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);
230 /* callback of the mpi collectives */
231 static void _sg_cfg_cb__coll(const char *category,
232 s_mpi_coll_description_t * table,
233 const char *name, int pos)
237 xbt_assert(_sg_init_status == 1,
238 "Cannot change the model after the initialization");
240 val = xbt_cfg_get_string(_sg_cfg_set, name);
242 if (!strcmp(val, "help")) {
243 coll_help(category, table);
247 /* New Module missing */
248 find_coll_description(table, val);
250 static void _sg_cfg_cb__coll_gather(const char *name, int pos){
251 _sg_cfg_cb__coll("gather", mpi_coll_gather_description, name, pos);
253 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
254 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
256 static void _sg_cfg_cb__coll_allgatherv(const char *name, int pos){
257 _sg_cfg_cb__coll("allgatherv", mpi_coll_allgatherv_description, name, pos);
259 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
261 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
263 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
265 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
267 static void _sg_cfg_cb__coll_alltoallv(const char *name, int pos)
269 _sg_cfg_cb__coll("alltoallv", mpi_coll_alltoallv_description, name, pos);
271 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
273 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
275 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
277 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
279 static void _sg_cfg_cb__coll_reduce_scatter(const char *name, int pos){
280 _sg_cfg_cb__coll("reduce_scatter", mpi_coll_reduce_scatter_description, name, pos);
284 /* callback of the inclusion path */
285 static void _sg_cfg_cb__surf_path(const char *name, int pos)
287 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
288 xbt_dynar_push(surf_path, &path);
291 /* callback to decide if we want to use the model-checking */
292 #include "xbt_modinter.h"
294 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
297 static void _sg_cfg_cb_model_check(const char *name, int pos)
300 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
302 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
303 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");
308 extern int _sg_do_verbose_exit;
310 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
312 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
316 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
317 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
320 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
322 smx_context_stack_size_was_set = 1;
323 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
326 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
328 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
331 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
333 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
336 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
338 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
339 if (!strcmp(mode_name, "posix")) {
340 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
342 else if (!strcmp(mode_name, "futex")) {
343 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
345 else if (!strcmp(mode_name, "busy_wait")) {
346 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
349 xbt_die("Command line setting of the parallel synchronization mode should "
350 "be one of \"posix\", \"futex\" or \"busy_wait\"");
354 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
357 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
359 if (!COORD_HOST_LEVEL) {
360 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
361 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
364 if (COORD_HOST_LEVEL)
365 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
368 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
371 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
375 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
377 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
380 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
382 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
386 /* create the config set, register what should be and parse the command line*/
387 void sg_config_init(int *argc, char **argv)
389 char *description = xbt_malloc(1024), *p = description;
391 double double_default_value;
392 int default_value_int;
395 /* Create the configuration support */
396 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
398 "The model to use for the CPU. Possible values: ");
400 while (*(++p) != '\0');
401 for (i = 0; surf_cpu_model_description[i].name; i++)
402 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
403 surf_cpu_model_description[i].name);
405 ".\n (use 'help' as a value to see the long description of each model)");
406 default_value = xbt_strdup("Cas01");
407 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
408 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
411 "The optimization modes to use for the CPU. Possible values: ");
413 while (*(++p) != '\0');
414 for (i = 0; surf_optimization_mode_description[i].name; i++)
415 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
416 surf_optimization_mode_description[i].name);
418 ".\n (use 'help' as a value to see the long description of each optimization mode)");
419 default_value = xbt_strdup("Lazy");
420 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
421 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
424 "The model to use for the storage. Possible values: ");
426 while (*(++p) != '\0');
427 for (i = 0; surf_storage_model_description[i].name; i++)
428 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
429 surf_storage_model_description[i].name);
431 ".\n (use 'help' as a value to see the long description of each model)");
432 default_value = xbt_strdup("default");
433 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
434 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
437 /* ********************************************************************* */
438 /* TUTORIAL: New model */
440 "The model to use for the New model. Possible values: ");
442 while (*(++p) != '\0');
443 for (i = 0; surf_new_model_description[i].name; i++)
444 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
445 surf_new_model_description[i].name);
447 ".\n (use 'help' as a value to see the long description of each model)");
448 default_value = xbt_strdup("default");
449 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
450 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
452 /* ********************************************************************* */
455 "The model to use for the network. Possible values: ");
457 while (*(++p) != '\0');
458 for (i = 0; surf_network_model_description[i].name; i++)
459 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
460 surf_network_model_description[i].name);
462 ".\n (use 'help' as a value to see the long description of each model)");
463 default_value = xbt_strdup("LV08");
464 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
465 &default_value, 1, 1, &_sg_cfg_cb__network_model,
469 "The optimization modes to use for the network. Possible values: ");
471 while (*(++p) != '\0');
472 for (i = 0; surf_optimization_mode_description[i].name; i++)
473 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
474 surf_optimization_mode_description[i].name);
476 ".\n (use 'help' as a value to see the long description of each optimization mode)");
477 default_value = xbt_strdup("Lazy");
478 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
479 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
482 "The model to use for the workstation. Possible values: ");
484 while (*(++p) != '\0');
485 for (i = 0; surf_workstation_model_description[i].name; i++)
486 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
487 surf_workstation_model_description[i].name);
489 ".\n (use 'help' as a value to see the long description of each model)");
490 default_value = xbt_strdup("default");
491 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
492 &default_value, 1, 1,
493 &_sg_cfg_cb__workstation_model, NULL);
495 xbt_free(description);
497 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
498 "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)",
499 xbt_cfgelm_double, NULL, 1, 1,
500 _sg_cfg_cb__tcp_gamma, NULL);
501 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
503 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
504 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
505 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
506 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
508 /* The parameters of network models */
510 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
511 "Minimum gap between two overlapping sends",
512 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
513 _sg_cfg_cb__sender_gap, NULL);
515 double_default_value = 1.0; // FIXME use setdefault everywhere here!
516 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
517 "Correction factor to apply to the provided latency (default value set by network model)",
518 xbt_cfgelm_double, &double_default_value, 1, 1,
519 _sg_cfg_cb__latency_factor, NULL);
520 double_default_value = 1.0;
521 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
522 "Correction factor to apply to the provided bandwidth (default value set by network model)",
523 xbt_cfgelm_double, &double_default_value, 1, 1,
524 _sg_cfg_cb__bandwidth_factor, NULL);
526 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
527 "Correction factor to apply to the weight of competing streams (default value set by network model)",
528 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
529 _sg_cfg_cb__weight_S, NULL);
532 xbt_cfg_register(&_sg_cfg_set, "path",
533 "Lookup path for inclusions in platform and deployment XML files",
534 xbt_cfgelm_string, NULL, 0, 0,
535 _sg_cfg_cb__surf_path, NULL);
537 default_value = xbt_strdup("off");
538 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
539 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
540 xbt_cfgelm_boolean, &default_value, 0, 1,
542 default_value = xbt_strdup("off");
543 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
544 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
545 xbt_cfgelm_boolean, &default_value, 0, 1,
549 /* do model-checking */
550 default_value = xbt_strdup("off");
551 xbt_cfg_register(&_sg_cfg_set, "model-check",
552 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
553 xbt_cfgelm_boolean, NULL, 0, 1,
554 _sg_cfg_cb_model_check, NULL);
555 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", default_value);
557 /* do stateful model-checking */
558 default_value = xbt_strdup("off");
559 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
560 "Specify the amount of steps between checkpoints during stateful model-checking (default: off => stateless verification). "
561 "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.",
562 xbt_cfgelm_boolean, NULL, 0, 1,
563 _mc_cfg_cb_checkpoint, NULL);
564 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/checkpoint", default_value);
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, NULL, 0, 1,
570 _mc_cfg_cb_property, NULL);
571 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
573 /* Specify the kind of model-checking reduction */
574 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
575 "Specify the kind of exploration reduction (either none or DPOR)",
576 xbt_cfgelm_string, NULL, 0, 1,
577 _mc_cfg_cb_reduce, NULL);
578 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
580 /* Enable/disable timeout for wait requests with model-checking */
581 default_value = xbt_strdup("off");
582 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
583 "Enable/Disable timeout for wait requests",
584 xbt_cfgelm_boolean, NULL, 0, 1,
585 _mc_cfg_cb_timeout, NULL);
586 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", default_value);
588 /* Set max depth exploration */
589 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
590 "Specify the max depth of exploration (default : 1000)",
591 xbt_cfgelm_int, NULL, 0, 1,
592 _mc_cfg_cb_max_depth, NULL);
593 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
595 /* Set number of visited state stored for state comparison reduction*/
596 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
597 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
598 xbt_cfgelm_int, NULL, 0, 1,
599 _mc_cfg_cb_visited, NULL);
600 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
602 /* Set file name for dot output of graph state */
603 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
604 "Specify the name of dot file corresponding to graph state",
605 xbt_cfgelm_string, NULL, 0, 1,
606 _mc_cfg_cb_dot_output, NULL);
607 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
610 /* do verbose-exit */
611 default_value = xbt_strdup("on");
612 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
613 "Activate the \"do nothing\" mode in Ctrl-C",
614 xbt_cfgelm_boolean, &default_value, 0, 1,
615 _sg_cfg_cb_verbose_exit, NULL);
618 /* context factory */
619 default_value = xbt_strdup("ucontext");
620 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
621 "Context factory to use in SIMIX (ucontext, thread or raw)",
622 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
624 /* stack size of contexts in Ko */
625 default_value_int = 128;
626 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
627 "Stack size of contexts in Kib (ucontext or raw only)",
628 xbt_cfgelm_int, &default_value_int, 1, 1,
629 _sg_cfg_cb_context_stack_size, NULL);
631 /* number of parallel threads for user processes */
632 default_value_int = 1;
633 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
634 "Number of parallel threads used to execute user contexts",
635 xbt_cfgelm_int, &default_value_int, 1, 1,
636 _sg_cfg_cb_contexts_nthreads, NULL);
638 /* minimal number of user contexts to be run in parallel */
639 default_value_int = 2;
640 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
641 "Minimal number of user contexts to be run in parallel (raw contexts only)",
642 xbt_cfgelm_int, &default_value_int, 1, 1,
643 _sg_cfg_cb_contexts_parallel_threshold, NULL);
645 /* synchronization mode for parallel user contexts */
647 default_value = xbt_strdup("futex");
648 #else //No futex on mac and posix is unimplememted yet
649 default_value = xbt_strdup("busy_wait");
651 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
652 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
653 xbt_cfgelm_string, &default_value, 1, 1,
654 _sg_cfg_cb_contexts_parallel_mode, NULL);
656 default_value = xbt_strdup("no");
657 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
658 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
659 xbt_cfgelm_boolean, &default_value, 1, 1,
660 _sg_cfg_cb__surf_network_coordinates, NULL);
661 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", default_value);
663 default_value = xbt_strdup("no");
664 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
665 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
666 xbt_cfgelm_boolean, &default_value, 0, 1,
667 _sg_cfg_cb__surf_network_crosstraffic, NULL);
668 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", default_value);
671 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
672 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
673 xbt_cfgelm_double, NULL, 1, 1,
674 _sg_cfg_cb__gtnets_jitter, NULL);
675 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
677 default_value_int = 10;
678 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
679 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
680 xbt_cfgelm_int, &default_value_int, 0, 1,
681 _sg_cfg_cb__gtnets_jitter_seed, NULL);
684 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
685 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
686 xbt_cfgelm_string, NULL, 1, 1,
688 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
692 double default_reference_speed = 20000.0;
693 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
694 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
695 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
698 default_value = xbt_strdup("no");
699 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
700 "Boolean indicating whether we should display the timing after simulation.",
701 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
703 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", default_value);
705 double default_threshold = 1e-6;
706 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
707 "Minimal computation time (in seconds) not discarded.",
708 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
711 int default_small_messages_threshold = 0;
712 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
713 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
714 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
717 int default_send_is_detached_threshold = 65536;
718 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
719 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
720 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
723 //For smpi/bw_factor and smpi/lat_factor
724 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
725 //test is if( size >= thresholdN ) return valueN;
726 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
727 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
728 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
729 "Bandwidth factors for smpi.",
730 xbt_cfgelm_string, NULL, 1, 1, NULL,
732 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");
734 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
735 "Latency factors for smpi.",
736 xbt_cfgelm_string, NULL, 1, 1, NULL,
738 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");
740 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
741 "Small messages timings (MPI_Send minimum time for small messages)",
742 xbt_cfgelm_string, NULL, 1, 1, NULL,
744 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
746 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
747 "Small messages timings (MPI_Isend minimum time for small messages)",
748 xbt_cfgelm_string, NULL, 1, 1, NULL,
750 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
752 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
753 "Small messages timings (MPI_Recv minimum time for small messages)",
754 xbt_cfgelm_string, NULL, 1, 1, NULL,
756 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
757 double default_iprobe_time = 1e-4;
758 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
759 "Minimum time to inject inside a call to MPI_Iprobe",
760 xbt_cfgelm_double, &default_iprobe_time, 1, 1, NULL,
762 default_value = xbt_strdup("default");
763 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
764 "Which collective selector to use",
765 xbt_cfgelm_string, &default_value, 1, 1, NULL,
768 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
769 "Which collective to use for gather",
770 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_gather,
773 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
774 "Which collective to use for allgather",
775 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgather,
778 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
779 "Which collective to use for reduce_scatter",
780 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce_scatter,
783 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
784 "Which collective to use for allgatherv",
785 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgatherv,
788 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
789 "Which collective to use for allreduce",
790 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allreduce,
793 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
794 "Which collective to use for alltoall",
795 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoall,
798 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
799 "Which collective to use for alltoallv",
800 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoallv,
803 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
804 "Which collective to use for bcast",
805 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_bcast,
808 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
809 "Which collective to use for reduce",
810 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce,
815 /* retrieves the current directory of the current process */
816 const char *initial_path = __surf_get_initial_path();
817 xbt_assert((initial_path),
818 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
820 surf_path = xbt_dynar_new(sizeof(char *), NULL);
821 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
826 sg_config_cmd_line(argc, argv);
828 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
831 XBT_WARN("Call to sg_config_init() after initialization ignored");
835 void sg_config_finalize(void)
837 if (!_sg_init_status)
838 return; /* Not initialized yet. Nothing to do */
840 xbt_cfg_free(&_sg_cfg_set);
844 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
845 void surf_config_models_setup()
847 char *workstation_model_name;
848 int workstation_id = -1;
849 char *network_model_name = NULL;
850 char *cpu_model_name = NULL;
852 char *storage_model_name = NULL;
854 workstation_model_name =
855 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
856 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
857 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
858 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
860 /* Check whether we use a net/cpu model differing from the default ones, in which case
861 * we should switch to the "compound" workstation model to correctly dispatch stuff to
862 * the right net/cpu models.
865 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
866 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
867 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
869 const char *val = "compound";
871 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
872 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
873 workstation_model_name = (char *) "compound";
876 XBT_DEBUG("Workstation model: %s", workstation_model_name);
878 find_model_description(surf_workstation_model_description,
879 workstation_model_name);
880 if (!strcmp(workstation_model_name, "compound")) {
884 xbt_assert(cpu_model_name,
885 "Set a cpu model to use with the 'compound' workstation model");
887 xbt_assert(network_model_name,
888 "Set a network model to use with the 'compound' workstation model");
891 find_model_description(surf_network_model_description,
894 find_model_description(surf_cpu_model_description, cpu_model_name);
896 surf_cpu_model_description[cpu_id].model_init_preparse();
897 surf_network_model_description[network_id].model_init_preparse();
900 XBT_DEBUG("Call workstation_model_init");
901 surf_workstation_model_description[workstation_id].model_init_preparse();
903 XBT_DEBUG("Call storage_model_init");
904 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
905 surf_storage_model_description[storage_id].model_init_preparse();
907 /* ********************************************************************* */
908 /* TUTORIAL: New model */
909 int new_model_id = -1;
910 char *new_model_name = NULL;
911 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
912 XBT_DEBUG("Call new model_init");
913 new_model_id = find_model_description(surf_new_model_description, new_model_name);
914 surf_new_model_description[new_model_id].model_init_preparse();
915 /* ********************************************************************* */
918 int sg_cfg_get_int(const char* name)
920 return xbt_cfg_get_int(_sg_cfg_set,name);
922 double sg_cfg_get_double(const char* name)
924 return xbt_cfg_get_double(_sg_cfg_set,name);
926 char* sg_cfg_get_string(const char* name)
928 return xbt_cfg_get_string(_sg_cfg_set,name);
930 int sg_cfg_get_boolean(const char* name)
932 return xbt_cfg_get_boolean(_sg_cfg_set,name);
934 void sg_cfg_get_peer(const char *name, char **peer, int *port)
936 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
938 xbt_dynar_t sg_cfg_get_dynar(const char* name)
940 return xbt_cfg_get_dynar(_sg_cfg_set,name);