X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/13025e8ea0f4fccfb16bc3214ed42aefa1b8d9d9..7d4a9a7e27436e76b10c1b1f9ce794655dc070a2:/src/surf/surf_config.c diff --git a/src/surf/surf_config.c b/src/surf/surf_config.c index 23de181fb9..8b13789179 100644 --- a/src/surf/surf_config.c +++ b/src/surf/surf_config.c @@ -1,527 +1 @@ -/* 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 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__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("Cannot disable CMD prop coordinates, once set."); - } else { - XBT_WARN("Setting CMD prop coordinates must be \"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 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 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); - - 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(); -}