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"
11 #include "surf/surf_private.h"
12 #include "surf/surf_routing.h" /* COORD_HOST_LEVEL and COORD_ASR_LEVEL */
13 #include "simix/context.h"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
16 "About the configuration of surf (and the rest of the simulation)");
18 xbt_cfg_t _surf_cfg_set = NULL;
20 static void LOG_help(void)
23 "Description of the logging output:\n"
25 " Threshold configuration: --log=CATEGORY_NAME.thres:PRIORITY_LEVEL\n"
26 " CATEGORY_NAME: defined in code with function 'XBT_LOG_NEW_CATEGORY'\n"
27 " PRIORITY_LEVEL: the level to print (trace,debug,verbose,info,warning,error,critical)\n"
28 " -> trace: enter and return of some functions\n"
29 " -> debug: crufty output\n"
30 " -> verbose: verbose output for the user wanting more\n"
31 " -> info: output about the regular functionning\n"
32 " -> warning: minor issue encountered\n"
33 " -> error: issue encountered\n"
34 " -> critical: major issue encountered\n"
36 " Format configuration: --log=CATEGORY_NAME.fmt:OPTIONS\n"
38 " -> %%%%: the %% char\n"
39 " -> %%n: platform-dependent line separator (LOG4J compatible)\n"
40 " -> %%e: plain old space (SimGrid extension)\n"
42 " -> %%m: user-provided message\n"
44 " -> %%c: Category name (LOG4J compatible)\n"
45 " -> %%p: Priority name (LOG4J compatible)\n"
47 " -> %%h: Hostname (SimGrid extension)\n"
48 " -> %%P: Process name (SimGrid extension)\n"
49 " -> %%t: Thread \"name\" (LOG4J compatible -- actually the address of the thread in memory)\n"
50 " -> %%i: Process PID (SimGrid extension -- this is a 'i' as in 'i'dea)\n"
52 " -> %%F: file name where the log event was raised (LOG4J compatible)\n"
53 " -> %%l: location where the log event was raised (LOG4J compatible, like '%%F:%%L' -- this is a l as in 'l'etter)\n"
54 " -> %%L: line number where the log event was raised (LOG4J compatible)\n"
55 " -> %%M: function name (LOG4J compatible -- called method name here of course).\n"
56 " Defined only when using gcc because there is no __FUNCTION__ elsewhere.\n"
58 " -> %%b: full backtrace (Called %%throwable in LOG4J). Defined only under windows or when using the GNU libc because\n"
59 " backtrace() is not defined elsewhere, and we only have a fallback for windows boxes, not mac ones for example.\n"
60 " -> %%B: short backtrace (only the first line of the %%b). Called %%throwable{short} in LOG4J; defined where %%b is.\n"
62 " -> %%d: date (UNIX-like epoch)\n"
63 " -> %%r: application age (time elapsed since the beginning of the application)\n"
68 /* Parse the command line, looking for options */
69 static void surf_config_cmd_line(int *argc, char **argv)
75 for (j = i = 1; i < *argc; i++) {
76 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
77 opt = strchr(argv[i], '=');
80 xbt_cfg_set_parse(_surf_cfg_set, opt);
81 XBT_DEBUG("Did apply '%s' as config setting", opt);
82 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
84 ("Description of the configuration accepted by this simulator:\n");
85 xbt_cfg_help(_surf_cfg_set);
88 "You can also use --help-models to see the details of all models known by this simulator.\n"
91 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
94 "You can also use --help-logs to see the details of logging output.\n"
98 } else if (!strcmp(argv[i], "--help-models")) {
101 model_help("workstation", surf_workstation_model_description);
103 model_help("CPU", surf_cpu_model_description);
105 model_help("network", surf_network_model_description);
106 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
107 for (k = 0; surf_optimization_mode_description[k].name; k++)
109 surf_optimization_mode_description[k].name,
110 surf_optimization_mode_description[k].description);
111 printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
113 } else if (!strcmp(argv[i], "--help-logs")) {
117 } else if (!strcmp(argv[i], "--help-tracing")) {
134 int _surf_init_status = 0; /* 0: beginning of time;
135 1: pre-inited (cfg_set created);
136 2: inited (running) */
138 /* callback of the workstation/model variable */
139 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
143 xbt_assert(_surf_init_status < 2,
144 "Cannot change the model after the initialization");
146 val = xbt_cfg_get_string(_surf_cfg_set, name);
148 if (!strcmp(val, "help")) {
149 model_help("workstation", surf_workstation_model_description);
153 /* Make sure that the model exists */
154 find_model_description(surf_workstation_model_description, val);
157 /* callback of the cpu/model variable */
158 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
162 xbt_assert(_surf_init_status < 2,
163 "Cannot change the model after the initialization");
165 val = xbt_cfg_get_string(_surf_cfg_set, name);
167 if (!strcmp(val, "help")) {
168 model_help("CPU", surf_cpu_model_description);
172 /* New Module missing */
173 find_model_description(surf_cpu_model_description, val);
176 /* callback of the cpu/model variable */
177 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
181 xbt_assert(_surf_init_status < 2,
182 "Cannot change the model after the initialization");
184 val = xbt_cfg_get_string(_surf_cfg_set, name);
186 if (!strcmp(val, "help")) {
187 model_help("optimization", surf_optimization_mode_description);
191 /* New Module missing */
192 find_model_description(surf_optimization_mode_description, val);
195 /* callback of the cpu/model variable */
196 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
200 xbt_assert(_surf_init_status < 2,
201 "Cannot change the model after the initialization");
203 val = xbt_cfg_get_string(_surf_cfg_set, name);
205 if (!strcmp(val, "help")) {
206 model_help("storage", surf_storage_model_description);
210 /* New Module missing */
211 find_model_description(surf_storage_model_description, val);
214 /* callback of the workstation_model variable */
215 static void _surf_cfg_cb__network_model(const char *name, int pos)
219 xbt_assert(_surf_init_status < 2,
220 "Cannot change the model after the initialization");
222 val = xbt_cfg_get_string(_surf_cfg_set, name);
224 if (!strcmp(val, "help")) {
225 model_help("network", surf_network_model_description);
229 /* New Module missing */
230 find_model_description(surf_network_model_description, val);
234 /* callbacks of the network models values */
235 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
237 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
240 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
242 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
245 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
247 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
250 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
252 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
255 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
257 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
260 static void _surf_cfg_cb__weight_S(const char *name, int pos)
262 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
265 /* callback of the inclusion path */
266 static void _surf_cfg_cb__surf_path(const char *name, int pos)
268 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
269 xbt_dynar_push(surf_path, &path);
272 /* callback to decide if we want to use the model-checking */
273 #include "xbt_modinter.h"
274 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
276 static void _surf_cfg_cb_model_check(const char *name, int pos)
278 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
280 if (_surf_do_model_check) {
281 /* Tell modules using mallocators that they shouldn't. MC don't like them */
287 extern int _surf_do_verbose_exit;
289 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
291 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
295 static void _surf_cfg_cb_context_factory(const char *name, int pos)
297 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
300 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
302 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
305 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
307 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
310 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
312 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
315 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
317 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
318 if (!strcmp(mode_name, "posix")) {
319 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
321 else if (!strcmp(mode_name, "futex")) {
322 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
324 else if (!strcmp(mode_name, "busy_wait")) {
325 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
328 xbt_die("Command line setting of the parallel synchronization mode should "
329 "be one of \"posix\", \"futex\" or \"busy_wait\"");
333 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
335 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
338 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
341 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
342 if (!strcmp(val, "yes")) {
343 if (!COORD_HOST_LEVEL) {
344 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
345 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
347 } else if (!strcmp(val, "no")) {
348 if (COORD_HOST_LEVEL)
349 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
351 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
355 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
358 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
362 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
364 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
367 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
369 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
373 /* create the config set, register what should be and parse the command line*/
374 void surf_config_init(int *argc, char **argv)
376 char *description = xbt_malloc(1024), *p = description;
378 double double_default_value;
379 int default_value_int;
382 /* Create the configuration support */
383 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
384 _surf_init_status = 1;
387 "The model to use for the CPU. Possible values: ");
389 while (*(++p) != '\0');
390 for (i = 0; surf_cpu_model_description[i].name; i++)
391 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
392 surf_cpu_model_description[i].name);
394 ".\n (use 'help' as a value to see the long description of each model)");
395 default_value = xbt_strdup("Cas01");
396 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
397 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
400 "The optimization modes to use for the CPU. Possible values: ");
402 while (*(++p) != '\0');
403 for (i = 0; surf_optimization_mode_description[i].name; i++)
404 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
405 surf_optimization_mode_description[i].name);
407 ".\n (use 'help' as a value to see the long description of each optimization mode)");
408 default_value = xbt_strdup("Lazy");
409 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
410 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
413 "The model to use for the storage. Possible values: ");
415 while (*(++p) != '\0');
416 for (i = 0; surf_storage_model_description[i].name; i++)
417 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
418 surf_storage_model_description[i].name);
420 ".\n (use 'help' as a value to see the long description of each model)");
421 default_value = xbt_strdup("default");
422 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
423 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
427 "The model to use for the network. Possible values: ");
429 while (*(++p) != '\0');
430 for (i = 0; surf_network_model_description[i].name; i++)
431 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
432 surf_network_model_description[i].name);
434 ".\n (use 'help' as a value to see the long description of each model)");
435 default_value = xbt_strdup("LV08");
436 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
437 &default_value, 1, 1, &_surf_cfg_cb__network_model,
441 "The optimization modes to use for the network. Possible values: ");
443 while (*(++p) != '\0');
444 for (i = 0; surf_optimization_mode_description[i].name; i++)
445 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
446 surf_optimization_mode_description[i].name);
448 ".\n (use 'help' as a value to see the long description of each optimization mode)");
449 default_value = xbt_strdup("Lazy");
450 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
451 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
454 "The model to use for the workstation. Possible values: ");
456 while (*(++p) != '\0');
457 for (i = 0; surf_workstation_model_description[i].name; i++)
458 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
459 surf_workstation_model_description[i].name);
461 ".\n (use 'help' as a value to see the long description of each model)");
462 default_value = xbt_strdup("default");
463 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
464 &default_value, 1, 1,
465 &_surf_cfg_cb__workstation_model, NULL);
467 xbt_free(description);
469 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
470 "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)",
471 xbt_cfgelm_double, NULL, 1, 1,
472 _surf_cfg_cb__tcp_gamma, NULL);
473 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
475 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
476 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
477 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
478 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
480 /* The parameters of network models */
482 double_default_value = 0.0;
483 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
484 "Minimum gap between two overlapping sends",
485 xbt_cfgelm_double, &double_default_value, 1, 1,
486 _surf_cfg_cb__sender_gap, NULL);
488 double_default_value = 1.0;
489 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
490 "Correction factor to apply to the provided latency (default value set by network model)",
491 xbt_cfgelm_double, &double_default_value, 1, 1,
492 _surf_cfg_cb__latency_factor, NULL);
493 double_default_value = 1.0;
494 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
495 "Correction factor to apply to the provided bandwidth (default value set by network model)",
496 xbt_cfgelm_double, &double_default_value, 1, 1,
497 _surf_cfg_cb__bandwidth_factor, NULL);
498 double_default_value = 0.0;
499 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
500 "Correction factor to apply to the weight of competing streams(default value set by network model)",
501 xbt_cfgelm_double, &double_default_value, 1, 1,
502 _surf_cfg_cb__weight_S, NULL);
505 xbt_cfg_register(&_surf_cfg_set, "path",
506 "Lookup path for inclusions in platform and deployment XML files",
507 xbt_cfgelm_string, NULL, 0, 0,
508 _surf_cfg_cb__surf_path, NULL);
510 default_value_int = 0;
511 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
512 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
513 xbt_cfgelm_int, &default_value_int, 0, 1,
515 default_value_int = 0;
516 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
517 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
518 xbt_cfgelm_int, &default_value_int, 0, 1,
522 default_value_int = 0;
523 xbt_cfg_register(&_surf_cfg_set, "model-check",
524 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
525 xbt_cfgelm_int, &default_value_int, 0, 1,
526 _surf_cfg_cb_model_check, NULL);
529 FIXME: this function is not setting model-check to it's default value because
530 internally it calls to variable->cb_set that in this case is the function
531 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
532 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
534 /* do verbose-exit */
535 default_value_int = 1;
536 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
537 "Activate the \"do nothing\" mode in Ctrl-C",
538 xbt_cfgelm_int, &default_value_int, 0, 1,
539 _surf_cfg_cb_verbose_exit, NULL);
542 /* context factory */
543 default_value = xbt_strdup("ucontext");
544 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
545 "Context factory to use in SIMIX (ucontext, thread or raw)",
546 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
548 /* stack size of contexts in Ko */
549 default_value_int = 128;
550 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
551 "Stack size of contexts in Kib (ucontext or raw only)",
552 xbt_cfgelm_int, &default_value_int, 1, 1,
553 _surf_cfg_cb_context_stack_size, NULL);
555 /* number of parallel threads for user processes */
556 default_value_int = 1;
557 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
558 "Number of parallel threads used to execute user contexts",
559 xbt_cfgelm_int, &default_value_int, 1, 1,
560 _surf_cfg_cb_contexts_nthreads, NULL);
562 /* minimal number of user contexts to be run in parallel */
563 default_value_int = 2;
564 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
565 "Minimal number of user contexts to be run in parallel (raw contexts only)",
566 xbt_cfgelm_int, &default_value_int, 1, 1,
567 _surf_cfg_cb_contexts_parallel_threshold, NULL);
569 /* synchronization mode for parallel user contexts */
571 default_value = xbt_strdup("futex");
572 #else //No futex on mac and posix is unimplememted yet
573 default_value = xbt_strdup("busy_wait");
575 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
576 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
577 xbt_cfgelm_string, &default_value, 1, 1,
578 _surf_cfg_cb_contexts_parallel_mode, NULL);
580 /* number of parallel threads for Surf */
581 default_value_int = surf_get_nthreads();
582 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
583 "Number of parallel threads used to update Surf models",
584 xbt_cfgelm_int, &default_value_int, 1, 1,
585 _surf_cfg_cb_surf_nthreads, NULL);
587 default_value = xbt_strdup("no");
588 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
589 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
590 xbt_cfgelm_string, &default_value, 1, 1,
591 _surf_cfg_cb__surf_network_coordinates, NULL);
592 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
594 default_value_int = 0;
595 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
596 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
597 xbt_cfgelm_int, &default_value_int, 0, 1,
598 _surf_cfg_cb__surf_network_crosstraffic, NULL);
599 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
602 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
603 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
604 xbt_cfgelm_double, NULL, 1, 1,
605 _surf_cfg_cb__gtnets_jitter, NULL);
606 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
608 default_value_int = 10;
609 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
610 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
611 xbt_cfgelm_int, &default_value_int, 0, 1,
612 _surf_cfg_cb__gtnets_jitter_seed, NULL);
615 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
616 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
617 xbt_cfgelm_string, NULL, 1, 1,
619 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
623 double default_reference_speed = 20000.0;
624 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
625 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
626 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
629 int default_display_timing = 0;
630 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
631 "Boolean indicating whether we should display the timing after simulation.",
632 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
635 double default_threshold = 1e-6;
636 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
637 "Minimal computation time (in seconds) not discarded.",
638 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
641 //For smpi/bw_factor and smpi/lat_factor
642 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
643 //test is if( size >= thresholdN ) return valueN;
644 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
645 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
646 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
647 "Bandwidth factors for smpi.",
648 xbt_cfgelm_string, NULL, 1, 1, NULL,
650 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");
652 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
653 "Latency factors for smpi.",
654 xbt_cfgelm_string, NULL, 1, 1, NULL,
656 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");
661 /* retrieves the current directory of the current process */
662 const char *initial_path = __surf_get_initial_path();
663 xbt_assert((initial_path),
664 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
666 surf_path = xbt_dynar_new(sizeof(char *), NULL);
667 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
671 surf_config_cmd_line(argc, argv);
673 XBT_WARN("Call to surf_config_init() after initialization ignored");
677 void surf_config_finalize(void)
679 if (!_surf_init_status)
680 return; /* Not initialized yet. Nothing to do */
682 xbt_cfg_free(&_surf_cfg_set);
683 _surf_init_status = 0;
686 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
687 void surf_config_models_setup()
689 char *workstation_model_name;
690 int workstation_id = -1;
691 char *network_model_name = NULL;
692 char *cpu_model_name = NULL;
694 char *storage_model_name = NULL;
696 workstation_model_name =
697 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
698 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
699 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
700 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
702 /* Check whether we use a net/cpu model differing from the default ones, in which case
703 * we should switch to the "compound" workstation model to correctly dispatch stuff to
704 * the right net/cpu models.
707 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
708 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
709 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
711 const char *val = "compound";
713 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
714 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
715 workstation_model_name = (char *) "compound";
718 XBT_DEBUG("Workstation model: %s", workstation_model_name);
720 find_model_description(surf_workstation_model_description,
721 workstation_model_name);
722 if (!strcmp(workstation_model_name, "compound")) {
726 xbt_assert(cpu_model_name,
727 "Set a cpu model to use with the 'compound' workstation model");
729 xbt_assert(network_model_name,
730 "Set a network model to use with the 'compound' workstation model");
733 find_model_description(surf_network_model_description,
736 find_model_description(surf_cpu_model_description, cpu_model_name);
738 surf_cpu_model_description[cpu_id].model_init_preparse();
739 surf_network_model_description[network_id].model_init_preparse();
742 XBT_DEBUG("Call workstation_model_init");
743 surf_workstation_model_description[workstation_id].model_init_preparse();
745 XBT_DEBUG("Call storage_model_init");
746 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
747 surf_storage_model_description[storage_id].model_init_preparse();