1 /* Copyright (c) 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /* sg_config: configuration infrastructure for the simulation world */
10 #include "xbt/config.h"
12 #include "xbt/mallocator.h"
15 #include "xbt/sysdep.h"
16 #include "surf/surf.h"
17 #include "surf/maxmin.h"
18 #include "instr/instr_interface.h"
19 #include "simgrid/simix.h"
20 #include "simgrid/sg_config.h"
21 #include "smpi/smpi_interface.h"
23 #include "instr/instr.h"
25 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
26 "About the configuration of simgrid");
28 xbt_cfg_t _sg_cfg_set = NULL;
30 int _sg_init_status = 0; /* 0: beginning of time (config cannot be changed yet);
31 1: initialized: cfg_set created (config can now be changed);
32 2: configured: command line parsed and config part of platform file was integrated also, platform construction ongoing or done.
33 (Config cannot be changed anymore!) */
35 /* Parse the command line, looking for options */
36 static void sg_config_cmd_line(int *argc, char **argv)
42 for (j = i = 1; i < *argc; i++) {
43 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
44 opt = strchr(argv[i], '=');
47 xbt_cfg_set_parse(_sg_cfg_set, opt);
48 XBT_DEBUG("Did apply '%s' as config setting", opt);
49 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
51 ("Description of the configuration accepted by this simulator:\n");
52 xbt_cfg_help(_sg_cfg_set);
55 "Each of these configurations can be used by adding\n"
56 " --cfg=<option name>:<option value>\n"
57 "to the command line.\n"
58 "You can also use --help-models to see the details of all models known by this simulator.\n"
61 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
64 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
68 } else if (!strcmp(argv[i], "--help-models")) {
71 model_help("workstation", surf_workstation_model_description);
73 model_help("CPU", surf_cpu_model_description);
75 model_help("network", surf_network_model_description);
76 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
77 for (k = 0; surf_optimization_mode_description[k].name; k++)
79 surf_optimization_mode_description[k].name,
80 surf_optimization_mode_description[k].description);
81 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
84 } else if (!strcmp(argv[i], "--help-tracing")) {
97 _sg_init_status=1; // get everything cleanly cleaned on exit
102 /* callback of the workstation/model variable */
103 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
107 xbt_assert(_sg_init_status == 1,
108 "Cannot change the model after the initialization");
110 val = xbt_cfg_get_string(_sg_cfg_set, name);
112 if (!strcmp(val, "help")) {
113 model_help("workstation", surf_workstation_model_description);
117 /* Make sure that the model exists */
118 find_model_description(surf_workstation_model_description, val);
121 /* callback of the cpu/model variable */
122 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
126 xbt_assert(_sg_init_status == 1,
127 "Cannot change the model after the initialization");
129 val = xbt_cfg_get_string(_sg_cfg_set, name);
131 if (!strcmp(val, "help")) {
132 model_help("CPU", surf_cpu_model_description);
136 /* New Module missing */
137 find_model_description(surf_cpu_model_description, val);
140 /* callback of the cpu/model variable */
141 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
145 xbt_assert(_sg_init_status == 1,
146 "Cannot change the model after the initialization");
148 val = xbt_cfg_get_string(_sg_cfg_set, name);
150 if (!strcmp(val, "help")) {
151 model_help("optimization", surf_optimization_mode_description);
155 /* New Module missing */
156 find_model_description(surf_optimization_mode_description, val);
159 /* callback of the cpu/model variable */
160 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
164 xbt_assert(_sg_init_status == 1,
165 "Cannot change the model after the initialization");
167 val = xbt_cfg_get_string(_sg_cfg_set, name);
169 if (!strcmp(val, "help")) {
170 model_help("storage", surf_storage_model_description);
174 /* New Module missing */
175 find_model_description(surf_storage_model_description, val);
178 /* callback of the workstation_model variable */
179 static void _sg_cfg_cb__network_model(const char *name, int pos)
183 xbt_assert(_sg_init_status == 1,
184 "Cannot change the model after the initialization");
186 val = xbt_cfg_get_string(_sg_cfg_set, name);
188 if (!strcmp(val, "help")) {
189 model_help("network", surf_network_model_description);
193 /* New Module missing */
194 find_model_description(surf_network_model_description, val);
198 /* callbacks of the network models values */
199 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
201 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
204 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
206 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
209 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
211 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
214 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
216 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
219 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
221 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
224 static void _sg_cfg_cb__weight_S(const char *name, int pos)
226 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
229 /* callback of the mpi collectives */
230 static void _sg_cfg_cb__coll(const char *category,
231 s_mpi_coll_description_t * table,
232 const char *name, int pos)
236 xbt_assert(_sg_init_status == 1,
237 "Cannot change the model after the initialization");
239 val = xbt_cfg_get_string(_sg_cfg_set, name);
241 if (!strcmp(val, "help")) {
242 coll_help(category, table);
246 /* New Module missing */
247 find_coll_description(table, val);
249 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
250 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
252 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
254 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
256 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
258 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
260 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
262 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
264 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
266 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
270 /* callback of the inclusion path */
271 static void _sg_cfg_cb__surf_path(const char *name, int pos)
273 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
274 xbt_dynar_push(surf_path, &path);
277 /* callback to decide if we want to use the model-checking */
278 #include "xbt_modinter.h"
280 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
283 static void _sg_cfg_cb_model_check(const char *name, int pos)
286 _sg_do_model_check = xbt_cfg_get_int(_sg_cfg_set, name);
288 if (xbt_cfg_get_int(_sg_cfg_set, name)) {
289 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");
294 extern int _sg_do_verbose_exit;
296 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
298 _sg_do_verbose_exit = xbt_cfg_get_int(_sg_cfg_set, name);
302 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
303 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
306 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
308 smx_context_stack_size_was_set = 1;
309 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
312 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
314 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
317 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
319 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
322 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
324 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
325 if (!strcmp(mode_name, "posix")) {
326 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
328 else if (!strcmp(mode_name, "futex")) {
329 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
331 else if (!strcmp(mode_name, "busy_wait")) {
332 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
335 xbt_die("Command line setting of the parallel synchronization mode should "
336 "be one of \"posix\", \"futex\" or \"busy_wait\"");
340 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
343 char *val = xbt_cfg_get_string(_sg_cfg_set, name);
344 if (!strcmp(val, "yes")) {
345 if (!COORD_HOST_LEVEL) {
346 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
347 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
349 } else if (!strcmp(val, "no")) {
350 if (COORD_HOST_LEVEL)
351 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
353 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
357 static void _sg_cfg_cb_surf_nthreads(const char *name, int pos)
359 surf_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
362 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
365 sg_network_crosstraffic = xbt_cfg_get_int(_sg_cfg_set, name);
369 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
371 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
374 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
376 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
380 /* create the config set, register what should be and parse the command line*/
381 void sg_config_init(int *argc, char **argv)
383 char *description = xbt_malloc(1024), *p = description;
385 double double_default_value;
386 int default_value_int;
389 /* Create the configuration support */
390 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
392 "The model to use for the CPU. Possible values: ");
394 while (*(++p) != '\0');
395 for (i = 0; surf_cpu_model_description[i].name; i++)
396 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
397 surf_cpu_model_description[i].name);
399 ".\n (use 'help' as a value to see the long description of each model)");
400 default_value = xbt_strdup("Cas01");
401 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
402 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
405 "The optimization modes to use for the CPU. Possible values: ");
407 while (*(++p) != '\0');
408 for (i = 0; surf_optimization_mode_description[i].name; i++)
409 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
410 surf_optimization_mode_description[i].name);
412 ".\n (use 'help' as a value to see the long description of each optimization mode)");
413 default_value = xbt_strdup("Lazy");
414 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
415 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
418 "The model to use for the storage. Possible values: ");
420 while (*(++p) != '\0');
421 for (i = 0; surf_storage_model_description[i].name; i++)
422 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
423 surf_storage_model_description[i].name);
425 ".\n (use 'help' as a value to see the long description of each model)");
426 default_value = xbt_strdup("default");
427 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
428 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
431 /* ********************************************************************* */
432 /* TUTORIAL: New model */
434 "The model to use for the New model. Possible values: ");
436 while (*(++p) != '\0');
437 for (i = 0; surf_new_model_description[i].name; i++)
438 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
439 surf_new_model_description[i].name);
441 ".\n (use 'help' as a value to see the long description of each model)");
442 default_value = xbt_strdup("default");
443 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
444 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
446 /* ********************************************************************* */
449 "The model to use for the network. Possible values: ");
451 while (*(++p) != '\0');
452 for (i = 0; surf_network_model_description[i].name; i++)
453 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
454 surf_network_model_description[i].name);
456 ".\n (use 'help' as a value to see the long description of each model)");
457 default_value = xbt_strdup("LV08");
458 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
459 &default_value, 1, 1, &_sg_cfg_cb__network_model,
463 "The optimization modes to use for the network. Possible values: ");
465 while (*(++p) != '\0');
466 for (i = 0; surf_optimization_mode_description[i].name; i++)
467 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
468 surf_optimization_mode_description[i].name);
470 ".\n (use 'help' as a value to see the long description of each optimization mode)");
471 default_value = xbt_strdup("Lazy");
472 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
473 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
476 "The model to use for the workstation. Possible values: ");
478 while (*(++p) != '\0');
479 for (i = 0; surf_workstation_model_description[i].name; i++)
480 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
481 surf_workstation_model_description[i].name);
483 ".\n (use 'help' as a value to see the long description of each model)");
484 default_value = xbt_strdup("default");
485 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
486 &default_value, 1, 1,
487 &_sg_cfg_cb__workstation_model, NULL);
489 xbt_free(description);
491 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
492 "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)",
493 xbt_cfgelm_double, NULL, 1, 1,
494 _sg_cfg_cb__tcp_gamma, NULL);
495 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
497 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
498 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
499 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
500 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
502 /* The parameters of network models */
504 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
505 "Minimum gap between two overlapping sends",
506 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
507 _sg_cfg_cb__sender_gap, NULL);
509 double_default_value = 1.0; // FIXME use setdefault everywhere here!
510 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
511 "Correction factor to apply to the provided latency (default value set by network model)",
512 xbt_cfgelm_double, &double_default_value, 1, 1,
513 _sg_cfg_cb__latency_factor, NULL);
514 double_default_value = 1.0;
515 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
516 "Correction factor to apply to the provided bandwidth (default value set by network model)",
517 xbt_cfgelm_double, &double_default_value, 1, 1,
518 _sg_cfg_cb__bandwidth_factor, NULL);
520 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
521 "Correction factor to apply to the weight of competing streams (default value set by network model)",
522 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
523 _sg_cfg_cb__weight_S, NULL);
526 xbt_cfg_register(&_sg_cfg_set, "path",
527 "Lookup path for inclusions in platform and deployment XML files",
528 xbt_cfgelm_string, NULL, 0, 0,
529 _sg_cfg_cb__surf_path, NULL);
531 default_value_int = 0;
532 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
533 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
534 xbt_cfgelm_int, &default_value_int, 0, 1,
536 default_value_int = 0;
537 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
538 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
539 xbt_cfgelm_int, &default_value_int, 0, 1,
543 /* do model-checking */
544 xbt_cfg_register(&_sg_cfg_set, "model-check",
545 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
546 xbt_cfgelm_int, NULL, 0, 1,
547 _sg_cfg_cb_model_check, NULL);
548 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check", 0);
550 /* do stateful model-checking */
551 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
552 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
553 "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.",
554 xbt_cfgelm_int, NULL, 0, 1,
555 _mc_cfg_cb_checkpoint, NULL);
556 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
558 /* do liveness model-checking */
559 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
560 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
561 xbt_cfgelm_string, NULL, 0, 1,
562 _mc_cfg_cb_property, NULL);
563 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
565 /* Specify the kind of model-checking reduction */
566 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
567 "Specify the kind of exploration reduction (either none or DPOR)",
568 xbt_cfgelm_string, NULL, 0, 1,
569 _mc_cfg_cb_reduce, NULL);
570 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
572 /* Enable/disable timeout for wait requests with model-checking */
573 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
574 "Enable/Disable timeout for wait requests",
575 xbt_cfgelm_int, NULL, 0, 1,
576 _mc_cfg_cb_timeout, NULL);
577 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/timeout", 0);
579 /* Set max depth exploration */
580 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
581 "Specify the max depth of exploration (default : 1000)",
582 xbt_cfgelm_int, NULL, 0, 1,
583 _mc_cfg_cb_max_depth, NULL);
584 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
586 /* Set number of visited state stored for state comparison reduction*/
587 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
588 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
589 xbt_cfgelm_int, NULL, 0, 1,
590 _mc_cfg_cb_visited, NULL);
591 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
593 /* Set file name for dot output of graph state */
594 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
595 "Specify the name of dot file corresponding to graph state",
596 xbt_cfgelm_string, NULL, 0, 1,
597 _mc_cfg_cb_dot_output, NULL);
598 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
601 /* do verbose-exit */
602 default_value_int = 1;
603 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
604 "Activate the \"do nothing\" mode in Ctrl-C",
605 xbt_cfgelm_int, &default_value_int, 0, 1,
606 _sg_cfg_cb_verbose_exit, NULL);
609 /* context factory */
610 default_value = xbt_strdup("ucontext");
611 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
612 "Context factory to use in SIMIX (ucontext, thread or raw)",
613 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
615 /* stack size of contexts in Ko */
616 default_value_int = 128;
617 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
618 "Stack size of contexts in Kib (ucontext or raw only)",
619 xbt_cfgelm_int, &default_value_int, 1, 1,
620 _sg_cfg_cb_context_stack_size, NULL);
622 /* number of parallel threads for user processes */
623 default_value_int = 1;
624 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
625 "Number of parallel threads used to execute user contexts",
626 xbt_cfgelm_int, &default_value_int, 1, 1,
627 _sg_cfg_cb_contexts_nthreads, NULL);
629 /* minimal number of user contexts to be run in parallel */
630 default_value_int = 2;
631 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
632 "Minimal number of user contexts to be run in parallel (raw contexts only)",
633 xbt_cfgelm_int, &default_value_int, 1, 1,
634 _sg_cfg_cb_contexts_parallel_threshold, NULL);
636 /* synchronization mode for parallel user contexts */
638 default_value = xbt_strdup("futex");
639 #else //No futex on mac and posix is unimplememted yet
640 default_value = xbt_strdup("busy_wait");
642 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
643 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
644 xbt_cfgelm_string, &default_value, 1, 1,
645 _sg_cfg_cb_contexts_parallel_mode, NULL);
647 /* number of parallel threads for Surf */
648 default_value_int = surf_get_nthreads();
649 xbt_cfg_register(&_sg_cfg_set, "surf/nthreads",
650 "Number of parallel threads used to update Surf models",
651 xbt_cfgelm_int, &default_value_int, 1, 1,
652 _sg_cfg_cb_surf_nthreads, NULL);
654 default_value = xbt_strdup("no");
655 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
656 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
657 xbt_cfgelm_string, &default_value, 1, 1,
658 _sg_cfg_cb__surf_network_coordinates, NULL);
659 xbt_cfg_setdefault_string(_sg_cfg_set, "network/coordinates", default_value);
661 default_value_int = 0;
662 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
663 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
664 xbt_cfgelm_int, &default_value_int, 0, 1,
665 _sg_cfg_cb__surf_network_crosstraffic, NULL);
666 xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", default_value_int);
669 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
670 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
671 xbt_cfgelm_double, NULL, 1, 1,
672 _sg_cfg_cb__gtnets_jitter, NULL);
673 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
675 default_value_int = 10;
676 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
677 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
678 xbt_cfgelm_int, &default_value_int, 0, 1,
679 _sg_cfg_cb__gtnets_jitter_seed, NULL);
682 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
683 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
684 xbt_cfgelm_string, NULL, 1, 1,
686 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
690 double default_reference_speed = 20000.0;
691 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
692 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
693 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
696 int default_display_timing = 0;
697 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
698 "Boolean indicating whether we should display the timing after simulation.",
699 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
702 double default_threshold = 1e-6;
703 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
704 "Minimal computation time (in seconds) not discarded.",
705 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
708 int default_small_messages_threshold = 0;
709 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
710 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
711 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
714 int default_send_is_detached_threshold = 65536;
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, &default_send_is_detached_threshold, 1, 1, NULL,
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, NULL, 1, 1, NULL,
729 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");
731 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
732 "Latency factors for smpi.",
733 xbt_cfgelm_string, NULL, 1, 1, NULL,
735 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");
737 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
738 "Small messages timings (MPI_Send minimum time for small messages)",
739 xbt_cfgelm_string, NULL, 1, 1, NULL,
741 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
743 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
744 "Small messages timings (MPI_Isend minimum time for small messages)",
745 xbt_cfgelm_string, NULL, 1, 1, NULL,
747 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
749 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
750 "Small messages timings (MPI_Recv minimum time for small messages)",
751 xbt_cfgelm_string, NULL, 1, 1, NULL,
753 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
755 default_value = xbt_strdup("default");
756 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
757 "Which collective to use for allgather",
758 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allgather,
761 default_value = xbt_strdup("default");
762 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
763 "Which collective to use for allreduce",
764 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allreduce,
767 default_value = xbt_strdup("ompi");
768 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
769 "Which collective to use for alltoall",
770 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_alltoall,
774 default_value = xbt_strdup("default");
775 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
776 "Which collective to use for bcast",
777 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_bcast,
781 default_value = xbt_strdup("default");
782 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
783 "Which collective to use for reduce",
784 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_reduce,
790 /* retrieves the current directory of the current process */
791 const char *initial_path = __surf_get_initial_path();
792 xbt_assert((initial_path),
793 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
795 surf_path = xbt_dynar_new(sizeof(char *), NULL);
796 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
801 sg_config_cmd_line(argc, argv);
803 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
806 XBT_WARN("Call to sg_config_init() after initialization ignored");
810 void sg_config_finalize(void)
812 if (!_sg_init_status)
813 return; /* Not initialized yet. Nothing to do */
815 xbt_cfg_free(&_sg_cfg_set);
819 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
820 void surf_config_models_setup()
822 char *workstation_model_name;
823 int workstation_id = -1;
824 char *network_model_name = NULL;
825 char *cpu_model_name = NULL;
827 char *storage_model_name = NULL;
829 workstation_model_name =
830 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
831 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
832 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
833 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
835 /* Check whether we use a net/cpu model differing from the default ones, in which case
836 * we should switch to the "compound" workstation model to correctly dispatch stuff to
837 * the right net/cpu models.
840 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
841 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
842 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
844 const char *val = "compound";
846 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
847 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
848 workstation_model_name = (char *) "compound";
851 XBT_DEBUG("Workstation model: %s", workstation_model_name);
853 find_model_description(surf_workstation_model_description,
854 workstation_model_name);
855 if (!strcmp(workstation_model_name, "compound")) {
859 xbt_assert(cpu_model_name,
860 "Set a cpu model to use with the 'compound' workstation model");
862 xbt_assert(network_model_name,
863 "Set a network model to use with the 'compound' workstation model");
866 find_model_description(surf_network_model_description,
869 find_model_description(surf_cpu_model_description, cpu_model_name);
871 surf_cpu_model_description[cpu_id].model_init_preparse();
872 surf_network_model_description[network_id].model_init_preparse();
875 XBT_DEBUG("Call workstation_model_init");
876 surf_workstation_model_description[workstation_id].model_init_preparse();
878 XBT_DEBUG("Call storage_model_init");
879 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
880 surf_storage_model_description[storage_id].model_init_preparse();
882 /* ********************************************************************* */
883 /* TUTORIAL: New model */
884 int new_model_id = -1;
885 char *new_model_name = NULL;
886 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
887 XBT_DEBUG("Call new model_init");
888 new_model_id = find_model_description(surf_new_model_description, new_model_name);
889 surf_new_model_description[new_model_id].model_init_preparse();
890 /* ********************************************************************* */
893 int sg_cfg_get_int(const char* name)
895 return xbt_cfg_get_int(_sg_cfg_set,name);
897 double sg_cfg_get_double(const char* name)
899 return xbt_cfg_get_double(_sg_cfg_set,name);
901 char* sg_cfg_get_string(const char* name)
903 return xbt_cfg_get_string(_sg_cfg_set,name);
905 void sg_cfg_get_peer(const char *name, char **peer, int *port)
907 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
909 xbt_dynar_t sg_cfg_get_dynar(const char* name)
911 return xbt_cfg_get_dynar(_sg_cfg_set,name);