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")) {
98 model_help("workstation", surf_workstation_model_description);
100 model_help("CPU", surf_cpu_model_description);
102 model_help("network", surf_network_model_description);
103 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
104 for (i = 0; surf_optimization_mode_description[i].name; i++)
105 printf(" %s: %s\n", surf_optimization_mode_description[i].name, surf_optimization_mode_description[i].description);
106 printf("Both network and CPU models have 'Lazy' as default optimization level\n");
108 } else if (!strcmp(argv[i], "--help-logs")) {
112 } else if (!strcmp(argv[i], "--help-tracing")) {
129 int _surf_init_status = 0; /* 0: beginning of time;
130 1: pre-inited (cfg_set created);
131 2: inited (running) */
133 /* callback of the workstation/model variable */
134 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
138 xbt_assert(_surf_init_status < 2,
139 "Cannot change the model after the initialization");
141 val = xbt_cfg_get_string(_surf_cfg_set, name);
143 if (!strcmp(val, "help")) {
144 model_help("workstation", surf_workstation_model_description);
148 /* Make sure that the model exists */
149 find_model_description(surf_workstation_model_description, val);
152 /* callback of the cpu/model variable */
153 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
157 xbt_assert(_surf_init_status < 2,
158 "Cannot change the model after the initialization");
160 val = xbt_cfg_get_string(_surf_cfg_set, name);
162 if (!strcmp(val, "help")) {
163 model_help("CPU", surf_cpu_model_description);
167 /* New Module missing */
168 find_model_description(surf_cpu_model_description, val);
171 /* callback of the cpu/model variable */
172 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
176 xbt_assert(_surf_init_status < 2,
177 "Cannot change the model after the initialization");
179 val = xbt_cfg_get_string(_surf_cfg_set, name);
181 if (!strcmp(val, "help")) {
182 model_help("optimization", surf_optimization_mode_description);
186 /* New Module missing */
187 find_model_description(surf_optimization_mode_description, val);
190 /* callback of the cpu/model variable */
191 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
195 xbt_assert(_surf_init_status < 2,
196 "Cannot change the model after the initialization");
198 val = xbt_cfg_get_string(_surf_cfg_set, name);
200 if (!strcmp(val, "help")) {
201 model_help("storage", surf_storage_model_description);
205 /* New Module missing */
206 find_model_description(surf_storage_model_description, val);
209 /* callback of the workstation_model variable */
210 static void _surf_cfg_cb__network_model(const char *name, int pos)
214 xbt_assert(_surf_init_status < 2,
215 "Cannot change the model after the initialization");
217 val = xbt_cfg_get_string(_surf_cfg_set, name);
219 if (!strcmp(val, "help")) {
220 model_help("network", surf_network_model_description);
224 /* New Module missing */
225 find_model_description(surf_network_model_description, val);
229 /* callbacks of the network models values */
230 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
232 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
235 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
237 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
240 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
242 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
245 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
247 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
250 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
252 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
255 static void _surf_cfg_cb__weight_S(const char *name, int pos)
257 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
260 /* callback of the inclusion path */
261 static void _surf_cfg_cb__surf_path(const char *name, int pos)
263 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
264 xbt_dynar_push(surf_path, &path);
267 /* callback to decide if we want to use the model-checking */
268 #include "xbt_modinter.h"
269 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
271 static void _surf_cfg_cb_model_check(const char *name, int pos)
273 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
275 if (_surf_do_model_check) {
276 /* Tell modules using mallocators that they shouldn't. MC don't like them */
282 extern int _surf_do_verbose_exit;
284 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
286 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
290 static void _surf_cfg_cb_context_factory(const char *name, int pos)
292 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
295 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
297 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
300 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
302 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
305 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
307 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
310 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
312 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
313 if (!strcmp(mode_name, "posix")) {
314 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
316 else if (!strcmp(mode_name, "futex")) {
317 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
319 else if (!strcmp(mode_name, "busy_wait")) {
320 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
323 xbt_die("Command line setting of the parallel synchronization mode should "
324 "be one of \"posix\", \"futex\" or \"busy_wait\"");
328 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
330 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
333 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
336 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
337 if (!strcmp(val, "yes")) {
338 if (!COORD_HOST_LEVEL) {
339 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
340 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
342 } else if (!strcmp(val, "no")) {
343 if (COORD_HOST_LEVEL)
344 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
346 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
350 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
353 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
357 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
359 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
362 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
364 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
368 /* create the config set, register what should be and parse the command line*/
369 void surf_config_init(int *argc, char **argv)
371 char *description = xbt_malloc(1024), *p = description;
373 double double_default_value;
374 int default_value_int;
377 /* Create the configuration support */
378 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
379 _surf_init_status = 1;
382 "The model to use for the CPU. Possible values: ");
384 while (*(++p) != '\0');
385 for (i = 0; surf_cpu_model_description[i].name; i++)
386 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
387 surf_cpu_model_description[i].name);
389 ".\n (use 'help' as a value to see the long description of each model)");
390 default_value = xbt_strdup("Cas01");
391 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
392 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
395 "The optimization modes to use for the CPU. Possible values: ");
397 while (*(++p) != '\0');
398 for (i = 0; surf_optimization_mode_description[i].name; i++)
399 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
400 surf_optimization_mode_description[i].name);
402 ".\n (use 'help' as a value to see the long description of each optimization mode)");
403 default_value = xbt_strdup("Lazy");
404 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
405 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
408 "The model to use for the storage. Possible values: ");
410 while (*(++p) != '\0');
411 for (i = 0; surf_storage_model_description[i].name; i++)
412 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
413 surf_storage_model_description[i].name);
415 ".\n (use 'help' as a value to see the long description of each model)");
416 default_value = xbt_strdup("default");
417 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
418 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
422 "The model to use for the network. Possible values: ");
424 while (*(++p) != '\0');
425 for (i = 0; surf_network_model_description[i].name; i++)
426 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
427 surf_network_model_description[i].name);
429 ".\n (use 'help' as a value to see the long description of each model)");
430 default_value = xbt_strdup("LV08");
431 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
432 &default_value, 1, 1, &_surf_cfg_cb__network_model,
436 "The optimization modes to use for the network. Possible values: ");
438 while (*(++p) != '\0');
439 for (i = 0; surf_optimization_mode_description[i].name; i++)
440 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
441 surf_optimization_mode_description[i].name);
443 ".\n (use 'help' as a value to see the long description of each optimization mode)");
444 default_value = xbt_strdup("Lazy");
445 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
446 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
449 "The model to use for the workstation. Possible values: ");
451 while (*(++p) != '\0');
452 for (i = 0; surf_workstation_model_description[i].name; i++)
453 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
454 surf_workstation_model_description[i].name);
456 ".\n (use 'help' as a value to see the long description of each model)");
457 default_value = xbt_strdup("default");
458 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
459 &default_value, 1, 1,
460 &_surf_cfg_cb__workstation_model, NULL);
462 xbt_free(description);
464 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
465 "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)",
466 xbt_cfgelm_double, NULL, 1, 1,
467 _surf_cfg_cb__tcp_gamma, NULL);
468 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
470 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
471 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
472 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
473 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
475 /* The parameters of network models */
477 double_default_value = 0.0;
478 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
479 "Minimum gap between two overlapping sends",
480 xbt_cfgelm_double, &double_default_value, 1, 1,
481 _surf_cfg_cb__sender_gap, NULL);
483 double_default_value = 1.0;
484 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
485 "Correction factor to apply to the provided latency (default value set by network model)",
486 xbt_cfgelm_double, &double_default_value, 1, 1,
487 _surf_cfg_cb__latency_factor, NULL);
488 double_default_value = 1.0;
489 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
490 "Correction factor to apply to the provided bandwidth (default value set by network model)",
491 xbt_cfgelm_double, &double_default_value, 1, 1,
492 _surf_cfg_cb__bandwidth_factor, NULL);
493 double_default_value = 0.0;
494 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
495 "Correction factor to apply to the weight of competing streams(default value set by network model)",
496 xbt_cfgelm_double, &double_default_value, 1, 1,
497 _surf_cfg_cb__weight_S, NULL);
500 xbt_cfg_register(&_surf_cfg_set, "path",
501 "Lookup path for inclusions in platform and deployment XML files",
502 xbt_cfgelm_string, NULL, 0, 0,
503 _surf_cfg_cb__surf_path, NULL);
505 default_value_int = 0;
506 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
507 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
508 xbt_cfgelm_int, &default_value_int, 0, 1,
510 default_value_int = 0;
511 xbt_cfg_register(&_surf_cfg_set, "network/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,
517 default_value_int = 0;
518 xbt_cfg_register(&_surf_cfg_set, "model-check",
519 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
520 xbt_cfgelm_int, &default_value_int, 0, 1,
521 _surf_cfg_cb_model_check, NULL);
524 FIXME: this function is not setting model-check to it's default value because
525 internally it calls to variable->cb_set that in this case is the function
526 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
527 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
529 /* do verbose-exit */
530 default_value_int = 1;
531 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
532 "Activate the \"do nothing\" mode in Ctrl-C",
533 xbt_cfgelm_int, &default_value_int, 0, 1,
534 _surf_cfg_cb_verbose_exit, NULL);
537 /* context factory */
538 default_value = xbt_strdup("ucontext");
539 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
540 "Context factory to use in SIMIX (ucontext, thread or raw)",
541 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
543 /* stack size of contexts in Ko */
544 default_value_int = 128;
545 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
546 "Stack size of contexts in Kib (ucontext or raw only)",
547 xbt_cfgelm_int, &default_value_int, 1, 1,
548 _surf_cfg_cb_context_stack_size, NULL);
550 /* number of parallel threads for user processes */
551 default_value_int = 1;
552 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
553 "Number of parallel threads used to execute user contexts",
554 xbt_cfgelm_int, &default_value_int, 1, 1,
555 _surf_cfg_cb_contexts_nthreads, NULL);
557 /* minimal number of user contexts to be run in parallel */
558 default_value_int = 2;
559 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
560 "Minimal number of user contexts to be run in parallel (raw contexts only)",
561 xbt_cfgelm_int, &default_value_int, 1, 1,
562 _surf_cfg_cb_contexts_parallel_threshold, NULL);
564 /* synchronization mode for parallel user contexts */
566 default_value = xbt_strdup("futex");
567 #else //No futex on mac and posix is unimplememted yet
568 default_value = xbt_strdup("busy_wait");
570 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
571 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
572 xbt_cfgelm_string, &default_value, 1, 1,
573 _surf_cfg_cb_contexts_parallel_mode, NULL);
575 /* number of parallel threads for Surf */
576 default_value_int = surf_get_nthreads();
577 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
578 "Number of parallel threads used to update Surf models",
579 xbt_cfgelm_int, &default_value_int, 1, 1,
580 _surf_cfg_cb_surf_nthreads, NULL);
582 default_value = xbt_strdup("no");
583 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
584 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
585 xbt_cfgelm_string, &default_value, 1, 1,
586 _surf_cfg_cb__surf_network_coordinates, NULL);
587 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
589 default_value_int = 0;
590 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
591 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
592 xbt_cfgelm_int, &default_value_int, 0, 1,
593 _surf_cfg_cb__surf_network_crosstraffic, NULL);
594 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
597 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
598 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
599 xbt_cfgelm_double, NULL, 1, 1,
600 _surf_cfg_cb__gtnets_jitter, NULL);
601 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
603 default_value_int = 10;
604 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
605 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
606 xbt_cfgelm_int, &default_value_int, 0, 1,
607 _surf_cfg_cb__gtnets_jitter_seed, NULL);
610 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
611 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
612 xbt_cfgelm_string, NULL, 1, 1,
614 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
618 double default_reference_speed = 20000.0;
619 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
620 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
621 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
624 int default_display_timing = 0;
625 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
626 "Boolean indicating whether we should display the timing after simulation.",
627 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
630 double default_threshold = 1e-6;
631 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
632 "Minimal computation time (in seconds) not discarded.",
633 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
636 //For smpi/bw_factor and smpi/lat_factor
637 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
638 //test is if( size >= thresholdN ) return valueN;
639 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
640 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
641 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
642 "Bandwidth factors for smpi.",
643 xbt_cfgelm_string, NULL, 1, 1, NULL,
645 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");
647 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
648 "Latency factors for smpi.",
649 xbt_cfgelm_string, NULL, 1, 1, NULL,
651 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");
656 /* retrieves the current directory of the current process */
657 const char *initial_path = __surf_get_initial_path();
658 xbt_assert((initial_path),
659 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
661 surf_path = xbt_dynar_new(sizeof(char *), NULL);
662 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
666 surf_config_cmd_line(argc, argv);
668 XBT_WARN("Call to surf_config_init() after initialization ignored");
672 void surf_config_finalize(void)
674 if (!_surf_init_status)
675 return; /* Not initialized yet. Nothing to do */
677 xbt_cfg_free(&_surf_cfg_set);
678 _surf_init_status = 0;
681 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
682 void surf_config_models_setup()
684 char *workstation_model_name;
685 int workstation_id = -1;
686 char *network_model_name = NULL;
687 char *cpu_model_name = NULL;
689 char *storage_model_name = NULL;
691 workstation_model_name =
692 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
693 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
694 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
695 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
697 /* Check whether we use a net/cpu model differing from the default ones, in which case
698 * we should switch to the "compound" workstation model to correctly dispatch stuff to
699 * the right net/cpu models.
702 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
703 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
704 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
706 const char *val = "compound";
708 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
709 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
710 workstation_model_name = (char *) "compound";
713 XBT_DEBUG("Workstation model: %s", workstation_model_name);
715 find_model_description(surf_workstation_model_description,
716 workstation_model_name);
717 if (!strcmp(workstation_model_name, "compound")) {
721 xbt_assert(cpu_model_name,
722 "Set a cpu model to use with the 'compound' workstation model");
724 xbt_assert(network_model_name,
725 "Set a network model to use with the 'compound' workstation model");
728 find_model_description(surf_network_model_description,
731 find_model_description(surf_cpu_model_description, cpu_model_name);
733 surf_cpu_model_description[cpu_id].model_init_preparse();
734 surf_network_model_description[network_id].model_init_preparse();
737 XBT_DEBUG("Call workstation_model_init");
738 surf_workstation_model_description[workstation_id].model_init_preparse();
740 XBT_DEBUG("Call storage_model_init");
741 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
742 surf_storage_model_description[storage_id].model_init_preparse();