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 /* surf_config: configuration infrastructure for the simulation world */
9 #include "xbt/config.h"
12 #include "surf/surf_private.h"
13 #include "surf/surf_routing.h" /* COORD_HOST_LEVEL and COORD_ASR_LEVEL */
14 #include "simgrid/simix.h"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
17 "About the configuration of surf (and the rest of the simulation)");
19 xbt_cfg_t _surf_cfg_set = NULL;
21 /* Parse the command line, looking for options */
22 static void surf_config_cmd_line(int *argc, char **argv)
28 for (j = i = 1; i < *argc; i++) {
29 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
30 opt = strchr(argv[i], '=');
33 xbt_cfg_set_parse(_surf_cfg_set, opt);
34 XBT_DEBUG("Did apply '%s' as config setting", opt);
35 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
37 ("Description of the configuration accepted by this simulator:\n");
38 xbt_cfg_help(_surf_cfg_set);
41 "You can also use --help-models to see the details of all models known by this simulator.\n"
44 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
47 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
51 } else if (!strcmp(argv[i], "--help-models")) {
54 model_help("workstation", surf_workstation_model_description);
56 model_help("CPU", surf_cpu_model_description);
58 model_help("network", surf_network_model_description);
59 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
60 for (k = 0; surf_optimization_mode_description[k].name; k++)
62 surf_optimization_mode_description[k].name,
63 surf_optimization_mode_description[k].description);
64 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
67 } else if (!strcmp(argv[i], "--help-tracing")) {
84 int _surf_init_status = 0; /* 0: beginning of time;
85 1: pre-inited (cfg_set created);
86 2: inited (running) */
88 /* callback of the workstation/model variable */
89 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
93 xbt_assert(_surf_init_status < 2,
94 "Cannot change the model after the initialization");
96 val = xbt_cfg_get_string(_surf_cfg_set, name);
98 if (!strcmp(val, "help")) {
99 model_help("workstation", surf_workstation_model_description);
103 /* Make sure that the model exists */
104 find_model_description(surf_workstation_model_description, val);
107 /* callback of the cpu/model variable */
108 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
112 xbt_assert(_surf_init_status < 2,
113 "Cannot change the model after the initialization");
115 val = xbt_cfg_get_string(_surf_cfg_set, name);
117 if (!strcmp(val, "help")) {
118 model_help("CPU", surf_cpu_model_description);
122 /* New Module missing */
123 find_model_description(surf_cpu_model_description, val);
126 /* callback of the cpu/model variable */
127 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
131 xbt_assert(_surf_init_status < 2,
132 "Cannot change the model after the initialization");
134 val = xbt_cfg_get_string(_surf_cfg_set, name);
136 if (!strcmp(val, "help")) {
137 model_help("optimization", surf_optimization_mode_description);
141 /* New Module missing */
142 find_model_description(surf_optimization_mode_description, val);
145 /* callback of the cpu/model variable */
146 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
150 xbt_assert(_surf_init_status < 2,
151 "Cannot change the model after the initialization");
153 val = xbt_cfg_get_string(_surf_cfg_set, name);
155 if (!strcmp(val, "help")) {
156 model_help("storage", surf_storage_model_description);
160 /* New Module missing */
161 find_model_description(surf_storage_model_description, val);
164 /* callback of the workstation_model variable */
165 static void _surf_cfg_cb__network_model(const char *name, int pos)
169 xbt_assert(_surf_init_status < 2,
170 "Cannot change the model after the initialization");
172 val = xbt_cfg_get_string(_surf_cfg_set, name);
174 if (!strcmp(val, "help")) {
175 model_help("network", surf_network_model_description);
179 /* New Module missing */
180 find_model_description(surf_network_model_description, val);
184 /* callbacks of the network models values */
185 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
187 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
190 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
192 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
195 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
197 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
200 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
202 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
205 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
207 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
210 static void _surf_cfg_cb__weight_S(const char *name, int pos)
212 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
215 /* callback of the inclusion path */
216 static void _surf_cfg_cb__surf_path(const char *name, int pos)
218 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
219 xbt_dynar_push(surf_path, &path);
222 /* callback to decide if we want to use the model-checking */
223 #include "xbt_modinter.h"
224 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
226 static void _surf_cfg_cb_model_check(const char *name, int pos)
228 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
230 if (_surf_do_model_check) {
231 /* Tell modules using mallocators that they shouldn't. MC don't like them */
237 extern int _surf_do_verbose_exit;
239 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
241 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
245 static void _surf_cfg_cb_context_factory(const char *name, int pos)
247 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
250 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
252 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
255 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
257 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
260 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
262 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
265 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
267 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
268 if (!strcmp(mode_name, "posix")) {
269 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
271 else if (!strcmp(mode_name, "futex")) {
272 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
274 else if (!strcmp(mode_name, "busy_wait")) {
275 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
278 xbt_die("Command line setting of the parallel synchronization mode should "
279 "be one of \"posix\", \"futex\" or \"busy_wait\"");
283 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
285 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
288 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
291 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
292 if (!strcmp(val, "yes")) {
293 if (!COORD_HOST_LEVEL) {
294 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
295 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
297 } else if (!strcmp(val, "no")) {
298 if (COORD_HOST_LEVEL)
299 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
301 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
305 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
308 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
312 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
314 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
317 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
319 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
323 /* create the config set, register what should be and parse the command line*/
324 void surf_config_init(int *argc, char **argv)
326 char *description = xbt_malloc(1024), *p = description;
328 double double_default_value;
329 int default_value_int;
332 /* Create the configuration support */
333 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
334 _surf_init_status = 1;
337 "The model to use for the CPU. Possible values: ");
339 while (*(++p) != '\0');
340 for (i = 0; surf_cpu_model_description[i].name; i++)
341 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
342 surf_cpu_model_description[i].name);
344 ".\n (use 'help' as a value to see the long description of each model)");
345 default_value = xbt_strdup("Cas01");
346 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
347 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
350 "The optimization modes to use for the CPU. Possible values: ");
352 while (*(++p) != '\0');
353 for (i = 0; surf_optimization_mode_description[i].name; i++)
354 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
355 surf_optimization_mode_description[i].name);
357 ".\n (use 'help' as a value to see the long description of each optimization mode)");
358 default_value = xbt_strdup("Lazy");
359 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
360 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
363 "The model to use for the storage. Possible values: ");
365 while (*(++p) != '\0');
366 for (i = 0; surf_storage_model_description[i].name; i++)
367 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
368 surf_storage_model_description[i].name);
370 ".\n (use 'help' as a value to see the long description of each model)");
371 default_value = xbt_strdup("default");
372 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
373 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
377 "The model to use for the network. Possible values: ");
379 while (*(++p) != '\0');
380 for (i = 0; surf_network_model_description[i].name; i++)
381 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
382 surf_network_model_description[i].name);
384 ".\n (use 'help' as a value to see the long description of each model)");
385 default_value = xbt_strdup("LV08");
386 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
387 &default_value, 1, 1, &_surf_cfg_cb__network_model,
391 "The optimization modes to use for the network. Possible values: ");
393 while (*(++p) != '\0');
394 for (i = 0; surf_optimization_mode_description[i].name; i++)
395 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
396 surf_optimization_mode_description[i].name);
398 ".\n (use 'help' as a value to see the long description of each optimization mode)");
399 default_value = xbt_strdup("Lazy");
400 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
401 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
404 "The model to use for the workstation. Possible values: ");
406 while (*(++p) != '\0');
407 for (i = 0; surf_workstation_model_description[i].name; i++)
408 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
409 surf_workstation_model_description[i].name);
411 ".\n (use 'help' as a value to see the long description of each model)");
412 default_value = xbt_strdup("default");
413 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
414 &default_value, 1, 1,
415 &_surf_cfg_cb__workstation_model, NULL);
417 xbt_free(description);
419 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
420 "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)",
421 xbt_cfgelm_double, NULL, 1, 1,
422 _surf_cfg_cb__tcp_gamma, NULL);
423 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
425 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
426 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
427 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
428 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
430 /* The parameters of network models */
432 double_default_value = 0.0;
433 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
434 "Minimum gap between two overlapping sends",
435 xbt_cfgelm_double, &double_default_value, 1, 1,
436 _surf_cfg_cb__sender_gap, NULL);
438 double_default_value = 1.0;
439 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
440 "Correction factor to apply to the provided latency (default value set by network model)",
441 xbt_cfgelm_double, &double_default_value, 1, 1,
442 _surf_cfg_cb__latency_factor, NULL);
443 double_default_value = 1.0;
444 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
445 "Correction factor to apply to the provided bandwidth (default value set by network model)",
446 xbt_cfgelm_double, &double_default_value, 1, 1,
447 _surf_cfg_cb__bandwidth_factor, NULL);
448 double_default_value = 0.0;
449 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
450 "Correction factor to apply to the weight of competing streams(default value set by network model)",
451 xbt_cfgelm_double, &double_default_value, 1, 1,
452 _surf_cfg_cb__weight_S, NULL);
455 xbt_cfg_register(&_surf_cfg_set, "path",
456 "Lookup path for inclusions in platform and deployment XML files",
457 xbt_cfgelm_string, NULL, 0, 0,
458 _surf_cfg_cb__surf_path, NULL);
460 default_value_int = 0;
461 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
462 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
463 xbt_cfgelm_int, &default_value_int, 0, 1,
465 default_value_int = 0;
466 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
467 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
468 xbt_cfgelm_int, &default_value_int, 0, 1,
472 default_value_int = 0;
473 xbt_cfg_register(&_surf_cfg_set, "model-check",
474 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
475 xbt_cfgelm_int, &default_value_int, 0, 1,
476 _surf_cfg_cb_model_check, NULL);
479 FIXME: this function is not setting model-check to it's default value because
480 internally it calls to variable->cb_set that in this case is the function
481 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
482 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
484 /* do verbose-exit */
485 default_value_int = 1;
486 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
487 "Activate the \"do nothing\" mode in Ctrl-C",
488 xbt_cfgelm_int, &default_value_int, 0, 1,
489 _surf_cfg_cb_verbose_exit, NULL);
492 /* context factory */
493 default_value = xbt_strdup("ucontext");
494 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
495 "Context factory to use in SIMIX (ucontext, thread or raw)",
496 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
498 /* stack size of contexts in Ko */
499 default_value_int = 128;
500 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
501 "Stack size of contexts in Kib (ucontext or raw only)",
502 xbt_cfgelm_int, &default_value_int, 1, 1,
503 _surf_cfg_cb_context_stack_size, NULL);
505 /* number of parallel threads for user processes */
506 default_value_int = 1;
507 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
508 "Number of parallel threads used to execute user contexts",
509 xbt_cfgelm_int, &default_value_int, 1, 1,
510 _surf_cfg_cb_contexts_nthreads, NULL);
512 /* minimal number of user contexts to be run in parallel */
513 default_value_int = 2;
514 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
515 "Minimal number of user contexts to be run in parallel (raw contexts only)",
516 xbt_cfgelm_int, &default_value_int, 1, 1,
517 _surf_cfg_cb_contexts_parallel_threshold, NULL);
519 /* synchronization mode for parallel user contexts */
521 default_value = xbt_strdup("futex");
522 #else //No futex on mac and posix is unimplememted yet
523 default_value = xbt_strdup("busy_wait");
525 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
526 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
527 xbt_cfgelm_string, &default_value, 1, 1,
528 _surf_cfg_cb_contexts_parallel_mode, NULL);
530 /* number of parallel threads for Surf */
531 default_value_int = surf_get_nthreads();
532 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
533 "Number of parallel threads used to update Surf models",
534 xbt_cfgelm_int, &default_value_int, 1, 1,
535 _surf_cfg_cb_surf_nthreads, NULL);
537 default_value = xbt_strdup("no");
538 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
539 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
540 xbt_cfgelm_string, &default_value, 1, 1,
541 _surf_cfg_cb__surf_network_coordinates, NULL);
542 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
544 default_value_int = 0;
545 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
546 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
547 xbt_cfgelm_int, &default_value_int, 0, 1,
548 _surf_cfg_cb__surf_network_crosstraffic, NULL);
549 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
552 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
553 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
554 xbt_cfgelm_double, NULL, 1, 1,
555 _surf_cfg_cb__gtnets_jitter, NULL);
556 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
558 default_value_int = 10;
559 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
560 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
561 xbt_cfgelm_int, &default_value_int, 0, 1,
562 _surf_cfg_cb__gtnets_jitter_seed, NULL);
565 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
566 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
567 xbt_cfgelm_string, NULL, 1, 1,
569 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
573 double default_reference_speed = 20000.0;
574 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
575 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
576 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
579 int default_display_timing = 0;
580 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
581 "Boolean indicating whether we should display the timing after simulation.",
582 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
585 double default_threshold = 1e-6;
586 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
587 "Minimal computation time (in seconds) not discarded.",
588 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
591 //For smpi/bw_factor and smpi/lat_factor
592 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
593 //test is if( size >= thresholdN ) return valueN;
594 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
595 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
596 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
597 "Bandwidth factors for smpi.",
598 xbt_cfgelm_string, NULL, 1, 1, NULL,
600 xbt_cfg_setdefault_string(_surf_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");
602 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
603 "Latency factors for smpi.",
604 xbt_cfgelm_string, NULL, 1, 1, NULL,
606 xbt_cfg_setdefault_string(_surf_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");
611 /* retrieves the current directory of the current process */
612 const char *initial_path = __surf_get_initial_path();
613 xbt_assert((initial_path),
614 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
616 surf_path = xbt_dynar_new(sizeof(char *), NULL);
617 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
621 surf_config_cmd_line(argc, argv);
623 XBT_WARN("Call to surf_config_init() after initialization ignored");
627 void surf_config_finalize(void)
629 if (!_surf_init_status)
630 return; /* Not initialized yet. Nothing to do */
632 xbt_cfg_free(&_surf_cfg_set);
633 _surf_init_status = 0;
636 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
637 void surf_config_models_setup()
639 char *workstation_model_name;
640 int workstation_id = -1;
641 char *network_model_name = NULL;
642 char *cpu_model_name = NULL;
644 char *storage_model_name = NULL;
646 workstation_model_name =
647 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
648 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
649 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
650 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
652 /* Check whether we use a net/cpu model differing from the default ones, in which case
653 * we should switch to the "compound" workstation model to correctly dispatch stuff to
654 * the right net/cpu models.
657 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
658 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
659 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
661 const char *val = "compound";
663 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
664 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
665 workstation_model_name = (char *) "compound";
668 XBT_DEBUG("Workstation model: %s", workstation_model_name);
670 find_model_description(surf_workstation_model_description,
671 workstation_model_name);
672 if (!strcmp(workstation_model_name, "compound")) {
676 xbt_assert(cpu_model_name,
677 "Set a cpu model to use with the 'compound' workstation model");
679 xbt_assert(network_model_name,
680 "Set a network model to use with the 'compound' workstation model");
683 find_model_description(surf_network_model_description,
686 find_model_description(surf_cpu_model_description, cpu_model_name);
688 surf_cpu_model_description[cpu_id].model_init_preparse();
689 surf_network_model_description[network_id].model_init_preparse();
692 XBT_DEBUG("Call workstation_model_init");
693 surf_workstation_model_description[workstation_id].model_init_preparse();
695 XBT_DEBUG("Call storage_model_init");
696 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
697 surf_storage_model_description[storage_id].model_init_preparse();