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)
73 for (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);
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")) {
99 model_help("workstation", surf_workstation_model_description);
101 model_help("CPU", surf_cpu_model_description);
103 model_help("network", surf_network_model_description);
104 printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
105 for (i = 0; surf_optimization_mode_description[i].name; i++)
106 printf(" %s: %s\n", surf_optimization_mode_description[i].name, surf_optimization_mode_description[i].description);
107 printf("Both network and CPU models have 'Lazy' as default optimization level\n");
109 } else if (!strcmp(argv[i], "--help-logs")) {
113 } else if (!strcmp(argv[i], "--help-tracing")) {
118 if (remove_it) { /*remove this from argv */
119 for (j = i + 1; j < *argc; j++) {
120 argv[j - 1] = argv[j];
125 i--; /* compensate effect of next loop incrementation */
131 int _surf_init_status = 0; /* 0: beginning of time;
132 1: pre-inited (cfg_set created);
133 2: inited (running) */
135 /* callback of the workstation/model variable */
136 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
140 xbt_assert(_surf_init_status < 2,
141 "Cannot change the model after the initialization");
143 val = xbt_cfg_get_string(_surf_cfg_set, name);
145 if (!strcmp(val, "help")) {
146 model_help("workstation", surf_workstation_model_description);
150 /* Make sure that the model exists */
151 find_model_description(surf_workstation_model_description, val);
154 /* callback of the cpu/model variable */
155 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
159 xbt_assert(_surf_init_status < 2,
160 "Cannot change the model after the initialization");
162 val = xbt_cfg_get_string(_surf_cfg_set, name);
164 if (!strcmp(val, "help")) {
165 model_help("CPU", surf_cpu_model_description);
169 /* New Module missing */
170 find_model_description(surf_cpu_model_description, val);
173 /* callback of the cpu/model variable */
174 static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
178 xbt_assert(_surf_init_status < 2,
179 "Cannot change the model after the initialization");
181 val = xbt_cfg_get_string(_surf_cfg_set, name);
183 if (!strcmp(val, "help")) {
184 model_help("optimization", surf_optimization_mode_description);
188 /* New Module missing */
189 find_model_description(surf_optimization_mode_description, val);
192 /* callback of the cpu/model variable */
193 static void _surf_cfg_cb__storage_mode(const char *name, int pos)
197 xbt_assert(_surf_init_status < 2,
198 "Cannot change the model after the initialization");
200 val = xbt_cfg_get_string(_surf_cfg_set, name);
202 if (!strcmp(val, "help")) {
203 model_help("storage", surf_storage_model_description);
207 /* New Module missing */
208 find_model_description(surf_storage_model_description, val);
211 /* callback of the workstation_model variable */
212 static void _surf_cfg_cb__network_model(const char *name, int pos)
216 xbt_assert(_surf_init_status < 2,
217 "Cannot change the model after the initialization");
219 val = xbt_cfg_get_string(_surf_cfg_set, name);
221 if (!strcmp(val, "help")) {
222 model_help("network", surf_network_model_description);
226 /* New Module missing */
227 find_model_description(surf_network_model_description, val);
231 /* callbacks of the network models values */
232 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
234 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
237 static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
239 sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
242 static void _surf_cfg_cb__sender_gap(const char* name, int pos)
244 sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
247 static void _surf_cfg_cb__latency_factor(const char *name, int pos)
249 sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
252 static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
254 sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
257 static void _surf_cfg_cb__weight_S(const char *name, int pos)
259 sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
262 /* callback of the inclusion path */
263 static void _surf_cfg_cb__surf_path(const char *name, int pos)
265 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
266 xbt_dynar_push(surf_path, &path);
269 /* callback to decide if we want to use the model-checking */
270 #include "xbt_modinter.h"
271 extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
273 static void _surf_cfg_cb_model_check(const char *name, int pos)
275 _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
277 if (_surf_do_model_check) {
278 /* Tell modules using mallocators that they shouldn't. MC don't like them */
284 extern int _surf_do_verbose_exit;
286 static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
288 _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
292 static void _surf_cfg_cb_context_factory(const char *name, int pos)
294 smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
297 static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
299 smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
302 static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
304 SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
307 static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
309 SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
312 static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
314 const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
315 if (!strcmp(mode_name, "posix")) {
316 SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
318 else if (!strcmp(mode_name, "futex")) {
319 SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
321 else if (!strcmp(mode_name, "busy_wait")) {
322 SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
325 xbt_die("Command line setting of the parallel synchronization mode should "
326 "be one of \"posix\", \"futex\" or \"busy_wait\"");
330 static void _surf_cfg_cb_surf_nthreads(const char *name, int pos)
332 surf_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
335 static void _surf_cfg_cb__surf_network_coordinates(const char *name,
338 char *val = xbt_cfg_get_string(_surf_cfg_set, name);
339 if (!strcmp(val, "yes")) {
340 if (!COORD_HOST_LEVEL) {
341 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
342 COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
344 } else if (!strcmp(val, "no")) {
345 if (COORD_HOST_LEVEL)
346 xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
348 xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
352 static void _surf_cfg_cb__surf_network_crosstraffic(const char *name,
355 sg_network_crosstraffic = xbt_cfg_get_int(_surf_cfg_set, name);
359 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
361 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
364 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
366 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
370 /* create the config set, register what should be and parse the command line*/
371 void surf_config_init(int *argc, char **argv)
373 char *description = xbt_malloc(1024), *p = description;
375 double double_default_value;
376 int default_value_int;
379 /* Create the configuration support */
380 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
381 _surf_init_status = 1;
384 "The model to use for the CPU. Possible values: ");
386 while (*(++p) != '\0');
387 for (i = 0; surf_cpu_model_description[i].name; i++)
388 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
389 surf_cpu_model_description[i].name);
391 ".\n (use 'help' as a value to see the long description of each model)");
392 default_value = xbt_strdup("Cas01");
393 xbt_cfg_register(&_surf_cfg_set, "cpu/model", description, xbt_cfgelm_string,
394 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
397 "The optimization modes to use for the CPU. Possible values: ");
399 while (*(++p) != '\0');
400 for (i = 0; surf_optimization_mode_description[i].name; i++)
401 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
402 surf_optimization_mode_description[i].name);
404 ".\n (use 'help' as a value to see the long description of each optimization mode)");
405 default_value = xbt_strdup("Lazy");
406 xbt_cfg_register(&_surf_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
407 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
410 "The model to use for the storage. Possible values: ");
412 while (*(++p) != '\0');
413 for (i = 0; surf_storage_model_description[i].name; i++)
414 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
415 surf_storage_model_description[i].name);
417 ".\n (use 'help' as a value to see the long description of each model)");
418 default_value = xbt_strdup("default");
419 xbt_cfg_register(&_surf_cfg_set, "storage/model", description, xbt_cfgelm_string,
420 &default_value, 1, 1, &_surf_cfg_cb__storage_mode,
424 "The model to use for the network. Possible values: ");
426 while (*(++p) != '\0');
427 for (i = 0; surf_network_model_description[i].name; i++)
428 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
429 surf_network_model_description[i].name);
431 ".\n (use 'help' as a value to see the long description of each model)");
432 default_value = xbt_strdup("LV08");
433 xbt_cfg_register(&_surf_cfg_set, "network/model", description, xbt_cfgelm_string,
434 &default_value, 1, 1, &_surf_cfg_cb__network_model,
438 "The optimization modes to use for the network. Possible values: ");
440 while (*(++p) != '\0');
441 for (i = 0; surf_optimization_mode_description[i].name; i++)
442 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
443 surf_optimization_mode_description[i].name);
445 ".\n (use 'help' as a value to see the long description of each optimization mode)");
446 default_value = xbt_strdup("Lazy");
447 xbt_cfg_register(&_surf_cfg_set, "network/optim", description, xbt_cfgelm_string,
448 &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
451 "The model to use for the workstation. Possible values: ");
453 while (*(++p) != '\0');
454 for (i = 0; surf_workstation_model_description[i].name; i++)
455 p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
456 surf_workstation_model_description[i].name);
458 ".\n (use 'help' as a value to see the long description of each model)");
459 default_value = xbt_strdup("default");
460 xbt_cfg_register(&_surf_cfg_set, "workstation/model", description, xbt_cfgelm_string,
461 &default_value, 1, 1,
462 &_surf_cfg_cb__workstation_model, NULL);
464 xbt_free(description);
466 xbt_cfg_register(&_surf_cfg_set, "network/TCP_gamma",
467 "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)",
468 xbt_cfgelm_double, NULL, 1, 1,
469 _surf_cfg_cb__tcp_gamma, NULL);
470 xbt_cfg_setdefault_double(_surf_cfg_set, "network/TCP_gamma", 20000.0);
472 xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
473 "Numerical precision used when updating simulation models (epsilon in double comparisons)",
474 xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
475 xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
477 /* The parameters of network models */
479 double_default_value = 0.0;
480 xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
481 "Minimum gap between two overlapping sends",
482 xbt_cfgelm_double, &double_default_value, 1, 1,
483 _surf_cfg_cb__sender_gap, NULL);
485 double_default_value = 1.0;
486 xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
487 "Correction factor to apply to the provided latency (default value set by network model)",
488 xbt_cfgelm_double, &double_default_value, 1, 1,
489 _surf_cfg_cb__latency_factor, NULL);
490 double_default_value = 1.0;
491 xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
492 "Correction factor to apply to the provided bandwidth (default value set by network model)",
493 xbt_cfgelm_double, &double_default_value, 1, 1,
494 _surf_cfg_cb__bandwidth_factor, NULL);
495 double_default_value = 0.0;
496 xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
497 "Correction factor to apply to the weight of competing streams(default value set by network model)",
498 xbt_cfgelm_double, &double_default_value, 1, 1,
499 _surf_cfg_cb__weight_S, NULL);
502 xbt_cfg_register(&_surf_cfg_set, "path",
503 "Lookup path for inclusions in platform and deployment XML files",
504 xbt_cfgelm_string, NULL, 0, 0,
505 _surf_cfg_cb__surf_path, NULL);
507 default_value_int = 0;
508 xbt_cfg_register(&_surf_cfg_set, "cpu/maxmin_selective_update",
509 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
510 xbt_cfgelm_int, &default_value_int, 0, 1,
512 default_value_int = 0;
513 xbt_cfg_register(&_surf_cfg_set, "network/maxmin_selective_update",
514 "Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
515 xbt_cfgelm_int, &default_value_int, 0, 1,
519 default_value_int = 0;
520 xbt_cfg_register(&_surf_cfg_set, "model-check",
521 "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
522 xbt_cfgelm_int, &default_value_int, 0, 1,
523 _surf_cfg_cb_model_check, NULL);
526 FIXME: this function is not setting model-check to it's default value because
527 internally it calls to variable->cb_set that in this case is the function
528 _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
529 xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
531 /* do verbose-exit */
532 default_value_int = 1;
533 xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
534 "Activate the \"do nothing\" mode in Ctrl-C",
535 xbt_cfgelm_int, &default_value_int, 0, 1,
536 _surf_cfg_cb_verbose_exit, NULL);
539 /* context factory */
540 default_value = xbt_strdup("ucontext");
541 xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
542 "Context factory to use in SIMIX (ucontext, thread or raw)",
543 xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
545 /* stack size of contexts in Ko */
546 default_value_int = 128;
547 xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
548 "Stack size of contexts in Kib (ucontext or raw only)",
549 xbt_cfgelm_int, &default_value_int, 1, 1,
550 _surf_cfg_cb_context_stack_size, NULL);
552 /* number of parallel threads for user processes */
553 default_value_int = 1;
554 xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
555 "Number of parallel threads used to execute user contexts",
556 xbt_cfgelm_int, &default_value_int, 1, 1,
557 _surf_cfg_cb_contexts_nthreads, NULL);
559 /* minimal number of user contexts to be run in parallel */
560 default_value_int = 2;
561 xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
562 "Minimal number of user contexts to be run in parallel (raw contexts only)",
563 xbt_cfgelm_int, &default_value_int, 1, 1,
564 _surf_cfg_cb_contexts_parallel_threshold, NULL);
566 /* synchronization mode for parallel user contexts */
568 default_value = xbt_strdup("futex");
569 #else //No futex on mac and posix is unimplememted yet
570 default_value = xbt_strdup("busy_wait");
572 xbt_cfg_register(&_surf_cfg_set, "contexts/synchro",
573 "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
574 xbt_cfgelm_string, &default_value, 1, 1,
575 _surf_cfg_cb_contexts_parallel_mode, NULL);
577 /* number of parallel threads for Surf */
578 default_value_int = surf_get_nthreads();
579 xbt_cfg_register(&_surf_cfg_set, "surf/nthreads",
580 "Number of parallel threads used to update Surf models",
581 xbt_cfgelm_int, &default_value_int, 1, 1,
582 _surf_cfg_cb_surf_nthreads, NULL);
584 default_value = xbt_strdup("no");
585 xbt_cfg_register(&_surf_cfg_set, "network/coordinates",
586 "\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
587 xbt_cfgelm_string, &default_value, 1, 1,
588 _surf_cfg_cb__surf_network_coordinates, NULL);
589 xbt_cfg_setdefault_string(_surf_cfg_set, "network/coordinates", default_value);
591 default_value_int = 0;
592 xbt_cfg_register(&_surf_cfg_set, "network/crosstraffic",
593 "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
594 xbt_cfgelm_int, &default_value_int, 0, 1,
595 _surf_cfg_cb__surf_network_crosstraffic, NULL);
596 xbt_cfg_setdefault_int(_surf_cfg_set, "network/crosstraffic", default_value_int);
599 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter",
600 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
601 xbt_cfgelm_double, NULL, 1, 1,
602 _surf_cfg_cb__gtnets_jitter, NULL);
603 xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets/jitter", 0.0);
605 default_value_int = 10;
606 xbt_cfg_register(&_surf_cfg_set, "gtnets/jitter_seed",
607 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
608 xbt_cfgelm_int, &default_value_int, 0, 1,
609 _surf_cfg_cb__gtnets_jitter_seed, NULL);
612 xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
613 "The ns3 tcp model can be : NewReno or Reno or Tahoe",
614 xbt_cfgelm_string, NULL, 1, 1,
616 xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
620 double default_reference_speed = 20000.0;
621 xbt_cfg_register(&_surf_cfg_set, "smpi/running_power",
622 "Power of the host running the simulation (in flop/s). Used to bench the operations.",
623 xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
626 int default_display_timing = 0;
627 xbt_cfg_register(&_surf_cfg_set, "smpi/display_timing",
628 "Boolean indicating whether we should display the timing after simulation.",
629 xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
632 double default_threshold = 1e-6;
633 xbt_cfg_register(&_surf_cfg_set, "smpi/cpu_threshold",
634 "Minimal computation time (in seconds) not discarded.",
635 xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
638 //For smpi/bw_factor and smpi/lat_factor
639 //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
640 //test is if( size >= thresholdN ) return valueN;
641 //Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
642 // or with tag config put line <prop id="smpi/bw_factor" value="threshold0:value0;threshold1:value1;...;thresholdN:valueN"></prop>
643 xbt_cfg_register(&_surf_cfg_set, "smpi/bw_factor",
644 "Bandwidth factors for smpi.",
645 xbt_cfgelm_string, NULL, 1, 1, NULL,
647 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");
649 xbt_cfg_register(&_surf_cfg_set, "smpi/lat_factor",
650 "Latency factors for smpi.",
651 xbt_cfgelm_string, NULL, 1, 1, NULL,
653 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");
658 /* retrieves the current directory of the current process */
659 const char *initial_path = __surf_get_initial_path();
660 xbt_assert((initial_path),
661 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
663 surf_path = xbt_dynar_new(sizeof(char *), NULL);
664 xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
668 surf_config_cmd_line(argc, argv);
670 XBT_WARN("Call to surf_config_init() after initialization ignored");
674 void surf_config_finalize(void)
676 if (!_surf_init_status)
677 return; /* Not initialized yet. Nothing to do */
679 xbt_cfg_free(&_surf_cfg_set);
680 _surf_init_status = 0;
683 /* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
684 void surf_config_models_setup()
686 char *workstation_model_name;
687 int workstation_id = -1;
688 char *network_model_name = NULL;
689 char *cpu_model_name = NULL;
691 char *storage_model_name = NULL;
693 workstation_model_name =
694 xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
695 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
696 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
697 storage_model_name = xbt_cfg_get_string(_surf_cfg_set, "storage/model");
699 /* Check whether we use a net/cpu model differing from the default ones, in which case
700 * we should switch to the "compound" workstation model to correctly dispatch stuff to
701 * the right net/cpu models.
704 if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
705 !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
706 xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
708 const char *val = "compound";
710 ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
711 xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
712 workstation_model_name = (char *) "compound";
715 XBT_DEBUG("Workstation model: %s", workstation_model_name);
717 find_model_description(surf_workstation_model_description,
718 workstation_model_name);
719 if (!strcmp(workstation_model_name, "compound")) {
723 xbt_assert(cpu_model_name,
724 "Set a cpu model to use with the 'compound' workstation model");
726 xbt_assert(network_model_name,
727 "Set a network model to use with the 'compound' workstation model");
730 find_model_description(surf_network_model_description,
733 find_model_description(surf_cpu_model_description, cpu_model_name);
735 surf_cpu_model_description[cpu_id].model_init_preparse();
736 surf_network_model_description[network_id].model_init_preparse();
739 XBT_DEBUG("Call workstation_model_init");
740 surf_workstation_model_description[workstation_id].model_init_preparse();
742 XBT_DEBUG("Call storage_model_init");
743 storage_id = find_model_description(surf_storage_model_description, storage_model_name);
744 surf_storage_model_description[storage_id].model_init_preparse();