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"
67 /* Parse the command line, looking for options */
68 static void surf_config_cmd_line(int *argc, char **argv)
74 for (j = i = 1; i < *argc; i++) {
75 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
76 opt = strchr(argv[i], '=');
79 xbt_cfg_set_parse(_surf_cfg_set, opt);
80 XBT_DEBUG("Did apply '%s' as config setting", opt);
81 } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
83 ("Description of the configuration accepted by this simulator:\n");
84 xbt_cfg_help(_surf_cfg_set);
87 "You can also use --help-models to see the details of all models known by this simulator.\n"
90 "You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
93 "You can also use --help-logs to see the details of logging output.\n"
97 } else if (!strcmp(argv[i], "--help-models")) {
100 model_help("workstation", surf_workstation_model_description);
102 model_help("CPU", surf_cpu_model_description);
104 model_help("network", surf_network_model_description);
105 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
106 for (k = 0; surf_optimization_mode_description[k].name; k++)
108 surf_optimization_mode_description[k].name,
109 surf_optimization_mode_description[k].description);
110 printf("Both network and CPU models have 'Lazy' as default optimization level\n");
112 } else if (!strcmp(argv[i], "--help-logs")) {
116 } else if (!strcmp(argv[i], "--help-tracing")) {
133 int _surf_init_status = 0; /* 0: beginning of time;
134 1: pre-inited (cfg_set created);
135 2: inited (running) */
137 /* callback of the workstation/model variable */
138 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
142 xbt_assert(_surf_init_status < 2,
143 "Cannot change the model after the initialization");
145 val = xbt_cfg_get_string(_surf_cfg_set, name);
147 if (!strcmp(val, "help")) {
148 model_help("workstation", surf_workstation_model_description);
152 /* Make sure that the model exists */
153 find_model_description(surf_workstation_model_description, val);
156 /* callback of the cpu/model variable */
157 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
161 xbt_assert(_surf_init_status < 2,
162 "Cannot change the model after the initialization");
164 val = xbt_cfg_get_string(_surf_cfg_set, name);
166 if (!strcmp(val, "help")) {
167 model_help("CPU", surf_cpu_model_description);
171 /* New Module missing */
172 find_model_description(surf_cpu_model_description, val);
175 /* callback of the cpu/model variable */
176 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
180 xbt_assert(_surf_init_status < 2,
181 "Cannot change the model after the initialization");
183 val = xbt_cfg_get_string(_surf_cfg_set, name);
185 if (!strcmp(val, "help")) {
186 model_help("optimization", surf_optimization_mode_description);
190 /* New Module missing */
191 find_model_description(surf_optimization_mode_description, val);
194 /* callback of the cpu/model variable */
195 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
199 xbt_assert(_surf_init_status < 2,
200 "Cannot change the model after the initialization");
202 val = xbt_cfg_get_string(_surf_cfg_set, name);
204 if (!strcmp(val, "help")) {
205 model_help("storage", surf_storage_model_description);
209 /* New Module missing */
210 find_model_description(surf_storage_model_description, val);
213 /* callback of the workstation_model variable */
214 static void _surf_cfg_cb__network_model(const char *name, int pos)
218 xbt_assert(_surf_init_status < 2,
219 "Cannot change the model after the initialization");
221 val = xbt_cfg_get_string(_surf_cfg_set, name);
223 if (!strcmp(val, "help")) {
224 model_help("network", surf_network_model_description);
228 /* New Module missing */
229 find_model_description(surf_network_model_description, val);
233 /* callbacks of the network models values */
234 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
236 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
239 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
241 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
244 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
246 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
249 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
251 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
254 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
256 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
259 static void _surf_cfg_cb__weight_S(const char *name, int pos)
261 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
264 /* callback of the inclusion path */
265 static void _surf_cfg_cb__surf_path(const char *name, int pos)
267 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
268 xbt_dynar_push(surf_path, &path);
271 /* callback to decide if we want to use the model-checking */
272 #include "xbt_modinter.h"
273 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
275 static void _surf_cfg_cb_model_check(const char *name, int pos)
277 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
279 if (_surf_do_model_check) {
280 /* Tell modules using mallocators that they shouldn't. MC don't like them */
286 extern int _surf_do_verbose_exit;
288 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
290 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
294 static void _surf_cfg_cb_context_factory(const char *name, int pos)
296 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
299 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
301 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
304 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
306 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
309 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
311 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
314 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
316 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
317 if (!strcmp(mode_name, "posix")) {
318 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
320 else if (!strcmp(mode_name, "futex")) {
321 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
323 else if (!strcmp(mode_name, "busy_wait")) {
324 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
327 xbt_die("Command line setting of the parallel synchronization mode should "
328 "be one of \"posix\", \"futex\" or \"busy_wait\"");
332 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
334 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
337 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
340 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
341 if (!strcmp(val, "yes")) {
342 if (!COORD_HOST_LEVEL) {
343 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
344 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
346 } else if (!strcmp(val, "no")) {
347 if (COORD_HOST_LEVEL)
348 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
350 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
354 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
357 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
361 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
363 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
366 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
368 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
372 /* create the config set, register what should be and parse the command line*/
373 void surf_config_init(int *argc, char **argv)
375 char *description = xbt_malloc(1024), *p = description;
377 double double_default_value;
378 int default_value_int;
381 /* Create the configuration support */
382 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
383 _surf_init_status = 1;
386 "The model to use for the CPU. Possible values: ");
388 while (*(++p) != '\0');
389 for (i = 0; surf_cpu_model_description[i].name; i++)
390 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
391 surf_cpu_model_description[i].name);
393 ".\n (use 'help' as a value to see the long description of each model)");
394 default_value = xbt_strdup("Cas01");
395 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
396 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
399 "The optimization modes to use for the CPU. Possible values: ");
401 while (*(++p) != '\0');
402 for (i = 0; surf_optimization_mode_description[i].name; i++)
403 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
404 surf_optimization_mode_description[i].name);
406 ".\n (use 'help' as a value to see the long description of each optimization mode)");
407 default_value = xbt_strdup("Lazy");
408 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
409 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
412 "The model to use for the storage. Possible values: ");
414 while (*(++p) != '\0');
415 for (i = 0; surf_storage_model_description[i].name; i++)
416 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
417 surf_storage_model_description[i].name);
419 ".\n (use 'help' as a value to see the long description of each model)");
420 default_value = xbt_strdup("default");
421 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
422 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
426 "The model to use for the network. Possible values: ");
428 while (*(++p) != '\0');
429 for (i = 0; surf_network_model_description[i].name; i++)
430 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
431 surf_network_model_description[i].name);
433 ".\n (use 'help' as a value to see the long description of each model)");
434 default_value = xbt_strdup("LV08");
435 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
436 &default_value, 1, 1, &_surf_cfg_cb__network_model,
440 "The optimization modes to use for the network. Possible values: ");
442 while (*(++p) != '\0');
443 for (i = 0; surf_optimization_mode_description[i].name; i++)
444 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
445 surf_optimization_mode_description[i].name);
447 ".\n (use 'help' as a value to see the long description of each optimization mode)");
448 default_value = xbt_strdup("Lazy");
449 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
450 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
453 "The model to use for the workstation. Possible values: ");
455 while (*(++p) != '\0');
456 for (i = 0; surf_workstation_model_description[i].name; i++)
457 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
458 surf_workstation_model_description[i].name);
460 ".\n (use 'help' as a value to see the long description of each model)");
461 default_value = xbt_strdup("default");
462 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
463 &default_value, 1, 1,
464 &_surf_cfg_cb__workstation_model, NULL);
466 xbt_free(description);
468 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
469 "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)",
470 xbt_cfgelm_double, NULL, 1, 1,
471 _surf_cfg_cb__tcp_gamma, NULL);
472 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
474 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
475 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
476 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
477 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
479 /* The parameters of network models */
481 double_default_value = 0.0;
482 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
483 "Minimum gap between two overlapping sends",
484 xbt_cfgelm_double, &double_default_value, 1, 1,
485 _surf_cfg_cb__sender_gap, NULL);
487 double_default_value = 1.0;
488 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
489 "Correction factor to apply to the provided latency (default value set by network model)",
490 xbt_cfgelm_double, &double_default_value, 1, 1,
491 _surf_cfg_cb__latency_factor, NULL);
492 double_default_value = 1.0;
493 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
494 "Correction factor to apply to the provided bandwidth (default value set by network model)",
495 xbt_cfgelm_double, &double_default_value, 1, 1,
496 _surf_cfg_cb__bandwidth_factor, NULL);
497 double_default_value = 0.0;
498 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
499 "Correction factor to apply to the weight of competing streams(default value set by network model)",
500 xbt_cfgelm_double, &double_default_value, 1, 1,
501 _surf_cfg_cb__weight_S, NULL);
504 xbt_cfg_register(&_surf_cfg_set, "path",
505 "Lookup path for inclusions in platform and deployment XML files",
506 xbt_cfgelm_string, NULL, 0, 0,
507 _surf_cfg_cb__surf_path, NULL);
509 default_value_int = 0;
510 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
511 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
512 xbt_cfgelm_int, &default_value_int, 0, 1,
514 default_value_int = 0;
515 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
516 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
517 xbt_cfgelm_int, &default_value_int, 0, 1,
521 default_value_int = 0;
522 xbt_cfg_register(&_surf_cfg_set, "model-check",
523 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
524 xbt_cfgelm_int, &default_value_int, 0, 1,
525 _surf_cfg_cb_model_check, NULL);
528 FIXME: this function is not setting model-check to it's default value because
529 internally it calls to variable->cb_set that in this case is the function
530 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
531 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
533 /* do verbose-exit */
534 default_value_int = 1;
535 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
536 "Activate the \"do nothing\" mode in Ctrl-C",
537 xbt_cfgelm_int, &default_value_int, 0, 1,
538 _surf_cfg_cb_verbose_exit, NULL);
541 /* context factory */
542 default_value = xbt_strdup("ucontext");
543 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
544 "Context factory to use in SIMIX (ucontext, thread or raw)",
545 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
547 /* stack size of contexts in Ko */
548 default_value_int = 128;
549 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
550 "Stack size of contexts in Kib (ucontext or raw only)",
551 xbt_cfgelm_int, &default_value_int, 1, 1,
552 _surf_cfg_cb_context_stack_size, NULL);
554 /* number of parallel threads for user processes */
555 default_value_int = 1;
556 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
557 "Number of parallel threads used to execute user contexts",
558 xbt_cfgelm_int, &default_value_int, 1, 1,
559 _surf_cfg_cb_contexts_nthreads, NULL);
561 /* minimal number of user contexts to be run in parallel */
562 default_value_int = 2;
563 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
564 "Minimal number of user contexts to be run in parallel (raw contexts only)",
565 xbt_cfgelm_int, &default_value_int, 1, 1,
566 _surf_cfg_cb_contexts_parallel_threshold, NULL);
568 /* synchronization mode for parallel user contexts */
570 default_value = xbt_strdup("futex");
571 #else //No futex on mac and posix is unimplememted yet
572 default_value = xbt_strdup("busy_wait");
574 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
575 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
576 xbt_cfgelm_string, &default_value, 1, 1,
577 _surf_cfg_cb_contexts_parallel_mode, NULL);
579 /* number of parallel threads for Surf */
580 default_value_int = surf_get_nthreads();
581 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
582 "Number of parallel threads used to update Surf models",
583 xbt_cfgelm_int, &default_value_int, 1, 1,
584 _surf_cfg_cb_surf_nthreads, NULL);
586 default_value = xbt_strdup("no");
587 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
588 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
589 xbt_cfgelm_string, &default_value, 1, 1,
590 _surf_cfg_cb__surf_network_coordinates, NULL);
591 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
593 default_value_int = 0;
594 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
595 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
596 xbt_cfgelm_int, &default_value_int, 0, 1,
597 _surf_cfg_cb__surf_network_crosstraffic, NULL);
598 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
601 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
602 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
603 xbt_cfgelm_double, NULL, 1, 1,
604 _surf_cfg_cb__gtnets_jitter, NULL);
605 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
607 default_value_int = 10;
608 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
609 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
610 xbt_cfgelm_int, &default_value_int, 0, 1,
611 _surf_cfg_cb__gtnets_jitter_seed, NULL);
614 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
615 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
616 xbt_cfgelm_string, NULL, 1, 1,
618 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
622 double default_reference_speed = 20000.0;
623 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
624 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
625 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
628 int default_display_timing = 0;
629 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
630 "Boolean indicating whether we should display the timing after simulation.",
631 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
634 double default_threshold = 1e-6;
635 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
636 "Minimal computation time (in seconds) not discarded.",
637 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
640 //For smpi/bw_factor and smpi/lat_factor
641 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
642 //test is if( size >= thresholdN ) return valueN;
643 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
644 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
645 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
646 "Bandwidth factors for smpi.",
647 xbt_cfgelm_string, NULL, 1, 1, NULL,
649 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");
651 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
652 "Latency factors for smpi.",
653 xbt_cfgelm_string, NULL, 1, 1, NULL,
655 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");
660 /* retrieves the current directory of the current process */
661 const char *initial_path = __surf_get_initial_path();
662 xbt_assert((initial_path),
663 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
665 surf_path = xbt_dynar_new(sizeof(char *), NULL);
666 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
670 surf_config_cmd_line(argc, argv);
672 XBT_WARN("Call to surf_config_init() after initialization ignored");
676 void surf_config_finalize(void)
678 if (!_surf_init_status)
679 return; /* Not initialized yet. Nothing to do */
681 xbt_cfg_free(&_surf_cfg_set);
682 _surf_init_status = 0;
685 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
686 void surf_config_models_setup()
688 char *workstation_model_name;
689 int workstation_id = -1;
690 char *network_model_name = NULL;
691 char *cpu_model_name = NULL;
693 char *storage_model_name = NULL;
695 workstation_model_name =
696 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
697 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
698 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
699 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
701 /* Check whether we use a net/cpu model differing from the default ones, in which case
702 * we should switch to the "compound" workstation model to correctly dispatch stuff to
703 * the right net/cpu models.
706 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
707 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
708 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
710 const char *val = "compound";
712 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
713 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
714 workstation_model_name = (char *) "compound";
717 XBT_DEBUG("Workstation model: %s", workstation_model_name);
719 find_model_description(surf_workstation_model_description,
720 workstation_model_name);
721 if (!strcmp(workstation_model_name, "compound")) {
725 xbt_assert(cpu_model_name,
726 "Set a cpu model to use with the 'compound' workstation model");
728 xbt_assert(network_model_name,
729 "Set a network model to use with the 'compound' workstation model");
732 find_model_description(surf_network_model_description,
735 find_model_description(surf_cpu_model_description, cpu_model_name);
737 surf_cpu_model_description[cpu_id].model_init_preparse();
738 surf_network_model_description[network_id].model_init_preparse();
741 XBT_DEBUG("Call workstation_model_init");
742 surf_workstation_model_description[workstation_id].model_init_preparse();
744 XBT_DEBUG("Call storage_model_init");
745 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
746 surf_storage_model_description[storage_id].model_init_preparse();