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);
282 static void _sg_cfg_cb__coll_scatter(const char *name, int pos){
283 _sg_cfg_cb__coll("scatter", mpi_coll_scatter_description, name, pos);
285 static void _sg_cfg_cb__coll_barrier(const char *name, int pos){
286 _sg_cfg_cb__coll("barrier", mpi_coll_barrier_description, name, pos);
290 /* callback of the inclusion path */
291 static void _sg_cfg_cb__surf_path(const char *name, int pos)
293 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
294 xbt_dynar_push(surf_path, &path);
297 /* callback to decide if we want to use the model-checking */
298 #include "xbt_modinter.h"
300 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
303 static void _sg_cfg_cb_model_check(const char *name, int pos)
306 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
308 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
309 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");
314 extern int _sg_do_verbose_exit;
316 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
318 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
321 extern int _sg_do_clean_atexit;
323 static void _sg_cfg_cb_clean_atexit(const char *name, int pos)
325 _sg_do_clean_atexit = xbt_cfg_get_boolean(_sg_cfg_set, name);
328 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
329 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
332 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
334 smx_context_stack_size_was_set = 1;
335 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
338 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
340 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
343 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
345 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
348 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
350 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
351 if (!strcmp(mode_name, "posix")) {
352 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
354 else if (!strcmp(mode_name, "futex")) {
355 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
357 else if (!strcmp(mode_name, "busy_wait")) {
358 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
361 xbt_die("Command line setting of the parallel synchronization mode should "
362 "be one of \"posix\", \"futex\" or \"busy_wait\"");
366 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
369 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
371 if (!COORD_HOST_LEVEL) {
372 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
373 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
376 if (COORD_HOST_LEVEL)
377 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
380 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
383 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
387 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
389 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
392 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
394 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
398 /* create the config set, register what should be and parse the command line*/
399 void sg_config_init(int *argc, char **argv)
401 char *description = xbt_malloc(1024), *p = description;
403 double double_default_value;
404 int default_value_int;
407 /* Create the configuration support */
408 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
410 "The model to use for the CPU. Possible values: ");
412 while (*(++p) != '\0');
413 for (i = 0; surf_cpu_model_description[i].name; i++)
414 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
415 surf_cpu_model_description[i].name);
417 ".\n (use 'help' as a value to see the long description of each model)");
418 default_value = xbt_strdup("Cas01");
419 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
420 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
423 "The optimization modes to use for the CPU. Possible values: ");
425 while (*(++p) != '\0');
426 for (i = 0; surf_optimization_mode_description[i].name; i++)
427 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
428 surf_optimization_mode_description[i].name);
430 ".\n (use 'help' as a value to see the long description of each optimization mode)");
431 default_value = xbt_strdup("Lazy");
432 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
433 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
436 "The model to use for the storage. Possible values: ");
438 while (*(++p) != '\0');
439 for (i = 0; surf_storage_model_description[i].name; i++)
440 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
441 surf_storage_model_description[i].name);
443 ".\n (use 'help' as a value to see the long description of each model)");
444 default_value = xbt_strdup("default");
445 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
446 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
449 /* ********************************************************************* */
450 /* TUTORIAL: New model */
452 "The model to use for the New model. Possible values: ");
454 while (*(++p) != '\0');
455 for (i = 0; surf_new_model_description[i].name; i++)
456 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
457 surf_new_model_description[i].name);
459 ".\n (use 'help' as a value to see the long description of each model)");
460 default_value = xbt_strdup("default");
461 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
462 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
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 default_value = xbt_strdup("LV08");
476 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
477 &default_value, 1, 1, &_sg_cfg_cb__network_model,
481 "The optimization modes to use for the network. Possible values: ");
483 while (*(++p) != '\0');
484 for (i = 0; surf_optimization_mode_description[i].name; i++)
485 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
486 surf_optimization_mode_description[i].name);
488 ".\n (use 'help' as a value to see the long description of each optimization mode)");
489 default_value = xbt_strdup("Lazy");
490 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
491 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
494 "The model to use for the workstation. Possible values: ");
496 while (*(++p) != '\0');
497 for (i = 0; surf_workstation_model_description[i].name; i++)
498 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
499 surf_workstation_model_description[i].name);
501 ".\n (use 'help' as a value to see the long description of each model)");
502 default_value = xbt_strdup("default");
503 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
504 &default_value, 1, 1,
505 &_sg_cfg_cb__workstation_model, NULL);
507 xbt_free(description);
509 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
510 "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)",
511 xbt_cfgelm_double, NULL, 1, 1,
512 _sg_cfg_cb__tcp_gamma, NULL);
513 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
515 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
516 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
517 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
518 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
520 /* The parameters of network models */
522 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
523 "Minimum gap between two overlapping sends",
524 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
525 _sg_cfg_cb__sender_gap, NULL);
527 double_default_value = 1.0; // FIXME use setdefault everywhere here!
528 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
529 "Correction factor to apply to the provided latency (default value set by network model)",
530 xbt_cfgelm_double, &double_default_value, 1, 1,
531 _sg_cfg_cb__latency_factor, NULL);
532 double_default_value = 1.0;
533 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
534 "Correction factor to apply to the provided bandwidth (default value set by network model)",
535 xbt_cfgelm_double, &double_default_value, 1, 1,
536 _sg_cfg_cb__bandwidth_factor, NULL);
538 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
539 "Correction factor to apply to the weight of competing streams (default value set by network model)",
540 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
541 _sg_cfg_cb__weight_S, NULL);
544 xbt_cfg_register(&_sg_cfg_set, "path",
545 "Lookup path for inclusions in platform and deployment XML files",
546 xbt_cfgelm_string, NULL, 0, 0,
547 _sg_cfg_cb__surf_path, NULL);
549 default_value = (char*)"off";
550 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
551 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
552 xbt_cfgelm_boolean, &default_value, 0, 1,
554 default_value = (char*)"off";
555 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
556 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
557 xbt_cfgelm_boolean, &default_value, 0, 1,
561 /* do model-checking */
562 default_value = (char*)"off";
563 xbt_cfg_register(&_sg_cfg_set, "model-check",
564 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
565 xbt_cfgelm_boolean, NULL, 0, 1,
566 _sg_cfg_cb_model_check, NULL);
567 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", default_value);
569 /* do stateful model-checking */
570 default_value = (char*)"off";
571 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
572 "Specify the amount of steps between checkpoints during stateful model-checking (default: off => stateless verification). "
573 "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.",
574 xbt_cfgelm_boolean, NULL, 0, 1,
575 _mc_cfg_cb_checkpoint, NULL);
576 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/checkpoint", default_value);
578 /* do liveness model-checking */
579 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
580 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
581 xbt_cfgelm_string, NULL, 0, 1,
582 _mc_cfg_cb_property, NULL);
583 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
585 /* Specify the kind of model-checking reduction */
586 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
587 "Specify the kind of exploration reduction (either none or DPOR)",
588 xbt_cfgelm_string, NULL, 0, 1,
589 _mc_cfg_cb_reduce, NULL);
590 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
592 /* Enable/disable timeout for wait requests with model-checking */
593 default_value = (char*)"off";
594 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
595 "Enable/Disable timeout for wait requests",
596 xbt_cfgelm_boolean, NULL, 0, 1,
597 _mc_cfg_cb_timeout, NULL);
598 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", default_value);
600 /* Set max depth exploration */
601 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
602 "Specify the max depth of exploration (default : 1000)",
603 xbt_cfgelm_int, NULL, 0, 1,
604 _mc_cfg_cb_max_depth, NULL);
605 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
607 /* Set number of visited state stored for state comparison reduction*/
608 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
609 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
610 xbt_cfgelm_int, NULL, 0, 1,
611 _mc_cfg_cb_visited, NULL);
612 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
614 /* Set file name for dot output of graph state */
615 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
616 "Specify the name of dot file corresponding to graph state",
617 xbt_cfgelm_string, NULL, 0, 1,
618 _mc_cfg_cb_dot_output, NULL);
619 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
622 /* do verbose-exit */
623 default_value = (char*)"on";
624 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
625 "Activate the \"do nothing\" mode in Ctrl-C",
626 xbt_cfgelm_boolean, &default_value, 0, 1,
627 _sg_cfg_cb_verbose_exit, NULL);
630 /* context factory */
631 default_value = xbt_strdup("ucontext");
632 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
633 "Context factory to use in SIMIX (ucontext, thread or raw)",
634 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
636 /* stack size of contexts in Ko */
637 default_value_int = 128;
638 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
639 "Stack size of contexts in Kib (ucontext or raw only)",
640 xbt_cfgelm_int, &default_value_int, 1, 1,
641 _sg_cfg_cb_context_stack_size, NULL);
643 /* number of parallel threads for user processes */
644 default_value_int = 1;
645 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
646 "Number of parallel threads used to execute user contexts",
647 xbt_cfgelm_int, &default_value_int, 1, 1,
648 _sg_cfg_cb_contexts_nthreads, NULL);
650 /* minimal number of user contexts to be run in parallel */
651 default_value_int = 2;
652 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
653 "Minimal number of user contexts to be run in parallel (raw contexts only)",
654 xbt_cfgelm_int, &default_value_int, 1, 1,
655 _sg_cfg_cb_contexts_parallel_threshold, NULL);
657 /* synchronization mode for parallel user contexts */
659 default_value = xbt_strdup("futex");
660 #else //No futex on mac and posix is unimplememted yet
661 default_value = xbt_strdup("busy_wait");
663 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
664 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
665 xbt_cfgelm_string, &default_value, 1, 1,
666 _sg_cfg_cb_contexts_parallel_mode, NULL);
668 default_value = (char*)"no";
669 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
670 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
671 xbt_cfgelm_boolean, &default_value, 1, 1,
672 _sg_cfg_cb__surf_network_coordinates, NULL);
673 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", default_value);
675 default_value = (char*)"no";
676 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
677 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
678 xbt_cfgelm_boolean, &default_value, 0, 1,
679 _sg_cfg_cb__surf_network_crosstraffic, NULL);
680 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", default_value);
683 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
684 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
685 xbt_cfgelm_double, NULL, 1, 1,
686 _sg_cfg_cb__gtnets_jitter, NULL);
687 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
689 default_value_int = 10;
690 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
691 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
692 xbt_cfgelm_int, &default_value_int, 0, 1,
693 _sg_cfg_cb__gtnets_jitter_seed, NULL);
696 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
697 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
698 xbt_cfgelm_string, NULL, 1, 1,
700 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
704 double default_reference_speed = 20000.0;
705 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
706 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
707 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
710 default_value = xbt_strdup("no");
711 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
712 "Boolean indicating whether we should display the timing after simulation.",
713 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
715 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", default_value);
717 default_value = (char*)"yes";
718 xbt_cfg_register(&_sg_cfg_set, "smpi/use_shared_malloc",
719 "Boolean indicating whether we should use shared memory when using SMPI_SHARED_MALLOC. Allows user to disable it for debug purposes.",
720 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
722 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", default_value);
724 double default_threshold = 1e-6;
725 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
726 "Minimal computation time (in seconds) not discarded.",
727 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
730 int default_small_messages_threshold = 0;
731 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
732 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
733 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
736 int default_send_is_detached_threshold = 65536;
737 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
738 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
739 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
742 //For smpi/bw_factor and smpi/lat_factor
743 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
744 //test is if( size >= thresholdN ) return valueN;
745 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
746 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
747 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
748 "Bandwidth factors for smpi.",
749 xbt_cfgelm_string, NULL, 1, 1, NULL,
751 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");
753 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
754 "Latency factors for smpi.",
755 xbt_cfgelm_string, NULL, 1, 1, NULL,
757 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");
759 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
760 "Small messages timings (MPI_Send minimum time for small messages)",
761 xbt_cfgelm_string, NULL, 1, 1, NULL,
763 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
765 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
766 "Small messages timings (MPI_Isend minimum time for small messages)",
767 xbt_cfgelm_string, NULL, 1, 1, NULL,
769 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
771 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
772 "Small messages timings (MPI_Recv minimum time for small messages)",
773 xbt_cfgelm_string, NULL, 1, 1, NULL,
775 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
776 double default_iprobe_time = 1e-4;
777 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
778 "Minimum time to inject inside a call to MPI_Iprobe",
779 xbt_cfgelm_double, &default_iprobe_time, 1, 1, NULL,
781 default_value = xbt_strdup("default");
782 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
783 "Which collective selector to use",
784 xbt_cfgelm_string, &default_value, 1, 1, NULL,
787 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
788 "Which collective to use for gather",
789 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_gather,
792 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
793 "Which collective to use for allgather",
794 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgather,
797 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
798 "Which collective to use for barrier",
799 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_barrier,
802 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
803 "Which collective to use for reduce_scatter",
804 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce_scatter,
807 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
808 "Which collective to use for scatter",
809 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_scatter,
812 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
813 "Which collective to use for allgatherv",
814 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgatherv,
817 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
818 "Which collective to use for allreduce",
819 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allreduce,
822 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
823 "Which collective to use for alltoall",
824 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoall,
827 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
828 "Which collective to use for alltoallv",
829 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoallv,
832 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
833 "Which collective to use for bcast",
834 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_bcast,
837 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
838 "Which collective to use for reduce",
839 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce,
843 default_value = (char*)"yes";
844 xbt_cfg_register(&_sg_cfg_set, "clean_atexit",
845 "\"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.",
846 xbt_cfgelm_boolean, &default_value, 1, 1,
847 _sg_cfg_cb_clean_atexit, NULL);
848 xbt_cfg_setdefault_boolean(_sg_cfg_set, "clean_atexit", default_value);
851 /* retrieves the current directory of the current process */
852 const char *initial_path = __surf_get_initial_path();
853 xbt_assert((initial_path),
854 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
856 surf_path = xbt_dynar_new(sizeof(char *), NULL);
857 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
862 sg_config_cmd_line(argc, argv);
864 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
867 XBT_WARN("Call to sg_config_init() after initialization ignored");
871 void sg_config_finalize(void)
873 if (!_sg_init_status)
874 return; /* Not initialized yet. Nothing to do */
876 xbt_cfg_free(&_sg_cfg_set);
880 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
881 void surf_config_models_setup()
883 char *workstation_model_name;
884 int workstation_id = -1;
885 char *network_model_name = NULL;
886 char *cpu_model_name = NULL;
888 char *storage_model_name = NULL;
890 workstation_model_name =
891 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
892 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
893 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
894 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
896 /* Check whether we use a net/cpu model differing from the default ones, in which case
897 * we should switch to the "compound" workstation model to correctly dispatch stuff to
898 * the right net/cpu models.
901 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
902 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
903 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
905 const char *val = "compound";
907 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
908 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
909 workstation_model_name = (char *) "compound";
912 XBT_DEBUG("Workstation model: %s", workstation_model_name);
914 find_model_description(surf_workstation_model_description,
915 workstation_model_name);
916 if (!strcmp(workstation_model_name, "compound")) {
920 xbt_assert(cpu_model_name,
921 "Set a cpu model to use with the 'compound' workstation model");
923 xbt_assert(network_model_name,
924 "Set a network model to use with the 'compound' workstation model");
927 find_model_description(surf_network_model_description,
930 find_model_description(surf_cpu_model_description, cpu_model_name);
932 surf_cpu_model_description[cpu_id].model_init_preparse();
933 surf_network_model_description[network_id].model_init_preparse();
936 XBT_DEBUG("Call workstation_model_init");
937 surf_workstation_model_description[workstation_id].model_init_preparse();
939 XBT_DEBUG("Call storage_model_init");
940 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
941 surf_storage_model_description[storage_id].model_init_preparse();
943 /* ********************************************************************* */
944 /* TUTORIAL: New model */
945 int new_model_id = -1;
946 char *new_model_name = NULL;
947 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
948 XBT_DEBUG("Call new model_init");
949 new_model_id = find_model_description(surf_new_model_description, new_model_name);
950 surf_new_model_description[new_model_id].model_init_preparse();
951 /* ********************************************************************* */
954 int sg_cfg_get_int(const char* name)
956 return xbt_cfg_get_int(_sg_cfg_set,name);
958 double sg_cfg_get_double(const char* name)
960 return xbt_cfg_get_double(_sg_cfg_set,name);
962 char* sg_cfg_get_string(const char* name)
964 return xbt_cfg_get_string(_sg_cfg_set,name);
966 int sg_cfg_get_boolean(const char* name)
968 return xbt_cfg_get_boolean(_sg_cfg_set,name);
970 void sg_cfg_get_peer(const char *name, char **peer, int *port)
972 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
974 xbt_dynar_t sg_cfg_get_dynar(const char* name)
976 return xbt_cfg_get_dynar(_sg_cfg_set,name);