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"
24 #include "surf/vm_workstation_private.h"
26 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
27 "About the configuration of simgrid");
29 xbt_cfg_t _sg_cfg_set = NULL;
31 int _sg_init_status = 0; /* 0: beginning of time (config cannot be changed yet);
32 1: initialized: cfg_set created (config can now be changed);
33 2: configured: command line parsed and config part of platform file was integrated also, platform construction ongoing or done.
34 (Config cannot be changed anymore!) */
36 /* Parse the command line, looking for options */
37 static void sg_config_cmd_line(int *argc, char **argv)
43 for (j = i = 1; i < *argc; i++) {
44 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
45 opt = strchr(argv[i], '=');
48 xbt_cfg_set_parse(_sg_cfg_set, opt);
49 XBT_DEBUG("Did apply '%s' as config setting", opt);
50 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
52 ("Description of the configuration accepted by this simulator:\n");
53 xbt_cfg_help(_sg_cfg_set);
56 "Each of these configurations can be used by adding\n"
57 " --cfg=<option name>:<option value>\n"
58 "to the command line.\n"
59 "You can also use --help-models to see the details of all models known by this simulator.\n"
62 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
65 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
69 } else if (!strcmp(argv[i], "--help-models")) {
72 model_help("workstation", surf_workstation_model_description);
74 model_help("CPU", surf_cpu_model_description);
76 model_help("network", surf_network_model_description);
77 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
78 for (k = 0; surf_optimization_mode_description[k].name; k++)
80 surf_optimization_mode_description[k].name,
81 surf_optimization_mode_description[k].description);
82 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
85 } else if (!strcmp(argv[i], "--help-tracing")) {
98 _sg_init_status=1; // get everything cleanly cleaned on exit
103 /* callback of the workstation/model variable */
104 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
108 xbt_assert(_sg_init_status == 1,
109 "Cannot change the model after the initialization");
111 val = xbt_cfg_get_string(_sg_cfg_set, name);
113 if (!strcmp(val, "help")) {
114 model_help("workstation", surf_workstation_model_description);
118 /* Make sure that the model exists */
119 find_model_description(surf_workstation_model_description, val);
122 /* callback of the cpu/model variable */
123 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
127 xbt_assert(_sg_init_status == 1,
128 "Cannot change the model after the initialization");
130 val = xbt_cfg_get_string(_sg_cfg_set, name);
132 if (!strcmp(val, "help")) {
133 model_help("CPU", surf_cpu_model_description);
137 /* New Module missing */
138 find_model_description(surf_cpu_model_description, val);
141 /* callback of the cpu/model variable */
142 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
146 xbt_assert(_sg_init_status == 1,
147 "Cannot change the model after the initialization");
149 val = xbt_cfg_get_string(_sg_cfg_set, name);
151 if (!strcmp(val, "help")) {
152 model_help("optimization", surf_optimization_mode_description);
156 /* New Module missing */
157 find_model_description(surf_optimization_mode_description, val);
160 /* callback of the cpu/model variable */
161 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
165 xbt_assert(_sg_init_status == 1,
166 "Cannot change the model after the initialization");
168 val = xbt_cfg_get_string(_sg_cfg_set, name);
170 if (!strcmp(val, "help")) {
171 model_help("storage", surf_storage_model_description);
175 /* New Module missing */
176 find_model_description(surf_storage_model_description, val);
179 /* callback of the workstation_model variable */
180 static void _sg_cfg_cb__network_model(const char *name, int pos)
184 xbt_assert(_sg_init_status == 1,
185 "Cannot change the model after the initialization");
187 val = xbt_cfg_get_string(_sg_cfg_set, name);
189 if (!strcmp(val, "help")) {
190 model_help("network", surf_network_model_description);
194 /* New Module missing */
195 find_model_description(surf_network_model_description, val);
199 /* callbacks of the network models values */
200 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
202 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
205 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
207 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
210 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
212 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
215 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
217 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
220 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
222 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
225 static void _sg_cfg_cb__weight_S(const char *name, int pos)
227 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
231 /* callback of the mpi collectives */
232 static void _sg_cfg_cb__coll(const char *category,
233 s_mpi_coll_description_t * table,
234 const char *name, int pos)
238 xbt_assert(_sg_init_status == 1,
239 "Cannot change the model after the initialization");
241 val = xbt_cfg_get_string(_sg_cfg_set, name);
243 if (!strcmp(val, "help")) {
244 coll_help(category, table);
248 /* New Module missing */
249 find_coll_description(table, val);
251 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
252 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
254 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
256 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
258 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
260 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
262 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
264 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
266 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
268 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
272 /* callback of the inclusion path */
273 static void _sg_cfg_cb__surf_path(const char *name, int pos)
275 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
276 xbt_dynar_push(surf_path, &path);
279 /* callback to decide if we want to use the model-checking */
280 #include "xbt_modinter.h"
282 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
285 static void _sg_cfg_cb_model_check(const char *name, int pos)
288 _sg_do_model_check = xbt_cfg_get_int(_sg_cfg_set, name);
290 if (xbt_cfg_get_int(_sg_cfg_set, name)) {
291 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");
296 extern int _sg_do_verbose_exit;
298 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
300 _sg_do_verbose_exit = xbt_cfg_get_int(_sg_cfg_set, name);
304 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
305 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
308 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
310 smx_context_stack_size_was_set = 1;
311 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
314 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
316 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
319 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
321 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
324 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
326 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
327 if (!strcmp(mode_name, "posix")) {
328 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
330 else if (!strcmp(mode_name, "futex")) {
331 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
333 else if (!strcmp(mode_name, "busy_wait")) {
334 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
337 xbt_die("Command line setting of the parallel synchronization mode should "
338 "be one of \"posix\", \"futex\" or \"busy_wait\"");
342 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
345 char *val = xbt_cfg_get_string(_sg_cfg_set, name);
346 if (!strcmp(val, "yes")) {
347 if (!COORD_HOST_LEVEL) {
348 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
349 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
351 } else if (!strcmp(val, "no")) {
352 if (COORD_HOST_LEVEL)
353 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
355 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
359 static void _sg_cfg_cb_surf_nthreads(const char *name, int pos)
361 surf_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
364 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
367 sg_network_crosstraffic = xbt_cfg_get_int(_sg_cfg_set, name);
371 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
373 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
376 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
378 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
382 /* create the config set, register what should be and parse the command line*/
383 void sg_config_init(int *argc, char **argv)
385 char *description = xbt_malloc(1024), *p = description;
387 double double_default_value;
388 int default_value_int;
391 /* Create the configuration support */
392 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
394 "The model to use for the CPU. Possible values: ");
396 while (*(++p) != '\0');
397 for (i = 0; surf_cpu_model_description[i].name; i++)
398 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
399 surf_cpu_model_description[i].name);
401 ".\n (use 'help' as a value to see the long description of each model)");
402 default_value = xbt_strdup("Cas01");
403 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
404 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
407 "The optimization modes to use for the CPU. Possible values: ");
409 while (*(++p) != '\0');
410 for (i = 0; surf_optimization_mode_description[i].name; i++)
411 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
412 surf_optimization_mode_description[i].name);
414 ".\n (use 'help' as a value to see the long description of each optimization mode)");
415 default_value = xbt_strdup("Lazy");
416 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
417 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
420 "The model to use for the storage. Possible values: ");
422 while (*(++p) != '\0');
423 for (i = 0; surf_storage_model_description[i].name; i++)
424 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
425 surf_storage_model_description[i].name);
427 ".\n (use 'help' as a value to see the long description of each model)");
428 default_value = xbt_strdup("default");
429 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
430 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
433 /* ********************************************************************* */
434 /* TUTORIAL: New model */
436 "The model to use for the New model. Possible values: ");
438 while (*(++p) != '\0');
439 for (i = 0; surf_new_model_description[i].name; i++)
440 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
441 surf_new_model_description[i].name);
443 ".\n (use 'help' as a value to see the long description of each model)");
444 default_value = xbt_strdup("default");
445 xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
446 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
448 /* ********************************************************************* */
451 "The model to use for the network. Possible values: ");
453 while (*(++p) != '\0');
454 for (i = 0; surf_network_model_description[i].name; i++)
455 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
456 surf_network_model_description[i].name);
458 ".\n (use 'help' as a value to see the long description of each model)");
459 default_value = xbt_strdup("LV08");
460 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
461 &default_value, 1, 1, &_sg_cfg_cb__network_model,
465 "The optimization modes to use for the network. Possible values: ");
467 while (*(++p) != '\0');
468 for (i = 0; surf_optimization_mode_description[i].name; i++)
469 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
470 surf_optimization_mode_description[i].name);
472 ".\n (use 'help' as a value to see the long description of each optimization mode)");
473 default_value = xbt_strdup("Lazy");
474 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
475 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
478 "The model to use for the workstation. Possible values: ");
480 while (*(++p) != '\0');
481 for (i = 0; surf_workstation_model_description[i].name; i++)
482 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
483 surf_workstation_model_description[i].name);
485 ".\n (use 'help' as a value to see the long description of each model)");
486 default_value = xbt_strdup("default");
487 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
488 &default_value, 1, 1,
489 &_sg_cfg_cb__workstation_model, NULL);
491 xbt_free(description);
493 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
494 "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)",
495 xbt_cfgelm_double, NULL, 1, 1,
496 _sg_cfg_cb__tcp_gamma, NULL);
497 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
499 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
500 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
501 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
502 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
504 /* The parameters of network models */
506 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
507 "Minimum gap between two overlapping sends",
508 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
509 _sg_cfg_cb__sender_gap, NULL);
511 double_default_value = 1.0; // FIXME use setdefault everywhere here!
512 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
513 "Correction factor to apply to the provided latency (default value set by network model)",
514 xbt_cfgelm_double, &double_default_value, 1, 1,
515 _sg_cfg_cb__latency_factor, NULL);
516 double_default_value = 1.0;
517 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
518 "Correction factor to apply to the provided bandwidth (default value set by network model)",
519 xbt_cfgelm_double, &double_default_value, 1, 1,
520 _sg_cfg_cb__bandwidth_factor, NULL);
522 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
523 "Correction factor to apply to the weight of competing streams (default value set by network model)",
524 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
525 _sg_cfg_cb__weight_S, NULL);
528 xbt_cfg_register(&_sg_cfg_set, "path",
529 "Lookup path for inclusions in platform and deployment XML files",
530 xbt_cfgelm_string, NULL, 0, 0,
531 _sg_cfg_cb__surf_path, NULL);
533 default_value_int = 0;
534 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
535 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
536 xbt_cfgelm_int, &default_value_int, 0, 1,
538 default_value_int = 0;
539 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
540 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
541 xbt_cfgelm_int, &default_value_int, 0, 1,
545 /* do model-checking */
546 xbt_cfg_register(&_sg_cfg_set, "model-check",
547 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
548 xbt_cfgelm_int, NULL, 0, 1,
549 _sg_cfg_cb_model_check, NULL);
550 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check", 0);
552 /* do stateful model-checking */
553 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
554 "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
555 "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.",
556 xbt_cfgelm_int, NULL, 0, 1,
557 _mc_cfg_cb_checkpoint, NULL);
558 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
560 /* do liveness model-checking */
561 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
562 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
563 xbt_cfgelm_string, NULL, 0, 1,
564 _mc_cfg_cb_property, NULL);
565 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
567 /* Specify the kind of model-checking reduction */
568 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
569 "Specify the kind of exploration reduction (either none or DPOR)",
570 xbt_cfgelm_string, NULL, 0, 1,
571 _mc_cfg_cb_reduce, NULL);
572 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
574 /* Enable/disable timeout for wait requests with model-checking */
575 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
576 "Enable/Disable timeout for wait requests",
577 xbt_cfgelm_int, NULL, 0, 1,
578 _mc_cfg_cb_timeout, NULL);
579 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/timeout", 0);
581 /* Set max depth exploration */
582 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
583 "Specify the max depth of exploration (default : 1000)",
584 xbt_cfgelm_int, NULL, 0, 1,
585 _mc_cfg_cb_max_depth, NULL);
586 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
588 /* Set number of visited state stored for state comparison reduction*/
589 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
590 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
591 xbt_cfgelm_int, NULL, 0, 1,
592 _mc_cfg_cb_visited, NULL);
593 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
595 /* Set file name for dot output of graph state */
596 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
597 "Specify the name of dot file corresponding to graph state",
598 xbt_cfgelm_string, NULL, 0, 1,
599 _mc_cfg_cb_dot_output, NULL);
600 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
603 /* do verbose-exit */
604 default_value_int = 1;
605 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
606 "Activate the \"do nothing\" mode in Ctrl-C",
607 xbt_cfgelm_int, &default_value_int, 0, 1,
608 _sg_cfg_cb_verbose_exit, NULL);
611 /* context factory */
612 default_value = xbt_strdup("ucontext");
613 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
614 "Context factory to use in SIMIX (ucontext, thread or raw)",
615 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
617 /* stack size of contexts in Ko */
618 default_value_int = 128;
619 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
620 "Stack size of contexts in Kib (ucontext or raw only)",
621 xbt_cfgelm_int, &default_value_int, 1, 1,
622 _sg_cfg_cb_context_stack_size, NULL);
624 /* number of parallel threads for user processes */
625 default_value_int = 1;
626 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
627 "Number of parallel threads used to execute user contexts",
628 xbt_cfgelm_int, &default_value_int, 1, 1,
629 _sg_cfg_cb_contexts_nthreads, NULL);
631 /* minimal number of user contexts to be run in parallel */
632 default_value_int = 2;
633 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
634 "Minimal number of user contexts to be run in parallel (raw contexts only)",
635 xbt_cfgelm_int, &default_value_int, 1, 1,
636 _sg_cfg_cb_contexts_parallel_threshold, NULL);
638 /* synchronization mode for parallel user contexts */
640 default_value = xbt_strdup("futex");
641 #else //No futex on mac and posix is unimplememted yet
642 default_value = xbt_strdup("busy_wait");
644 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
645 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
646 xbt_cfgelm_string, &default_value, 1, 1,
647 _sg_cfg_cb_contexts_parallel_mode, NULL);
649 /* number of parallel threads for Surf */
650 default_value_int = surf_get_nthreads();
651 xbt_cfg_register(&_sg_cfg_set, "surf/nthreads",
652 "Number of parallel threads used to update Surf models",
653 xbt_cfgelm_int, &default_value_int, 1, 1,
654 _sg_cfg_cb_surf_nthreads, NULL);
656 default_value = xbt_strdup("no");
657 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
658 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
659 xbt_cfgelm_string, &default_value, 1, 1,
660 _sg_cfg_cb__surf_network_coordinates, NULL);
661 xbt_cfg_setdefault_string(_sg_cfg_set, "network/coordinates", default_value);
663 default_value_int = 0;
664 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
665 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
666 xbt_cfgelm_int, &default_value_int, 0, 1,
667 _sg_cfg_cb__surf_network_crosstraffic, NULL);
668 xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", default_value_int);
671 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
672 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
673 xbt_cfgelm_double, NULL, 1, 1,
674 _sg_cfg_cb__gtnets_jitter, NULL);
675 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
677 default_value_int = 10;
678 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
679 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
680 xbt_cfgelm_int, &default_value_int, 0, 1,
681 _sg_cfg_cb__gtnets_jitter_seed, NULL);
684 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
685 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
686 xbt_cfgelm_string, NULL, 1, 1,
688 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
692 double default_reference_speed = 20000.0;
693 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
694 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
695 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
698 int default_display_timing = 0;
699 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
700 "Boolean indicating whether we should display the timing after simulation.",
701 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
704 double default_threshold = 1e-6;
705 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
706 "Minimal computation time (in seconds) not discarded.",
707 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
710 int default_small_messages_threshold = 0;
711 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
712 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
713 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
716 int default_send_is_detached_threshold = 65536;
717 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
718 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
719 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
722 //For smpi/bw_factor and smpi/lat_factor
723 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
724 //test is if( size >= thresholdN ) return valueN;
725 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
726 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
727 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
728 "Bandwidth factors for smpi.",
729 xbt_cfgelm_string, NULL, 1, 1, NULL,
731 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");
733 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
734 "Latency factors for smpi.",
735 xbt_cfgelm_string, NULL, 1, 1, NULL,
737 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");
739 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
740 "Small messages timings (MPI_Send minimum time for small messages)",
741 xbt_cfgelm_string, NULL, 1, 1, NULL,
743 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
745 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
746 "Small messages timings (MPI_Isend minimum time for small messages)",
747 xbt_cfgelm_string, NULL, 1, 1, NULL,
749 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
751 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
752 "Small messages timings (MPI_Recv minimum time for small messages)",
753 xbt_cfgelm_string, NULL, 1, 1, NULL,
755 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
757 default_value = xbt_strdup("default");
758 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
759 "Which collective to use for allgather",
760 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allgather,
763 default_value = xbt_strdup("default");
764 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
765 "Which collective to use for allreduce",
766 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allreduce,
769 default_value = xbt_strdup("ompi");
770 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
771 "Which collective to use for alltoall",
772 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_alltoall,
776 default_value = xbt_strdup("default");
777 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
778 "Which collective to use for bcast",
779 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_bcast,
783 default_value = xbt_strdup("default");
784 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
785 "Which collective to use for reduce",
786 xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_reduce,
791 /* retrieves the current directory of the current process */
792 const char *initial_path = __surf_get_initial_path();
793 xbt_assert((initial_path),
794 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
796 surf_path = xbt_dynar_new(sizeof(char *), NULL);
797 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
802 sg_config_cmd_line(argc, argv);
804 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
807 XBT_WARN("Call to sg_config_init() after initialization ignored");
811 void sg_config_finalize(void)
813 if (!_sg_init_status)
814 return; /* Not initialized yet. Nothing to do */
816 xbt_cfg_free(&_sg_cfg_set);
820 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
821 void surf_config_models_setup()
823 char *workstation_model_name;
824 int workstation_id = -1;
825 char *network_model_name = NULL;
826 char *cpu_model_name = NULL;
828 char *storage_model_name = NULL;
830 workstation_model_name =
831 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
832 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
833 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
834 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
836 /* Check whether we use a net/cpu model differing from the default ones, in which case
837 * we should switch to the "compound" workstation model to correctly dispatch stuff to
838 * the right net/cpu models.
841 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
842 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
843 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
845 const char *val = "compound";
847 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
848 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
849 workstation_model_name = (char *) "compound";
852 XBT_DEBUG("Workstation model: %s", workstation_model_name);
854 find_model_description(surf_workstation_model_description,
855 workstation_model_name);
856 if (!strcmp(workstation_model_name, "compound")) {
860 xbt_assert(cpu_model_name,
861 "Set a cpu model to use with the 'compound' workstation model");
863 xbt_assert(network_model_name,
864 "Set a network model to use with the 'compound' workstation model");
867 find_model_description(surf_network_model_description,
870 find_model_description(surf_cpu_model_description, cpu_model_name);
872 surf_cpu_model_description[cpu_id].model_init_preparse();
873 surf_network_model_description[network_id].model_init_preparse();
876 XBT_DEBUG("Call workstation_model_init");
877 surf_workstation_model_description[workstation_id].model_init_preparse();
879 XBT_DEBUG("Call vm_workstation_model_init");
880 surf_vm_workstation_model_init();
882 XBT_DEBUG("Call storage_model_init");
883 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
884 surf_storage_model_description[storage_id].model_init_preparse();
886 /* ********************************************************************* */
887 /* TUTORIAL: New model */
888 int new_model_id = -1;
889 char *new_model_name = NULL;
890 new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
891 XBT_DEBUG("Call new model_init");
892 new_model_id = find_model_description(surf_new_model_description, new_model_name);
893 surf_new_model_description[new_model_id].model_init_preparse();
894 /* ********************************************************************* */
897 int sg_cfg_get_int(const char* name)
899 return xbt_cfg_get_int(_sg_cfg_set,name);
901 double sg_cfg_get_double(const char* name)
903 return xbt_cfg_get_double(_sg_cfg_set,name);
905 char* sg_cfg_get_string(const char* name)
907 return xbt_cfg_get_string(_sg_cfg_set,name);
909 void sg_cfg_get_peer(const char *name, char **peer, int *port)
911 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
913 xbt_dynar_t sg_cfg_get_dynar(const char* name)
915 return xbt_cfg_get_dynar(_sg_cfg_set,name);