1 /* Copyright (c) 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /* sg_config: configuration infrastructure for the simulation world */
10 #include "xbt/config.h"
12 #include "xbt/mallocator.h"
15 #include "xbt/sysdep.h"
16 #include "surf/surf.h"
17 #include "surf/maxmin.h"
18 #include "instr/instr_interface.h"
19 #include "simgrid/simix.h"
20 #include "simgrid/sg_config.h"
21 #include "smpi/smpi_interface.h"
23 #include "instr/instr.h"
25 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
26 "About the configuration of simgrid");
28 xbt_cfg_t _sg_cfg_set = NULL;
30 int _sg_init_status = 0; /* 0: beginning of time (config cannot be changed yet);
31 1: initialized: cfg_set created (config can now be changed);
32 2: configured: command line parsed and config part of platform file was integrated also, platform construction ongoing or done.
33 (Config cannot be changed anymore!) */
35 /* Parse the command line, looking for options */
36 static void sg_config_cmd_line(int *argc, char **argv)
42 for (j = i = 1; i < *argc; i++) {
43 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
44 opt = strchr(argv[i], '=');
47 xbt_cfg_set_parse(_sg_cfg_set, opt);
48 XBT_DEBUG("Did apply '%s' as config setting", opt);
49 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
51 ("Description of the configuration accepted by this simulator:\n");
52 xbt_cfg_help(_sg_cfg_set);
55 "Each of these configurations can be used by adding\n"
56 " --cfg=<option name>:<option value>\n"
57 "to the command line.\n"
58 "You can also use --help-models to see the details of all models known by this simulator.\n"
61 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
64 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
68 } else if (!strcmp(argv[i], "--help-models")) {
71 model_help("workstation", surf_workstation_model_description);
73 model_help("CPU", surf_cpu_model_description);
75 model_help("network", surf_network_model_description);
76 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
77 for (k = 0; surf_optimization_mode_description[k].name; k++)
79 surf_optimization_mode_description[k].name,
80 surf_optimization_mode_description[k].description);
81 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
84 } else if (!strcmp(argv[i], "--help-tracing")) {
97 _sg_init_status=1; // get everything cleanly cleaned on exit
102 /* callback of the workstation/model variable */
103 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
107 xbt_assert(_sg_init_status == 1,
108 "Cannot change the model after the initialization");
110 val = xbt_cfg_get_string(_sg_cfg_set, name);
112 if (!strcmp(val, "help")) {
113 model_help("workstation", surf_workstation_model_description);
117 /* Make sure that the model exists */
118 find_model_description(surf_workstation_model_description, val);
121 /* callback of the cpu/model variable */
122 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
126 xbt_assert(_sg_init_status == 1,
127 "Cannot change the model after the initialization");
129 val = xbt_cfg_get_string(_sg_cfg_set, name);
131 if (!strcmp(val, "help")) {
132 model_help("CPU", surf_cpu_model_description);
136 /* New Module missing */
137 find_model_description(surf_cpu_model_description, val);
140 /* callback of the cpu/model variable */
141 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
145 xbt_assert(_sg_init_status == 1,
146 "Cannot change the model after the initialization");
148 val = xbt_cfg_get_string(_sg_cfg_set, name);
150 if (!strcmp(val, "help")) {
151 model_help("optimization", surf_optimization_mode_description);
155 /* New Module missing */
156 find_model_description(surf_optimization_mode_description, val);
159 /* callback of the cpu/model variable */
160 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
164 xbt_assert(_sg_init_status == 1,
165 "Cannot change the model after the initialization");
167 val = xbt_cfg_get_string(_sg_cfg_set, name);
169 if (!strcmp(val, "help")) {
170 model_help("storage", surf_storage_model_description);
174 /* New Module missing */
175 find_model_description(surf_storage_model_description, val);
178 /* callback of the workstation_model variable */
179 static void _sg_cfg_cb__network_model(const char *name, int pos)
183 xbt_assert(_sg_init_status == 1,
184 "Cannot change the model after the initialization");
186 val = xbt_cfg_get_string(_sg_cfg_set, name);
188 if (!strcmp(val, "help")) {
189 model_help("network", surf_network_model_description);
193 /* New Module missing */
194 find_model_description(surf_network_model_description, val);
198 /* callbacks of the network models values */
199 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
201 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
204 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
206 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
209 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
211 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
214 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
216 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
219 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
221 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
224 static void _sg_cfg_cb__weight_S(const char *name, int pos)
226 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
229 /* callback of the inclusion path */
230 static void _sg_cfg_cb__surf_path(const char *name, int pos)
232 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
233 xbt_dynar_push(surf_path, &path);
236 /* callback to decide if we want to use the model-checking */
237 #include "xbt_modinter.h"
239 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
242 static void _sg_cfg_cb_model_check(const char *name, int pos)
245 _sg_do_model_check = xbt_cfg_get_int(_sg_cfg_set, name);
247 if (xbt_cfg_get_int(_sg_cfg_set, name)) {
248 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");
253 extern int _sg_do_verbose_exit;
255 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
257 _sg_do_verbose_exit = xbt_cfg_get_int(_sg_cfg_set, name);
261 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
262 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
265 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
267 smx_context_stack_size_was_set = 1;
268 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
271 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
273 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
276 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
278 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
281 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
283 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
284 if (!strcmp(mode_name, "posix")) {
285 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
287 else if (!strcmp(mode_name, "futex")) {
288 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
290 else if (!strcmp(mode_name, "busy_wait")) {
291 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
294 xbt_die("Command line setting of the parallel synchronization mode should "
295 "be one of \"posix\", \"futex\" or \"busy_wait\"");
299 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
302 char *val = xbt_cfg_get_string(_sg_cfg_set, name);
303 if (!strcmp(val, "yes")) {
304 if (!COORD_HOST_LEVEL) {
305 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
306 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
308 } else if (!strcmp(val, "no")) {
309 if (COORD_HOST_LEVEL)
310 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
312 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
316 static void _sg_cfg_cb_surf_nthreads(const char *name, int pos)
318 surf_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
321 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
324 sg_network_crosstraffic = xbt_cfg_get_int(_sg_cfg_set, name);
328 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
330 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
333 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
335 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
339 /* create the config set, register what should be and parse the command line*/
340 void sg_config_init(int *argc, char **argv)
342 char *description = xbt_malloc(1024), *p = description;
344 double double_default_value;
345 int default_value_int;
348 TRACE_add_start_function(TRACE_surf_alloc);
349 TRACE_add_start_function(TRACE_smpi_alloc);
351 TRACE_add_end_function(TRACE_smpi_release);
352 TRACE_add_end_function(TRACE_surf_release);
354 /* Create the configuration support */
355 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
357 "The model to use for the CPU. Possible values: ");
359 while (*(++p) != '\0');
360 for (i = 0; surf_cpu_model_description[i].name; i++)
361 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
362 surf_cpu_model_description[i].name);
364 ".\n (use 'help' as a value to see the long description of each model)");
365 default_value = xbt_strdup("Cas01");
366 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
367 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
370 "The optimization modes to use for the CPU. Possible values: ");
372 while (*(++p) != '\0');
373 for (i = 0; surf_optimization_mode_description[i].name; i++)
374 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
375 surf_optimization_mode_description[i].name);
377 ".\n (use 'help' as a value to see the long description of each optimization mode)");
378 default_value = xbt_strdup("Lazy");
379 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
380 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
383 "The model to use for the storage. Possible values: ");
385 while (*(++p) != '\0');
386 for (i = 0; surf_storage_model_description[i].name; i++)
387 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
388 surf_storage_model_description[i].name);
390 ".\n (use 'help' as a value to see the long description of each model)");
391 default_value = xbt_strdup("default");
392 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
393 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
396 /* ********************************************************************* */
397 /* TUTORIAL: New model */
399 "The model to use for the New model. Possible values: ");
401 while (*(++p) != '\0');
402 for (i = 0; surf_new_model_description[i].name; i++)
403 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
404 surf_new_model_description[i].name);
406 ".\n (use 'help' as a value to see the long description of each model)");
407 default_value = xbt_strdup("default");
408 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
409 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
411 /* ********************************************************************* */
414 "The model to use for the network. Possible values: ");
416 while (*(++p) != '\0');
417 for (i = 0; surf_network_model_description[i].name; i++)
418 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
419 surf_network_model_description[i].name);
421 ".\n (use 'help' as a value to see the long description of each model)");
422 default_value = xbt_strdup("LV08");
423 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
424 &default_value, 1, 1, &_sg_cfg_cb__network_model,
428 "The optimization modes to use for the network. Possible values: ");
430 while (*(++p) != '\0');
431 for (i = 0; surf_optimization_mode_description[i].name; i++)
432 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
433 surf_optimization_mode_description[i].name);
435 ".\n (use 'help' as a value to see the long description of each optimization mode)");
436 default_value = xbt_strdup("Lazy");
437 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
438 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
441 "The model to use for the workstation. Possible values: ");
443 while (*(++p) != '\0');
444 for (i = 0; surf_workstation_model_description[i].name; i++)
445 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
446 surf_workstation_model_description[i].name);
448 ".\n (use 'help' as a value to see the long description of each model)");
449 default_value = xbt_strdup("default");
450 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
451 &default_value, 1, 1,
452 &_sg_cfg_cb__workstation_model, NULL);
454 xbt_free(description);
456 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
457 "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)",
458 xbt_cfgelm_double, NULL, 1, 1,
459 _sg_cfg_cb__tcp_gamma, NULL);
460 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
462 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
463 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
464 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
465 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
467 /* The parameters of network models */
469 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
470 "Minimum gap between two overlapping sends",
471 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
472 _sg_cfg_cb__sender_gap, NULL);
474 double_default_value = 1.0; // FIXME use setdefault everywhere here!
475 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
476 "Correction factor to apply to the provided latency (default value set by network model)",
477 xbt_cfgelm_double, &double_default_value, 1, 1,
478 _sg_cfg_cb__latency_factor, NULL);
479 double_default_value = 1.0;
480 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
481 "Correction factor to apply to the provided bandwidth (default value set by network model)",
482 xbt_cfgelm_double, &double_default_value, 1, 1,
483 _sg_cfg_cb__bandwidth_factor, NULL);
485 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
486 "Correction factor to apply to the weight of competing streams(default value set by network model)",
487 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
488 _sg_cfg_cb__weight_S, NULL);
491 xbt_cfg_register(&_sg_cfg_set, "path",
492 "Lookup path for inclusions in platform and deployment XML files",
493 xbt_cfgelm_string, NULL, 0, 0,
494 _sg_cfg_cb__surf_path, NULL);
496 default_value_int = 0;
497 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
498 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
499 xbt_cfgelm_int, &default_value_int, 0, 1,
501 default_value_int = 0;
502 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
503 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
504 xbt_cfgelm_int, &default_value_int, 0, 1,
508 /* do model-checking */
509 xbt_cfg_register(&_sg_cfg_set, "model-check",
510 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
511 xbt_cfgelm_int, NULL, 0, 1,
512 _sg_cfg_cb_model_check, NULL);
513 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check", 0);
515 /* do stateful model-checking */
516 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
517 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
518 "If value=1, one checkpoint is saved for each step => faster verification, but huge memory consumption; higher values are good compromises between speed and memory consumption.",
519 xbt_cfgelm_int, NULL, 0, 1,
520 _mc_cfg_cb_checkpoint, NULL);
521 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
523 /* do liveness model-checking */
524 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
525 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
526 xbt_cfgelm_string, NULL, 0, 1,
527 _mc_cfg_cb_property, NULL);
528 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
530 /* Specify the kind of model-checking reduction */
531 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
532 "Specify the kind of exploration reduction (either none or DPOR)",
533 xbt_cfgelm_string, NULL, 0, 1,
534 _mc_cfg_cb_reduce, NULL);
535 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
537 /* Enable/disable timeout for wait requests with model-checking */
538 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
539 "Enable/Disable timeout for wait requests",
540 xbt_cfgelm_int, NULL, 0, 1,
541 _mc_cfg_cb_timeout, NULL);
542 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/timeout", 0);
544 /* Set max depth exploration */
545 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
546 "Specify the max depth of exploration (default : 1000)",
547 xbt_cfgelm_int, NULL, 0, 1,
548 _mc_cfg_cb_max_depth, NULL);
549 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
551 /* Set number of visited state stored for state comparison reduction*/
552 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
553 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
554 xbt_cfgelm_int, NULL, 0, 1,
555 _mc_cfg_cb_visited, NULL);
556 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
559 /* do verbose-exit */
560 default_value_int = 1;
561 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
562 "Activate the \"do nothing\" mode in Ctrl-C",
563 xbt_cfgelm_int, &default_value_int, 0, 1,
564 _sg_cfg_cb_verbose_exit, NULL);
567 /* context factory */
568 default_value = xbt_strdup("ucontext");
569 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
570 "Context factory to use in SIMIX (ucontext, thread or raw)",
571 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
573 /* stack size of contexts in Ko */
574 default_value_int = 128;
575 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
576 "Stack size of contexts in Kib (ucontext or raw only)",
577 xbt_cfgelm_int, &default_value_int, 1, 1,
578 _sg_cfg_cb_context_stack_size, NULL);
580 /* number of parallel threads for user processes */
581 default_value_int = 1;
582 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
583 "Number of parallel threads used to execute user contexts",
584 xbt_cfgelm_int, &default_value_int, 1, 1,
585 _sg_cfg_cb_contexts_nthreads, NULL);
587 /* minimal number of user contexts to be run in parallel */
588 default_value_int = 2;
589 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
590 "Minimal number of user contexts to be run in parallel (raw contexts only)",
591 xbt_cfgelm_int, &default_value_int, 1, 1,
592 _sg_cfg_cb_contexts_parallel_threshold, NULL);
594 /* synchronization mode for parallel user contexts */
596 default_value = xbt_strdup("futex");
597 #else //No futex on mac and posix is unimplememted yet
598 default_value = xbt_strdup("busy_wait");
600 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
601 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
602 xbt_cfgelm_string, &default_value, 1, 1,
603 _sg_cfg_cb_contexts_parallel_mode, NULL);
605 /* number of parallel threads for Surf */
606 default_value_int = surf_get_nthreads();
607 xbt_cfg_register(&_sg_cfg_set, "surf/nthreads",
608 "Number of parallel threads used to update Surf models",
609 xbt_cfgelm_int, &default_value_int, 1, 1,
610 _sg_cfg_cb_surf_nthreads, NULL);
612 default_value = xbt_strdup("no");
613 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
614 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
615 xbt_cfgelm_string, &default_value, 1, 1,
616 _sg_cfg_cb__surf_network_coordinates, NULL);
617 xbt_cfg_setdefault_string(_sg_cfg_set, "network/coordinates", default_value);
619 default_value_int = 0;
620 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
621 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
622 xbt_cfgelm_int, &default_value_int, 0, 1,
623 _sg_cfg_cb__surf_network_crosstraffic, NULL);
624 xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", default_value_int);
627 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
628 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
629 xbt_cfgelm_double, NULL, 1, 1,
630 _sg_cfg_cb__gtnets_jitter, NULL);
631 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
633 default_value_int = 10;
634 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
635 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
636 xbt_cfgelm_int, &default_value_int, 0, 1,
637 _sg_cfg_cb__gtnets_jitter_seed, NULL);
640 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
641 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
642 xbt_cfgelm_string, NULL, 1, 1,
644 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
648 double default_reference_speed = 20000.0;
649 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
650 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
651 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
654 int default_display_timing = 0;
655 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
656 "Boolean indicating whether we should display the timing after simulation.",
657 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
660 double default_threshold = 1e-6;
661 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
662 "Minimal computation time (in seconds) not discarded.",
663 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
666 int default_small_messages_threshold = 0;
667 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
668 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
669 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
672 //For smpi/bw_factor and smpi/lat_factor
673 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
674 //test is if( size >= thresholdN ) return valueN;
675 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
676 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
677 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
678 "Bandwidth factors for smpi.",
679 xbt_cfgelm_string, NULL, 1, 1, NULL,
681 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");
683 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
684 "Latency factors for smpi.",
685 xbt_cfgelm_string, NULL, 1, 1, NULL,
687 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");
692 /* retrieves the current directory of the current process */
693 const char *initial_path = __surf_get_initial_path();
694 xbt_assert((initial_path),
695 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
697 surf_path = xbt_dynar_new(sizeof(char *), NULL);
698 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
703 sg_config_cmd_line(argc, argv);
705 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
708 XBT_WARN("Call to sg_config_init() after initialization ignored");
712 void sg_config_finalize(void)
714 if (!_sg_init_status)
715 return; /* Not initialized yet. Nothing to do */
717 xbt_cfg_free(&_sg_cfg_set);
721 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
722 void surf_config_models_setup()
724 char *workstation_model_name;
725 int workstation_id = -1;
726 char *network_model_name = NULL;
727 char *cpu_model_name = NULL;
729 char *storage_model_name = NULL;
731 workstation_model_name =
732 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
733 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
734 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
735 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
737 /* Check whether we use a net/cpu model differing from the default ones, in which case
738 * we should switch to the "compound" workstation model to correctly dispatch stuff to
739 * the right net/cpu models.
742 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
743 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
744 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
746 const char *val = "compound";
748 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
749 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
750 workstation_model_name = (char *) "compound";
753 XBT_DEBUG("Workstation model: %s", workstation_model_name);
755 find_model_description(surf_workstation_model_description,
756 workstation_model_name);
757 if (!strcmp(workstation_model_name, "compound")) {
761 xbt_assert(cpu_model_name,
762 "Set a cpu model to use with the 'compound' workstation model");
764 xbt_assert(network_model_name,
765 "Set a network model to use with the 'compound' workstation model");
768 find_model_description(surf_network_model_description,
771 find_model_description(surf_cpu_model_description, cpu_model_name);
773 surf_cpu_model_description[cpu_id].model_init_preparse();
774 surf_network_model_description[network_id].model_init_preparse();
777 XBT_DEBUG("Call workstation_model_init");
778 surf_workstation_model_description[workstation_id].model_init_preparse();
780 XBT_DEBUG("Call storage_model_init");
781 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
782 surf_storage_model_description[storage_id].model_init_preparse();
784 /* ********************************************************************* */
785 /* TUTORIAL: New model */
786 int new_model_id = -1;
787 char *new_model_name = NULL;
788 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
789 XBT_DEBUG("Call new model_init");
790 new_model_id = find_model_description(surf_new_model_description, new_model_name);
791 surf_new_model_description[new_model_id].model_init_preparse();
792 /* ********************************************************************* */
795 int sg_cfg_get_int(const char* name)
797 return xbt_cfg_get_int(_sg_cfg_set,name);
799 double sg_cfg_get_double(const char* name)
801 return xbt_cfg_get_double(_sg_cfg_set,name);
803 char* sg_cfg_get_string(const char* name)
805 return xbt_cfg_get_string(_sg_cfg_set,name);
807 void sg_cfg_get_peer(const char *name, char **peer, int *port)
809 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
811 xbt_dynar_t sg_cfg_get_dynar(const char* name)
813 return xbt_cfg_get_dynar(_sg_cfg_set,name);