-/* Copyright (c) 2009, 2010. The SimGrid Team.
- * All rights reserved. */
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-/* surf_config: configuration infrastructure for the simulation world */
-
-#include "xbt/config.h"
-#include "xbt/str.h"
-#include "surf/surf_private.h"
-#include "surf/surf_routing.h" /* COORD_HOST_LEVEL and COORD_ASR_LEVEL */
-#include "simix/context.h"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
- "About the configuration of surf (and the rest of the simulation)");
-
-xbt_cfg_t _surf_cfg_set = NULL;
-
-/* Parse the command line, looking for options */
-static void surf_config_cmd_line(int *argc, char **argv)
-{
- int i, j;
- char *opt;
-
- for (i = 1; i < *argc; i++) {
- int remove_it = 0;
- if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
- opt = strchr(argv[i], '=');
- opt++;
-
- xbt_cfg_set_parse(_surf_cfg_set, opt);
- XBT_DEBUG("Did apply '%s' as config setting", opt);
- remove_it = 1;
- } else if (!strncmp(argv[i], "--cfg-help", strlen("--cfg-help") + 1) ||
- !strncmp(argv[i], "--help", strlen("--help") + 1)) {
- printf
- ("Description of the configuration accepted by this simulator:\n");
- xbt_cfg_help(_surf_cfg_set);
- printf("\nYou can also use --help-models to see the details of all models known by this simulator.\n");
-#ifdef HAVE_TRACING
- printf("\nYou can also use --help-tracing to see the details of all tracing options known by this simulator.\n");
-#endif
- exit(0);
- } else if (!strncmp(argv[i], "--help-models", strlen("--help-models") + 1)) {
- model_help("workstation", surf_workstation_model_description);
- model_help("CPU", surf_cpu_model_description);
- model_help("network", surf_network_model_description);
- exit(0);
-#ifdef HAVE_TRACING
- } else if (!strncmp(argv[i], "--help-tracing", strlen("--help-tracing") + 1)) {
- TRACE_help (1);
- exit(0);
-#endif
- }
- if (remove_it) { /*remove this from argv */
- for (j = i + 1; j < *argc; j++) {
- argv[j - 1] = argv[j];
- }
-
- argv[j - 1] = NULL;
- (*argc)--;
- i--; /* compensate effect of next loop incrementation */
- }
- }
-}
-
-
-int _surf_init_status = 0; /* 0: beginning of time;
- 1: pre-inited (cfg_set created);
- 2: inited (running) */
-
-/* callback of the workstation/model variable */
-static void _surf_cfg_cb__workstation_model(const char *name, int pos)
-{
- char *val;
-
- xbt_assert(_surf_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_surf_cfg_set, name);
-
- if (!strcmp(val, "help")) {
- model_help("workstation", surf_workstation_model_description);
- exit(0);
- }
-
- /* Make sure that the model exists */
- find_model_description(surf_workstation_model_description, val);
-}
-
-/* callback of the cpu/model variable */
-static void _surf_cfg_cb__cpu_model(const char *name, int pos)
-{
- char *val;
-
- xbt_assert(_surf_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_surf_cfg_set, name);
-
- if (!strcmp(val, "help")) {
- model_help("CPU", surf_cpu_model_description);
- exit(0);
- }
-
- /* New Module missing */
- find_model_description(surf_cpu_model_description, val);
-}
-
-/* callback of the cpu/model variable */
-static void _surf_cfg_cb__optimization_mode(const char *name, int pos)
-{
- char *val;
-
- xbt_assert(_surf_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_surf_cfg_set, name);
-
- if (!strcmp(val, "help")) {
- model_help("optimization", surf_optimization_mode_description);
- exit(0);
- }
-
- /* New Module missing */
- find_model_description(surf_optimization_mode_description, val);
-}
-
-/* callback of the workstation_model variable */
-static void _surf_cfg_cb__network_model(const char *name, int pos)
-{
- char *val;
-
- xbt_assert(_surf_init_status < 2,
- "Cannot change the model after the initialization");
-
- val = xbt_cfg_get_string(_surf_cfg_set, name);
-
- if (!strcmp(val, "help")) {
- model_help("network", surf_network_model_description);
- exit(0);
- }
-
- /* New Module missing */
- find_model_description(surf_network_model_description, val);
-}
-
-
-/* callbacks of the network models values */
-static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
-{
- sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__maxmin_precision(const char* name, int pos)
-{
- sg_maxmin_precision = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__sender_gap(const char* name, int pos)
-{
- sg_sender_gap = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__latency_factor(const char *name, int pos)
-{
- sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos)
-{
- sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__weight_S(const char *name, int pos)
-{
- sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__surf_maxmin_selective_update(const char *name,
- int pos)
-{
- sg_maxmin_selective_update = xbt_cfg_get_int(_surf_cfg_set, name);
-}
-
-/* callback of the inclusion path */
-static void _surf_cfg_cb__surf_path(const char *name, int pos)
-{
- char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
- xbt_dynar_push(surf_path, &path);
-}
-
-/* callback to decide if we want to use the model-checking */
-#include "xbt_modinter.h"
-extern int _surf_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
-
-static void _surf_cfg_cb_model_check(const char *name, int pos)
-{
- _surf_do_model_check = xbt_cfg_get_int(_surf_cfg_set, name);
-
- if (_surf_do_model_check) {
- /* Tell modules using mallocators that they shouldn't. MC don't like them */
- xbt_fifo_preinit();
- xbt_dict_preinit();
- }
-}
-
-extern int _surf_do_verbose_exit;
-
-static void _surf_cfg_cb_verbose_exit(const char *name, int pos)
-{
- _surf_do_verbose_exit = xbt_cfg_get_int(_surf_cfg_set, name);
-}
-
-
-static void _surf_cfg_cb_context_factory(const char *name, int pos)
-{
- smx_context_factory_name = xbt_cfg_get_string(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
-{
- smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
-}
-
-static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
-{
- SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
-}
-
-static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
-{
- SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
-}
-
-static void _surf_cfg_cb_contexts_parallel_mode(const char *name, int pos)
-{
- const char* mode_name = xbt_cfg_get_string(_surf_cfg_set, name);
- if (!strcmp(mode_name, "posix")) {
- SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
- }
- else if (!strcmp(mode_name, "futex")) {
- SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
- }
- else if (!strcmp(mode_name, "busy_wait")) {
- SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
- }
- else {
- XBT_WARN("Command line setting of the parallel synchronization mode should "
- "be one of \"posix\", \"futex\" or \"busy_wait\"");
- }
-}
-
-static void _surf_cfg_cb__surf_network_coordinates(const char *name,
- int pos)
-{
- char *val = xbt_cfg_get_string(_surf_cfg_set, name);
- if (!strcmp(val, "yes")) {
- if (!COORD_HOST_LEVEL) {
- COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
- COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
- }
- } else if (!strcmp(val, "no")) {
- if (COORD_HOST_LEVEL)
- XBT_WARN("Setting of whether to use coordinate cannot be disabled once set.");
- } else {
- XBT_WARN("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
- }
-}
-
-static void _surf_cfg_cb__surf_network_fullduplex(const char *name,
- int pos)
-{
- sg_network_fullduplex = xbt_cfg_get_int(_surf_cfg_set, name);
-}
-
-#ifdef HAVE_GTNETS
-static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos)
-{
- sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
-}
-
-static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
-{
- sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
-}
-#endif
-
-/* create the config set, register what should be and parse the command line*/
-void surf_config_init(int *argc, char **argv)
-{
- char *description = xbt_malloc(1024), *p = description;
- char *default_value;
- double double_default_value;
- int default_value_int;
- int i;
-
- /* Create the configuration support */
- if (_surf_init_status == 0) { /* Only create stuff if not already inited */
- _surf_init_status = 1;
-
- sprintf(description,
- "The model to use for the CPU. Possible values: ");
- p = description;
- while (*(++p) != '\0');
- for (i = 0; surf_cpu_model_description[i].name; i++)
- p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
- surf_cpu_model_description[i].name);
- sprintf(p,
- ".\n (use 'help' as a value to see the long description of each model)");
- default_value = xbt_strdup("Cas01");
- xbt_cfg_register(&_surf_cfg_set,
- "cpu/model", description, xbt_cfgelm_string,
- &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
-
- sprintf(description,
- "The optimization modes to use for the CPU. Possible values: ");
- p = description;
- while (*(++p) != '\0');
- for (i = 0; surf_optimization_mode_description[i].name; i++)
- p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
- surf_optimization_mode_description[i].name);
- sprintf(p,
- ".\n (use 'help' as a value to see the long description of each optimization mode)");
- default_value = xbt_strdup("Lazy");
- xbt_cfg_register(&_surf_cfg_set,
- "cpu/optim", description, xbt_cfgelm_string,
- &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
-
- sprintf(description,
- "The model to use for the network. Possible values: ");
- p = description;
- while (*(++p) != '\0');
- for (i = 0; surf_network_model_description[i].name; i++)
- p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
- surf_network_model_description[i].name);
- sprintf(p,
- ".\n (use 'help' as a value to see the long description of each model)");
- default_value = xbt_strdup("LV08");
- xbt_cfg_register(&_surf_cfg_set,
- "network/model", description, xbt_cfgelm_string,
- &default_value, 1, 1, &_surf_cfg_cb__network_model,
- NULL);
-
- sprintf(description,
- "The optimization modes to use for the network. Possible values: ");
- p = description;
- while (*(++p) != '\0');
- for (i = 0; surf_optimization_mode_description[i].name; i++)
- p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
- surf_optimization_mode_description[i].name);
- sprintf(p,
- ".\n (use 'help' as a value to see the long description of each optimization mode)");
- default_value = xbt_strdup("Lazy");
- xbt_cfg_register(&_surf_cfg_set,
- "network/optim", description, xbt_cfgelm_string,
- &default_value, 1, 1, &_surf_cfg_cb__optimization_mode, NULL);
-
- sprintf(description,
- "The model to use for the workstation. Possible values: ");
- p = description;
- while (*(++p) != '\0');
- for (i = 0; surf_workstation_model_description[i].name; i++)
- p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
- surf_workstation_model_description[i].name);
- sprintf(p,
- ".\n (use 'help' as a value to see the long description of each model)");
- default_value = xbt_strdup("CLM03");
- xbt_cfg_register(&_surf_cfg_set,
- "workstation/model", description, xbt_cfgelm_string,
- &default_value, 1, 1,
- &_surf_cfg_cb__workstation_model, NULL);
-
- xbt_free(description);
-
- default_value = xbt_strdup("Full");
- xbt_cfg_register(&_surf_cfg_set, "routing",
- "Model to use to store the routing information",
- xbt_cfgelm_string, &default_value, 1, 1, NULL, NULL);
-
- xbt_cfg_register(&_surf_cfg_set, "TCP_gamma",
- "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)",
- xbt_cfgelm_double, NULL, 1, 1,
- _surf_cfg_cb__tcp_gamma, NULL);
- xbt_cfg_setdefault_double(_surf_cfg_set, "TCP_gamma", 20000.0);
-
- xbt_cfg_register(&_surf_cfg_set, "maxmin/precision",
- "Minimum retained action value when updating simulation",
- xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__maxmin_precision, NULL);
- xbt_cfg_setdefault_double(_surf_cfg_set, "maxmin/precision", 0.00001); // FIXME use setdefault everywhere here!
-
- /* The parameters of network models */
-
- double_default_value = 0.0;
- xbt_cfg_register(&_surf_cfg_set, "network/sender_gap",
- "Minimum gap between two overlapping sends",
- xbt_cfgelm_double, &double_default_value, 1, 1,
- _surf_cfg_cb__sender_gap, NULL);
-
- double_default_value = 1.0;
- xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
- "Correction factor to apply to the provided latency (default value set by network model)",
- xbt_cfgelm_double, &double_default_value, 1, 1,
- _surf_cfg_cb__latency_factor, NULL);
- double_default_value = 1.0;
- xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
- "Correction factor to apply to the provided bandwidth (default value set by network model)",
- xbt_cfgelm_double, &double_default_value, 1, 1,
- _surf_cfg_cb__bandwidth_factor, NULL);
- double_default_value = 0.0;
- xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
- "Correction factor to apply to the weight of competing streams(default value set by network model)",
- xbt_cfgelm_double, &double_default_value, 1, 1,
- _surf_cfg_cb__weight_S, NULL);
-
- /* Inclusion path */
- xbt_cfg_register(&_surf_cfg_set, "path",
- "Lookup path for inclusions in platform and deployment XML files",
- xbt_cfgelm_string, NULL, 0, 0,
- _surf_cfg_cb__surf_path, NULL);
-
- default_value_int = 0;
- xbt_cfg_register(&_surf_cfg_set, "maxmin_selective_update",
- "Update the constraint set propagating recursively to others constraints",
- xbt_cfgelm_int, &default_value_int, 0, 1,
- _surf_cfg_cb__surf_maxmin_selective_update, NULL);
-
- /* do model-check */
- default_value_int = 0;
- xbt_cfg_register(&_surf_cfg_set, "model-check",
- "Activate the model-checking of the \"simulated\" system (EXPERIMENTAL -- msg only for now)",
- xbt_cfgelm_int, &default_value_int, 0, 1,
- _surf_cfg_cb_model_check, NULL);
-
- /*
- FIXME: this function is not setting model-check to it's default value because
- internally it calls to variable->cb_set that in this case is the function
- _surf_cfg_cb_model_check which sets it's value to 1 (instead of the default value 0)
- xbt_cfg_set_int(_surf_cfg_set, "model-check", default_value_int); */
-
- /* do verbose-exit */
- default_value_int = 0;
- xbt_cfg_register(&_surf_cfg_set, "verbose-exit",
- "Activate the \"do nothing\" mode in Ctrl-C",
- xbt_cfgelm_int, &default_value_int, 0, 1,
- _surf_cfg_cb_verbose_exit, NULL);
-
-
- /* context factory */
- default_value = xbt_strdup("ucontext");
- xbt_cfg_register(&_surf_cfg_set, "contexts/factory",
- "Context factory to use in SIMIX (ucontext, thread or raw)",
- xbt_cfgelm_string, &default_value, 1, 1, _surf_cfg_cb_context_factory, NULL);
-
- /* stack size of contexts in Ko */
- default_value_int = 128;
- xbt_cfg_register(&_surf_cfg_set, "contexts/stack_size",
- "Stack size of contexts in Ko (ucontext or raw only)",
- xbt_cfgelm_int, &default_value_int, 1, 1,
- _surf_cfg_cb_context_stack_size, NULL);
-
- /* number of parallel threads for user processes */
- default_value_int = 1;
- xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
- "Number of parallel threads for user contexts (EXPERIMENTAL)",
- xbt_cfgelm_int, &default_value_int, 1, 1,
- _surf_cfg_cb_contexts_nthreads, NULL);
-
- /* minimal number of user contexts to be run in parallel */
- default_value_int = 1;
- xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
- "Minimal number of user contexts to be run in parallel (raw contexts only)",
- xbt_cfgelm_int, &default_value_int, 1, 1,
- _surf_cfg_cb_contexts_parallel_threshold, NULL);
-
- /* minimal number of user contexts to be run in parallel */
- default_value = xbt_strdup("futex");
- xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_mode",
- "Synchronization mode to use when running contexts in parallel",
- xbt_cfgelm_string, &default_value, 1, 1,
- _surf_cfg_cb_contexts_parallel_mode, NULL);
-
- default_value = xbt_strdup("no");
- xbt_cfg_register(&_surf_cfg_set, "coordinates",
- "\"yes\" or \"no\" (FIXME: document)",
- xbt_cfgelm_string, &default_value, 1, 1,
- _surf_cfg_cb__surf_network_coordinates, NULL);
- xbt_cfg_setdefault_string(_surf_cfg_set, "coordinates", default_value);
-
- default_value_int = 0;
- xbt_cfg_register(&_surf_cfg_set, "fullduplex",
- "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
- xbt_cfgelm_int, &default_value_int, 0, 1,
- _surf_cfg_cb__surf_network_fullduplex, NULL);
- xbt_cfg_setdefault_int(_surf_cfg_set, "fullduplex", default_value_int);
-
-#ifdef HAVE_GTNETS
- xbt_cfg_register(&_surf_cfg_set, "gtnets_jitter",
- "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
- xbt_cfgelm_double, NULL, 1, 1,
- _surf_cfg_cb__gtnets_jitter, NULL);
- xbt_cfg_setdefault_double(_surf_cfg_set, "gtnets_jitter", 0.0);
-
- default_value_int = 10;
- xbt_cfg_register(&_surf_cfg_set, "gtnets_jitter_seed",
- "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
- xbt_cfgelm_int, &default_value_int, 0, 1,
- _surf_cfg_cb__gtnets_jitter_seed, NULL);
-#endif
-#ifdef HAVE_NS3
- xbt_cfg_register(&_surf_cfg_set, "ns3/TcpModel",
- "The ns3 tcp model can be : NewReno or Reno or Tahoe",
- xbt_cfgelm_string, NULL, 1, 1,
- NULL, NULL);
- xbt_cfg_setdefault_string(_surf_cfg_set, "ns3/TcpModel", "default");
-#endif
- if (!surf_path) {
- /* retrieves the current directory of the current process */
- const char *initial_path = __surf_get_initial_path();
- xbt_assert((initial_path),
- "__surf_get_initial_path() failed! Can't resolves current Windows directory");
-
- surf_path = xbt_dynar_new(sizeof(char *), NULL);
- xbt_cfg_setdefault_string(_surf_cfg_set, "path", initial_path);
- }
-
-
- surf_config_cmd_line(argc, argv);
- } else {
- XBT_WARN("Call to surf_config_init() after initialization ignored");
- }
-}
-
-void surf_config_finalize(void)
-{
- if (!_surf_init_status)
- return; /* Not initialized yet. Nothing to do */
-
- xbt_cfg_free(&_surf_cfg_set);
- _surf_init_status = 0;
-}
-
-/* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
-void surf_config_models_setup()
-{
- char *workstation_model_name;
- int workstation_id = -1;
- char *network_model_name = NULL;
- char *cpu_model_name = NULL;
-
- workstation_model_name =
- xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
- network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
- cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
-
- /* Check whether we use a net/cpu model differing from the default ones, in which case
- * we should switch to the "compound" workstation model to correctly dispatch stuff to
- * the right net/cpu models.
- */
-
- if((!xbt_cfg_is_default_value(_surf_cfg_set, "network/model") ||
- !xbt_cfg_is_default_value(_surf_cfg_set, "cpu/model")) &&
- xbt_cfg_is_default_value(_surf_cfg_set, "workstation/model"))
- {
- const char *val = "compound";
- XBT_INFO
- ("Switching workstation model to compound since you changed the network and/or cpu model(s)");
- xbt_cfg_set_string(_surf_cfg_set, "workstation/model", val);
- workstation_model_name = (char *) "compound";
- }
-
- XBT_DEBUG("Workstation model: %s", workstation_model_name);
- workstation_id =
- find_model_description(surf_workstation_model_description,
- workstation_model_name);
- if (!strcmp(workstation_model_name, "compound")) {
- int network_id = -1;
- int cpu_id = -1;
-
- xbt_assert(cpu_model_name,
- "Set a cpu model to use with the 'compound' workstation model");
-
- xbt_assert(network_model_name,
- "Set a network model to use with the 'compound' workstation model");
-
- network_id =
- find_model_description(surf_network_model_description,
- network_model_name);
- cpu_id =
- find_model_description(surf_cpu_model_description, cpu_model_name);
-
- surf_cpu_model_description[cpu_id].model_init_preparse();
- surf_network_model_description[network_id].model_init_preparse();
- }
-
- XBT_DEBUG("Call workstation_model_init");
- surf_workstation_model_description[workstation_id].model_init_preparse();
-}
