1 /* Copyright (c) 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /* sg_config: configuration infrastructure for the simulation world */
10 #include "xbt/config.h"
12 #include "xbt/mallocator.h"
15 #include "xbt/sysdep.h"
16 #include "surf/surf.h"
17 #include "surf/maxmin.h"
18 #include "instr/instr_interface.h"
19 #include "simgrid/simix.h"
20 #include "simgrid/sg_config.h"
21 #include "smpi/smpi_interface.h"
23 #include "instr/instr.h"
25 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
26 "About the configuration of simgrid");
28 xbt_cfg_t _sg_cfg_set = NULL;
30 int _sg_init_status = 0; /* 0: beginning of time (config cannot be changed yet);
31 1: initialized: cfg_set created (config can now be changed);
32 2: configured: command line parsed and config part of platform file was integrated also, platform construction ongoing or done.
33 (Config cannot be changed anymore!) */
35 /* Parse the command line, looking for options */
36 static void sg_config_cmd_line(int *argc, char **argv)
42 for (j = i = 1; i < *argc; i++) {
43 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
44 opt = strchr(argv[i], '=');
47 xbt_cfg_set_parse(_sg_cfg_set, opt);
48 XBT_DEBUG("Did apply '%s' as config setting", opt);
49 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
51 ("Description of the configuration accepted by this simulator:\n");
52 xbt_cfg_help(_sg_cfg_set);
55 "Each of these configurations can be used by adding\n"
56 " --cfg=<option name>:<option value>\n"
57 "to the command line.\n"
58 "You can also use --help-models to see the details of all models known by this simulator.\n"
61 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
64 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
68 } else if (!strcmp(argv[i], "--help-models")) {
71 model_help("workstation", surf_workstation_model_description);
73 model_help("CPU", surf_cpu_model_description);
75 model_help("network", surf_network_model_description);
76 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
77 for (k = 0; surf_optimization_mode_description[k].name; k++)
79 surf_optimization_mode_description[k].name,
80 surf_optimization_mode_description[k].description);
81 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
84 } else if (!strcmp(argv[i], "--help-tracing")) {
97 _sg_init_status=1; // get everything cleanly cleaned on exit
102 /* callback of the workstation/model variable */
103 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
107 xbt_assert(_sg_init_status == 1,
108 "Cannot change the model after the initialization");
110 val = xbt_cfg_get_string(_sg_cfg_set, name);
112 if (!strcmp(val, "help")) {
113 model_help("workstation", surf_workstation_model_description);
117 /* Make sure that the model exists */
118 find_model_description(surf_workstation_model_description, val);
121 /* callback of the cpu/model variable */
122 static void _sg_cfg_cb__cpu_model(const char *name, int pos)
126 xbt_assert(_sg_init_status == 1,
127 "Cannot change the model after the initialization");
129 val = xbt_cfg_get_string(_sg_cfg_set, name);
131 if (!strcmp(val, "help")) {
132 model_help("CPU", surf_cpu_model_description);
136 /* New Module missing */
137 find_model_description(surf_cpu_model_description, val);
140 /* callback of the cpu/model variable */
141 static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
145 xbt_assert(_sg_init_status == 1,
146 "Cannot change the model after the initialization");
148 val = xbt_cfg_get_string(_sg_cfg_set, name);
150 if (!strcmp(val, "help")) {
151 model_help("optimization", surf_optimization_mode_description);
155 /* New Module missing */
156 find_model_description(surf_optimization_mode_description, val);
159 /* callback of the cpu/model variable */
160 static void _sg_cfg_cb__storage_mode(const char *name, int pos)
164 xbt_assert(_sg_init_status == 1,
165 "Cannot change the model after the initialization");
167 val = xbt_cfg_get_string(_sg_cfg_set, name);
169 if (!strcmp(val, "help")) {
170 model_help("storage", surf_storage_model_description);
174 /* New Module missing */
175 find_model_description(surf_storage_model_description, val);
178 /* callback of the workstation_model variable */
179 static void _sg_cfg_cb__network_model(const char *name, int pos)
183 xbt_assert(_sg_init_status == 1,
184 "Cannot change the model after the initialization");
186 val = xbt_cfg_get_string(_sg_cfg_set, name);
188 if (!strcmp(val, "help")) {
189 model_help("network", surf_network_model_description);
193 /* New Module missing */
194 find_model_description(surf_network_model_description, val);
198 /* callbacks of the network models values */
199 static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
201 sg_tcp_gamma = xbt_cfg_get_double(_sg_cfg_set, name);
204 static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
206 sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
209 static void _sg_cfg_cb__sender_gap(const char* name, int pos)
211 sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
214 static void _sg_cfg_cb__latency_factor(const char *name, int pos)
216 sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
219 static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
221 sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
224 static void _sg_cfg_cb__weight_S(const char *name, int pos)
226 sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
230 /* callback of the mpi collectives */
231 static void _sg_cfg_cb__coll(const char *category,
232 s_mpi_coll_description_t * table,
233 const char *name, int pos)
237 xbt_assert(_sg_init_status == 1,
238 "Cannot change the model after the initialization");
240 val = xbt_cfg_get_string(_sg_cfg_set, name);
242 if (!strcmp(val, "help")) {
243 coll_help(category, table);
247 /* New Module missing */
248 find_coll_description(table, val);
250 static void _sg_cfg_cb__coll_gather(const char *name, int pos){
251 _sg_cfg_cb__coll("gather", mpi_coll_gather_description, name, pos);
253 static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
254 _sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
256 static void _sg_cfg_cb__coll_allgatherv(const char *name, int pos){
257 _sg_cfg_cb__coll("allgatherv", mpi_coll_allgatherv_description, name, pos);
259 static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
261 _sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
263 static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
265 _sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
267 static void _sg_cfg_cb__coll_alltoallv(const char *name, int pos)
269 _sg_cfg_cb__coll("alltoallv", mpi_coll_alltoallv_description, name, pos);
271 static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
273 _sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
275 static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
277 _sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
279 static void _sg_cfg_cb__coll_reduce_scatter(const char *name, int pos){
280 _sg_cfg_cb__coll("reduce_scatter", mpi_coll_reduce_scatter_description, name, pos);
282 static void _sg_cfg_cb__coll_scatter(const char *name, int pos){
283 _sg_cfg_cb__coll("scatter", mpi_coll_scatter_description, name, pos);
285 static void _sg_cfg_cb__coll_barrier(const char *name, int pos){
286 _sg_cfg_cb__coll("barrier", mpi_coll_barrier_description, name, pos);
290 /* callback of the inclusion path */
291 static void _sg_cfg_cb__surf_path(const char *name, int pos)
293 char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
294 xbt_dynar_push(surf_path, &path);
297 /* callback to decide if we want to use the model-checking */
298 #include "xbt_modinter.h"
300 extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
303 static void _sg_cfg_cb_model_check(const char *name, int pos)
306 _sg_do_model_check = xbt_cfg_get_boolean(_sg_cfg_set, name);
308 if (xbt_cfg_get_boolean(_sg_cfg_set, name)) {
309 xbt_die("You tried to activate the model-checking from the command line, but it was not compiled in. Change your settings in cmake, recompile and try again");
314 extern int _sg_do_verbose_exit;
316 static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
318 _sg_do_verbose_exit = xbt_cfg_get_boolean(_sg_cfg_set, name);
322 static void _sg_cfg_cb_context_factory(const char *name, int pos) {
323 smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, name);
326 static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
328 smx_context_stack_size_was_set = 1;
329 smx_context_stack_size = xbt_cfg_get_int(_sg_cfg_set, name) * 1024;
332 static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
334 SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
337 static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
339 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
342 static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
344 const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, name);
345 if (!strcmp(mode_name, "posix")) {
346 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
348 else if (!strcmp(mode_name, "futex")) {
349 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
351 else if (!strcmp(mode_name, "busy_wait")) {
352 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
355 xbt_die("Command line setting of the parallel synchronization mode should "
356 "be one of \"posix\", \"futex\" or \"busy_wait\"");
360 static void _sg_cfg_cb__surf_network_coordinates(const char *name,
363 int val = xbt_cfg_get_boolean(_sg_cfg_set, name);
365 if (!COORD_HOST_LEVEL) {
366 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
367 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
370 if (COORD_HOST_LEVEL)
371 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
374 static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
377 sg_network_crosstraffic = xbt_cfg_get_boolean(_sg_cfg_set, name);
381 static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
383 sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
386 static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
388 sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
392 /* create the config set, register what should be and parse the command line*/
393 void sg_config_init(int *argc, char **argv)
395 char *description = xbt_malloc(1024), *p = description;
397 double double_default_value;
398 int default_value_int;
401 /* Create the configuration support */
402 if (_sg_init_status == 0) { /* Only create stuff if not already inited */
404 "The model to use for the CPU. Possible values: ");
406 while (*(++p) != '\0');
407 for (i = 0; surf_cpu_model_description[i].name; i++)
408 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
409 surf_cpu_model_description[i].name);
411 ".\n (use 'help' as a value to see the long description of each model)");
412 default_value = xbt_strdup("Cas01");
413 xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
414 &default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
417 "The optimization modes to use for the CPU. Possible values: ");
419 while (*(++p) != '\0');
420 for (i = 0; surf_optimization_mode_description[i].name; i++)
421 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
422 surf_optimization_mode_description[i].name);
424 ".\n (use 'help' as a value to see the long description of each optimization mode)");
425 default_value = xbt_strdup("Lazy");
426 xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
427 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
430 "The model to use for the storage. Possible values: ");
432 while (*(++p) != '\0');
433 for (i = 0; surf_storage_model_description[i].name; i++)
434 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
435 surf_storage_model_description[i].name);
437 ".\n (use 'help' as a value to see the long description of each model)");
438 default_value = xbt_strdup("default");
439 xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
440 &default_value, 1, 1, &_sg_cfg_cb__storage_mode,
444 "The model to use for the network. Possible values: ");
446 while (*(++p) != '\0');
447 for (i = 0; surf_network_model_description[i].name; i++)
448 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
449 surf_network_model_description[i].name);
451 ".\n (use 'help' as a value to see the long description of each model)");
452 default_value = xbt_strdup("LV08");
453 xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
454 &default_value, 1, 1, &_sg_cfg_cb__network_model,
458 "The optimization modes to use for the network. Possible values: ");
460 while (*(++p) != '\0');
461 for (i = 0; surf_optimization_mode_description[i].name; i++)
462 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
463 surf_optimization_mode_description[i].name);
465 ".\n (use 'help' as a value to see the long description of each optimization mode)");
466 default_value = xbt_strdup("Lazy");
467 xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
468 &default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
471 "The model to use for the workstation. Possible values: ");
473 while (*(++p) != '\0');
474 for (i = 0; surf_workstation_model_description[i].name; i++)
475 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
476 surf_workstation_model_description[i].name);
478 ".\n (use 'help' as a value to see the long description of each model)");
479 default_value = xbt_strdup("default");
480 xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
481 &default_value, 1, 1,
482 &_sg_cfg_cb__workstation_model, NULL);
484 xbt_free(description);
486 xbt_cfg_register(&_sg_cfg_set, "network/TCP_gamma",
487 "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)",
488 xbt_cfgelm_double, NULL, 1, 1,
489 _sg_cfg_cb__tcp_gamma, NULL);
490 xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
492 xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
493 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
494 xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
495 xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
497 /* The parameters of network models */
499 xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
500 "Minimum gap between two overlapping sends",
501 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
502 _sg_cfg_cb__sender_gap, NULL);
504 double_default_value = 1.0; // FIXME use setdefault everywhere here!
505 xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
506 "Correction factor to apply to the provided latency (default value set by network model)",
507 xbt_cfgelm_double, &double_default_value, 1, 1,
508 _sg_cfg_cb__latency_factor, NULL);
509 double_default_value = 1.0;
510 xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
511 "Correction factor to apply to the provided bandwidth (default value set by network model)",
512 xbt_cfgelm_double, &double_default_value, 1, 1,
513 _sg_cfg_cb__bandwidth_factor, NULL);
515 xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
516 "Correction factor to apply to the weight of competing streams (default value set by network model)",
517 xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
518 _sg_cfg_cb__weight_S, NULL);
521 xbt_cfg_register(&_sg_cfg_set, "path",
522 "Lookup path for inclusions in platform and deployment XML files",
523 xbt_cfgelm_string, NULL, 0, 0,
524 _sg_cfg_cb__surf_path, NULL);
526 default_value = xbt_strdup("off");
527 xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
528 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
529 xbt_cfgelm_boolean, &default_value, 0, 1,
531 default_value = xbt_strdup("off");
532 xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
533 "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
534 xbt_cfgelm_boolean, &default_value, 0, 1,
538 /* do model-checking */
539 default_value = xbt_strdup("off");
540 xbt_cfg_register(&_sg_cfg_set, "model-check",
541 "Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
542 xbt_cfgelm_boolean, NULL, 0, 1,
543 _sg_cfg_cb_model_check, NULL);
544 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check", default_value);
546 /* do stateful model-checking */
547 default_value = xbt_strdup("off");
548 xbt_cfg_register(&_sg_cfg_set, "model-check/checkpoint",
549 "Specify the amount of steps between checkpoints during stateful model-checking (default: off => stateless verification). "
550 "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.",
551 xbt_cfgelm_boolean, NULL, 0, 1,
552 _mc_cfg_cb_checkpoint, NULL);
553 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/checkpoint", default_value);
555 /* do liveness model-checking */
556 xbt_cfg_register(&_sg_cfg_set, "model-check/property",
557 "Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
558 xbt_cfgelm_string, NULL, 0, 1,
559 _mc_cfg_cb_property, NULL);
560 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
562 /* Specify the kind of model-checking reduction */
563 xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
564 "Specify the kind of exploration reduction (either none or DPOR)",
565 xbt_cfgelm_string, NULL, 0, 1,
566 _mc_cfg_cb_reduce, NULL);
567 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
569 /* Enable/disable timeout for wait requests with model-checking */
570 default_value = xbt_strdup("off");
571 xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
572 "Enable/Disable timeout for wait requests",
573 xbt_cfgelm_boolean, NULL, 0, 1,
574 _mc_cfg_cb_timeout, NULL);
575 xbt_cfg_setdefault_boolean(_sg_cfg_set, "model-check/timeout", default_value);
577 /* Set max depth exploration */
578 xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
579 "Specify the max depth of exploration (default : 1000)",
580 xbt_cfgelm_int, NULL, 0, 1,
581 _mc_cfg_cb_max_depth, NULL);
582 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
584 /* Set number of visited state stored for state comparison reduction*/
585 xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
586 "Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
587 xbt_cfgelm_int, NULL, 0, 1,
588 _mc_cfg_cb_visited, NULL);
589 xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
591 /* Set file name for dot output of graph state */
592 xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
593 "Specify the name of dot file corresponding to graph state",
594 xbt_cfgelm_string, NULL, 0, 1,
595 _mc_cfg_cb_dot_output, NULL);
596 xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
599 /* do verbose-exit */
600 default_value = xbt_strdup("on");
601 xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
602 "Activate the \"do nothing\" mode in Ctrl-C",
603 xbt_cfgelm_boolean, &default_value, 0, 1,
604 _sg_cfg_cb_verbose_exit, NULL);
607 /* context factory */
608 default_value = xbt_strdup("ucontext");
609 xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
610 "Context factory to use in SIMIX (ucontext, thread or raw)",
611 xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
613 /* stack size of contexts in Ko */
614 default_value_int = 128;
615 xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
616 "Stack size of contexts in Kib (ucontext or raw only)",
617 xbt_cfgelm_int, &default_value_int, 1, 1,
618 _sg_cfg_cb_context_stack_size, NULL);
620 /* number of parallel threads for user processes */
621 default_value_int = 1;
622 xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
623 "Number of parallel threads used to execute user contexts",
624 xbt_cfgelm_int, &default_value_int, 1, 1,
625 _sg_cfg_cb_contexts_nthreads, NULL);
627 /* minimal number of user contexts to be run in parallel */
628 default_value_int = 2;
629 xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
630 "Minimal number of user contexts to be run in parallel (raw contexts only)",
631 xbt_cfgelm_int, &default_value_int, 1, 1,
632 _sg_cfg_cb_contexts_parallel_threshold, NULL);
634 /* synchronization mode for parallel user contexts */
636 default_value = xbt_strdup("futex");
637 #else //No futex on mac and posix is unimplememted yet
638 default_value = xbt_strdup("busy_wait");
640 xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
641 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
642 xbt_cfgelm_string, &default_value, 1, 1,
643 _sg_cfg_cb_contexts_parallel_mode, NULL);
645 default_value = xbt_strdup("no");
646 xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
647 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
648 xbt_cfgelm_boolean, &default_value, 1, 1,
649 _sg_cfg_cb__surf_network_coordinates, NULL);
650 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/coordinates", default_value);
652 default_value = xbt_strdup("no");
653 xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
654 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
655 xbt_cfgelm_boolean, &default_value, 0, 1,
656 _sg_cfg_cb__surf_network_crosstraffic, NULL);
657 xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", default_value);
660 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
661 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
662 xbt_cfgelm_double, NULL, 1, 1,
663 _sg_cfg_cb__gtnets_jitter, NULL);
664 xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
666 default_value_int = 10;
667 xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
668 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
669 xbt_cfgelm_int, &default_value_int, 0, 1,
670 _sg_cfg_cb__gtnets_jitter_seed, NULL);
673 xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
674 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
675 xbt_cfgelm_string, NULL, 1, 1,
677 xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
681 double default_reference_speed = 20000.0;
682 xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
683 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
684 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
687 default_value = xbt_strdup("no");
688 xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
689 "Boolean indicating whether we should display the timing after simulation.",
690 xbt_cfgelm_boolean, &default_value, 1, 1, NULL,
692 xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/display_timing", default_value);
694 double default_threshold = 1e-6;
695 xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
696 "Minimal computation time (in seconds) not discarded.",
697 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
700 int default_small_messages_threshold = 0;
701 xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
702 "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
703 xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
706 int default_send_is_detached_threshold = 65536;
707 xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
708 "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
709 xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
712 //For smpi/bw_factor and smpi/lat_factor
713 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
714 //test is if( size >= thresholdN ) return valueN;
715 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
716 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
717 xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
718 "Bandwidth factors for smpi.",
719 xbt_cfgelm_string, NULL, 1, 1, NULL,
721 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");
723 xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
724 "Latency factors for smpi.",
725 xbt_cfgelm_string, NULL, 1, 1, NULL,
727 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");
729 xbt_cfg_register(&_sg_cfg_set, "smpi/os",
730 "Small messages timings (MPI_Send minimum time for small messages)",
731 xbt_cfgelm_string, NULL, 1, 1, NULL,
733 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
735 xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
736 "Small messages timings (MPI_Isend minimum time for small messages)",
737 xbt_cfgelm_string, NULL, 1, 1, NULL,
739 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
741 xbt_cfg_register(&_sg_cfg_set, "smpi/or",
742 "Small messages timings (MPI_Recv minimum time for small messages)",
743 xbt_cfgelm_string, NULL, 1, 1, NULL,
745 xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
746 double default_iprobe_time = 1e-4;
747 xbt_cfg_register(&_sg_cfg_set, "smpi/iprobe",
748 "Minimum time to inject inside a call to MPI_Iprobe",
749 xbt_cfgelm_double, &default_iprobe_time, 1, 1, NULL,
751 default_value = xbt_strdup("default");
752 xbt_cfg_register(&_sg_cfg_set, "smpi/coll_selector",
753 "Which collective selector to use",
754 xbt_cfgelm_string, &default_value, 1, 1, NULL,
757 xbt_cfg_register(&_sg_cfg_set, "smpi/gather",
758 "Which collective to use for gather",
759 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_gather,
762 xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
763 "Which collective to use for allgather",
764 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgather,
767 xbt_cfg_register(&_sg_cfg_set, "smpi/barrier",
768 "Which collective to use for barrier",
769 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_barrier,
772 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce_scatter",
773 "Which collective to use for reduce_scatter",
774 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce_scatter,
777 xbt_cfg_register(&_sg_cfg_set, "smpi/scatter",
778 "Which collective to use for scatter",
779 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_scatter,
782 xbt_cfg_register(&_sg_cfg_set, "smpi/allgatherv",
783 "Which collective to use for allgatherv",
784 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allgatherv,
787 xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
788 "Which collective to use for allreduce",
789 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_allreduce,
792 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
793 "Which collective to use for alltoall",
794 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoall,
797 xbt_cfg_register(&_sg_cfg_set, "smpi/alltoallv",
798 "Which collective to use for alltoallv",
799 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_alltoallv,
802 xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
803 "Which collective to use for bcast",
804 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_bcast,
807 xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
808 "Which collective to use for reduce",
809 xbt_cfgelm_string, NULL, 1, 1, &_sg_cfg_cb__coll_reduce,
814 /* retrieves the current directory of the current process */
815 const char *initial_path = __surf_get_initial_path();
816 xbt_assert((initial_path),
817 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
819 surf_path = xbt_dynar_new(sizeof(char *), NULL);
820 xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
825 sg_config_cmd_line(argc, argv);
827 xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
830 XBT_WARN("Call to sg_config_init() after initialization ignored");
834 void sg_config_finalize(void)
836 if (!_sg_init_status)
837 return; /* Not initialized yet. Nothing to do */
839 xbt_cfg_free(&_sg_cfg_set);
843 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
844 void surf_config_models_setup()
846 char *workstation_model_name;
847 int workstation_id = -1;
848 char *network_model_name = NULL;
849 char *cpu_model_name = NULL;
851 char *storage_model_name = NULL;
853 workstation_model_name =
854 xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
855 network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
856 cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
857 storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
859 /* Check whether we use a net/cpu model differing from the default ones, in which case
860 * we should switch to the "compound" workstation model to correctly dispatch stuff to
861 * the right net/cpu models.
864 if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
865 !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
866 xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
868 const char *val = "compound";
870 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
871 xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
872 workstation_model_name = (char *) "compound";
875 XBT_DEBUG("Workstation model: %s", workstation_model_name);
877 find_model_description(surf_workstation_model_description,
878 workstation_model_name);
879 if (!strcmp(workstation_model_name, "compound")) {
883 xbt_assert(cpu_model_name,
884 "Set a cpu model to use with the 'compound' workstation model");
886 xbt_assert(network_model_name,
887 "Set a network model to use with the 'compound' workstation model");
890 find_model_description(surf_network_model_description,
893 find_model_description(surf_cpu_model_description, cpu_model_name);
895 surf_cpu_model_description[cpu_id].model_init_preparse();
896 surf_network_model_description[network_id].model_init_preparse();
899 XBT_DEBUG("Call workstation_model_init");
900 surf_workstation_model_description[workstation_id].model_init_preparse();
902 XBT_DEBUG("Call storage_model_init");
903 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
904 surf_storage_model_description[storage_id].model_init_preparse();
908 int sg_cfg_get_int(const char* name)
910 return xbt_cfg_get_int(_sg_cfg_set,name);
912 double sg_cfg_get_double(const char* name)
914 return xbt_cfg_get_double(_sg_cfg_set,name);
916 char* sg_cfg_get_string(const char* name)
918 return xbt_cfg_get_string(_sg_cfg_set,name);
920 int sg_cfg_get_boolean(const char* name)
922 return xbt_cfg_get_boolean(_sg_cfg_set,name);
924 void sg_cfg_get_peer(const char *name, char **peer, int *port)
926 xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
928 xbt_dynar_t sg_cfg_get_dynar(const char* name)
930 return xbt_cfg_get_dynar(_sg_cfg_set,name);