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 mpi collectives */
230 static void _sg_cfg_cb__coll(char *category,
231 s_mpi_coll_description_t * table,
232 const char *name, int pos)
236 xbt_assert(_sg_init_status == 1,
237 "Cannot change the model after the initialization");
239 val = xbt_cfg_get_string(_sg_cfg_set, name);
241 if (!strcmp(val, "help")) {
242 coll_help(category, table);
246 /* New Module missing */
247 find_coll_description(table, val);
249 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
251 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_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);
258 /* callback of the inclusion path */
259 static void _sg_cfg_cb__surf_path(const char *name, int pos)
261 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
262 xbt_dynar_push(surf_path, &path);
265 /* callback to decide if we want to use the model-checking */
266 #include "xbt_modinter.h"
268 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
271 static void _sg_cfg_cb_model_check(const char *name, int pos)
274 _sg_do_model_check = xbt_cfg_get_int(_sg_cfg_set, name);
276 if (xbt_cfg_get_int(_sg_cfg_set, name)) {
277 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");
282 extern int _sg_do_verbose_exit;
284 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
286 _sg_do_verbose_exit = xbt_cfg_get_int(_sg_cfg_set, name);
290 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
291 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
294 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
296 smx_context_stack_size_was_set = 1;
297 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
300 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
302 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
305 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
307 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
310 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
312 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
313 if (!strcmp(mode_name, "posix")) {
314 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
316 else if (!strcmp(mode_name, "futex")) {
317 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
319 else if (!strcmp(mode_name, "busy_wait")) {
320 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
323 xbt_die("Command line setting of the parallel synchronization mode should "
324 "be one of \"posix\", \"futex\" or \"busy_wait\"");
328 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
331 char *val = xbt_cfg_get_string(_sg_cfg_set, name);
332 if (!strcmp(val, "yes")) {
333 if (!COORD_HOST_LEVEL) {
334 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
335 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
337 } else if (!strcmp(val, "no")) {
338 if (COORD_HOST_LEVEL)
339 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
341 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
345 static void _sg_cfg_cb_surf_nthreads(const char *name, int pos)
347 surf_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
350 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
353 sg_network_crosstraffic = xbt_cfg_get_int(_sg_cfg_set, name);
357 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
359 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
362 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
364 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
368 /* create the config set, register what should be and parse the command line*/
369 void sg_config_init(int *argc, char **argv)
371 char *description = xbt_malloc(1024), *p = description;
373 double double_default_value;
374 int default_value_int;
377 /* Create the configuration support */
378 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
380 "The model to use for the CPU. Possible values: ");
382 while (*(++p) != '\0');
383 for (i = 0; surf_cpu_model_description[i].name; i++)
384 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
385 surf_cpu_model_description[i].name);
387 ".\n (use 'help' as a value to see the long description of each model)");
388 default_value = xbt_strdup("Cas01");
389 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
390 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
393 "The optimization modes to use for the CPU. Possible values: ");
395 while (*(++p) != '\0');
396 for (i = 0; surf_optimization_mode_description[i].name; i++)
397 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
398 surf_optimization_mode_description[i].name);
400 ".\n (use 'help' as a value to see the long description of each optimization mode)");
401 default_value = xbt_strdup("Lazy");
402 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
403 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
406 "The model to use for the storage. Possible values: ");
408 while (*(++p) != '\0');
409 for (i = 0; surf_storage_model_description[i].name; i++)
410 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
411 surf_storage_model_description[i].name);
413 ".\n (use 'help' as a value to see the long description of each model)");
414 default_value = xbt_strdup("default");
415 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
416 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
419 /* ********************************************************************* */
420 /* TUTORIAL: New model */
422 "The model to use for the New model. Possible values: ");
424 while (*(++p) != '\0');
425 for (i = 0; surf_new_model_description[i].name; i++)
426 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
427 surf_new_model_description[i].name);
429 ".\n (use 'help' as a value to see the long description of each model)");
430 default_value = xbt_strdup("default");
431 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
432 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
434 /* ********************************************************************* */
437 "The model to use for the network. Possible values: ");
439 while (*(++p) != '\0');
440 for (i = 0; surf_network_model_description[i].name; i++)
441 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
442 surf_network_model_description[i].name);
444 ".\n (use 'help' as a value to see the long description of each model)");
445 default_value = xbt_strdup("LV08");
446 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
447 &default_value, 1, 1, &_sg_cfg_cb__network_model,
451 "The optimization modes to use for the network. Possible values: ");
453 while (*(++p) != '\0');
454 for (i = 0; surf_optimization_mode_description[i].name; i++)
455 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
456 surf_optimization_mode_description[i].name);
458 ".\n (use 'help' as a value to see the long description of each optimization mode)");
459 default_value = xbt_strdup("Lazy");
460 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
461 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
464 "The model to use for the workstation. Possible values: ");
466 while (*(++p) != '\0');
467 for (i = 0; surf_workstation_model_description[i].name; i++)
468 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
469 surf_workstation_model_description[i].name);
471 ".\n (use 'help' as a value to see the long description of each model)");
472 default_value = xbt_strdup("default");
473 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
474 &default_value, 1, 1,
475 &_sg_cfg_cb__workstation_model, NULL);
477 xbt_free(description);
479 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
480 "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)",
481 xbt_cfgelm_double, NULL, 1, 1,
482 _sg_cfg_cb__tcp_gamma, NULL);
483 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
485 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
486 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
487 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
488 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
490 /* The parameters of network models */
492 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
493 "Minimum gap between two overlapping sends",
494 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
495 _sg_cfg_cb__sender_gap, NULL);
497 double_default_value = 1.0; // FIXME use setdefault everywhere here!
498 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
499 "Correction factor to apply to the provided latency (default value set by network model)",
500 xbt_cfgelm_double, &double_default_value, 1, 1,
501 _sg_cfg_cb__latency_factor, NULL);
502 double_default_value = 1.0;
503 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
504 "Correction factor to apply to the provided bandwidth (default value set by network model)",
505 xbt_cfgelm_double, &double_default_value, 1, 1,
506 _sg_cfg_cb__bandwidth_factor, NULL);
508 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
509 "Correction factor to apply to the weight of competing streams (default value set by network model)",
510 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
511 _sg_cfg_cb__weight_S, NULL);
514 xbt_cfg_register(&_sg_cfg_set, "path",
515 "Lookup path for inclusions in platform and deployment XML files",
516 xbt_cfgelm_string, NULL, 0, 0,
517 _sg_cfg_cb__surf_path, NULL);
519 default_value_int = 0;
520 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
521 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
522 xbt_cfgelm_int, &default_value_int, 0, 1,
524 default_value_int = 0;
525 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
526 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
527 xbt_cfgelm_int, &default_value_int, 0, 1,
531 /* do model-checking */
532 xbt_cfg_register(&_sg_cfg_set, "model-check",
533 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
534 xbt_cfgelm_int, NULL, 0, 1,
535 _sg_cfg_cb_model_check, NULL);
536 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check", 0);
538 /* do stateful model-checking */
539 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
540 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
541 "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.",
542 xbt_cfgelm_int, NULL, 0, 1,
543 _mc_cfg_cb_checkpoint, NULL);
544 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
546 /* do liveness model-checking */
547 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
548 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
549 xbt_cfgelm_string, NULL, 0, 1,
550 _mc_cfg_cb_property, NULL);
551 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
553 /* Specify the kind of model-checking reduction */
554 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
555 "Specify the kind of exploration reduction (either none or DPOR)",
556 xbt_cfgelm_string, NULL, 0, 1,
557 _mc_cfg_cb_reduce, NULL);
558 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
560 /* Enable/disable timeout for wait requests with model-checking */
561 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
562 "Enable/Disable timeout for wait requests",
563 xbt_cfgelm_int, NULL, 0, 1,
564 _mc_cfg_cb_timeout, NULL);
565 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/timeout", 0);
567 /* Set max depth exploration */
568 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
569 "Specify the max depth of exploration (default : 1000)",
570 xbt_cfgelm_int, NULL, 0, 1,
571 _mc_cfg_cb_max_depth, NULL);
572 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
574 /* Set number of visited state stored for state comparison reduction*/
575 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
576 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
577 xbt_cfgelm_int, NULL, 0, 1,
578 _mc_cfg_cb_visited, NULL);
579 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
581 /* Set file name for dot output of graph state */
582 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
583 "Specify the name of dot file corresponding to graph state",
584 xbt_cfgelm_string, NULL, 0, 1,
585 _mc_cfg_cb_dot_output, NULL);
586 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
589 /* do verbose-exit */
590 default_value_int = 1;
591 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
592 "Activate the \"do nothing\" mode in Ctrl-C",
593 xbt_cfgelm_int, &default_value_int, 0, 1,
594 _sg_cfg_cb_verbose_exit, NULL);
597 /* context factory */
598 default_value = xbt_strdup("ucontext");
599 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
600 "Context factory to use in SIMIX (ucontext, thread or raw)",
601 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
603 /* stack size of contexts in Ko */
604 default_value_int = 128;
605 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
606 "Stack size of contexts in Kib (ucontext or raw only)",
607 xbt_cfgelm_int, &default_value_int, 1, 1,
608 _sg_cfg_cb_context_stack_size, NULL);
610 /* number of parallel threads for user processes */
611 default_value_int = 1;
612 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
613 "Number of parallel threads used to execute user contexts",
614 xbt_cfgelm_int, &default_value_int, 1, 1,
615 _sg_cfg_cb_contexts_nthreads, NULL);
617 /* minimal number of user contexts to be run in parallel */
618 default_value_int = 2;
619 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
620 "Minimal number of user contexts to be run in parallel (raw contexts only)",
621 xbt_cfgelm_int, &default_value_int, 1, 1,
622 _sg_cfg_cb_contexts_parallel_threshold, NULL);
624 /* synchronization mode for parallel user contexts */
626 default_value = xbt_strdup("futex");
627 #else //No futex on mac and posix is unimplememted yet
628 default_value = xbt_strdup("busy_wait");
630 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
631 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
632 xbt_cfgelm_string, &default_value, 1, 1,
633 _sg_cfg_cb_contexts_parallel_mode, NULL);
635 /* number of parallel threads for Surf */
636 default_value_int = surf_get_nthreads();
637 xbt_cfg_register(&_sg_cfg_set, "surf/nthreads",
638 "Number of parallel threads used to update Surf models",
639 xbt_cfgelm_int, &default_value_int, 1, 1,
640 _sg_cfg_cb_surf_nthreads, NULL);
642 default_value = xbt_strdup("no");
643 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
644 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
645 xbt_cfgelm_string, &default_value, 1, 1,
646 _sg_cfg_cb__surf_network_coordinates, NULL);
647 xbt_cfg_setdefault_string(_sg_cfg_set, "network/coordinates", default_value);
649 default_value_int = 0;
650 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
651 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
652 xbt_cfgelm_int, &default_value_int, 0, 1,
653 _sg_cfg_cb__surf_network_crosstraffic, NULL);
654 xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", default_value_int);
657 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
658 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
659 xbt_cfgelm_double, NULL, 1, 1,
660 _sg_cfg_cb__gtnets_jitter, NULL);
661 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
663 default_value_int = 10;
664 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
665 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
666 xbt_cfgelm_int, &default_value_int, 0, 1,
667 _sg_cfg_cb__gtnets_jitter_seed, NULL);
670 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
671 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
672 xbt_cfgelm_string, NULL, 1, 1,
674 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
678 double default_reference_speed = 20000.0;
679 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
680 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
681 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
684 int default_display_timing = 0;
685 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
686 "Boolean indicating whether we should display the timing after simulation.",
687 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
690 double default_threshold = 1e-6;
691 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
692 "Minimal computation time (in seconds) not discarded.",
693 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
696 int default_small_messages_threshold = 0;
697 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
698 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
699 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
702 int default_send_is_detached_threshold = 65536;
703 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
704 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
705 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
708 //For smpi/bw_factor and smpi/lat_factor
709 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
710 //test is if( size >= thresholdN ) return valueN;
711 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
712 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
713 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
714 "Bandwidth factors for smpi.",
715 xbt_cfgelm_string, NULL, 1, 1, NULL,
717 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");
719 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
720 "Latency factors for smpi.",
721 xbt_cfgelm_string, NULL, 1, 1, NULL,
723 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");
725 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
726 "Small messages timings (MPI_Send minimum time for small messages)",
727 xbt_cfgelm_string, NULL, 1, 1, NULL,
729 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
731 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
732 "Small messages timings (MPI_Isend minimum time for small messages)",
733 xbt_cfgelm_string, NULL, 1, 1, NULL,
735 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
737 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
738 "Small messages timings (MPI_Recv minimum time for small messages)",
739 xbt_cfgelm_string, NULL, 1, 1, NULL,
741 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
743 default_value = xbt_strdup("ompi");
744 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
745 "Which collective to use for alltoall",
746 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_alltoall,
749 default_value = xbt_strdup("default");
750 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
751 "Which collective to use for allgather",
752 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allgather,
758 /* retrieves the current directory of the current process */
759 const char *initial_path = __surf_get_initial_path();
760 xbt_assert((initial_path),
761 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
763 surf_path = xbt_dynar_new(sizeof(char *), NULL);
764 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
769 sg_config_cmd_line(argc, argv);
771 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
774 XBT_WARN("Call to sg_config_init() after initialization ignored");
778 void sg_config_finalize(void)
780 if (!_sg_init_status)
781 return; /* Not initialized yet. Nothing to do */
783 xbt_cfg_free(&_sg_cfg_set);
787 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
788 void surf_config_models_setup()
790 char *workstation_model_name;
791 int workstation_id = -1;
792 char *network_model_name = NULL;
793 char *cpu_model_name = NULL;
795 char *storage_model_name = NULL;
797 workstation_model_name =
798 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
799 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
800 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
801 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
803 /* Check whether we use a net/cpu model differing from the default ones, in which case
804 * we should switch to the "compound" workstation model to correctly dispatch stuff to
805 * the right net/cpu models.
808 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
809 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
810 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
812 const char *val = "compound";
814 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
815 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
816 workstation_model_name = (char *) "compound";
819 XBT_DEBUG("Workstation model: %s", workstation_model_name);
821 find_model_description(surf_workstation_model_description,
822 workstation_model_name);
823 if (!strcmp(workstation_model_name, "compound")) {
827 xbt_assert(cpu_model_name,
828 "Set a cpu model to use with the 'compound' workstation model");
830 xbt_assert(network_model_name,
831 "Set a network model to use with the 'compound' workstation model");
834 find_model_description(surf_network_model_description,
837 find_model_description(surf_cpu_model_description, cpu_model_name);
839 surf_cpu_model_description[cpu_id].model_init_preparse();
840 surf_network_model_description[network_id].model_init_preparse();
843 XBT_DEBUG("Call workstation_model_init");
844 surf_workstation_model_description[workstation_id].model_init_preparse();
846 XBT_DEBUG("Call storage_model_init");
847 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
848 surf_storage_model_description[storage_id].model_init_preparse();
850 /* ********************************************************************* */
851 /* TUTORIAL: New model */
852 int new_model_id = -1;
853 char *new_model_name = NULL;
854 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
855 XBT_DEBUG("Call new model_init");
856 new_model_id = find_model_description(surf_new_model_description, new_model_name);
857 surf_new_model_description[new_model_id].model_init_preparse();
858 /* ********************************************************************* */
861 int sg_cfg_get_int(const char* name)
863 return xbt_cfg_get_int(_sg_cfg_set,name);
865 double sg_cfg_get_double(const char* name)
867 return xbt_cfg_get_double(_sg_cfg_set,name);
869 char* sg_cfg_get_string(const char* name)
871 return xbt_cfg_get_string(_sg_cfg_set,name);
873 void sg_cfg_get_peer(const char *name, char **peer, int *port)
875 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
877 xbt_dynar_t sg_cfg_get_dynar(const char* name)
879 return xbt_cfg_get_dynar(_sg_cfg_set,name);