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 "Each of these configurations can be used by adding\n"
42 " --cfg=<option name>:<option value>\n"
43 "to the command line.\n"
44 "You can also use --help-models to see the details of all models known by this simulator.\n"
47 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
50 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
54 } else if (!strcmp(argv[i], "--help-models")) {
57 model_help("workstation", surf_workstation_model_description);
59 model_help("CPU", surf_cpu_model_description);
61 model_help("network", surf_network_model_description);
62 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
63 for (k = 0; surf_optimization_mode_description[k].name; k++)
65 surf_optimization_mode_description[k].name,
66 surf_optimization_mode_description[k].description);
67 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
70 } else if (!strcmp(argv[i], "--help-tracing")) {
87 int _surf_init_status = 0; /* 0: beginning of time;
88 1: pre-inited (cfg_set created);
89 2: inited (running) */
91 /* callback of the workstation/model variable */
92 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
96 xbt_assert(_surf_init_status < 2,
97 "Cannot change the model after the initialization");
99 val = xbt_cfg_get_string(_surf_cfg_set, name);
101 if (!strcmp(val, "help")) {
102 model_help("workstation", surf_workstation_model_description);
106 /* Make sure that the model exists */
107 find_model_description(surf_workstation_model_description, val);
110 /* callback of the cpu/model variable */
111 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
115 xbt_assert(_surf_init_status < 2,
116 "Cannot change the model after the initialization");
118 val = xbt_cfg_get_string(_surf_cfg_set, name);
120 if (!strcmp(val, "help")) {
121 model_help("CPU", surf_cpu_model_description);
125 /* New Module missing */
126 find_model_description(surf_cpu_model_description, val);
129 /* callback of the cpu/model variable */
130 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
134 xbt_assert(_surf_init_status < 2,
135 "Cannot change the model after the initialization");
137 val = xbt_cfg_get_string(_surf_cfg_set, name);
139 if (!strcmp(val, "help")) {
140 model_help("optimization", surf_optimization_mode_description);
144 /* New Module missing */
145 find_model_description(surf_optimization_mode_description, val);
148 /* callback of the cpu/model variable */
149 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
153 xbt_assert(_surf_init_status < 2,
154 "Cannot change the model after the initialization");
156 val = xbt_cfg_get_string(_surf_cfg_set, name);
158 if (!strcmp(val, "help")) {
159 model_help("storage", surf_storage_model_description);
163 /* New Module missing */
164 find_model_description(surf_storage_model_description, val);
167 /* callback of the workstation_model variable */
168 static void _surf_cfg_cb__network_model(const char *name, int pos)
172 xbt_assert(_surf_init_status < 2,
173 "Cannot change the model after the initialization");
175 val = xbt_cfg_get_string(_surf_cfg_set, name);
177 if (!strcmp(val, "help")) {
178 model_help("network", surf_network_model_description);
182 /* New Module missing */
183 find_model_description(surf_network_model_description, val);
187 /* callbacks of the network models values */
188 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
190 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
193 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
195 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
198 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
200 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
203 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
205 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
208 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
210 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
213 static void _surf_cfg_cb__weight_S(const char *name, int pos)
215 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
218 /* callback of the inclusion path */
219 static void _surf_cfg_cb__surf_path(const char *name, int pos)
221 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
222 xbt_dynar_push(surf_path, &path);
225 /* callback to decide if we want to use the model-checking */
226 #include "xbt_modinter.h"
227 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
229 static void _surf_cfg_cb_model_check(const char *name, int pos)
231 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
233 if (_surf_do_model_check) {
234 /* Tell modules using mallocators that they shouldn't. MC don't like them */
240 extern int _surf_do_mc_checkpoint; /* this variable lives in xbt_main until I find a right location for it */
242 static void _surf_cfg_cb_mc_checkpoint(const char *name, int pos)
244 _surf_do_mc_checkpoint = xbt_cfg_get_int(_surf_cfg_set, name);
248 extern int _surf_do_verbose_exit;
250 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
252 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
256 static void _surf_cfg_cb_context_factory(const char *name, int pos)
258 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
261 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
263 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
266 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
268 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
271 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
273 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
276 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
278 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
279 if (!strcmp(mode_name, "posix")) {
280 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
282 else if (!strcmp(mode_name, "futex")) {
283 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
285 else if (!strcmp(mode_name, "busy_wait")) {
286 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
289 xbt_die("Command line setting of the parallel synchronization mode should "
290 "be one of \"posix\", \"futex\" or \"busy_wait\"");
294 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
296 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
299 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
302 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
303 if (!strcmp(val, "yes")) {
304 if (!COORD_HOST_LEVEL) {
305 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
306 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
308 } else if (!strcmp(val, "no")) {
309 if (COORD_HOST_LEVEL)
310 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
312 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
316 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
319 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
323 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
325 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
328 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
330 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
334 /* create the config set, register what should be and parse the command line*/
335 void surf_config_init(int *argc, char **argv)
337 char *description = xbt_malloc(1024), *p = description;
339 double double_default_value;
340 int default_value_int;
343 /* Create the configuration support */
344 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
345 _surf_init_status = 1;
348 "The model to use for the CPU. Possible values: ");
350 while (*(++p) != '\0');
351 for (i = 0; surf_cpu_model_description[i].name; i++)
352 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
353 surf_cpu_model_description[i].name);
355 ".\n (use 'help' as a value to see the long description of each model)");
356 default_value = xbt_strdup("Cas01");
357 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
358 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
361 "The optimization modes to use for the CPU. Possible values: ");
363 while (*(++p) != '\0');
364 for (i = 0; surf_optimization_mode_description[i].name; i++)
365 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
366 surf_optimization_mode_description[i].name);
368 ".\n (use 'help' as a value to see the long description of each optimization mode)");
369 default_value = xbt_strdup("Lazy");
370 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
371 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
374 "The model to use for the storage. Possible values: ");
376 while (*(++p) != '\0');
377 for (i = 0; surf_storage_model_description[i].name; i++)
378 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
379 surf_storage_model_description[i].name);
381 ".\n (use 'help' as a value to see the long description of each model)");
382 default_value = xbt_strdup("default");
383 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
384 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
388 "The model to use for the network. Possible values: ");
390 while (*(++p) != '\0');
391 for (i = 0; surf_network_model_description[i].name; i++)
392 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
393 surf_network_model_description[i].name);
395 ".\n (use 'help' as a value to see the long description of each model)");
396 default_value = xbt_strdup("LV08");
397 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
398 &default_value, 1, 1, &_surf_cfg_cb__network_model,
402 "The optimization modes to use for the network. Possible values: ");
404 while (*(++p) != '\0');
405 for (i = 0; surf_optimization_mode_description[i].name; i++)
406 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
407 surf_optimization_mode_description[i].name);
409 ".\n (use 'help' as a value to see the long description of each optimization mode)");
410 default_value = xbt_strdup("Lazy");
411 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
412 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
415 "The model to use for the workstation. Possible values: ");
417 while (*(++p) != '\0');
418 for (i = 0; surf_workstation_model_description[i].name; i++)
419 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
420 surf_workstation_model_description[i].name);
422 ".\n (use 'help' as a value to see the long description of each model)");
423 default_value = xbt_strdup("default");
424 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
425 &default_value, 1, 1,
426 &_surf_cfg_cb__workstation_model, NULL);
428 xbt_free(description);
430 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
431 "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)",
432 xbt_cfgelm_double, NULL, 1, 1,
433 _surf_cfg_cb__tcp_gamma, NULL);
434 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
436 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
437 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
438 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
439 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
441 /* The parameters of network models */
443 double_default_value = 0.0;
444 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
445 "Minimum gap between two overlapping sends",
446 xbt_cfgelm_double, &double_default_value, 1, 1,
447 _surf_cfg_cb__sender_gap, NULL);
449 double_default_value = 1.0;
450 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
451 "Correction factor to apply to the provided latency (default value set by network model)",
452 xbt_cfgelm_double, &double_default_value, 1, 1,
453 _surf_cfg_cb__latency_factor, NULL);
454 double_default_value = 1.0;
455 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
456 "Correction factor to apply to the provided bandwidth (default value set by network model)",
457 xbt_cfgelm_double, &double_default_value, 1, 1,
458 _surf_cfg_cb__bandwidth_factor, NULL);
459 double_default_value = 0.0;
460 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
461 "Correction factor to apply to the weight of competing streams(default value set by network model)",
462 xbt_cfgelm_double, &double_default_value, 1, 1,
463 _surf_cfg_cb__weight_S, NULL);
466 xbt_cfg_register(&_surf_cfg_set, "path",
467 "Lookup path for inclusions in platform and deployment XML files",
468 xbt_cfgelm_string, NULL, 0, 0,
469 _surf_cfg_cb__surf_path, NULL);
471 default_value_int = 0;
472 xbt_cfg_register(&_surf_cfg_set, "cpu/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,
476 default_value_int = 0;
477 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
478 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
479 xbt_cfgelm_int, &default_value_int, 0, 1,
483 default_value_int = 0;
484 xbt_cfg_register(&_surf_cfg_set, "model-check",
485 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
486 xbt_cfgelm_int, &default_value_int, 0, 1,
487 _surf_cfg_cb_model_check, NULL);
490 FIXME: this function is not setting model-check to it's default value because
491 internally it calls to variable->cb_set that in this case is the function
492 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
493 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
496 /* do stateful model-check */
497 default_value_int = 0;
498 xbt_cfg_register(&_surf_cfg_set, "mc-checkpoint",
499 "Activate the stateful model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now), value corresponding to steps between each checkpoint",
500 xbt_cfgelm_int, &default_value_int, 0, 1,
501 _surf_cfg_cb_mc_checkpoint, NULL);
503 /* do verbose-exit */
504 default_value_int = 1;
505 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
506 "Activate the \"do nothing\" mode in Ctrl-C",
507 xbt_cfgelm_int, &default_value_int, 0, 1,
508 _surf_cfg_cb_verbose_exit, NULL);
511 /* context factory */
512 default_value = xbt_strdup("ucontext");
513 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
514 "Context factory to use in SIMIX (ucontext, thread or raw)",
515 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
517 /* stack size of contexts in Ko */
518 default_value_int = 128;
519 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
520 "Stack size of contexts in Kib (ucontext or raw only)",
521 xbt_cfgelm_int, &default_value_int, 1, 1,
522 _surf_cfg_cb_context_stack_size, NULL);
524 /* number of parallel threads for user processes */
525 default_value_int = 1;
526 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
527 "Number of parallel threads used to execute user contexts",
528 xbt_cfgelm_int, &default_value_int, 1, 1,
529 _surf_cfg_cb_contexts_nthreads, NULL);
531 /* minimal number of user contexts to be run in parallel */
532 default_value_int = 2;
533 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
534 "Minimal number of user contexts to be run in parallel (raw contexts only)",
535 xbt_cfgelm_int, &default_value_int, 1, 1,
536 _surf_cfg_cb_contexts_parallel_threshold, NULL);
538 /* synchronization mode for parallel user contexts */
540 default_value = xbt_strdup("futex");
541 #else //No futex on mac and posix is unimplememted yet
542 default_value = xbt_strdup("busy_wait");
544 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
545 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
546 xbt_cfgelm_string, &default_value, 1, 1,
547 _surf_cfg_cb_contexts_parallel_mode, NULL);
549 /* number of parallel threads for Surf */
550 default_value_int = surf_get_nthreads();
551 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
552 "Number of parallel threads used to update Surf models",
553 xbt_cfgelm_int, &default_value_int, 1, 1,
554 _surf_cfg_cb_surf_nthreads, NULL);
556 default_value = xbt_strdup("no");
557 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
558 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
559 xbt_cfgelm_string, &default_value, 1, 1,
560 _surf_cfg_cb__surf_network_coordinates, NULL);
561 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
563 default_value_int = 0;
564 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
565 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
566 xbt_cfgelm_int, &default_value_int, 0, 1,
567 _surf_cfg_cb__surf_network_crosstraffic, NULL);
568 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
571 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
572 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
573 xbt_cfgelm_double, NULL, 1, 1,
574 _surf_cfg_cb__gtnets_jitter, NULL);
575 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
577 default_value_int = 10;
578 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
579 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
580 xbt_cfgelm_int, &default_value_int, 0, 1,
581 _surf_cfg_cb__gtnets_jitter_seed, NULL);
584 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
585 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
586 xbt_cfgelm_string, NULL, 1, 1,
588 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
592 double default_reference_speed = 20000.0;
593 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
594 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
595 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
598 int default_display_timing = 0;
599 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
600 "Boolean indicating whether we should display the timing after simulation.",
601 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
604 double default_threshold = 1e-6;
605 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
606 "Minimal computation time (in seconds) not discarded.",
607 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
610 //For smpi/bw_factor and smpi/lat_factor
611 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
612 //test is if( size >= thresholdN ) return valueN;
613 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
614 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
615 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
616 "Bandwidth factors for smpi.",
617 xbt_cfgelm_string, NULL, 1, 1, NULL,
619 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");
621 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
622 "Latency factors for smpi.",
623 xbt_cfgelm_string, NULL, 1, 1, NULL,
625 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");
630 /* retrieves the current directory of the current process */
631 const char *initial_path = __surf_get_initial_path();
632 xbt_assert((initial_path),
633 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
635 surf_path = xbt_dynar_new(sizeof(char *), NULL);
636 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
640 surf_config_cmd_line(argc, argv);
642 XBT_WARN("Call to surf_config_init() after initialization ignored");
646 void surf_config_finalize(void)
648 if (!_surf_init_status)
649 return; /* Not initialized yet. Nothing to do */
651 xbt_cfg_free(&_surf_cfg_set);
652 _surf_init_status = 0;
655 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
656 void surf_config_models_setup()
658 char *workstation_model_name;
659 int workstation_id = -1;
660 char *network_model_name = NULL;
661 char *cpu_model_name = NULL;
663 char *storage_model_name = NULL;
665 workstation_model_name =
666 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
667 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
668 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
669 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
671 /* Check whether we use a net/cpu model differing from the default ones, in which case
672 * we should switch to the "compound" workstation model to correctly dispatch stuff to
673 * the right net/cpu models.
676 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
677 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
678 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
680 const char *val = "compound";
682 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
683 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
684 workstation_model_name = (char *) "compound";
687 XBT_DEBUG("Workstation model: %s", workstation_model_name);
689 find_model_description(surf_workstation_model_description,
690 workstation_model_name);
691 if (!strcmp(workstation_model_name, "compound")) {
695 xbt_assert(cpu_model_name,
696 "Set a cpu model to use with the 'compound' workstation model");
698 xbt_assert(network_model_name,
699 "Set a network model to use with the 'compound' workstation model");
702 find_model_description(surf_network_model_description,
705 find_model_description(surf_cpu_model_description, cpu_model_name);
707 surf_cpu_model_description[cpu_id].model_init_preparse();
708 surf_network_model_description[network_id].model_init_preparse();
711 XBT_DEBUG("Call workstation_model_init");
712 surf_workstation_model_description[workstation_id].model_init_preparse();
714 XBT_DEBUG("Call storage_model_init");
715 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
716 surf_storage_model_description[storage_id].model_init_preparse();