1 /* Copyright (c) 2009-2010, 2012-2014. 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"
71 "You can also use --help-models to see the details of all models known by this simulator.\n"
74 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
77 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
79 "You can also use --version to get SimGrid version information.\n"
83 } else if (!strcmp(argv[i], "--help-models")) {
86 model_help("workstation", surf_workstation_model_description);
88 model_help("CPU", surf_cpu_model_description);
90 model_help("network", surf_network_model_description);
91 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
92 for (k = 0; surf_optimization_mode_description[k].name; k++)
94 surf_optimization_mode_description[k].name,
95 surf_optimization_mode_description[k].description);
96 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
99 } else if (!strcmp(argv[i], "--help-tracing")) {
115 /* callback of the plugin variable */
116 static void _sg_cfg_cb__plugin(const char *name, int pos)
121 xbt_assert(_sg_cfg_init_status < 2,
122 "Cannot load a plugin after the initialization");
124 val = xbt_cfg_get_string(_sg_cfg_set, name);
126 if (!strcmp(val, "help")) {
127 model_help("plugin", surf_plugin_description);
131 /* New Module missing */
132 int plugin_id = find_model_description(surf_plugin_description, val);
133 surf_plugin_description[plugin_id].model_init_preparse();
136 /* callback of the workstation/model variable */
137 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
141 xbt_assert(_sg_cfg_init_status < 2,
142 "Cannot change the model after the initialization");
144 val = xbt_cfg_get_string(_sg_cfg_set, name);
146 if (!strcmp(val, "help")) {
147 model_help("workstation", surf_workstation_model_description);
151 /* Make sure that the model exists */
152 find_model_description(surf_workstation_model_description, val);
155 /* callback of the vm_workstation/model variable */
156 static void _sg_cfg_cb__vm_workstation_model(const char *name, int pos)
160 xbt_assert(_sg_cfg_init_status < 2,
161 "Cannot change the model after the initialization");
163 val = xbt_cfg_get_string(_sg_cfg_set, name);
165 if (!strcmp(val, "help")) {
166 model_help("vm_workstation", surf_vm_workstation_model_description);
170 /* Make sure that the model exists */
171 find_model_description(surf_vm_workstation_model_description, val);
174 /* callback of the cpu/model variable */
175 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
179 xbt_assert(_sg_cfg_init_status < 2,
180 "Cannot change the model after the initialization");
182 val = xbt_cfg_get_string(_sg_cfg_set, name);
184 if (!strcmp(val, "help")) {
185 model_help("CPU", surf_cpu_model_description);
189 /* New Module missing */
190 find_model_description(surf_cpu_model_description, val);
193 /* callback of the cpu/model variable */
194 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
198 xbt_assert(_sg_cfg_init_status < 2,
199 "Cannot change the model after the initialization");
201 val = xbt_cfg_get_string(_sg_cfg_set, name);
203 if (!strcmp(val, "help")) {
204 model_help("optimization", surf_optimization_mode_description);
208 /* New Module missing */
209 find_model_description(surf_optimization_mode_description, val);
212 /* callback of the cpu/model variable */
213 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
217 xbt_assert(_sg_cfg_init_status < 2,
218 "Cannot change the model after the initialization");
220 val = xbt_cfg_get_string(_sg_cfg_set, name);
222 if (!strcmp(val, "help")) {
223 model_help("storage", surf_storage_model_description);
227 /* New Module missing */
228 find_model_description(surf_storage_model_description, val);
231 /* callback of the workstation_model variable */
232 static void _sg_cfg_cb__network_model(const char *name, int pos)
236 xbt_assert(_sg_cfg_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 model_help("network", surf_network_model_description);
246 /* New Module missing */
247 find_model_description(surf_network_model_description, val);
250 /* callbacks of the network models values */
251 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
253 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
256 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
258 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
261 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
263 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
266 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
268 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
271 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
273 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
276 static void _sg_cfg_cb__weight_S(const char *name, int pos)
278 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
282 /* callback of the mpi collectives */
283 static void _sg_cfg_cb__coll(const char *category,
284 s_mpi_coll_description_t * table,
285 const char *name, int pos)
289 xbt_assert(_sg_cfg_init_status < 2,
290 "Cannot change the model after the initialization");
292 val = xbt_cfg_get_string(_sg_cfg_set, name);
294 if (!strcmp(val, "help")) {
295 coll_help(category, table);
299 /* New Module missing */
300 find_coll_description(table, val);
302 static void _sg_cfg_cb__coll_gather(const char *name, int pos){
303 _sg_cfg_cb__coll("gather", mpi_coll_gather_description, name, pos);
305 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
306 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
308 static void _sg_cfg_cb__coll_allgatherv(const char *name, int pos){
309 _sg_cfg_cb__coll("allgatherv", mpi_coll_allgatherv_description, name, pos);
311 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
313 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
315 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
317 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
319 static void _sg_cfg_cb__coll_alltoallv(const char *name, int pos)
321 _sg_cfg_cb__coll("alltoallv", mpi_coll_alltoallv_description, name, pos);
323 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
325 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
327 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
329 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
331 static void _sg_cfg_cb__coll_reduce_scatter(const char *name, int pos){
332 _sg_cfg_cb__coll("reduce_scatter", mpi_coll_reduce_scatter_description, name, pos);
334 static void _sg_cfg_cb__coll_scatter(const char *name, int pos){
335 _sg_cfg_cb__coll("scatter", mpi_coll_scatter_description, name, pos);
337 static void _sg_cfg_cb__coll_barrier(const char *name, int pos){
338 _sg_cfg_cb__coll("barrier", mpi_coll_barrier_description, name, pos);
342 /* callback of the inclusion path */
343 static void _sg_cfg_cb__surf_path(const char *name, int pos)
345 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
346 xbt_dynar_push(surf_path, &path);
349 /* callback to decide if we want to use the model-checking */
350 #include "xbt_modinter.h"
352 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
355 static void _sg_cfg_cb_model_check(const char *name, int pos)
358 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
360 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
361 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");
366 extern int _sg_do_verbose_exit;
368 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
370 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
373 extern int _sg_do_clean_atexit;
375 static void _sg_cfg_cb_clean_atexit(const char *name, int pos)
377 _sg_do_clean_atexit = xbt_cfg_get_boolean(_sg_cfg_set, name);
380 static void _sg_cfg_cb_context_factory(const char *name, int pos)
382 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
385 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
387 smx_context_stack_size_was_set = 1;
388 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
391 static void _sg_cfg_cb_context_guard_size(const char *name, int pos)
393 smx_context_guard_size_was_set = 1;
394 smx_context_guard_size = xbt_cfg_get_int(_sg_cfg_set, name) * xbt_pagesize;
397 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
399 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
402 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
404 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
407 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
409 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
410 if (!strcmp(mode_name, "posix")) {
411 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
413 else if (!strcmp(mode_name, "futex")) {
414 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
416 else if (!strcmp(mode_name, "busy_wait")) {
417 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
420 xbt_die("Command line setting of the parallel synchronization mode should "
421 "be one of \"posix\", \"futex\" or \"busy_wait\"");
425 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
428 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
430 if (!COORD_HOST_LEVEL) {
431 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
432 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
435 if (COORD_HOST_LEVEL)
436 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
439 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
442 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
446 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
448 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
451 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
453 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
457 /* build description line with possible values */
458 static void describe_model(char *result,
459 const s_surf_model_description_t model_description[],
461 const char *description)
464 sprintf(result, "%s. Possible values: %s", description,
465 model_description[0].name ? model_description[0].name : "n/a");
467 for (i = 1; model_description[i].name; i++)
468 p += sprintf(p, ", %s", model_description[i].name);
470 ".\n (use 'help' as a value to see the long description of each %s)",
474 /* create the config set, register what should be and parse the command line*/
475 void sg_config_init(int *argc, char **argv)
477 char description[1024];
479 /* Create the configuration support */
480 if (_sg_cfg_init_status == 0) { /* Only create stuff if not already inited */
482 /* Plugins configuration */
483 describe_model(description, surf_plugin_description,
484 "plugin", "The plugins");
485 xbt_cfg_register(&_sg_cfg_set, "plugin", description,
486 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__plugin, NULL);
488 describe_model(description, surf_cpu_model_description,
489 "model", "The model to use for the CPU");
490 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description,
491 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
492 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/model", "Cas01");
494 describe_model(description, surf_optimization_mode_description,
496 "The optimization modes to use for the CPU");
497 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description,
498 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
499 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/optim", "Lazy");
501 describe_model(description, surf_storage_model_description,
502 "model", "The model to use for the storage");
503 xbt_cfg_register(&_sg_cfg_set, "storage/model", description,
504 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
505 xbt_cfg_setdefault_string(_sg_cfg_set, "storage/model", "default");
507 describe_model(description, surf_network_model_description,
508 "model", "The model to use for the network");
509 xbt_cfg_register(&_sg_cfg_set, "network/model", description,
510 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__network_model, NULL);
511 xbt_cfg_setdefault_string(_sg_cfg_set, "network/model", "LV08");
513 describe_model(description, surf_optimization_mode_description,
515 "The optimization modes to use for the network");
516 xbt_cfg_register(&_sg_cfg_set, "network/optim", description,
517 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
518 xbt_cfg_setdefault_string(_sg_cfg_set, "network/optim", "Lazy");
520 describe_model(description, surf_workstation_model_description,
521 "model", "The model to use for the workstation");
522 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description,
523 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__workstation_model, NULL);
524 xbt_cfg_setdefault_string(_sg_cfg_set, "workstation/model", "default");
526 describe_model(description, surf_vm_workstation_model_description,
527 "model", "The model to use for the vm workstation");
528 xbt_cfg_register(&_sg_cfg_set, "vm_workstation/model", description,
529 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__vm_workstation_model, NULL);
530 xbt_cfg_setdefault_string(_sg_cfg_set, "vm_workstation/model", "default");
532 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
533 "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)",
534 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__tcp_gamma, NULL);
535 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
537 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
538 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
539 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
540 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
542 /* The parameters of network models */
544 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
545 "Minimum gap between two overlapping sends",
546 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__sender_gap, NULL);
547 /* real default for "network/sender_gap" is set in network_smpi.cpp */
548 xbt_cfg_setdefault_double(_sg_cfg_set, "network/sender_gap", NAN);
550 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
551 "Correction factor to apply to the provided latency (default value set by network model)",
552 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__latency_factor, NULL);
553 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
555 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
556 "Correction factor to apply to the provided bandwidth (default value set by network model)",
557 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__bandwidth_factor, NULL);
558 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 1.0);
560 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
561 "Correction factor to apply to the weight of competing streams (default value set by network model)",
562 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__weight_S, NULL);
563 /* real default for "network/weight_S" is set in network_*.cpp */
564 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", NAN);
567 xbt_cfg_register(&_sg_cfg_set, "path",
568 "Lookup path for inclusions in platform and deployment XML files",
569 xbt_cfgelm_string, 1, 0, _sg_cfg_cb__surf_path, NULL);
571 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
572 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
573 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
574 xbt_cfg_setdefault_boolean(_sg_cfg_set, "cpu/maxmin_selective_update", "no");
576 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
577 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
578 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
579 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/maxmin_selective_update", "no");
582 /* do model-checking */
583 xbt_cfg_register(&_sg_cfg_set, "model-check",
584 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
585 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_model_check, NULL);
586 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", "no");
588 /* do stateful model-checking */
589 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
590 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
591 "If value=1, one checkpoint is saved for each step => faster verification, but huge memory consumption; higher values are good compromises between speed and memory consumption.",
592 xbt_cfgelm_int, 1, 1, _mc_cfg_cb_checkpoint, NULL);
593 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
595 /* do liveness model-checking */
596 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
597 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
598 xbt_cfgelm_string, 1, 1, _mc_cfg_cb_property, NULL);
599 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
601 /* do communications determinism model-checking */
602 xbt_cfg_register(&_sg_cfg_set, "model-check/communications_determinism",
603 "Enable/disable the detection of determinism in the communications schemes",
604 xbt_cfgelm_boolean, 1, 1, _mc_cfg_cb_comms_determinism, NULL);
605 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/communications_determinism", "no");
607 /* do send determinism model-checking */
608 xbt_cfg_register(&_sg_cfg_set, "model-check/send_determinism",
609 "Enable/disable the detection of send-determinism in the communications schemes",
610 xbt_cfgelm_boolean, 1, 1, _mc_cfg_cb_send_determinism, NULL);
611 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/send_determinism", "no");
613 /* Specify the kind of model-checking reduction */
614 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
615 "Specify the kind of exploration reduction (either none or DPOR)",
616 xbt_cfgelm_string, 1, 1, _mc_cfg_cb_reduce, NULL);
617 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
619 /* Enable/disable timeout for wait requests with model-checking */
620 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
621 "Enable/Disable timeout for wait requests",
622 xbt_cfgelm_boolean, 1, 1, _mc_cfg_cb_timeout, NULL);
623 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", "no");
625 /* Enable/disable global hash computation with model-checking */
626 xbt_cfg_register(&_sg_cfg_set, "model-check/hash",
627 "Enable/Disable state hash for state comparison (exprimental)",
628 xbt_cfgelm_boolean, 1, 1, _mc_cfg_cb_hash, NULL);
629 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/hash", "no");
631 /* Set max depth exploration */
632 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
633 "Specify the max depth of exploration (default : 1000)",
634 xbt_cfgelm_int, 1, 1, _mc_cfg_cb_max_depth, NULL);
635 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
637 /* Set number of visited state stored for state comparison reduction*/
638 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
639 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
640 xbt_cfgelm_int, 1, 1, _mc_cfg_cb_visited, NULL);
641 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
643 /* Set file name for dot output of graph state */
644 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
645 "Specify the name of dot file corresponding to graph state",
646 xbt_cfgelm_string, 1, 1, _mc_cfg_cb_dot_output, NULL);
647 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
650 /* do verbose-exit */
651 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
652 "Activate the \"do nothing\" mode in Ctrl-C",
653 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_verbose_exit, NULL);
654 xbt_cfg_setdefault_boolean(_sg_cfg_set, "verbose-exit", "yes");
656 /* context factory */
657 const char *dflt_ctx_fact = "thread";
659 char *p = description +
661 "Context factory to use in SIMIX. Possible values: %s",
663 #ifdef CONTEXT_UCONTEXT
664 dflt_ctx_fact = "ucontext";
665 p += sprintf(p, ", %s", dflt_ctx_fact);
668 dflt_ctx_fact = "raw";
669 p += sprintf(p, ", %s", dflt_ctx_fact);
673 xbt_cfg_register(&_sg_cfg_set, "contexts/factory", description,
674 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_context_factory, NULL);
675 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/factory", dflt_ctx_fact);
677 /* stack size of contexts in KiB */
678 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
679 "Stack size of contexts in KiB",
680 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_context_stack_size, NULL);
681 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/stack_size", 8*1024);
682 /* No, it was not set yet (the above setdefault() changed this to 1). */
683 smx_context_stack_size_was_set = 0;
685 /* guard size for contexts stacks in memory pages */
686 xbt_cfg_register(&_sg_cfg_set, "contexts/guard_size",
687 "Guard size for contexts stacks in memory pages",
688 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_context_guard_size, NULL);
689 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/guard_size", 1);
690 /* No, it was not set yet (the above setdefault() changed this to 1). */
691 smx_context_guard_size_was_set = 0;
693 /* number of parallel threads for user processes */
694 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
695 "Number of parallel threads used to execute user contexts",
696 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_nthreads, NULL);
697 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/nthreads", 1);
699 /* minimal number of user contexts to be run in parallel */
700 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
701 "Minimal number of user contexts to be run in parallel (raw contexts only)",
702 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_parallel_threshold, NULL);
703 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/parallel_threshold", 2);
705 /* synchronization mode for parallel user contexts */
706 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
707 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
708 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_contexts_parallel_mode, NULL);
710 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "futex");
711 #else //No futex on mac and posix is unimplememted yet
712 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "busy_wait");
715 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
716 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
717 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb__surf_network_coordinates, NULL);
718 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", "no");
720 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
721 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
722 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb__surf_network_crosstraffic, NULL);
723 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "no");
726 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
727 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
728 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__gtnets_jitter, NULL);
729 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
731 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
732 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
733 xbt_cfgelm_int, 0, 1, _sg_cfg_cb__gtnets_jitter_seed, NULL);
734 xbt_cfg_setdefault_int(_sg_cfg_set, "gtnets/jitter_seed", 10);
737 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
738 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
739 xbt_cfgelm_string, 1, 1, NULL, NULL);
740 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
744 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
745 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
746 xbt_cfgelm_double, 1, 1, NULL, NULL);
747 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/running_power", 20000.0);
749 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
750 "Boolean indicating whether we should display the timing after simulation.",
751 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
752 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", "no");
754 xbt_cfg_register(&_sg_cfg_set, "smpi/use_shared_malloc",
755 "Boolean indicating whether we should use shared memory when using SMPI_SHARED_MALLOC. Allows user to disable it for debug purposes.",
756 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
757 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", "yes");
759 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
760 "Minimal computation time (in seconds) not discarded, or -1 for infinity.",
761 xbt_cfgelm_double, 1, 1, NULL, NULL);
762 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/cpu_threshold", 1e-6);
764 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
765 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
766 xbt_cfgelm_int, 1, 1, NULL, NULL);
767 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/async_small_thres", 0);
769 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
770 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
771 xbt_cfgelm_int, 1, 1, NULL, NULL);
772 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/send_is_detached_thres", 65536);
774 xbt_cfg_register(&_sg_cfg_set, "smpi/privatize_global_variables",
775 "Boolean indicating whether we should privatize global variable at runtime.",
776 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
777 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/privatize_global_variables", "no");
779 //For smpi/bw_factor and smpi/lat_factor
780 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
781 //test is if( size >= thresholdN ) return valueN;
782 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
783 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
784 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
785 "Bandwidth factors for smpi.",
786 xbt_cfgelm_string, 1, 1, NULL, NULL);
787 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");
789 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
790 "Latency factors for smpi.",
791 xbt_cfgelm_string, 1, 1, NULL, NULL);
792 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");
794 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
795 "Small messages timings (MPI_Send minimum time for small messages)",
796 xbt_cfgelm_string, 1, 1, NULL, NULL);
797 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
799 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
800 "Small messages timings (MPI_Isend minimum time for small messages)",
801 xbt_cfgelm_string, 1, 1, NULL, NULL);
802 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
804 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
805 "Small messages timings (MPI_Recv minimum time for small messages)",
806 xbt_cfgelm_string, 1, 1, NULL, NULL);
807 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
808 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
809 "Minimum time to inject inside a call to MPI_Iprobe",
810 xbt_cfgelm_double, 1, 1, NULL, NULL);
811 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/iprobe", 1e-4);
812 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
813 "Which collective selector to use",
814 xbt_cfgelm_string, 1, 1, NULL, NULL);
815 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/coll_selector", "default");
817 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
818 "Which collective to use for gather",
819 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_gather, NULL);
821 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
822 "Which collective to use for allgather",
823 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_allgather, NULL);
825 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
826 "Which collective to use for barrier",
827 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_barrier, NULL);
829 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
830 "Which collective to use for reduce_scatter",
831 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_reduce_scatter, NULL);
833 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
834 "Which collective to use for scatter",
835 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_scatter, NULL);
837 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
838 "Which collective to use for allgatherv",
839 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_allgatherv, NULL);
841 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
842 "Which collective to use for allreduce",
843 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_allreduce, NULL);
845 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
846 "Which collective to use for alltoall",
847 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_alltoall, NULL);
849 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
850 "Which collective to use for alltoallv",
851 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_alltoallv, NULL);
853 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
854 "Which collective to use for bcast",
855 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_bcast, NULL);
857 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
858 "Which collective to use for reduce",
859 xbt_cfgelm_string, 0, 1, &_sg_cfg_cb__coll_reduce, NULL);
862 xbt_cfg_register(&_sg_cfg_set, "clean_atexit",
863 "\"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.",
864 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_clean_atexit, NULL);
865 xbt_cfg_setdefault_boolean(_sg_cfg_set, "clean_atexit", "yes");
868 /* retrieves the current directory of the current process */
869 const char *initial_path = __surf_get_initial_path();
870 xbt_assert((initial_path),
871 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
873 surf_path = xbt_dynar_new(sizeof(char *), NULL);
874 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
877 xbt_cfg_check(_sg_cfg_set);
878 _sg_cfg_init_status = 1;
880 sg_config_cmd_line(argc, argv);
882 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
885 XBT_WARN("Call to sg_config_init() after initialization ignored");
889 void sg_config_finalize(void)
891 if (!_sg_cfg_init_status)
892 return; /* Not initialized yet. Nothing to do */
894 xbt_cfg_free(&_sg_cfg_set);
895 _sg_cfg_init_status = 0;
898 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
899 void surf_config_models_setup()
901 const char *workstation_model_name;
902 const char *vm_workstation_model_name;
903 int workstation_id = -1;
904 int vm_workstation_id = -1;
905 char *network_model_name = NULL;
906 char *cpu_model_name = NULL;
908 char *storage_model_name = NULL;
910 workstation_model_name =
911 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
912 vm_workstation_model_name =
913 xbt_cfg_get_string(_sg_cfg_set, "vm_workstation/model");
914 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
915 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
916 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
918 /* Check whether we use a net/cpu model differing from the default ones, in which case
919 * we should switch to the "compound" workstation model to correctly dispatch stuff to
920 * the right net/cpu models.
923 if ((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
924 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
925 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model")) {
926 XBT_INFO("Switching workstation model to compound since you changed the network and/or cpu model(s)");
927 workstation_model_name = "compound";
928 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", workstation_model_name);
931 XBT_DEBUG("Workstation model: %s", workstation_model_name);
933 find_model_description(surf_workstation_model_description,
934 workstation_model_name);
935 if (!strcmp(workstation_model_name, "compound")) {
939 xbt_assert(cpu_model_name,
940 "Set a cpu model to use with the 'compound' workstation model");
942 xbt_assert(network_model_name,
943 "Set a network model to use with the 'compound' workstation model");
946 find_model_description(surf_network_model_description,
949 find_model_description(surf_cpu_model_description, cpu_model_name);
951 surf_cpu_model_description[cpu_id].model_init_preparse();
952 surf_network_model_description[network_id].model_init_preparse();
955 XBT_DEBUG("Call workstation_model_init");
956 surf_workstation_model_description[workstation_id].model_init_preparse();
958 XBT_DEBUG("Call vm_workstation_model_init");
959 vm_workstation_id = find_model_description(surf_vm_workstation_model_description,
960 vm_workstation_model_name);
961 surf_vm_workstation_model_description[vm_workstation_id].model_init_preparse();
963 XBT_DEBUG("Call storage_model_init");
964 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
965 surf_storage_model_description[storage_id].model_init_preparse();
969 int sg_cfg_is_default_value(const char *name)
971 return xbt_cfg_is_default_value(_sg_cfg_set, name);
974 int sg_cfg_get_int(const char* name)
976 return xbt_cfg_get_int(_sg_cfg_set, name);
979 double sg_cfg_get_double(const char* name)
981 return xbt_cfg_get_double(_sg_cfg_set, name);
984 char* sg_cfg_get_string(const char* name)
986 return xbt_cfg_get_string(_sg_cfg_set, name);
989 int sg_cfg_get_boolean(const char* name)
991 return xbt_cfg_get_boolean(_sg_cfg_set, name);
994 void sg_cfg_get_peer(const char *name, char **peer, int *port)
996 xbt_cfg_get_peer(_sg_cfg_set, name, peer, port);
999 xbt_dynar_t sg_cfg_get_dynar(const char* name)
1001 return xbt_cfg_get_dynar(_sg_cfg_set, name);