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);
281 /* callback of the inclusion path */
282 static void _sg_cfg_cb__surf_path(const char *name, int pos)
284 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
285 xbt_dynar_push(surf_path, &path);
288 /* callback to decide if we want to use the model-checking */
289 #include "xbt_modinter.h"
291 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
294 static void _sg_cfg_cb_model_check(const char *name, int pos)
297 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
299 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
300 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");
305 extern int _sg_do_verbose_exit;
307 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
309 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
313 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
314 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
317 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
319 smx_context_stack_size_was_set = 1;
320 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
323 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
325 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
328 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
330 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
333 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
335 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
336 if (!strcmp(mode_name, "posix")) {
337 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
339 else if (!strcmp(mode_name, "futex")) {
340 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
342 else if (!strcmp(mode_name, "busy_wait")) {
343 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
346 xbt_die("Command line setting of the parallel synchronization mode should "
347 "be one of \"posix\", \"futex\" or \"busy_wait\"");
351 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
354 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
356 if (!COORD_HOST_LEVEL) {
357 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
358 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
361 if (COORD_HOST_LEVEL)
362 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
365 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
368 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
372 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
374 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
377 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
379 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
383 /* create the config set, register what should be and parse the command line*/
384 void sg_config_init(int *argc, char **argv)
386 char *description = xbt_malloc(1024), *p = description;
388 double double_default_value;
389 int default_value_int;
392 /* Create the configuration support */
393 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
395 "The model to use for the CPU. Possible values: ");
397 while (*(++p) != '\0');
398 for (i = 0; surf_cpu_model_description[i].name; i++)
399 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
400 surf_cpu_model_description[i].name);
402 ".\n (use 'help' as a value to see the long description of each model)");
403 default_value = xbt_strdup("Cas01");
404 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
405 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
408 "The optimization modes to use for the CPU. Possible values: ");
410 while (*(++p) != '\0');
411 for (i = 0; surf_optimization_mode_description[i].name; i++)
412 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
413 surf_optimization_mode_description[i].name);
415 ".\n (use 'help' as a value to see the long description of each optimization mode)");
416 default_value = xbt_strdup("Lazy");
417 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
418 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
421 "The model to use for the storage. Possible values: ");
423 while (*(++p) != '\0');
424 for (i = 0; surf_storage_model_description[i].name; i++)
425 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
426 surf_storage_model_description[i].name);
428 ".\n (use 'help' as a value to see the long description of each model)");
429 default_value = xbt_strdup("default");
430 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
431 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
434 /* ********************************************************************* */
435 /* TUTORIAL: New model */
437 "The model to use for the New model. Possible values: ");
439 while (*(++p) != '\0');
440 for (i = 0; surf_new_model_description[i].name; i++)
441 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
442 surf_new_model_description[i].name);
444 ".\n (use 'help' as a value to see the long description of each model)");
445 default_value = xbt_strdup("default");
446 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
447 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
449 /* ********************************************************************* */
452 "The model to use for the network. Possible values: ");
454 while (*(++p) != '\0');
455 for (i = 0; surf_network_model_description[i].name; i++)
456 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
457 surf_network_model_description[i].name);
459 ".\n (use 'help' as a value to see the long description of each model)");
460 default_value = xbt_strdup("LV08");
461 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
462 &default_value, 1, 1, &_sg_cfg_cb__network_model,
466 "The optimization modes to use for the network. Possible values: ");
468 while (*(++p) != '\0');
469 for (i = 0; surf_optimization_mode_description[i].name; i++)
470 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
471 surf_optimization_mode_description[i].name);
473 ".\n (use 'help' as a value to see the long description of each optimization mode)");
474 default_value = xbt_strdup("Lazy");
475 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
476 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
479 "The model to use for the workstation. Possible values: ");
481 while (*(++p) != '\0');
482 for (i = 0; surf_workstation_model_description[i].name; i++)
483 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
484 surf_workstation_model_description[i].name);
486 ".\n (use 'help' as a value to see the long description of each model)");
487 default_value = xbt_strdup("default");
488 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
489 &default_value, 1, 1,
490 &_sg_cfg_cb__workstation_model, NULL);
492 xbt_free(description);
494 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
495 "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)",
496 xbt_cfgelm_double, NULL, 1, 1,
497 _sg_cfg_cb__tcp_gamma, NULL);
498 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
500 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
501 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
502 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
503 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
505 /* The parameters of network models */
507 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
508 "Minimum gap between two overlapping sends",
509 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
510 _sg_cfg_cb__sender_gap, NULL);
512 double_default_value = 1.0; // FIXME use setdefault everywhere here!
513 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
514 "Correction factor to apply to the provided latency (default value set by network model)",
515 xbt_cfgelm_double, &double_default_value, 1, 1,
516 _sg_cfg_cb__latency_factor, NULL);
517 double_default_value = 1.0;
518 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
519 "Correction factor to apply to the provided bandwidth (default value set by network model)",
520 xbt_cfgelm_double, &double_default_value, 1, 1,
521 _sg_cfg_cb__bandwidth_factor, NULL);
523 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
524 "Correction factor to apply to the weight of competing streams (default value set by network model)",
525 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
526 _sg_cfg_cb__weight_S, NULL);
529 xbt_cfg_register(&_sg_cfg_set, "path",
530 "Lookup path for inclusions in platform and deployment XML files",
531 xbt_cfgelm_string, NULL, 0, 0,
532 _sg_cfg_cb__surf_path, NULL);
534 default_value = xbt_strdup("off");
535 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
536 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
537 xbt_cfgelm_boolean, &default_value, 0, 1,
539 default_value = xbt_strdup("off");
540 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
541 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
542 xbt_cfgelm_boolean, &default_value, 0, 1,
546 /* do model-checking */
547 default_value = xbt_strdup("off");
548 xbt_cfg_register(&_sg_cfg_set, "model-check",
549 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
550 xbt_cfgelm_boolean, NULL, 0, 1,
551 _sg_cfg_cb_model_check, NULL);
552 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", default_value);
554 /* do stateful model-checking */
555 default_value = xbt_strdup("off");
556 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
557 "Specify the amount of steps between checkpoints during stateful model-checking (default: off => stateless verification). "
558 "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.",
559 xbt_cfgelm_boolean, NULL, 0, 1,
560 _mc_cfg_cb_checkpoint, NULL);
561 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/checkpoint", default_value);
563 /* do liveness model-checking */
564 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
565 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
566 xbt_cfgelm_string, NULL, 0, 1,
567 _mc_cfg_cb_property, NULL);
568 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
570 /* Specify the kind of model-checking reduction */
571 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
572 "Specify the kind of exploration reduction (either none or DPOR)",
573 xbt_cfgelm_string, NULL, 0, 1,
574 _mc_cfg_cb_reduce, NULL);
575 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
577 /* Enable/disable timeout for wait requests with model-checking */
578 default_value = xbt_strdup("off");
579 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
580 "Enable/Disable timeout for wait requests",
581 xbt_cfgelm_boolean, NULL, 0, 1,
582 _mc_cfg_cb_timeout, NULL);
583 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", default_value);
585 /* Set max depth exploration */
586 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
587 "Specify the max depth of exploration (default : 1000)",
588 xbt_cfgelm_int, NULL, 0, 1,
589 _mc_cfg_cb_max_depth, NULL);
590 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
592 /* Set number of visited state stored for state comparison reduction*/
593 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
594 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
595 xbt_cfgelm_int, NULL, 0, 1,
596 _mc_cfg_cb_visited, NULL);
597 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
599 /* Set file name for dot output of graph state */
600 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
601 "Specify the name of dot file corresponding to graph state",
602 xbt_cfgelm_string, NULL, 0, 1,
603 _mc_cfg_cb_dot_output, NULL);
604 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
607 /* do verbose-exit */
608 default_value = xbt_strdup("on");
609 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
610 "Activate the \"do nothing\" mode in Ctrl-C",
611 xbt_cfgelm_boolean, &default_value, 0, 1,
612 _sg_cfg_cb_verbose_exit, NULL);
615 /* context factory */
616 default_value = xbt_strdup("ucontext");
617 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
618 "Context factory to use in SIMIX (ucontext, thread or raw)",
619 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
621 /* stack size of contexts in Ko */
622 default_value_int = 128;
623 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
624 "Stack size of contexts in Kib (ucontext or raw only)",
625 xbt_cfgelm_int, &default_value_int, 1, 1,
626 _sg_cfg_cb_context_stack_size, NULL);
628 /* number of parallel threads for user processes */
629 default_value_int = 1;
630 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
631 "Number of parallel threads used to execute user contexts",
632 xbt_cfgelm_int, &default_value_int, 1, 1,
633 _sg_cfg_cb_contexts_nthreads, NULL);
635 /* minimal number of user contexts to be run in parallel */
636 default_value_int = 2;
637 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
638 "Minimal number of user contexts to be run in parallel (raw contexts only)",
639 xbt_cfgelm_int, &default_value_int, 1, 1,
640 _sg_cfg_cb_contexts_parallel_threshold, NULL);
642 /* synchronization mode for parallel user contexts */
644 default_value = xbt_strdup("futex");
645 #else //No futex on mac and posix is unimplememted yet
646 default_value = xbt_strdup("busy_wait");
648 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
649 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
650 xbt_cfgelm_string, &default_value, 1, 1,
651 _sg_cfg_cb_contexts_parallel_mode, NULL);
653 default_value = xbt_strdup("no");
654 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
655 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
656 xbt_cfgelm_boolean, &default_value, 1, 1,
657 _sg_cfg_cb__surf_network_coordinates, NULL);
658 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", default_value);
660 default_value = xbt_strdup("no");
661 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
662 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
663 xbt_cfgelm_boolean, &default_value, 0, 1,
664 _sg_cfg_cb__surf_network_crosstraffic, NULL);
665 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", default_value);
668 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
669 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
670 xbt_cfgelm_double, NULL, 1, 1,
671 _sg_cfg_cb__gtnets_jitter, NULL);
672 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
674 default_value_int = 10;
675 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
676 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
677 xbt_cfgelm_int, &default_value_int, 0, 1,
678 _sg_cfg_cb__gtnets_jitter_seed, NULL);
681 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
682 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
683 xbt_cfgelm_string, NULL, 1, 1,
685 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
689 double default_reference_speed = 20000.0;
690 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
691 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
692 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
695 default_value = xbt_strdup("no");
696 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
697 "Boolean indicating whether we should display the timing after simulation.",
698 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
700 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", default_value);
702 double default_threshold = 1e-6;
703 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
704 "Minimal computation time (in seconds) not discarded.",
705 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
708 int default_small_messages_threshold = 0;
709 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
710 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
711 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
714 int default_send_is_detached_threshold = 65536;
715 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
716 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
717 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
720 //For smpi/bw_factor and smpi/lat_factor
721 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
722 //test is if( size >= thresholdN ) return valueN;
723 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
724 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
725 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
726 "Bandwidth factors for smpi.",
727 xbt_cfgelm_string, NULL, 1, 1, NULL,
729 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/bw_factor", "65472:0.940694;15424:0.697866;9376:0.58729;5776:1.08739;3484:0.77493;1426:0.608902;732:0.341987;257:0.338112;0:0.812084");
731 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
732 "Latency factors for smpi.",
733 xbt_cfgelm_string, NULL, 1, 1, NULL,
735 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/lat_factor", "65472:11.6436;15424:3.48845;9376:2.59299;5776:2.18796;3484:1.88101;1426:1.61075;732:1.9503;257:1.95341;0:2.01467");
737 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
738 "Small messages timings (MPI_Send minimum time for small messages)",
739 xbt_cfgelm_string, NULL, 1, 1, NULL,
741 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
743 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
744 "Small messages timings (MPI_Isend minimum time for small messages)",
745 xbt_cfgelm_string, NULL, 1, 1, NULL,
747 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
749 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
750 "Small messages timings (MPI_Recv minimum time for small messages)",
751 xbt_cfgelm_string, NULL, 1, 1, NULL,
753 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
754 double default_iprobe_time = 1e-4;
755 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
756 "Minimum time to inject inside a call to MPI_Iprobe",
757 xbt_cfgelm_double, &default_iprobe_time, 1, 1, NULL,
759 default_value = xbt_strdup("default");
760 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
761 "Which collective selector to use",
762 xbt_cfgelm_string, &default_value, 1, 1, NULL,
765 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
766 "Which collective to use for gather",
767 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_gather,
770 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
771 "Which collective to use for allgather",
772 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgather,
775 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
776 "Which collective to use for allgatherv",
777 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgatherv,
780 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
781 "Which collective to use for allreduce",
782 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allreduce,
785 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
786 "Which collective to use for alltoall",
787 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoall,
790 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
791 "Which collective to use for alltoallv",
792 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoallv,
795 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
796 "Which collective to use for bcast",
797 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_bcast,
800 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
801 "Which collective to use for reduce",
802 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce,
807 /* retrieves the current directory of the current process */
808 const char *initial_path = __surf_get_initial_path();
809 xbt_assert((initial_path),
810 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
812 surf_path = xbt_dynar_new(sizeof(char *), NULL);
813 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
818 sg_config_cmd_line(argc, argv);
820 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
823 XBT_WARN("Call to sg_config_init() after initialization ignored");
827 void sg_config_finalize(void)
829 if (!_sg_init_status)
830 return; /* Not initialized yet. Nothing to do */
832 xbt_cfg_free(&_sg_cfg_set);
836 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
837 void surf_config_models_setup()
839 char *workstation_model_name;
840 int workstation_id = -1;
841 char *network_model_name = NULL;
842 char *cpu_model_name = NULL;
844 char *storage_model_name = NULL;
846 workstation_model_name =
847 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
848 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
849 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
850 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
852 /* Check whether we use a net/cpu model differing from the default ones, in which case
853 * we should switch to the "compound" workstation model to correctly dispatch stuff to
854 * the right net/cpu models.
857 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
858 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
859 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
861 const char *val = "compound";
863 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
864 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
865 workstation_model_name = (char *) "compound";
868 XBT_DEBUG("Workstation model: %s", workstation_model_name);
870 find_model_description(surf_workstation_model_description,
871 workstation_model_name);
872 if (!strcmp(workstation_model_name, "compound")) {
876 xbt_assert(cpu_model_name,
877 "Set a cpu model to use with the 'compound' workstation model");
879 xbt_assert(network_model_name,
880 "Set a network model to use with the 'compound' workstation model");
883 find_model_description(surf_network_model_description,
886 find_model_description(surf_cpu_model_description, cpu_model_name);
888 surf_cpu_model_description[cpu_id].model_init_preparse();
889 surf_network_model_description[network_id].model_init_preparse();
892 XBT_DEBUG("Call workstation_model_init");
893 surf_workstation_model_description[workstation_id].model_init_preparse();
895 XBT_DEBUG("Call storage_model_init");
896 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
897 surf_storage_model_description[storage_id].model_init_preparse();
899 /* ********************************************************************* */
900 /* TUTORIAL: New model */
901 int new_model_id = -1;
902 char *new_model_name = NULL;
903 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
904 XBT_DEBUG("Call new model_init");
905 new_model_id = find_model_description(surf_new_model_description, new_model_name);
906 surf_new_model_description[new_model_id].model_init_preparse();
907 /* ********************************************************************* */
910 int sg_cfg_get_int(const char* name)
912 return xbt_cfg_get_int(_sg_cfg_set,name);
914 double sg_cfg_get_double(const char* name)
916 return xbt_cfg_get_double(_sg_cfg_set,name);
918 char* sg_cfg_get_string(const char* name)
920 return xbt_cfg_get_string(_sg_cfg_set,name);
922 int sg_cfg_get_boolean(const char* name)
924 return xbt_cfg_get_boolean(_sg_cfg_set,name);
926 void sg_cfg_get_peer(const char *name, char **peer, int *port)
928 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
930 xbt_dynar_t sg_cfg_get_dynar(const char* name)
932 return xbt_cfg_get_dynar(_sg_cfg_set,name);