI_Recv minimum time for small messages)",
727 xbt_cfgelm_string, 1, 1, NULL, NULL);
728 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
729 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
730 "Minimum time to inject inside a call to MPI_Iprobe",
731 xbt_cfgelm_double, 1, 1, NULL, NULL);
732 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/iprobe", 1e-4);
733 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
734 "Which collective selector to use",
735 xbt_cfgelm_string, 1, 1, NULL, NULL);
736 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/coll_selector", "default");
738 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
739 "Which collective to use for gather",
740 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_gather, NULL);
742 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
743 "Which collective to use for allgather",
744 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allgather, NULL);
746 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
747 "Which collective to use for barrier",
748 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_barrier, NULL);
750 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
751 "Which collective to use for reduce_scatter",
752 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_reduce_scatter, NULL);
754 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
755 "Which collective to use for scatter",
756 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_scatter, NULL);
758 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
759 "Which collective to use for allgatherv",
760 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allgatherv, NULL);
762 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
763 "Which collective to use for allreduce",
764 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allreduce, NULL);
766 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
767 "Which collective to use for alltoall",
768 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_alltoall, NULL);
770 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
771 "Which collective to use for alltoallv",
772 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_alltoallv, NULL);
774 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
775 "Which collective to use for bcast",
776 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_bcast, NULL);
778 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
779 "Which collective to use for reduce",
780 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_reduce, NULL);
783 xbt_cfg_register(&_sg_cfg_set, "clean_atexit",
784 "\"yes\" or \"no\". \"yes\" enables all the cleanups of SimGrid (XBT,SIMIX,MSG) to be registered with atexit. \"no\" may be useful if your code segfaults when calling the exit function.",
785 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_clean_atexit, NULL);
786 xbt_cfg_setdefault_boolean(_sg_cfg_set, "clean_atexit", "yes");
789 /* retrieves the current directory of the current process */
790 const char *initial_path = __surf_get_initial_path();
791 xbt_assert((initial_path),
792 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
794 surf_path = xbt_dynar_new(sizeof(char *), NULL);
795 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
800 sg_config_cmd_line(argc, argv);
802 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
805 XBT_WARN("Call to sg_config_init() after initialization ignored");
809 void sg_config_finalize(void)
811 if (!_sg_init_status)
812 return; /* Not initialized yet. Nothing to do */
814 xbt_cfg_free(&_sg_cfg_set);
818 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
819 void surf_config_models_setup()
821 const char *workstation_model_name;
822 int workstation_id = -1;
823 char *network_model_name = NULL;
824 char *cpu_model_name = NULL;
826 char *storage_model_name = NULL;
828 workstation_model_name =
829 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
830 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
831 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
832 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
834 /* Check whether we use a net/cpu model differing from the default ones, in which case
835 * we should switch to the "compound" workstation model to correctly dispatch stuff to
836 * the right net/cpu models.
839 if ((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
840 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
841 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model")) {
842 XBT_INFO("Switching workstation model to compound since you changed the network and/or cpu model(s)");
843 workstation_model_name = "compound";
844 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", workstation_model_name);
847 XBT_DEBUG("Workstation model: %s", workstation_model_name);
849 find_model_description(surf_workstation_model_description,
850 workstation_model_name);
851 if (!strcmp(workstation_model_name, "compound")) {
855 xbt_assert(cpu_model_name,
856 "Set a cpu model to use with the 'compound' workstation model");
858 xbt_assert(network_model_name,
859 "Set a network model to use with the 'compound' workstation model");
862 find_model_description(surf_network_model_description,
865 find_model_description(surf_cpu_model_description, cpu_model_name);
867 surf_cpu_model_description[cpu_id].model_init_preparse();
868 surf_network_model_description[network_id].model_init_preparse();
871 XBT_DEBUG("Call workstation_model_init");
872 surf_workstation_model_description[workstation_id].model_init_preparse();
874 XBT_DEBUG("Call storage_model_init");
875 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
876 surf_storage_model_description[storage_id].model_init_preparse();
878 /* ********************************************************************* */
879 /* TUTORIAL: New model */
880 int new_model_id = -1;
881 char *new_model_name = NULL;
882 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
883 XBT_DEBUG("Call new model_init");
884 new_model_id = find_model_description(surf_new_model_description, new_model_name);
885 surf_new_model_description[new_model_id].model_init_preparse();
886 /* ********************************************************************* */
889 int sg_cfg_get_int(const char* name)
891 return xbt_cfg_get_int(_sg_cfg_set,name);
894 double sg_cfg_get_double(const char* name)
896 return xbt_cfg_get_double(_sg_cfg_set,name);
899 char* sg_cfg_get_string(const char* name)
901 return xbt_cfg_get_string(_sg_cfg_set,name);
904 int sg_cfg_get_boolean(const char* name)
906 return xbt_cfg_get_boolean(_sg_cfg_set,name);
909 void sg_cfg_get_peer(const char *name, char **peer, int *port)
911 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
914 xbt_dynar_t sg_cfg_get_dynar(const char* name)
916 return xbt_cfg_get_dynar(_sg_cfg_set,name);