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 "simix/context.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");
66 } else if (!strcmp(argv[i], "--help-logs")) {
69 } else if (!strcmp(argv[i], "--help-log-categories")) {
70 xbt_log_help_categories();
73 } else if (!strcmp(argv[i], "--help-tracing")) {
90 int _surf_init_status = 0; /* 0: beginning of time;
91 1: pre-inited (cfg_set created);
92 2: inited (running) */
94 /* callback of the workstation/model variable */
95 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
99 xbt_assert(_surf_init_status < 2,
100 "Cannot change the model after the initialization");
102 val = xbt_cfg_get_string(_surf_cfg_set, name);
104 if (!strcmp(val, "help")) {
105 model_help("workstation", surf_workstation_model_description);
109 /* Make sure that the model exists */
110 find_model_description(surf_workstation_model_description, val);
113 /* callback of the cpu/model variable */
114 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
118 xbt_assert(_surf_init_status < 2,
119 "Cannot change the model after the initialization");
121 val = xbt_cfg_get_string(_surf_cfg_set, name);
123 if (!strcmp(val, "help")) {
124 model_help("CPU", surf_cpu_model_description);
128 /* New Module missing */
129 find_model_description(surf_cpu_model_description, val);
132 /* callback of the cpu/model variable */
133 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
137 xbt_assert(_surf_init_status < 2,
138 "Cannot change the model after the initialization");
140 val = xbt_cfg_get_string(_surf_cfg_set, name);
142 if (!strcmp(val, "help")) {
143 model_help("optimization", surf_optimization_mode_description);
147 /* New Module missing */
148 find_model_description(surf_optimization_mode_description, val);
151 /* callback of the cpu/model variable */
152 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
156 xbt_assert(_surf_init_status < 2,
157 "Cannot change the model after the initialization");
159 val = xbt_cfg_get_string(_surf_cfg_set, name);
161 if (!strcmp(val, "help")) {
162 model_help("storage", surf_storage_model_description);
166 /* New Module missing */
167 find_model_description(surf_storage_model_description, val);
170 /* callback of the workstation_model variable */
171 static void _surf_cfg_cb__network_model(const char *name, int pos)
175 xbt_assert(_surf_init_status < 2,
176 "Cannot change the model after the initialization");
178 val = xbt_cfg_get_string(_surf_cfg_set, name);
180 if (!strcmp(val, "help")) {
181 model_help("network", surf_network_model_description);
185 /* New Module missing */
186 find_model_description(surf_network_model_description, val);
190 /* callbacks of the network models values */
191 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
193 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
196 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
198 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
201 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
203 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
206 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
208 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
211 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
213 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
216 static void _surf_cfg_cb__weight_S(const char *name, int pos)
218 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
221 /* callback of the inclusion path */
222 static void _surf_cfg_cb__surf_path(const char *name, int pos)
224 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
225 xbt_dynar_push(surf_path, &path);
228 /* callback to decide if we want to use the model-checking */
229 #include "xbt_modinter.h"
230 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
232 static void _surf_cfg_cb_model_check(const char *name, int pos)
234 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
236 if (_surf_do_model_check) {
237 /* Tell modules using mallocators that they shouldn't. MC don't like them */
243 extern int _surf_do_verbose_exit;
245 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
247 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
251 static void _surf_cfg_cb_context_factory(const char *name, int pos)
253 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
256 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
258 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
261 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
263 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
266 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
268 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
271 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
273 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
274 if (!strcmp(mode_name, "posix")) {
275 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
277 else if (!strcmp(mode_name, "futex")) {
278 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
280 else if (!strcmp(mode_name, "busy_wait")) {
281 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
284 xbt_die("Command line setting of the parallel synchronization mode should "
285 "be one of \"posix\", \"futex\" or \"busy_wait\"");
289 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
291 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
294 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
297 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
298 if (!strcmp(val, "yes")) {
299 if (!COORD_HOST_LEVEL) {
300 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
301 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
303 } else if (!strcmp(val, "no")) {
304 if (COORD_HOST_LEVEL)
305 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
307 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
311 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
314 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
318 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
320 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
323 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
325 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
329 /* create the config set, register what should be and parse the command line*/
330 void surf_config_init(int *argc, char **argv)
332 char *description = xbt_malloc(1024), *p = description;
334 double double_default_value;
335 int default_value_int;
338 /* Create the configuration support */
339 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
340 _surf_init_status = 1;
343 "The model to use for the CPU. Possible values: ");
345 while (*(++p) != '\0');
346 for (i = 0; surf_cpu_model_description[i].name; i++)
347 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
348 surf_cpu_model_description[i].name);
350 ".\n (use 'help' as a value to see the long description of each model)");
351 default_value = xbt_strdup("Cas01");
352 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
353 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
356 "The optimization modes to use for the CPU. Possible values: ");
358 while (*(++p) != '\0');
359 for (i = 0; surf_optimization_mode_description[i].name; i++)
360 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
361 surf_optimization_mode_description[i].name);
363 ".\n (use 'help' as a value to see the long description of each optimization mode)");
364 default_value = xbt_strdup("Lazy");
365 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
366 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
369 "The model to use for the storage. Possible values: ");
371 while (*(++p) != '\0');
372 for (i = 0; surf_storage_model_description[i].name; i++)
373 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
374 surf_storage_model_description[i].name);
376 ".\n (use 'help' as a value to see the long description of each model)");
377 default_value = xbt_strdup("default");
378 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
379 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
383 "The model to use for the network. Possible values: ");
385 while (*(++p) != '\0');
386 for (i = 0; surf_network_model_description[i].name; i++)
387 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
388 surf_network_model_description[i].name);
390 ".\n (use 'help' as a value to see the long description of each model)");
391 default_value = xbt_strdup("LV08");
392 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
393 &default_value, 1, 1, &_surf_cfg_cb__network_model,
397 "The optimization modes to use for the network. Possible values: ");
399 while (*(++p) != '\0');
400 for (i = 0; surf_optimization_mode_description[i].name; i++)
401 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
402 surf_optimization_mode_description[i].name);
404 ".\n (use 'help' as a value to see the long description of each optimization mode)");
405 default_value = xbt_strdup("Lazy");
406 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
407 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
410 "The model to use for the workstation. Possible values: ");
412 while (*(++p) != '\0');
413 for (i = 0; surf_workstation_model_description[i].name; i++)
414 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
415 surf_workstation_model_description[i].name);
417 ".\n (use 'help' as a value to see the long description of each model)");
418 default_value = xbt_strdup("default");
419 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
420 &default_value, 1, 1,
421 &_surf_cfg_cb__workstation_model, NULL);
423 xbt_free(description);
425 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
426 "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)",
427 xbt_cfgelm_double, NULL, 1, 1,
428 _surf_cfg_cb__tcp_gamma, NULL);
429 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
431 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
432 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
433 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
434 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
436 /* The parameters of network models */
438 double_default_value = 0.0;
439 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
440 "Minimum gap between two overlapping sends",
441 xbt_cfgelm_double, &double_default_value, 1, 1,
442 _surf_cfg_cb__sender_gap, NULL);
444 double_default_value = 1.0;
445 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
446 "Correction factor to apply to the provided latency (default value set by network model)",
447 xbt_cfgelm_double, &double_default_value, 1, 1,
448 _surf_cfg_cb__latency_factor, NULL);
449 double_default_value = 1.0;
450 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
451 "Correction factor to apply to the provided bandwidth (default value set by network model)",
452 xbt_cfgelm_double, &double_default_value, 1, 1,
453 _surf_cfg_cb__bandwidth_factor, NULL);
454 double_default_value = 0.0;
455 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
456 "Correction factor to apply to the weight of competing streams(default value set by network model)",
457 xbt_cfgelm_double, &double_default_value, 1, 1,
458 _surf_cfg_cb__weight_S, NULL);
461 xbt_cfg_register(&_surf_cfg_set, "path",
462 "Lookup path for inclusions in platform and deployment XML files",
463 xbt_cfgelm_string, NULL, 0, 0,
464 _surf_cfg_cb__surf_path, NULL);
466 default_value_int = 0;
467 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
468 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
469 xbt_cfgelm_int, &default_value_int, 0, 1,
471 default_value_int = 0;
472 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
473 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
474 xbt_cfgelm_int, &default_value_int, 0, 1,
478 default_value_int = 0;
479 xbt_cfg_register(&_surf_cfg_set, "model-check",
480 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
481 xbt_cfgelm_int, &default_value_int, 0, 1,
482 _surf_cfg_cb_model_check, NULL);
485 FIXME: this function is not setting model-check to it's default value because
486 internally it calls to variable->cb_set that in this case is the function
487 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
488 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
490 /* do verbose-exit */
491 default_value_int = 1;
492 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
493 "Activate the \"do nothing\" mode in Ctrl-C",
494 xbt_cfgelm_int, &default_value_int, 0, 1,
495 _surf_cfg_cb_verbose_exit, NULL);
498 /* context factory */
499 default_value = xbt_strdup("ucontext");
500 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
501 "Context factory to use in SIMIX (ucontext, thread or raw)",
502 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
504 /* stack size of contexts in Ko */
505 default_value_int = 128;
506 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
507 "Stack size of contexts in Kib (ucontext or raw only)",
508 xbt_cfgelm_int, &default_value_int, 1, 1,
509 _surf_cfg_cb_context_stack_size, NULL);
511 /* number of parallel threads for user processes */
512 default_value_int = 1;
513 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
514 "Number of parallel threads used to execute user contexts",
515 xbt_cfgelm_int, &default_value_int, 1, 1,
516 _surf_cfg_cb_contexts_nthreads, NULL);
518 /* minimal number of user contexts to be run in parallel */
519 default_value_int = 2;
520 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
521 "Minimal number of user contexts to be run in parallel (raw contexts only)",
522 xbt_cfgelm_int, &default_value_int, 1, 1,
523 _surf_cfg_cb_contexts_parallel_threshold, NULL);
525 /* synchronization mode for parallel user contexts */
527 default_value = xbt_strdup("futex");
528 #else //No futex on mac and posix is unimplememted yet
529 default_value = xbt_strdup("busy_wait");
531 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
532 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
533 xbt_cfgelm_string, &default_value, 1, 1,
534 _surf_cfg_cb_contexts_parallel_mode, NULL);
536 /* number of parallel threads for Surf */
537 default_value_int = surf_get_nthreads();
538 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
539 "Number of parallel threads used to update Surf models",
540 xbt_cfgelm_int, &default_value_int, 1, 1,
541 _surf_cfg_cb_surf_nthreads, NULL);
543 default_value = xbt_strdup("no");
544 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
545 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
546 xbt_cfgelm_string, &default_value, 1, 1,
547 _surf_cfg_cb__surf_network_coordinates, NULL);
548 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
550 default_value_int = 0;
551 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
552 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
553 xbt_cfgelm_int, &default_value_int, 0, 1,
554 _surf_cfg_cb__surf_network_crosstraffic, NULL);
555 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
558 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
559 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
560 xbt_cfgelm_double, NULL, 1, 1,
561 _surf_cfg_cb__gtnets_jitter, NULL);
562 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
564 default_value_int = 10;
565 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
566 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
567 xbt_cfgelm_int, &default_value_int, 0, 1,
568 _surf_cfg_cb__gtnets_jitter_seed, NULL);
571 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
572 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
573 xbt_cfgelm_string, NULL, 1, 1,
575 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
579 double default_reference_speed = 20000.0;
580 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
581 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
582 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
585 int default_display_timing = 0;
586 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
587 "Boolean indicating whether we should display the timing after simulation.",
588 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
591 double default_threshold = 1e-6;
592 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
593 "Minimal computation time (in seconds) not discarded.",
594 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
597 //For smpi/bw_factor and smpi/lat_factor
598 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
599 //test is if( size >= thresholdN ) return valueN;
600 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
601 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
602 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
603 "Bandwidth factors for smpi.",
604 xbt_cfgelm_string, NULL, 1, 1, NULL,
606 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");
608 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
609 "Latency factors for smpi.",
610 xbt_cfgelm_string, NULL, 1, 1, NULL,
612 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");
617 /* retrieves the current directory of the current process */
618 const char *initial_path = __surf_get_initial_path();
619 xbt_assert((initial_path),
620 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
622 surf_path = xbt_dynar_new(sizeof(char *), NULL);
623 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
627 surf_config_cmd_line(argc, argv);
629 XBT_WARN("Call to surf_config_init() after initialization ignored");
633 void surf_config_finalize(void)
635 if (!_surf_init_status)
636 return; /* Not initialized yet. Nothing to do */
638 xbt_cfg_free(&_surf_cfg_set);
639 _surf_init_status = 0;
642 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
643 void surf_config_models_setup()
645 char *workstation_model_name;
646 int workstation_id = -1;
647 char *network_model_name = NULL;
648 char *cpu_model_name = NULL;
650 char *storage_model_name = NULL;
652 workstation_model_name =
653 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
654 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
655 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
656 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
658 /* Check whether we use a net/cpu model differing from the default ones, in which case
659 * we should switch to the "compound" workstation model to correctly dispatch stuff to
660 * the right net/cpu models.
663 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
664 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
665 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
667 const char *val = "compound";
669 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
670 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
671 workstation_model_name = (char *) "compound";
674 XBT_DEBUG("Workstation model: %s", workstation_model_name);
676 find_model_description(surf_workstation_model_description,
677 workstation_model_name);
678 if (!strcmp(workstation_model_name, "compound")) {
682 xbt_assert(cpu_model_name,
683 "Set a cpu model to use with the 'compound' workstation model");
685 xbt_assert(network_model_name,
686 "Set a network model to use with the 'compound' workstation model");
689 find_model_description(surf_network_model_description,
692 find_model_description(surf_cpu_model_description, cpu_model_name);
694 surf_cpu_model_description[cpu_id].model_init_preparse();
695 surf_network_model_description[network_id].model_init_preparse();
698 XBT_DEBUG("Call workstation_model_init");
699 surf_workstation_model_description[workstation_id].model_init_preparse();
701 XBT_DEBUG("Call storage_model_init");
702 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
703 surf_storage_model_description[storage_id].model_init_preparse();