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)
22 printf("Description of the logging output:\n"
23 "\n Threshold configuration: --log=CATEGORY_NAME.thres:PRIORITY_LEVEL\n"
24 " CATEGORY_NAME: defined in code with function 'XBT_LOG_NEW_CATEGORY'\n"
25 " PRIORITY_LEVEL: the level to print (trace,debug,verbose,info,warning,error,critical)\n"
26 " -> trace: enter and return of some functions\n"
27 " -> debug: crufty output\n"
28 " -> verbose: verbose output for the user wanting more\n"
29 " -> info: output about the regular functionning\n"
30 " -> warning: minor issue encountered\n"
31 " -> error: issue encountered\n"
32 " -> critical: major issue encountered\n"
33 "\n Format configuration: --log=CATEGORY_NAME.fmt:OPTIONS\n"
35 " -> %%%%: the %% char\n"
36 " -> %%n: platform-dependent line separator (LOG4J compatible)\n"
37 " -> %%e: plain old space (SimGrid extension)\n"
39 " -> %%m: user-provided message\n"
41 " -> %%c: Category name (LOG4J compatible)\n"
42 " -> %%p: Priority name (LOG4J compatible)\n"
44 " -> %%h: Hostname (SimGrid extension)\n"
45 " -> %%P: Process name (SimGrid extension)\n"
46 " -> %%t: Thread \"name\" (LOG4J compatible -- actually the address of the thread in memory)\n"
47 " -> %%i: Process PID (SimGrid extension -- this is a 'i' as in 'i'dea)\n"
49 " -> %%F: file name where the log event was raised (LOG4J compatible)\n"
50 " -> %%l: location where the log event was raised (LOG4J compatible, like '%%F:%%L' -- this is a l as in 'l'etter)\n"
51 " -> %%L: line number where the log event was raised (LOG4J compatible)\n"
52 " -> %%M: function name (LOG4J compatible -- called method name here of course).\n"
53 " Defined only when using gcc because there is no __FUNCTION__ elsewhere.\n"
55 " -> %%b: full backtrace (Called %%throwable in LOG4J). Defined only under windows or when using the GNU libc because\n"
56 " backtrace() is not defined elsewhere, and we only have a fallback for windows boxes, not mac ones for example.\n"
57 " -> %%B: short backtrace (only the first line of the %%b). Called %%throwable{short} in LOG4J; defined where %%b is.\n"
59 " -> %%d: date (UNIX-like epoch)\n"
60 " -> %%r: application age (time elapsed since the beginning of the application)\n");
63 /* Parse the command line, looking for options */
64 static void surf_config_cmd_line(int *argc, char **argv)
69 for (i = 1; i < *argc; i++) {
71 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
72 opt = strchr(argv[i], '=');
75 xbt_cfg_set_parse(_surf_cfg_set, opt);
76 XBT_DEBUG("Did apply '%s' as config setting", opt);
78 } else if (!strncmp(argv[i], "--cfg-help", strlen("--cfg-help") + 1) ||
79 !strncmp(argv[i], "--help", strlen("--help") + 1)) {
81 ("Description of the configuration accepted by this simulator:\n");
82 xbt_cfg_help(_surf_cfg_set);
83 printf("\nYou can also use --help-models to see the details of all models known by this simulator.\n");
85 printf("\nYou can also use --help-tracing to see the details of all tracing options known by this simulator.\n");
87 printf("\nYou can also use --help-logs to see the details of logging output.\n\n");
89 } else if (!strncmp(argv[i], "--help-models", strlen("--help-models") + 1)) {
90 model_help("workstation", surf_workstation_model_description);
92 model_help("CPU", surf_cpu_model_description);
94 model_help("network", surf_network_model_description);
95 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
96 for (i = 0; surf_optimization_mode_description[i].name; i++)
97 printf(" %s: %s\n", surf_optimization_mode_description[i].name, surf_optimization_mode_description[i].description);
98 printf("Both network and CPU models have 'Lazy' as default optimization level\n");
100 } else if (!strncmp(argv[i], "--help-logs", strlen("--help-logs") + 1)) {
104 } else if (!strncmp(argv[i], "--help-tracing", strlen("--help-tracing") + 1)) {
109 if (remove_it) { /*remove this from argv */
110 for (j = i + 1; j < *argc; j++) {
111 argv[j - 1] = argv[j];
116 i--; /* compensate effect of next loop incrementation */
122 int _surf_init_status = 0; /* 0: beginning of time;
123 1: pre-inited (cfg_set created);
124 2: inited (running) */
126 /* callback of the workstation/model variable */
127 static void _surf_cfg_cb__workstation_model(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("workstation", surf_workstation_model_description);
141 /* Make sure that the model exists */
142 find_model_description(surf_workstation_model_description, val);
145 /* callback of the cpu/model variable */
146 static void _surf_cfg_cb__cpu_model(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("CPU", surf_cpu_model_description);
160 /* New Module missing */
161 find_model_description(surf_cpu_model_description, val);
164 /* callback of the cpu/model variable */
165 static void _surf_cfg_cb__optimization_mode(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("optimization", surf_optimization_mode_description);
179 /* New Module missing */
180 find_model_description(surf_optimization_mode_description, val);
183 /* callback of the cpu/model variable */
184 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
188 xbt_assert(_surf_init_status < 2,
189 "Cannot change the model after the initialization");
191 val = xbt_cfg_get_string(_surf_cfg_set, name);
193 if (!strcmp(val, "help")) {
194 model_help("storage", surf_storage_model_description);
198 /* New Module missing */
199 find_model_description(surf_storage_model_description, val);
202 /* callback of the workstation_model variable */
203 static void _surf_cfg_cb__network_model(const char *name, int pos)
207 xbt_assert(_surf_init_status < 2,
208 "Cannot change the model after the initialization");
210 val = xbt_cfg_get_string(_surf_cfg_set, name);
212 if (!strcmp(val, "help")) {
213 model_help("network", surf_network_model_description);
217 /* New Module missing */
218 find_model_description(surf_network_model_description, val);
222 /* callbacks of the network models values */
223 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
225 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
228 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
230 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
233 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
235 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
238 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
240 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
243 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
245 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
248 static void _surf_cfg_cb__weight_S(const char *name, int pos)
250 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
253 /* callback of the inclusion path */
254 static void _surf_cfg_cb__surf_path(const char *name, int pos)
256 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
257 xbt_dynar_push(surf_path, &path);
260 /* callback to decide if we want to use the model-checking */
261 #include "xbt_modinter.h"
262 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
264 static void _surf_cfg_cb_model_check(const char *name, int pos)
266 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
268 if (_surf_do_model_check) {
269 /* Tell modules using mallocators that they shouldn't. MC don't like them */
275 extern int _surf_do_verbose_exit;
277 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
279 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
283 static void _surf_cfg_cb_context_factory(const char *name, int pos)
285 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
288 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
290 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
293 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
295 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
298 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
300 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
303 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
305 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
306 if (!strcmp(mode_name, "posix")) {
307 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
309 else if (!strcmp(mode_name, "futex")) {
310 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
312 else if (!strcmp(mode_name, "busy_wait")) {
313 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
316 xbt_die("Command line setting of the parallel synchronization mode should "
317 "be one of \"posix\", \"futex\" or \"busy_wait\"");
321 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
323 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
326 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
329 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
330 if (!strcmp(val, "yes")) {
331 if (!COORD_HOST_LEVEL) {
332 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
333 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
335 } else if (!strcmp(val, "no")) {
336 if (COORD_HOST_LEVEL)
337 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
339 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
343 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
346 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
350 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
352 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
355 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
357 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
361 /* create the config set, register what should be and parse the command line*/
362 void surf_config_init(int *argc, char **argv)
364 char *description = xbt_malloc(1024), *p = description;
366 double double_default_value;
367 int default_value_int;
370 /* Create the configuration support */
371 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
372 _surf_init_status = 1;
375 "The model to use for the CPU. Possible values: ");
377 while (*(++p) != '\0');
378 for (i = 0; surf_cpu_model_description[i].name; i++)
379 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
380 surf_cpu_model_description[i].name);
382 ".\n (use 'help' as a value to see the long description of each model)");
383 default_value = xbt_strdup("Cas01");
384 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
385 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
388 "The optimization modes to use for the CPU. Possible values: ");
390 while (*(++p) != '\0');
391 for (i = 0; surf_optimization_mode_description[i].name; i++)
392 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
393 surf_optimization_mode_description[i].name);
395 ".\n (use 'help' as a value to see the long description of each optimization mode)");
396 default_value = xbt_strdup("Lazy");
397 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
398 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
401 "The model to use for the storage. Possible values: ");
403 while (*(++p) != '\0');
404 for (i = 0; surf_storage_model_description[i].name; i++)
405 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
406 surf_storage_model_description[i].name);
408 ".\n (use 'help' as a value to see the long description of each model)");
409 default_value = xbt_strdup("default");
410 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
411 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
415 "The model to use for the network. Possible values: ");
417 while (*(++p) != '\0');
418 for (i = 0; surf_network_model_description[i].name; i++)
419 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
420 surf_network_model_description[i].name);
422 ".\n (use 'help' as a value to see the long description of each model)");
423 default_value = xbt_strdup("LV08");
424 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
425 &default_value, 1, 1, &_surf_cfg_cb__network_model,
429 "The optimization modes to use for the network. Possible values: ");
431 while (*(++p) != '\0');
432 for (i = 0; surf_optimization_mode_description[i].name; i++)
433 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
434 surf_optimization_mode_description[i].name);
436 ".\n (use 'help' as a value to see the long description of each optimization mode)");
437 default_value = xbt_strdup("Lazy");
438 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
439 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
442 "The model to use for the workstation. Possible values: ");
444 while (*(++p) != '\0');
445 for (i = 0; surf_workstation_model_description[i].name; i++)
446 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
447 surf_workstation_model_description[i].name);
449 ".\n (use 'help' as a value to see the long description of each model)");
450 default_value = xbt_strdup("default");
451 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
452 &default_value, 1, 1,
453 &_surf_cfg_cb__workstation_model, NULL);
455 xbt_free(description);
457 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
458 "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)",
459 xbt_cfgelm_double, NULL, 1, 1,
460 _surf_cfg_cb__tcp_gamma, NULL);
461 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
463 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
464 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
465 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
466 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
468 /* The parameters of network models */
470 double_default_value = 0.0;
471 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
472 "Minimum gap between two overlapping sends",
473 xbt_cfgelm_double, &double_default_value, 1, 1,
474 _surf_cfg_cb__sender_gap, NULL);
476 double_default_value = 1.0;
477 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
478 "Correction factor to apply to the provided latency (default value set by network model)",
479 xbt_cfgelm_double, &double_default_value, 1, 1,
480 _surf_cfg_cb__latency_factor, NULL);
481 double_default_value = 1.0;
482 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
483 "Correction factor to apply to the provided bandwidth (default value set by network model)",
484 xbt_cfgelm_double, &double_default_value, 1, 1,
485 _surf_cfg_cb__bandwidth_factor, NULL);
486 double_default_value = 0.0;
487 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
488 "Correction factor to apply to the weight of competing streams(default value set by network model)",
489 xbt_cfgelm_double, &double_default_value, 1, 1,
490 _surf_cfg_cb__weight_S, NULL);
493 xbt_cfg_register(&_surf_cfg_set, "path",
494 "Lookup path for inclusions in platform and deployment XML files",
495 xbt_cfgelm_string, NULL, 0, 0,
496 _surf_cfg_cb__surf_path, NULL);
498 default_value_int = 0;
499 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
500 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
501 xbt_cfgelm_int, &default_value_int, 0, 1,
503 default_value_int = 0;
504 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
505 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
506 xbt_cfgelm_int, &default_value_int, 0, 1,
510 default_value_int = 0;
511 xbt_cfg_register(&_surf_cfg_set, "model-check",
512 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
513 xbt_cfgelm_int, &default_value_int, 0, 1,
514 _surf_cfg_cb_model_check, NULL);
517 FIXME: this function is not setting model-check to it's default value because
518 internally it calls to variable->cb_set that in this case is the function
519 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
520 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
522 /* do verbose-exit */
523 default_value_int = 1;
524 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
525 "Activate the \"do nothing\" mode in Ctrl-C",
526 xbt_cfgelm_int, &default_value_int, 0, 1,
527 _surf_cfg_cb_verbose_exit, NULL);
530 /* context factory */
531 default_value = xbt_strdup("ucontext");
532 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
533 "Context factory to use in SIMIX (ucontext, thread or raw)",
534 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
536 /* stack size of contexts in Ko */
537 default_value_int = 128;
538 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
539 "Stack size of contexts in Kib (ucontext or raw only)",
540 xbt_cfgelm_int, &default_value_int, 1, 1,
541 _surf_cfg_cb_context_stack_size, NULL);
543 /* number of parallel threads for user processes */
544 default_value_int = 1;
545 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
546 "Number of parallel threads used to execute user contexts",
547 xbt_cfgelm_int, &default_value_int, 1, 1,
548 _surf_cfg_cb_contexts_nthreads, NULL);
550 /* minimal number of user contexts to be run in parallel */
551 default_value_int = 2;
552 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
553 "Minimal number of user contexts to be run in parallel (raw contexts only)",
554 xbt_cfgelm_int, &default_value_int, 1, 1,
555 _surf_cfg_cb_contexts_parallel_threshold, NULL);
557 /* synchronization mode for parallel user contexts */
559 default_value = xbt_strdup("futex");
560 #else //No futex on mac and posix is unimplememted yet
561 default_value = xbt_strdup("busy_wait");
563 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
564 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
565 xbt_cfgelm_string, &default_value, 1, 1,
566 _surf_cfg_cb_contexts_parallel_mode, NULL);
568 /* number of parallel threads for Surf */
569 default_value_int = surf_get_nthreads();
570 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
571 "Number of parallel threads used to update Surf models",
572 xbt_cfgelm_int, &default_value_int, 1, 1,
573 _surf_cfg_cb_surf_nthreads, NULL);
575 default_value = xbt_strdup("no");
576 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
577 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
578 xbt_cfgelm_string, &default_value, 1, 1,
579 _surf_cfg_cb__surf_network_coordinates, NULL);
580 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
582 default_value_int = 0;
583 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
584 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
585 xbt_cfgelm_int, &default_value_int, 0, 1,
586 _surf_cfg_cb__surf_network_crosstraffic, NULL);
587 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
590 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
591 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
592 xbt_cfgelm_double, NULL, 1, 1,
593 _surf_cfg_cb__gtnets_jitter, NULL);
594 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
596 default_value_int = 10;
597 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
598 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
599 xbt_cfgelm_int, &default_value_int, 0, 1,
600 _surf_cfg_cb__gtnets_jitter_seed, NULL);
603 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
604 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
605 xbt_cfgelm_string, NULL, 1, 1,
607 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
611 double default_reference_speed = 20000.0;
612 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
613 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
614 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
617 int default_display_timing = 0;
618 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
619 "Boolean indicating whether we should display the timing after simulation.",
620 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
623 double default_threshold = 1e-6;
624 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
625 "Minimal computation time (in seconds) not discarded.",
626 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
629 //For smpi/bw_factor and smpi/lat_factor
630 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
631 //test is if( size >= thresholdN ) return valueN;
632 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
633 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
634 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
635 "Bandwidth factors for smpi.",
636 xbt_cfgelm_string, NULL, 1, 1, NULL,
638 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");
640 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
641 "Latency factors for smpi.",
642 xbt_cfgelm_string, NULL, 1, 1, NULL,
644 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");
649 /* retrieves the current directory of the current process */
650 const char *initial_path = __surf_get_initial_path();
651 xbt_assert((initial_path),
652 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
654 surf_path = xbt_dynar_new(sizeof(char *), NULL);
655 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
659 surf_config_cmd_line(argc, argv);
661 XBT_WARN("Call to surf_config_init() after initialization ignored");
665 void surf_config_finalize(void)
667 if (!_surf_init_status)
668 return; /* Not initialized yet. Nothing to do */
670 xbt_cfg_free(&_surf_cfg_set);
671 _surf_init_status = 0;
674 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
675 void surf_config_models_setup()
677 char *workstation_model_name;
678 int workstation_id = -1;
679 char *network_model_name = NULL;
680 char *cpu_model_name = NULL;
682 char *storage_model_name = NULL;
684 workstation_model_name =
685 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
686 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
687 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
688 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
690 /* Check whether we use a net/cpu model differing from the default ones, in which case
691 * we should switch to the "compound" workstation model to correctly dispatch stuff to
692 * the right net/cpu models.
695 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
696 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
697 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
699 const char *val = "compound";
701 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
702 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
703 workstation_model_name = (char *) "compound";
706 XBT_DEBUG("Workstation model: %s", workstation_model_name);
708 find_model_description(surf_workstation_model_description,
709 workstation_model_name);
710 if (!strcmp(workstation_model_name, "compound")) {
714 xbt_assert(cpu_model_name,
715 "Set a cpu model to use with the 'compound' workstation model");
717 xbt_assert(network_model_name,
718 "Set a network model to use with the 'compound' workstation model");
721 find_model_description(surf_network_model_description,
724 find_model_description(surf_cpu_model_description, cpu_model_name);
726 surf_cpu_model_description[cpu_id].model_init_preparse();
727 surf_network_model_description[network_id].model_init_preparse();
730 XBT_DEBUG("Call workstation_model_init");
731 surf_workstation_model_description[workstation_id].model_init_preparse();
733 XBT_DEBUG("Call storage_model_init");
734 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
735 surf_storage_model_description[storage_id].model_init_preparse();