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], "--cfg-help") || !strcmp(argv[i], "--help")) {
60 ("Description of the configuration accepted by this simulator:\n");
61 xbt_cfg_help(_sg_cfg_set);
64 "Each of these configurations can be used by adding\n"
65 " --cfg=<option name>:<option value>\n"
66 "to the command line.\n"
67 "You can also use --help-models to see the details of all models known by this simulator.\n"
70 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
73 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
77 } else if (!strcmp(argv[i], "--help-models")) {
80 model_help("workstation", surf_workstation_model_description);
82 model_help("CPU", surf_cpu_model_description);
84 model_help("network", surf_network_model_description);
85 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
86 for (k = 0; surf_optimization_mode_description[k].name; k++)
88 surf_optimization_mode_description[k].name,
89 surf_optimization_mode_description[k].description);
90 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
93 } else if (!strcmp(argv[i], "--help-tracing")) {
109 /* callback of the workstation/model variable */
110 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
114 xbt_assert(_sg_cfg_init_status < 2,
115 "Cannot change the model after the initialization");
117 val = xbt_cfg_get_string(_sg_cfg_set, name);
119 if (!strcmp(val, "help")) {
120 model_help("workstation", surf_workstation_model_description);
124 /* Make sure that the model exists */
125 find_model_description(surf_workstation_model_description, val);
128 /* callback of the cpu/model variable */
129 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
133 xbt_assert(_sg_cfg_init_status < 2,
134 "Cannot change the model after the initialization");
136 val = xbt_cfg_get_string(_sg_cfg_set, name);
138 if (!strcmp(val, "help")) {
139 model_help("CPU", surf_cpu_model_description);
143 /* New Module missing */
144 find_model_description(surf_cpu_model_description, val);
147 /* callback of the cpu/model variable */
148 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
152 xbt_assert(_sg_cfg_init_status < 2,
153 "Cannot change the model after the initialization");
155 val = xbt_cfg_get_string(_sg_cfg_set, name);
157 if (!strcmp(val, "help")) {
158 model_help("optimization", surf_optimization_mode_description);
162 /* New Module missing */
163 find_model_description(surf_optimization_mode_description, val);
166 /* callback of the cpu/model variable */
167 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
171 xbt_assert(_sg_cfg_init_status < 2,
172 "Cannot change the model after the initialization");
174 val = xbt_cfg_get_string(_sg_cfg_set, name);
176 if (!strcmp(val, "help")) {
177 model_help("storage", surf_storage_model_description);
181 /* New Module missing */
182 find_model_description(surf_storage_model_description, val);
185 /* callback of the workstation_model variable */
186 static void _sg_cfg_cb__network_model(const char *name, int pos)
190 xbt_assert(_sg_cfg_init_status < 2,
191 "Cannot change the model after the initialization");
193 val = xbt_cfg_get_string(_sg_cfg_set, name);
195 if (!strcmp(val, "help")) {
196 model_help("network", surf_network_model_description);
200 /* New Module missing */
201 find_model_description(surf_network_model_description, val);
204 /* callbacks of the network models values */
205 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
207 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
210 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
212 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
215 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
217 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
220 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
222 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
225 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
227 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
230 static void _sg_cfg_cb__weight_S(const char *name, int pos)
232 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
236 /* callback of the mpi collectives */
237 static void _sg_cfg_cb__coll(const char *category,
238 s_mpi_coll_description_t * table,
239 const char *name, int pos)
243 xbt_assert(_sg_cfg_init_status < 2,
244 "Cannot change the model after the initialization");
246 val = xbt_cfg_get_string(_sg_cfg_set, name);
248 if (!strcmp(val, "help")) {
249 coll_help(category, table);
253 /* New Module missing */
254 find_coll_description(table, val);
256 static void _sg_cfg_cb__coll_gather(const char *name, int pos){
257 _sg_cfg_cb__coll("gather", mpi_coll_gather_description, name, pos);
259 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
260 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
262 static void _sg_cfg_cb__coll_allgatherv(const char *name, int pos){
263 _sg_cfg_cb__coll("allgatherv", mpi_coll_allgatherv_description, name, pos);
265 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
267 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
269 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
271 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
273 static void _sg_cfg_cb__coll_alltoallv(const char *name, int pos)
275 _sg_cfg_cb__coll("alltoallv", mpi_coll_alltoallv_description, name, pos);
277 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
279 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
281 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
283 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
285 static void _sg_cfg_cb__coll_reduce_scatter(const char *name, int pos){
286 _sg_cfg_cb__coll("reduce_scatter", mpi_coll_reduce_scatter_description, name, pos);
288 static void _sg_cfg_cb__coll_scatter(const char *name, int pos){
289 _sg_cfg_cb__coll("scatter", mpi_coll_scatter_description, name, pos);
291 static void _sg_cfg_cb__coll_barrier(const char *name, int pos){
292 _sg_cfg_cb__coll("barrier", mpi_coll_barrier_description, name, pos);
296 /* callback of the inclusion path */
297 static void _sg_cfg_cb__surf_path(const char *name, int pos)
299 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
300 xbt_dynar_push(surf_path, &path);
303 /* callback to decide if we want to use the model-checking */
304 #include "xbt_modinter.h"
306 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
309 static void _sg_cfg_cb_model_check(const char *name, int pos)
312 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
314 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
315 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");
320 extern int _sg_do_verbose_exit;
322 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
324 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
327 extern int _sg_do_clean_atexit;
329 static void _sg_cfg_cb_clean_atexit(const char *name, int pos)
331 _sg_do_clean_atexit = xbt_cfg_get_boolean(_sg_cfg_set, name);
334 static void _sg_cfg_cb_context_factory(const char *name, int pos)
336 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
339 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
341 smx_context_stack_size_was_set = 1;
342 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
345 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
347 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
350 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
352 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
355 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
357 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
358 if (!strcmp(mode_name, "posix")) {
359 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
361 else if (!strcmp(mode_name, "futex")) {
362 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
364 else if (!strcmp(mode_name, "busy_wait")) {
365 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
368 xbt_die("Command line setting of the parallel synchronization mode should "
369 "be one of \"posix\", \"futex\" or \"busy_wait\"");
373 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
376 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
378 if (!COORD_HOST_LEVEL) {
379 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
380 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
383 if (COORD_HOST_LEVEL)
384 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
387 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
390 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
394 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
396 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
399 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
401 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
405 /* create the config set, register what should be and parse the command line*/
406 void sg_config_init(int *argc, char **argv)
408 char *description = xbt_malloc(1024);
412 /* Create the configuration support */
413 if (_sg_cfg_init_status == 0) { /* Only create stuff if not already inited */
415 "The model to use for the CPU. Possible values: ");
417 while (*(++p) != '\0');
418 for (i = 0; surf_cpu_model_description[i].name; i++)
419 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
420 surf_cpu_model_description[i].name);
422 ".\n (use 'help' as a value to see the long description of each model)");
423 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description,
424 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
425 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/model", "Cas01");
427 while (*(++p) != '\0');
428 for (i = 0; surf_optimization_mode_description[i].name; i++)
429 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
430 surf_optimization_mode_description[i].name);
432 ".\n (use 'help' as a value to see the long description of each optimization mode)");
433 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description,
434 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
435 xbt_cfg_setdefault_string(_sg_cfg_set, "cpu/optim", "Lazy");
438 "The model to use for the storage. Possible values: ");
440 while (*(++p) != '\0');
441 for (i = 0; surf_storage_model_description[i].name; i++)
442 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
443 surf_storage_model_description[i].name);
445 ".\n (use 'help' as a value to see the long description of each model)");
446 xbt_cfg_register(&_sg_cfg_set, "storage/model", description,
447 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
448 xbt_cfg_setdefault_string(_sg_cfg_set, "storage/model", "default");
450 /* ********************************************************************* */
451 /* TUTORIAL: New model */
453 "The model to use for the New model. Possible values: ");
455 while (*(++p) != '\0');
456 for (i = 0; surf_new_model_description[i].name; i++)
457 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
458 surf_new_model_description[i].name);
460 ".\n (use 'help' as a value to see the long description of each model)");
461 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description,
462 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__storage_mode, NULL);
463 xbt_cfg_setdefault_string(_sg_cfg_set, "new_model/model", "default");
464 /* ********************************************************************* */
467 "The model to use for the network. Possible values: ");
469 while (*(++p) != '\0');
470 for (i = 0; surf_network_model_description[i].name; i++)
471 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
472 surf_network_model_description[i].name);
474 ".\n (use 'help' as a value to see the long description of each model)");
475 xbt_cfg_register(&_sg_cfg_set, "network/model", description,
476 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__network_model, NULL);
477 xbt_cfg_setdefault_string(_sg_cfg_set, "network/model", "LV08");
480 "The optimization modes to use for the network. Possible values: ");
482 while (*(++p) != '\0');
483 for (i = 0; surf_optimization_mode_description[i].name; i++)
484 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
485 surf_optimization_mode_description[i].name);
487 ".\n (use 'help' as a value to see the long description of each optimization mode)");
488 xbt_cfg_register(&_sg_cfg_set, "network/optim", description,
489 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
490 xbt_cfg_setdefault_string(_sg_cfg_set, "network/optim", "Lazy");
493 "The model to use for the workstation. Possible values: ");
495 while (*(++p) != '\0');
496 for (i = 0; surf_workstation_model_description[i].name; i++)
497 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
498 surf_workstation_model_description[i].name);
500 ".\n (use 'help' as a value to see the long description of each model)");
501 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description,
502 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__workstation_model, NULL);
503 xbt_cfg_setdefault_string(_sg_cfg_set, "workstation/model", "default");
505 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
506 "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)",
507 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__tcp_gamma, NULL);
508 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
510 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
511 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
512 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
513 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
515 /* The parameters of network models */
517 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
518 "Minimum gap between two overlapping sends",
519 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__sender_gap, NULL);
520 /* default for "network/sender_gap" is set in network.c */
522 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
523 "Correction factor to apply to the provided latency (default value set by network model)",
524 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__latency_factor, NULL);
525 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
527 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
528 "Correction factor to apply to the provided bandwidth (default value set by network model)",
529 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__bandwidth_factor, NULL);
530 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 1.0);
532 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
533 "Correction factor to apply to the weight of competing streams (default value set by network model)",
534 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__weight_S, NULL);
535 /* default for "network/weight_S" is set in network.c */
538 xbt_cfg_register(&_sg_cfg_set, "path",
539 "Lookup path for inclusions in platform and deployment XML files",
540 xbt_cfgelm_string, 0, 0, _sg_cfg_cb__surf_path, NULL);
542 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
543 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
544 xbt_cfgelm_boolean, 0, 1, NULL, NULL);
545 xbt_cfg_setdefault_boolean(_sg_cfg_set, "cpu/maxmin_selective_update", "no");
547 xbt_cfg_register(&_sg_cfg_set, "network/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, "network/maxmin_selective_update", "no");
553 /* do model-checking */
554 xbt_cfg_register(&_sg_cfg_set, "model-check",
555 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
556 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb_model_check, NULL);
557 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", "no");
559 /* do stateful model-checking */
560 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
561 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
562 "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.",
563 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_checkpoint, NULL);
564 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
566 /* do liveness model-checking */
567 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
568 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
569 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_property, NULL);
570 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
572 /* Specify the kind of model-checking reduction */
573 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
574 "Specify the kind of exploration reduction (either none or DPOR)",
575 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_reduce, NULL);
576 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
578 /* Enable/disable timeout for wait requests with model-checking */
579 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
580 "Enable/Disable timeout for wait requests",
581 xbt_cfgelm_boolean, 0, 1, _mc_cfg_cb_timeout, NULL);
582 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", "no");
584 /* Set max depth exploration */
585 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
586 "Specify the max depth of exploration (default : 1000)",
587 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_max_depth, NULL);
588 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
590 /* Set number of visited state stored for state comparison reduction*/
591 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
592 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
593 xbt_cfgelm_int, 0, 1, _mc_cfg_cb_visited, NULL);
594 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
596 /* Set file name for dot output of graph state */
597 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
598 "Specify the name of dot file corresponding to graph state",
599 xbt_cfgelm_string, 0, 1, _mc_cfg_cb_dot_output, NULL);
600 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
603 /* do verbose-exit */
604 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
605 "Activate the \"do nothing\" mode in Ctrl-C",
606 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb_verbose_exit, NULL);
607 xbt_cfg_setdefault_boolean(_sg_cfg_set, "verbose-exit", "yes");
609 /* context factory */
611 "Context factory to use in SIMIX. Possible values: thread");
612 const char *dflt_ctx_fact = "thread";
613 #ifdef CONTEXT_UCONTEXT
614 strcat(description, ", ucontext");
615 dflt_ctx_fact = "ucontext";
618 strcat(description, ", raw");
619 dflt_ctx_fact = "raw";
621 strcat(description, ".");
622 xbt_cfg_register(&_sg_cfg_set, "contexts/factory", description,
623 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_context_factory, NULL);
624 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/factory", dflt_ctx_fact);
626 /* stack size of contexts in Ko */
627 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
628 "Stack size of contexts in Kib",
629 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_context_stack_size, NULL);
630 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/stack_size", 128);
632 /* number of parallel threads for user processes */
633 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
634 "Number of parallel threads used to execute user contexts",
635 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_nthreads, NULL);
636 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/nthreads", 1);
638 /* minimal number of user contexts to be run in parallel */
639 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
640 "Minimal number of user contexts to be run in parallel (raw contexts only)",
641 xbt_cfgelm_int, 1, 1, _sg_cfg_cb_contexts_parallel_threshold, NULL);
642 xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/parallel_threshold", 2);
644 /* synchronization mode for parallel user contexts */
645 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
646 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
647 xbt_cfgelm_string, 1, 1, _sg_cfg_cb_contexts_parallel_mode, NULL);
649 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "futex");
650 #else //No futex on mac and posix is unimplememted yet
651 xbt_cfg_setdefault_string(_sg_cfg_set, "contexts/synchro", "busy_wait");
654 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
655 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
656 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb__surf_network_coordinates, NULL);
657 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", "no");
659 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
660 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
661 xbt_cfgelm_boolean, 0, 1, _sg_cfg_cb__surf_network_crosstraffic, NULL);
662 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "no");
665 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
666 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
667 xbt_cfgelm_double, 1, 1, _sg_cfg_cb__gtnets_jitter, NULL);
668 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
670 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
671 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
672 xbt_cfgelm_int, 0, 1, _sg_cfg_cb__gtnets_jitter_seed, NULL);
673 xbt_cfg_setdefault_int(_sg_cfg_set, "gtnets/jitter_seed", 10);
676 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
677 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
678 xbt_cfgelm_string, 1, 1, NULL, NULL);
679 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
683 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
684 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
685 xbt_cfgelm_double, 1, 1, NULL, NULL);
686 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/running_power", 20000.0);
688 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
689 "Boolean indicating whether we should display the timing after simulation.",
690 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
691 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", "no");
693 xbt_cfg_register(&_sg_cfg_set, "smpi/use_shared_malloc",
694 "Boolean indicating whether we should use shared memory when using SMPI_SHARED_MALLOC. Allows user to disable it for debug purposes.",
695 xbt_cfgelm_boolean, 1, 1, NULL, NULL);
696 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", "yes");
698 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
699 "Minimal computation time (in seconds) not discarded.",
700 xbt_cfgelm_double, 1, 1, NULL, NULL);
701 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/cpu_threshold", 1e-6);
703 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
704 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
705 xbt_cfgelm_int, 1, 1, NULL, NULL);
706 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/async_small_thres", 0);
708 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
709 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
710 xbt_cfgelm_int, 1, 1, NULL, NULL);
711 xbt_cfg_setdefault_int(_sg_cfg_set, "smpi/send_is_detached_thres", 65536);
713 //For smpi/bw_factor and smpi/lat_factor
714 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
715 //test is if( size >= thresholdN ) return valueN;
716 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
717 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
718 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
719 "Bandwidth factors for smpi.",
720 xbt_cfgelm_string, 1, 1, NULL, NULL);
721 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");
723 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
724 "Latency factors for smpi.",
725 xbt_cfgelm_string, 1, 1, NULL, NULL);
726 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");
728 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
729 "Small messages timings (MPI_Send minimum time for small messages)",
730 xbt_cfgelm_string, 1, 1, NULL, NULL);
731 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
733 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
734 "Small messages timings (MPI_Isend minimum time for small messages)",
735 xbt_cfgelm_string, 1, 1, NULL, NULL);
736 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
738 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
739 "Small messages timings (MPI_Recv minimum time for small messages)",
740 xbt_cfgelm_string, 1, 1, NULL, NULL);
741 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
742 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
743 "Minimum time to inject inside a call to MPI_Iprobe",
744 xbt_cfgelm_double, 1, 1, NULL, NULL);
745 xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/iprobe", 1e-4);
746 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
747 "Which collective selector to use",
748 xbt_cfgelm_string, 1, 1, NULL, NULL);
749 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/coll_selector", "default");
751 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
752 "Which collective to use for gather",
753 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_gather, NULL);
755 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
756 "Which collective to use for allgather",
757 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allgather, NULL);
759 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
760 "Which collective to use for barrier",
761 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_barrier, NULL);
763 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
764 "Which collective to use for reduce_scatter",
765 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_reduce_scatter, NULL);
767 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
768 "Which collective to use for scatter",
769 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_scatter, NULL);
771 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
772 "Which collective to use for allgatherv",
773 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allgatherv, NULL);
775 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
776 "Which collective to use for allreduce",
777 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_allreduce, NULL);
779 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
780 "Which collective to use for alltoall",
781 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_alltoall, NULL);
783 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
784 "Which collective to use for alltoallv",
785 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_alltoallv, NULL);
787 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
788 "Which collective to use for bcast",
789 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_bcast, NULL);
791 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
792 "Which collective to use for reduce",
793 xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__coll_reduce, NULL);
796 xbt_cfg_register(&_sg_cfg_set, "clean_atexit",
797 "\"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.",
798 xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_clean_atexit, NULL);
799 xbt_cfg_setdefault_boolean(_sg_cfg_set, "clean_atexit", "yes");
802 /* retrieves the current directory of the current process */
803 const char *initial_path = __surf_get_initial_path();
804 xbt_assert((initial_path),
805 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
807 surf_path = xbt_dynar_new(sizeof(char *), NULL);
808 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
811 _sg_cfg_init_status = 1;
813 sg_config_cmd_line(argc, argv);
815 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
818 XBT_WARN("Call to sg_config_init() after initialization ignored");
821 xbt_free(description);
824 void sg_config_finalize(void)
826 if (!_sg_cfg_init_status)
827 return; /* Not initialized yet. Nothing to do */
829 xbt_cfg_free(&_sg_cfg_set);
830 _sg_cfg_init_status = 0;
833 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
834 void surf_config_models_setup()
836 const char *workstation_model_name;
837 int workstation_id = -1;
838 char *network_model_name = NULL;
839 char *cpu_model_name = NULL;
841 char *storage_model_name = NULL;
843 workstation_model_name =
844 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
845 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
846 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
847 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
849 /* Check whether we use a net/cpu model differing from the default ones, in which case
850 * we should switch to the "compound" workstation model to correctly dispatch stuff to
851 * the right net/cpu models.
854 if ((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
855 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
856 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model")) {
857 XBT_INFO("Switching workstation model to compound since you changed the network and/or cpu model(s)");
858 workstation_model_name = "compound";
859 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", workstation_model_name);
862 XBT_DEBUG("Workstation model: %s", workstation_model_name);
864 find_model_description(surf_workstation_model_description,
865 workstation_model_name);
866 if (!strcmp(workstation_model_name, "compound")) {
870 xbt_assert(cpu_model_name,
871 "Set a cpu model to use with the 'compound' workstation model");
873 xbt_assert(network_model_name,
874 "Set a network model to use with the 'compound' workstation model");
877 find_model_description(surf_network_model_description,
880 find_model_description(surf_cpu_model_description, cpu_model_name);
882 surf_cpu_model_description[cpu_id].model_init_preparse();
883 surf_network_model_description[network_id].model_init_preparse();
886 XBT_DEBUG("Call workstation_model_init");
887 surf_workstation_model_description[workstation_id].model_init_preparse();
889 XBT_DEBUG("Call storage_model_init");
890 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
891 surf_storage_model_description[storage_id].model_init_preparse();
893 /* ********************************************************************* */
894 /* TUTORIAL: New model */
895 int new_model_id = -1;
896 char *new_model_name = NULL;
897 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
898 XBT_DEBUG("Call new model_init");
899 new_model_id = find_model_description(surf_new_model_description, new_model_name);
900 surf_new_model_description[new_model_id].model_init_preparse();
901 /* ********************************************************************* */
904 int sg_cfg_get_int(const char* name)
906 return xbt_cfg_get_int(_sg_cfg_set,name);
909 double sg_cfg_get_double(const char* name)
911 return xbt_cfg_get_double(_sg_cfg_set,name);
914 char* sg_cfg_get_string(const char* name)
916 return xbt_cfg_get_string(_sg_cfg_set,name);
919 int sg_cfg_get_boolean(const char* name)
921 return xbt_cfg_get_boolean(_sg_cfg_set,name);
924 void sg_cfg_get_peer(const char *name, char **peer, int *port)
926 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
929 xbt_dynar_t sg_cfg_get_dynar(const char* name)
931 return xbt_cfg_get_dynar(_sg_cfg_set,name);