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);
322 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
323 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
326 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
328 smx_context_stack_size_was_set = 1;
329 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
332 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
334 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
337 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
339 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
342 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
344 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
345 if (!strcmp(mode_name, "posix")) {
346 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
348 else if (!strcmp(mode_name, "futex")) {
349 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
351 else if (!strcmp(mode_name, "busy_wait")) {
352 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
355 xbt_die("Command line setting of the parallel synchronization mode should "
356 "be one of \"posix\", \"futex\" or \"busy_wait\"");
360 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
363 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
365 if (!COORD_HOST_LEVEL) {
366 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
367 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
370 if (COORD_HOST_LEVEL)
371 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
374 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
377 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
381 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
383 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
386 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
388 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
392 /* create the config set, register what should be and parse the command line*/
393 void sg_config_init(int *argc, char **argv)
395 char *description = xbt_malloc(1024), *p = description;
397 double double_default_value;
398 int default_value_int;
401 /* Create the configuration support */
402 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
404 "The model to use for the CPU. Possible values: ");
406 while (*(++p) != '\0');
407 for (i = 0; surf_cpu_model_description[i].name; i++)
408 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
409 surf_cpu_model_description[i].name);
411 ".\n (use 'help' as a value to see the long description of each model)");
412 default_value = xbt_strdup("Cas01");
413 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
414 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
417 "The optimization modes to use for the CPU. Possible values: ");
419 while (*(++p) != '\0');
420 for (i = 0; surf_optimization_mode_description[i].name; i++)
421 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
422 surf_optimization_mode_description[i].name);
424 ".\n (use 'help' as a value to see the long description of each optimization mode)");
425 default_value = xbt_strdup("Lazy");
426 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
427 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
430 "The model to use for the storage. Possible values: ");
432 while (*(++p) != '\0');
433 for (i = 0; surf_storage_model_description[i].name; i++)
434 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
435 surf_storage_model_description[i].name);
437 ".\n (use 'help' as a value to see the long description of each model)");
438 default_value = xbt_strdup("default");
439 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
440 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
443 /* ********************************************************************* */
444 /* TUTORIAL: New model */
446 "The model to use for the New model. Possible values: ");
448 while (*(++p) != '\0');
449 for (i = 0; surf_new_model_description[i].name; i++)
450 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
451 surf_new_model_description[i].name);
453 ".\n (use 'help' as a value to see the long description of each model)");
454 default_value = xbt_strdup("default");
455 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
456 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
458 /* ********************************************************************* */
461 "The model to use for the network. Possible values: ");
463 while (*(++p) != '\0');
464 for (i = 0; surf_network_model_description[i].name; i++)
465 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
466 surf_network_model_description[i].name);
468 ".\n (use 'help' as a value to see the long description of each model)");
469 default_value = xbt_strdup("LV08");
470 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
471 &default_value, 1, 1, &_sg_cfg_cb__network_model,
475 "The optimization modes to use for the network. Possible values: ");
477 while (*(++p) != '\0');
478 for (i = 0; surf_optimization_mode_description[i].name; i++)
479 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
480 surf_optimization_mode_description[i].name);
482 ".\n (use 'help' as a value to see the long description of each optimization mode)");
483 default_value = xbt_strdup("Lazy");
484 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
485 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
488 "The model to use for the workstation. Possible values: ");
490 while (*(++p) != '\0');
491 for (i = 0; surf_workstation_model_description[i].name; i++)
492 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
493 surf_workstation_model_description[i].name);
495 ".\n (use 'help' as a value to see the long description of each model)");
496 default_value = xbt_strdup("default");
497 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
498 &default_value, 1, 1,
499 &_sg_cfg_cb__workstation_model, NULL);
501 xbt_free(description);
503 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
504 "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)",
505 xbt_cfgelm_double, NULL, 1, 1,
506 _sg_cfg_cb__tcp_gamma, NULL);
507 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
509 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
510 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
511 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
512 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
514 /* The parameters of network models */
516 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
517 "Minimum gap between two overlapping sends",
518 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
519 _sg_cfg_cb__sender_gap, NULL);
521 double_default_value = 1.0; // FIXME use setdefault everywhere here!
522 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
523 "Correction factor to apply to the provided latency (default value set by network model)",
524 xbt_cfgelm_double, &double_default_value, 1, 1,
525 _sg_cfg_cb__latency_factor, NULL);
526 double_default_value = 1.0;
527 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
528 "Correction factor to apply to the provided bandwidth (default value set by network model)",
529 xbt_cfgelm_double, &double_default_value, 1, 1,
530 _sg_cfg_cb__bandwidth_factor, NULL);
532 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
533 "Correction factor to apply to the weight of competing streams (default value set by network model)",
534 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
535 _sg_cfg_cb__weight_S, NULL);
538 xbt_cfg_register(&_sg_cfg_set, "path",
539 "Lookup path for inclusions in platform and deployment XML files",
540 xbt_cfgelm_string, NULL, 0, 0,
541 _sg_cfg_cb__surf_path, NULL);
543 default_value = xbt_strdup("off");
544 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
545 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
546 xbt_cfgelm_boolean, &default_value, 0, 1,
548 default_value = xbt_strdup("off");
549 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
550 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
551 xbt_cfgelm_boolean, &default_value, 0, 1,
555 /* do model-checking */
556 default_value = xbt_strdup("off");
557 xbt_cfg_register(&_sg_cfg_set, "model-check",
558 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
559 xbt_cfgelm_boolean, NULL, 0, 1,
560 _sg_cfg_cb_model_check, NULL);
561 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", default_value);
563 /* do stateful model-checking */
564 default_value = xbt_strdup("off");
565 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
566 "Specify the amount of steps between checkpoints during stateful model-checking (default: off => stateless verification). "
567 "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.",
568 xbt_cfgelm_boolean, NULL, 0, 1,
569 _mc_cfg_cb_checkpoint, NULL);
570 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/checkpoint", default_value);
572 /* do liveness model-checking */
573 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
574 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
575 xbt_cfgelm_string, NULL, 0, 1,
576 _mc_cfg_cb_property, NULL);
577 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
579 /* Specify the kind of model-checking reduction */
580 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
581 "Specify the kind of exploration reduction (either none or DPOR)",
582 xbt_cfgelm_string, NULL, 0, 1,
583 _mc_cfg_cb_reduce, NULL);
584 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
586 /* Enable/disable timeout for wait requests with model-checking */
587 default_value = xbt_strdup("off");
588 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
589 "Enable/Disable timeout for wait requests",
590 xbt_cfgelm_boolean, NULL, 0, 1,
591 _mc_cfg_cb_timeout, NULL);
592 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", default_value);
594 /* Set max depth exploration */
595 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
596 "Specify the max depth of exploration (default : 1000)",
597 xbt_cfgelm_int, NULL, 0, 1,
598 _mc_cfg_cb_max_depth, NULL);
599 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
601 /* Set number of visited state stored for state comparison reduction*/
602 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
603 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
604 xbt_cfgelm_int, NULL, 0, 1,
605 _mc_cfg_cb_visited, NULL);
606 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
608 /* Set file name for dot output of graph state */
609 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
610 "Specify the name of dot file corresponding to graph state",
611 xbt_cfgelm_string, NULL, 0, 1,
612 _mc_cfg_cb_dot_output, NULL);
613 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
616 /* do verbose-exit */
617 default_value = xbt_strdup("on");
618 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
619 "Activate the \"do nothing\" mode in Ctrl-C",
620 xbt_cfgelm_boolean, &default_value, 0, 1,
621 _sg_cfg_cb_verbose_exit, NULL);
624 /* context factory */
625 default_value = xbt_strdup("ucontext");
626 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
627 "Context factory to use in SIMIX (ucontext, thread or raw)",
628 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
630 /* stack size of contexts in Ko */
631 default_value_int = 128;
632 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
633 "Stack size of contexts in Kib (ucontext or raw only)",
634 xbt_cfgelm_int, &default_value_int, 1, 1,
635 _sg_cfg_cb_context_stack_size, NULL);
637 /* number of parallel threads for user processes */
638 default_value_int = 1;
639 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
640 "Number of parallel threads used to execute user contexts",
641 xbt_cfgelm_int, &default_value_int, 1, 1,
642 _sg_cfg_cb_contexts_nthreads, NULL);
644 /* minimal number of user contexts to be run in parallel */
645 default_value_int = 2;
646 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
647 "Minimal number of user contexts to be run in parallel (raw contexts only)",
648 xbt_cfgelm_int, &default_value_int, 1, 1,
649 _sg_cfg_cb_contexts_parallel_threshold, NULL);
651 /* synchronization mode for parallel user contexts */
653 default_value = xbt_strdup("futex");
654 #else //No futex on mac and posix is unimplememted yet
655 default_value = xbt_strdup("busy_wait");
657 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
658 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
659 xbt_cfgelm_string, &default_value, 1, 1,
660 _sg_cfg_cb_contexts_parallel_mode, NULL);
662 default_value = xbt_strdup("no");
663 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
664 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
665 xbt_cfgelm_boolean, &default_value, 1, 1,
666 _sg_cfg_cb__surf_network_coordinates, NULL);
667 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", default_value);
669 default_value = xbt_strdup("no");
670 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
671 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
672 xbt_cfgelm_boolean, &default_value, 0, 1,
673 _sg_cfg_cb__surf_network_crosstraffic, NULL);
674 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", default_value);
677 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
678 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
679 xbt_cfgelm_double, NULL, 1, 1,
680 _sg_cfg_cb__gtnets_jitter, NULL);
681 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
683 default_value_int = 10;
684 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
685 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
686 xbt_cfgelm_int, &default_value_int, 0, 1,
687 _sg_cfg_cb__gtnets_jitter_seed, NULL);
690 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
691 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
692 xbt_cfgelm_string, NULL, 1, 1,
694 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
698 double default_reference_speed = 20000.0;
699 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
700 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
701 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
704 default_value = xbt_strdup("no");
705 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
706 "Boolean indicating whether we should display the timing after simulation.",
707 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
709 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", default_value);
711 default_value = xbt_strdup("yes");
712 xbt_cfg_register(&_sg_cfg_set, "smpi/use_shared_malloc",
713 "Boolean indicating whether we should use shared memory when using SMPI_SHARED_MALLOC. Allows user to disable it for debug purposes.",
714 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
716 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", default_value);
718 double default_threshold = 1e-6;
719 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
720 "Minimal computation time (in seconds) not discarded.",
721 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
724 int default_small_messages_threshold = 0;
725 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
726 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
727 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
730 int default_send_is_detached_threshold = 65536;
731 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
732 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
733 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
736 //For smpi/bw_factor and smpi/lat_factor
737 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
738 //test is if( size >= thresholdN ) return valueN;
739 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
740 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
741 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
742 "Bandwidth factors for smpi.",
743 xbt_cfgelm_string, NULL, 1, 1, NULL,
745 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");
747 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
748 "Latency factors for smpi.",
749 xbt_cfgelm_string, NULL, 1, 1, NULL,
751 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");
753 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
754 "Small messages timings (MPI_Send minimum time for small messages)",
755 xbt_cfgelm_string, NULL, 1, 1, NULL,
757 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
759 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
760 "Small messages timings (MPI_Isend minimum time for small messages)",
761 xbt_cfgelm_string, NULL, 1, 1, NULL,
763 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
765 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
766 "Small messages timings (MPI_Recv minimum time for small messages)",
767 xbt_cfgelm_string, NULL, 1, 1, NULL,
769 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
770 double default_iprobe_time = 1e-4;
771 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
772 "Minimum time to inject inside a call to MPI_Iprobe",
773 xbt_cfgelm_double, &default_iprobe_time, 1, 1, NULL,
775 default_value = xbt_strdup("default");
776 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
777 "Which collective selector to use",
778 xbt_cfgelm_string, &default_value, 1, 1, NULL,
781 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
782 "Which collective to use for gather",
783 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_gather,
786 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
787 "Which collective to use for allgather",
788 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgather,
791 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
792 "Which collective to use for barrier",
793 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_barrier,
796 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
797 "Which collective to use for reduce_scatter",
798 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce_scatter,
801 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
802 "Which collective to use for scatter",
803 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_scatter,
806 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
807 "Which collective to use for allgatherv",
808 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgatherv,
811 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
812 "Which collective to use for allreduce",
813 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allreduce,
816 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
817 "Which collective to use for alltoall",
818 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoall,
821 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
822 "Which collective to use for alltoallv",
823 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoallv,
826 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
827 "Which collective to use for bcast",
828 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_bcast,
831 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
832 "Which collective to use for reduce",
833 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce,
838 /* retrieves the current directory of the current process */
839 const char *initial_path = __surf_get_initial_path();
840 xbt_assert((initial_path),
841 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
843 surf_path = xbt_dynar_new(sizeof(char *), NULL);
844 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
849 sg_config_cmd_line(argc, argv);
851 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
854 XBT_WARN("Call to sg_config_init() after initialization ignored");
858 void sg_config_finalize(void)
860 if (!_sg_init_status)
861 return; /* Not initialized yet. Nothing to do */
863 xbt_cfg_free(&_sg_cfg_set);
867 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
868 void surf_config_models_setup()
870 char *workstation_model_name;
871 int workstation_id = -1;
872 char *network_model_name = NULL;
873 char *cpu_model_name = NULL;
875 char *storage_model_name = NULL;
877 workstation_model_name =
878 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
879 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
880 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
881 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
883 /* Check whether we use a net/cpu model differing from the default ones, in which case
884 * we should switch to the "compound" workstation model to correctly dispatch stuff to
885 * the right net/cpu models.
888 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
889 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
890 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
892 const char *val = "compound";
894 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
895 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
896 workstation_model_name = (char *) "compound";
899 XBT_DEBUG("Workstation model: %s", workstation_model_name);
901 find_model_description(surf_workstation_model_description,
902 workstation_model_name);
903 if (!strcmp(workstation_model_name, "compound")) {
907 xbt_assert(cpu_model_name,
908 "Set a cpu model to use with the 'compound' workstation model");
910 xbt_assert(network_model_name,
911 "Set a network model to use with the 'compound' workstation model");
914 find_model_description(surf_network_model_description,
917 find_model_description(surf_cpu_model_description, cpu_model_name);
919 surf_cpu_model_description[cpu_id].model_init_preparse();
920 surf_network_model_description[network_id].model_init_preparse();
923 XBT_DEBUG("Call workstation_model_init");
924 surf_workstation_model_description[workstation_id].model_init_preparse();
926 XBT_DEBUG("Call storage_model_init");
927 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
928 surf_storage_model_description[storage_id].model_init_preparse();
930 /* ********************************************************************* */
931 /* TUTORIAL: New model */
932 int new_model_id = -1;
933 char *new_model_name = NULL;
934 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
935 XBT_DEBUG("Call new model_init");
936 new_model_id = find_model_description(surf_new_model_description, new_model_name);
937 surf_new_model_description[new_model_id].model_init_preparse();
938 /* ********************************************************************* */
941 int sg_cfg_get_int(const char* name)
943 return xbt_cfg_get_int(_sg_cfg_set,name);
945 double sg_cfg_get_double(const char* name)
947 return xbt_cfg_get_double(_sg_cfg_set,name);
949 char* sg_cfg_get_string(const char* name)
951 return xbt_cfg_get_string(_sg_cfg_set,name);
953 int sg_cfg_get_boolean(const char* name)
955 return xbt_cfg_get_boolean(_sg_cfg_set,name);
957 void sg_cfg_get_peer(const char *name, char **peer, int *port)
959 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
961 xbt_dynar_t sg_cfg_get_dynar(const char* name)
963 return xbt_cfg_get_dynar(_sg_cfg_set,name);