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 /* 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
33 * integrated also, platform construction ongoing or done.
34 * (Config cannot be changed anymore!)
36 int _sg_cfg_init_status = 0;
38 /* instruct the upper layer (simix or simdag) to exit as soon as possible
40 int _sg_cfg_exit_asap = 0;
42 #define sg_cfg_exit_early() do { _sg_cfg_exit_asap = 1; return; } while (0)
44 /* Parse the command line, looking for options */
45 static void sg_config_cmd_line(int *argc, char **argv)
51 for (j = i = 1; i < *argc; i++) {
52 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
53 opt = strchr(argv[i], '=');
56 xbt_cfg_set_parse(_sg_cfg_set, opt);
57 XBT_DEBUG("Did apply '%s' as config setting", opt);
58 } else if (!strcmp(argv[i], "--version")) {
59 printf("%s\n", SIMGRID_VERSION_STRING);
61 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
63 ("Description of the configuration accepted by this simulator:\n");
64 xbt_cfg_help(_sg_cfg_set);
67 "Each of these configurations can be used by adding\n"
68 " --cfg=<option name>:<option value>\n"
69 "to the command line.\n"
70 "You can also use --help-models to see the details of all models known by this simulator.\n"
73 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
76 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
78 "You can also use --version to get SimGrid version information.\n"
82 } else if (!strcmp(argv[i], "--help-models")) {
85 model_help("workstation", surf_workstation_model_description);
87 model_help("CPU", surf_cpu_model_description);
89 model_help("network", surf_network_model_description);
90 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
91 for (k = 0; surf_optimization_mode_description[k].name; k++)
93 surf_optimization_mode_description[k].name,
94 surf_optimization_mode_description[k].description);
95 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
98 } else if (!strcmp(argv[i], "--help-tracing")) {
114 /* callback of the workstation/model variable */
115 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
119 xbt_assert(_sg_cfg_init_status < 2,
120 "Cannot change the model after the initialization");
122 val = xbt_cfg_get_string(_sg_cfg_set, name);
124 if (!strcmp(val, "help")) {
125 model_help("workstation", surf_workstation_model_description);
129 /* Make sure that the model exists */
130 find_model_description(surf_workstation_model_description, val);
133 /* callback of the cpu/model variable */
134 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
138 xbt_assert(_sg_cfg_init_status < 2,
139 "Cannot change the model after the initialization");
141 val = xbt_cfg_get_string(_sg_cfg_set, name);
143 if (!strcmp(val, "help")) {
144 model_help("CPU", surf_cpu_model_description);
148 /* New Module missing */
149 find_model_description(surf_cpu_model_description, val);
152 /* callback of the cpu/model variable */
153 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
157 xbt_assert(_sg_cfg_init_status < 2,
158 "Cannot change the model after the initialization");
160 val = xbt_cfg_get_string(_sg_cfg_set, name);
162 if (!strcmp(val, "help")) {
163 model_help("optimization", surf_optimization_mode_description);
167 /* New Module missing */
168 find_model_description(surf_optimization_mode_description, val);
171 /* callback of the cpu/model variable */
172 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
176 xbt_assert(_sg_cfg_init_status < 2,
177 "Cannot change the model after the initialization");
179 val = xbt_cfg_get_string(_sg_cfg_set, name);
181 if (!strcmp(val, "help")) {
182 model_help("storage", surf_storage_model_description);
186 /* New Module missing */
187 find_model_description(surf_storage_model_description, val);
190 /* callback of the workstation_model variable */
191 static void _sg_cfg_cb__network_model(const char *name, int pos)
195 xbt_assert(_sg_cfg_init_status < 2,
196 "Cannot change the model after the initialization");
198 val = xbt_cfg_get_string(_sg_cfg_set, name);
200 if (!strcmp(val, "help")) {
201 model_help("network", surf_network_model_description);
205 /* New Module missing */
206 find_model_description(surf_network_model_description, val);
209 /* callbacks of the network models values */
210 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
212 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
215 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
217 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
220 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
222 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
225 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
227 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
230 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
232 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
235 static void _sg_cfg_cb__weight_S(const char *name, int pos)
237 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
241 /* callback of the mpi collectives */
242 static void _sg_cfg_cb__coll(const char *category,
243 s_mpi_coll_description_t * table,
244 const char *name, int pos)
248 xbt_assert(_sg_cfg_init_status < 2,
249 "Cannot change the model after the initialization");
251 val = xbt_cfg_get_string(_sg_cfg_set, name);
253 if (!strcmp(val, "help")) {
254 coll_help(category, table);
258 /* New Module missing */
259 find_coll_description(table, val);
261 static void _sg_cfg_cb__coll_gather(const char *name, int pos){
262 _sg_cfg_cb__coll("gather", mpi_coll_gather_description, name, pos);
264 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
265 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
267 static void _sg_cfg_cb__coll_allgatherv(const char *name, int pos){
268 _sg_cfg_cb__coll("allgatherv", mpi_coll_allgatherv_description, name, pos);
270 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
272 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
274 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
276 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
278 static void _sg_cfg_cb__coll_alltoallv(const char *name, int pos)
280 _sg_cfg_cb__coll("alltoallv", mpi_coll_alltoallv_description, name, pos);
282 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
284 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
286 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
288 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
290 static void _sg_cfg_cb__coll_reduce_scatter(const char *name, int pos){
291 _sg_cfg_cb__coll("reduce_scatter", mpi_coll_reduce_scatter_description, name, pos);
293 static void _sg_cfg_cb__coll_scatter(const char *name, int pos){
294 _sg_cfg_cb__coll("scatter", mpi_coll_scatter_description, name, pos);
296 static void _sg_cfg_cb__coll_barrier(const char *name, int pos){
297 _sg_cfg_cb__coll("barrier", mpi_coll_barrier_description, name, pos);
301 /* callback of the inclusion path */
302 static void _sg_cfg_cb__surf_path(const char *name, int pos)
304 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
305 xbt_dynar_push(surf_path, &path);
308 /* callback to decide if we want to use the model-checking */
309 #include "xbt_modinter.h"
311 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
314 static void _sg_cfg_cb_model_check(const char *name, int pos)
317 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
319 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
320 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");
325 extern int _sg_do_verbose_exit;
327 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
329 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
332 extern int _sg_do_clean_atexit;
334 static void _sg_cfg_cb_clean_atexit(const char *name, int pos)
336 _sg_do_clean_atexit = xbt_cfg_get_boolean(_sg_cfg_set, name);
339 static void _sg_cfg_cb_context_factory(const char *name, int pos)
341 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
344 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
346 smx_context_stack_size_was_set = 1;
347 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
350 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
352 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
355 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
357 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
360 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
362 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
363 if (!strcmp(mode_name, "posix")) {
364 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
366 else if (!strcmp(mode_name, "futex")) {
367 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
369 else if (!strcmp(mode_name, "busy_wait")) {
370 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
373 xbt_die("Command line setting of the parallel synchronization mode should "
374 "be one of \"posix\", \"futex\" or \"busy_wait\"");
378 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
381 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
383 if (!COORD_HOST_LEVEL) {
384 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
385 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
388 if (COORD_HOST_LEVEL)
389 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
392 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
395 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
399 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
401 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
404 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
406 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
410 /* create the config set, register what should be and parse the command line*/
411 void sg_config_init(int *argc, char **argv)
413 char *description = xbt_malloc(1024);
417 /* Create the configuration support */
418 if (_sg_cfg_init_status == 0) { /* Only create stuff if not already inited */
420 "The model to use for the CPU. Possible values: ");
422 while (*(++p) != '\0');
423 for (i = 0; surf_cpu_model_description[i].name; i++)
424 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
425 surf_cpu_model_description[i].name);
427 ".\n (use 'help' as a value to see the long description of each model)");
428 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description,
429 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
430 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/model", "Cas01");
432 while (*(++p) != '\0');
433 for (i = 0; surf_optimization_mode_description[i].name; i++)
434 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
435 surf_optimization_mode_description[i].name);
437 ".\n (use 'help' as a value to see the long description of each optimization mode)");
438 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description,
439 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
440 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/optim", "Lazy");
443 "The model to use for the storage. Possible values: ");
445 while (*(++p) != '\0');
446 for (i = 0; surf_storage_model_description[i].name; i++)
447 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
448 surf_storage_model_description[i].name);
450 ".\n (use 'help' as a value to see the long description of each model)");
451 xbt_cfg_register(&_sg_cfg_set, "storage/model", description,
452 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
453 xbt_cfg_setdefault_string(_sg_cfg_set, "storage/model", "default");
455 /* ********************************************************************* */
456 /* TUTORIAL: New model */
458 "The model to use for the New model. Possible values: ");
460 while (*(++p) != '\0');
461 for (i = 0; surf_new_model_description[i].name; i++)
462 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
463 surf_new_model_description[i].name);
465 ".\n (use 'help' as a value to see the long description of each model)");
466 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description,
467 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
468 xbt_cfg_setdefault_string(_sg_cfg_set, "new_model/model", "default");
469 /* ********************************************************************* */
472 "The model to use for the network. Possible values: ");
474 while (*(++p) != '\0');
475 for (i = 0; surf_network_model_description[i].name; i++)
476 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
477 surf_network_model_description[i].name);
479 ".\n (use 'help' as a value to see the long description of each model)");
480 xbt_cfg_register(&_sg_cfg_set, "network/model", description,
481 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__network_model, NULL);
482 xbt_cfg_setdefault_string(_sg_cfg_set, "network/model", "LV08");
485 "The optimization modes to use for the network. Possible values: ");
487 while (*(++p) != '\0');
488 for (i = 0; surf_optimization_mode_description[i].name; i++)
489 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
490 surf_optimization_mode_description[i].name);
492 ".\n (use 'help' as a value to see the long description of each optimization mode)");
493 xbt_cfg_register(&_sg_cfg_set, "network/optim", description,
494 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
495 xbt_cfg_setdefault_string(_sg_cfg_set, "network/optim", "Lazy");
498 "The model to use for the workstation. Possible values: ");
500 while (*(++p) != '\0');
501 for (i = 0; surf_workstation_model_description[i].name; i++)
502 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
503 surf_workstation_model_description[i].name);
505 ".\n (use 'help' as a value to see the long description of each model)");
506 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description,
507 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__workstation_model, NULL);
508 xbt_cfg_setdefault_string(_sg_cfg_set, "workstation/model", "default");
510 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
511 "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)",
512 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__tcp_gamma, NULL);
513 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
515 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
516 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
517 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
518 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
520 /* The parameters of network models */
522 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
523 "Minimum gap between two overlapping sends",
524 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__sender_gap, NULL);
525 /* default for "network/sender_gap" is set in network.c */
527 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
528 "Correction factor to apply to the provided latency (default value set by network model)",
529 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__latency_factor, NULL);
530 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
532 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
533 "Correction factor to apply to the provided bandwidth (default value set by network model)",
534 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__bandwidth_factor, NULL);
535 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 1.0);
537 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
538 "Correction factor to apply to the weight of competing streams (default value set by network model)",
539 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__weight_S, NULL);
540 /* default for "network/weight_S" is set in network.c */
543 xbt_cfg_register(&_sg_cfg_set, "path",
544 "Lookup path for inclusions in platform and deployment XML files",
545 xbt_cfgelm_string, 0, 0, _sg_cfg_cb__surf_path, NULL);
547 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
548 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
549 xbt_cfgelm_boolean, 0, 1, NULL, NULL);
550 xbt_cfg_setdefault_boolean(_sg_cfg_set, "cpu/maxmin_selective_update", "no");
552 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
553 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
554 xbt_cfgelm_boolean, 0, 1, NULL, NULL);
555 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/maxmin_selective_update", "no");
558 /* do model-checking */
559 xbt_cfg_register(&_sg_cfg_set, "model-check",
560 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
561 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb_model_check, NULL);
562 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", "no");
564 /* do stateful model-checking */
565 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
566 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
567 "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.",
568 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_checkpoint, NULL);
569 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
571 /* do liveness model-checking */
572 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
573 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
574 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_property, NULL);
575 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
577 /* Specify the kind of model-checking reduction */
578 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
579 "Specify the kind of exploration reduction (either none or DPOR)",
580 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_reduce, NULL);
581 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
583 /* Enable/disable timeout for wait requests with model-checking */
584 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
585 "Enable/Disable timeout for wait requests",
586 xbt_cfgelm_boolean, 0, 1, _mc_cfg_cb_timeout, NULL);
587 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", "no");
589 /* Set max depth exploration */
590 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
591 "Specify the max depth of exploration (default : 1000)",
592 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_max_depth, NULL);
593 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
595 /* Set number of visited state stored for state comparison reduction*/
596 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
597 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
598 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_visited, NULL);
599 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
601 /* Set file name for dot output of graph state */
602 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
603 "Specify the name of dot file corresponding to graph state",
604 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_dot_output, NULL);
605 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
608 /* do verbose-exit */
609 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
610 "Activate the \"do nothing\" mode in Ctrl-C",
611 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb_verbose_exit, NULL);
612 xbt_cfg_setdefault_boolean(_sg_cfg_set, "verbose-exit", "yes");
614 /* context factory */
616 "Context factory to use in SIMIX. Possible values: thread");
617 const char *dflt_ctx_fact = "thread";
618 #ifdef CONTEXT_UCONTEXT
619 dflt_ctx_fact = "ucontext";
620 strcat(strcat(description, ", "), dflt_ctx_fact);
623 dflt_ctx_fact = "raw";
624 strcat(strcat(description, ", "), dflt_ctx_fact);
626 strcat(description, ".");
627 xbt_cfg_register(&_sg_cfg_set, "contexts/factory", description,
628 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_context_factory, NULL);
629 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/factory", dflt_ctx_fact);
631 /* stack size of contexts in Ko */
632 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
633 "Stack size of contexts in Kib",
634 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_context_stack_size, NULL);
635 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/stack_size", 128);
636 /* No, it was not set yet (the above setdefault() changed this to 1). */
637 smx_context_stack_size_was_set = 0;
639 /* number of parallel threads for user processes */
640 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
641 "Number of parallel threads used to execute user contexts",
642 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_nthreads, NULL);
643 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/nthreads", 1);
645 /* minimal number of user contexts to be run in parallel */
646 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
647 "Minimal number of user contexts to be run in parallel (raw contexts only)",
648 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_parallel_threshold, NULL);
649 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/parallel_threshold", 2);
651 /* synchronization mode for parallel user contexts */
652 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
653 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
654 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_contexts_parallel_mode, NULL);
656 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "futex");
657 #else //No futex on mac and posix is unimplememted yet
658 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "busy_wait");
661 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
662 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
663 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb__surf_network_coordinates, NULL);
664 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", "no");
666 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
667 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
668 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb__surf_network_crosstraffic, NULL);
669 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "no");
672 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
673 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
674 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__gtnets_jitter, NULL);
675 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
677 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
678 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
679 xbt_cfgelm_int, 0, 1, _sg_cfg_cb__gtnets_jitter_seed, NULL);
680 xbt_cfg_setdefault_int(_sg_cfg_set, "gtnets/jitter_seed", 10);
683 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
684 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
685 xbt_cfgelm_string, 1, 1, NULL, NULL);
686 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
690 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
691 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
692 xbt_cfgelm_double, 1, 1, NULL, NULL);
693 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/running_power", 20000.0);
695 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
696 "Boolean indicating whether we should display the timing after simulation.",
697 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
698 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", "no");
700 xbt_cfg_register(&_sg_cfg_set, "smpi/use_shared_malloc",
701 "Boolean indicating whether we should use shared memory when using SMPI_SHARED_MALLOC. Allows user to disable it for debug purposes.",
702 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
703 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", "yes");
705 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
706 "Minimal computation time (in seconds) not discarded, or -1 for infinity.",
707 xbt_cfgelm_double, 1, 1, NULL, NULL);
708 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/cpu_threshold", 1e-6);
710 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
711 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
712 xbt_cfgelm_int, 1, 1, NULL, NULL);
713 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/async_small_thres", 0);
715 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
716 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
717 xbt_cfgelm_int, 1, 1, NULL, NULL);
718 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/send_is_detached_thres", 65536);
720 //For smpi/bw_factor and smpi/lat_factor
721 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
722 //test is if( size >= thresholdN ) return valueN;
723 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
724 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
725 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
726 "Bandwidth factors for smpi.",
727 xbt_cfgelm_string, 1, 1, NULL, NULL);
728 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");
730 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
731 "Latency factors for smpi.",
732 xbt_cfgelm_string, 1, 1, NULL, NULL);
733 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");
735 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
736 "Small messages timings (MPI_Send minimum time for small messages)",
737 xbt_cfgelm_string, 1, 1, NULL, NULL);
738 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
740 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
741 "Small messages timings (MPI_Isend minimum time for small messages)",
742 xbt_cfgelm_string, 1, 1, NULL, NULL);
743 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
745 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
746 "Small messages timings (MPI_Recv minimum time for small messages)",
747 xbt_cfgelm_string, 1, 1, NULL, NULL);
748 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
749 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
750 "Minimum time to inject inside a call to MPI_Iprobe",
751 xbt_cfgelm_double, 1, 1, NULL, NULL);
752 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/iprobe", 1e-4);
753 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
754 "Which collective selector to use",
755 xbt_cfgelm_string, 1, 1, NULL, NULL);
756 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/coll_selector", "default");
758 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
759 "Which collective to use for gather",
760 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_gather, NULL);
762 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
763 "Which collective to use for allgather",
764 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allgather, NULL);
766 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
767 "Which collective to use for barrier",
768 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_barrier, NULL);
770 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
771 "Which collective to use for reduce_scatter",
772 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_reduce_scatter, NULL);
774 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
775 "Which collective to use for scatter",
776 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_scatter, NULL);
778 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
779 "Which collective to use for allgatherv",
780 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allgatherv, NULL);
782 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
783 "Which collective to use for allreduce",
784 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allreduce, NULL);
786 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
787 "Which collective to use for alltoall",
788 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_alltoall, NULL);
790 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
791 "Which collective to use for alltoallv",
792 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_alltoallv, NULL);
794 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
795 "Which collective to use for bcast",
796 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_bcast, NULL);
798 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
799 "Which collective to use for reduce",
800 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_reduce, NULL);
803 xbt_cfg_register(&_sg_cfg_set, "clean_atexit",
804 "\"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.",
805 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_clean_atexit, NULL);
806 xbt_cfg_setdefault_boolean(_sg_cfg_set, "clean_atexit", "yes");
809 /* retrieves the current directory of the current process */
810 const char *initial_path = __surf_get_initial_path();
811 xbt_assert((initial_path),
812 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
814 surf_path = xbt_dynar_new(sizeof(char *), NULL);
815 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
818 _sg_cfg_init_status = 1;
820 sg_config_cmd_line(argc, argv);
822 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
825 XBT_WARN("Call to sg_config_init() after initialization ignored");
828 xbt_free(description);
831 void sg_config_finalize(void)
833 if (!_sg_cfg_init_status)
834 return; /* Not initialized yet. Nothing to do */
836 xbt_cfg_free(&_sg_cfg_set);
837 _sg_cfg_init_status = 0;
840 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
841 void surf_config_models_setup()
843 const char *workstation_model_name;
844 int workstation_id = -1;
845 char *network_model_name = NULL;
846 char *cpu_model_name = NULL;
848 char *storage_model_name = NULL;
850 workstation_model_name =
851 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
852 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
853 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
854 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
856 /* Check whether we use a net/cpu model differing from the default ones, in which case
857 * we should switch to the "compound" workstation model to correctly dispatch stuff to
858 * the right net/cpu models.
861 if ((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
862 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
863 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model")) {
864 XBT_INFO("Switching workstation model to compound since you changed the network and/or cpu model(s)");
865 workstation_model_name = "compound";
866 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", workstation_model_name);
869 XBT_DEBUG("Workstation model: %s", workstation_model_name);
871 find_model_description(surf_workstation_model_description,
872 workstation_model_name);
873 if (!strcmp(workstation_model_name, "compound")) {
877 xbt_assert(cpu_model_name,
878 "Set a cpu model to use with the 'compound' workstation model");
880 xbt_assert(network_model_name,
881 "Set a network model to use with the 'compound' workstation model");
884 find_model_description(surf_network_model_description,
887 find_model_description(surf_cpu_model_description, cpu_model_name);
889 surf_cpu_model_description[cpu_id].model_init_preparse();
890 surf_network_model_description[network_id].model_init_preparse();
893 XBT_DEBUG("Call workstation_model_init");
894 surf_workstation_model_description[workstation_id].model_init_preparse();
896 XBT_DEBUG("Call storage_model_init");
897 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
898 surf_storage_model_description[storage_id].model_init_preparse();
900 /* ********************************************************************* */
901 /* TUTORIAL: New model */
902 int new_model_id = -1;
903 char *new_model_name = NULL;
904 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
905 XBT_DEBUG("Call new model_init");
906 new_model_id = find_model_description(surf_new_model_description, new_model_name);
907 surf_new_model_description[new_model_id].model_init_preparse();
908 /* ********************************************************************* */
911 int sg_cfg_get_int(const char* name)
913 return xbt_cfg_get_int(_sg_cfg_set,name);
916 double sg_cfg_get_double(const char* name)
918 return xbt_cfg_get_double(_sg_cfg_set,name);
921 char* sg_cfg_get_string(const char* name)
923 return xbt_cfg_get_string(_sg_cfg_set,name);
926 int sg_cfg_get_boolean(const char* name)
928 return xbt_cfg_get_boolean(_sg_cfg_set,name);
931 void sg_cfg_get_peer(const char *name, char **peer, int *port)
933 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
936 xbt_dynar_t sg_cfg_get_dynar(const char* name)
938 return xbt_cfg_get_dynar(_sg_cfg_set,name);