X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/64475c65e715e134d5a72931863896eb5d43fd32..5eecba1cd4850c7820f9cfa3c1af484f674b1e8b:/src/surf/surf.c diff --git a/src/surf/surf.c b/src/surf/surf.c index 334fc64afe..edb6f37318 100644 --- a/src/surf/surf.c +++ b/src/surf/surf.c @@ -1,41 +1,225 @@ -/* $Id$ */ - -/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */ +/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 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. */ +#include + #include "surf_private.h" #include "xbt/module.h" +#include "mc/mc.h" + +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, + "Logging specific to SURF (kernel)"); + +/* Additional declarations for Windows potability. */ + +#ifndef MAX_DRIVE +#define MAX_DRIVE 26 +#endif + +#ifdef _XBT_WIN32 +#include +static const char *disk_drives_letter_table[MAX_DRIVE] = { + "A:\\", + "B:\\", + "C:\\", + "D:\\", + "E:\\", + "F:\\", + "G:\\", + "H:\\", + "I:\\", + "J:\\", + "K:\\", + "L:\\", + "M:\\", + "N:\\", + "O:\\", + "P:\\", + "Q:\\", + "R:\\", + "S:\\", + "T:\\", + "U:\\", + "V:\\", + "W:\\", + "X:\\", + "Y:\\", + "Z:\\" +}; +#endif /* #ifdef _XBT_WIN32 */ + +/* + * Returns the initial path. On Windows the initial path is + * the current directory for the current process in the other + * case the function returns "./" that represents the current + * directory on Unix/Linux platforms. + */ -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_global, surf, - "Logging specific to the SURF global module"); +const char *__surf_get_initial_path(void) +{ + +#ifdef _XBT_WIN32 + unsigned i; + char current_directory[MAX_PATH + 1] = { 0 }; + unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory); + char root[4] = { 0 }; + if (!len) + return NULL; -static double NOW = 0; + strncpy(root, current_directory, 3); -xbt_dynar_t resource_list = NULL; + for (i = 0; i < MAX_DRIVE; i++) { + if (toupper(root[0]) == disk_drives_letter_table[i][0]) + return disk_drives_letter_table[i]; + } + + return NULL; +#else + return "./"; +#endif +} + +/* The __surf_is_absolute_file_path() returns 1 if + * file_path is a absolute file path, in the other + * case the function returns 0. + */ +int __surf_is_absolute_file_path(const char *file_path) +{ +#ifdef _XBT_WIN32 + WIN32_FIND_DATA wfd = { 0 }; + HANDLE hFile = FindFirstFile(file_path, &wfd); + + if (INVALID_HANDLE_VALUE == hFile) + return 0; + + FindClose(hFile); + return 1; +#else + return (file_path[0] == '/'); +#endif +} + +double NOW = 0; + +xbt_dynar_t model_list = NULL; tmgr_history_t history = NULL; lmm_system_t maxmin_system = NULL; xbt_dynar_t surf_path = NULL; -double generic_maxmin_share_resources(xbt_swag_t running_actions, - size_t offset) +/* Don't forget to update the option description in smx_config when you change this */ +s_surf_model_description_t surf_network_model_description[] = { + {"Constant", + "Simplistic network model where all communication take a constant time (one second)", + NULL, surf_network_model_init_Constant}, + {"CM02", + "Realistic network model with lmm_solve and no correction factors", + NULL, surf_network_model_init_CM02}, + {"LV08", + "Realistic network model with lmm_solve and these correction factors: latency*=10.4, bandwidth*=.92, S=8775", + NULL, surf_network_model_init_LegrandVelho}, + {"LV08_im", + "Realistic network model with IMPROVED ACTION MANAGEMENT and these correction factors: latency*=10.4, bandwidth*=.92, S=8775", + NULL, im_surf_network_model_init_LegrandVelho}, + {"SMPI", + "Realistic network model with lmm_solve and correction factors on three intervals (< 1KiB, < 64 KiB, >= 64 KiB)", + NULL, surf_network_model_init_SMPI}, +#ifdef HAVE_GTNETS + {"GTNets", + "Network Pseudo-model using the GTNets simulator instead of an analytic model", + NULL, surf_network_model_init_GTNETS}, +#endif + {"Reno", + "Model using lagrange_solve instead of lmm_solve (experts only)", NULL, + surf_network_model_init_Reno}, + {"Reno2", + "Model using lagrange_solve instead of lmm_solve (experts only)", NULL, + surf_network_model_init_Reno2}, + {"Vegas", + "Model using lagrange_solve instead of lmm_solve (experts only)", NULL, + surf_network_model_init_Vegas}, + {NULL, NULL, NULL, NULL} /* this array must be NULL terminated */ +}; + +s_surf_model_description_t surf_cpu_model_description[] = { + {"Cas01_fullupdate", "CPU classical model time=size/power", NULL, + surf_cpu_model_init_Cas01}, + {"Cas01", + "Variation of Cas01_fullupdate with partial invalidation optimization of lmm system. Should produce the same values, only faster", + NULL, surf_cpu_model_init_Cas01_im}, + {"CpuTI", + "Variation of Cas01 with also trace integration. Should produce the same values, only faster if you use availability traces", + NULL, surf_cpu_model_init_ti}, + {NULL, NULL, NULL, NULL} /* this array must be NULL terminated */ +}; + +s_surf_model_description_t surf_workstation_model_description[] = { + {"CLM03", + "Default workstation model, using LV08 and CM02 as network and CPU", + NULL, surf_workstation_model_init_CLM03, create_workstations}, + {"compound", + "Workstation model allowing you to use other network and CPU models", + NULL, surf_workstation_model_init_compound, create_workstations}, + {"ptask_L07", "Workstation model with better parallel task modeling", + NULL, surf_workstation_model_init_ptask_L07, NULL}, + {NULL, NULL, NULL, NULL} /* this array must be NULL terminated */ +}; + +void update_model_description(s_surf_model_description_t * table, + const char *name, surf_model_t model) +{ + int i = find_model_description(table, name); + table[i].model = model; +} + +/** Displays the long description of all registered models, and quit */ +void model_help(const char *category, s_surf_model_description_t * table) +{ + int i; + printf("Long description of the %s models accepted by this simulator:\n", + category); + for (i = 0; table[i].name; i++) + printf(" %s: %s\n", table[i].name, table[i].description); +} + +int find_model_description(s_surf_model_description_t * table, + const char *name) { - return generic_maxmin_share_resources2(running_actions, offset, - maxmin_system); + int i; + char *name_list = NULL; + + for (i = 0; table[i].name; i++) + if (!strcmp(name, table[i].name)) { + return i; + } + name_list = strdup(table[0].name); + for (i = 1; table[i].name; i++) { + name_list = + xbt_realloc(name_list, + strlen(name_list) + strlen(table[i].name) + 2); + strcat(name_list, ", "); + strcat(name_list, table[i].name); + } + xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name, + name_list); + return -1; } -double generic_maxmin_share_resources2(xbt_swag_t running_actions, - size_t offset, - lmm_system_t sys) +double generic_maxmin_share_resources(xbt_swag_t running_actions, + size_t offset, + lmm_system_t sys, + void (*solve) (lmm_system_t)) { surf_action_t action = NULL; double min = -1; double value = -1; #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset)))) - lmm_solve(sys); + xbt_assert0(solve, "Give me a real solver function!"); + solve(sys); xbt_swag_foreach(action, running_actions) { value = lmm_variable_getvalue(VARIABLE(action)); @@ -47,7 +231,10 @@ double generic_maxmin_share_resources2(xbt_swag_t running_actions, return -1.0; if (value > 0) { - min = value = action->remains / value; + if (action->remains > 0) + min = action->remains / value; + else + min = 0.0; if ((action->max_duration >= 0) && (action->max_duration < min)) min = action->max_duration; } else @@ -59,153 +246,115 @@ double generic_maxmin_share_resources2(xbt_swag_t running_actions, action = xbt_swag_getNext(action, running_actions->offset)) { value = lmm_variable_getvalue(VARIABLE(action)); if (value > 0) { - value = action->remains / value; - if (value < min) - min = value; + if (action->remains > 0) + value = action->remains / value; + else + value = 0.0; + if (value < min) { + min = value; + DEBUG2("Updating min (value) with %p: %f", action, min); + } } - if ((action->max_duration >= 0) && (action->max_duration < min)) + if ((action->max_duration >= 0) && (action->max_duration < min)) { min = action->max_duration; + DEBUG2("Updating min (duration) with %p: %f", action, min); + } } + DEBUG1("min value : %f", min); + #undef VARIABLE return min; } -e_surf_action_state_t surf_action_get_state(surf_action_t action) -{ - surf_action_state_t action_state = - &(action->resource_type->common_public->states); - - if (action->state_set == action_state->ready_action_set) - return SURF_ACTION_READY; - if (action->state_set == action_state->running_action_set) - return SURF_ACTION_RUNNING; - if (action->state_set == action_state->failed_action_set) - return SURF_ACTION_FAILED; - if (action->state_set == action_state->done_action_set) - return SURF_ACTION_DONE; - return SURF_ACTION_NOT_IN_THE_SYSTEM; -} - -void surf_action_free(surf_action_t * action) -{ - (*action)->resource_type->common_public->action_cancel(*action); - free(*action); - *action = NULL; -} - -void surf_action_change_state(surf_action_t action, - e_surf_action_state_t state) -{ - surf_action_state_t action_state = - &(action->resource_type->common_public->states); - - xbt_swag_remove(action, action->state_set); - - if (state == SURF_ACTION_READY) - action->state_set = action_state->ready_action_set; - else if (state == SURF_ACTION_RUNNING) - action->state_set = action_state->running_action_set; - else if (state == SURF_ACTION_FAILED) - action->state_set = action_state->failed_action_set; - else if (state == SURF_ACTION_DONE) - action->state_set = action_state->done_action_set; - else - action->state_set = NULL; - - if (action->state_set) - xbt_swag_insert(action, action->state_set); -} - -void surf_action_set_data(surf_action_t action, - void *data) -{ - action->data=data; -} - -/* HACKHACK: msg_global must be set to a sensible value (like NULL) to use the logging mecanisme - * since log_default_appender use xbt_procname which, in SG, is defined in src/msg/m_process.c - * (in RL, xbt_procname is defined in src/gras/Virtu/rl_process.c) - */ -extern void *msg_global; +XBT_LOG_EXTERNAL_CATEGORY(surf_cpu); +XBT_LOG_EXTERNAL_CATEGORY(surf_kernel); +XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange); +XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy); +XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin); +XBT_LOG_EXTERNAL_CATEGORY(surf_network); +XBT_LOG_EXTERNAL_CATEGORY(surf_trace); +XBT_LOG_EXTERNAL_CATEGORY(surf_parse); +XBT_LOG_EXTERNAL_CATEGORY(surf_timer); +XBT_LOG_EXTERNAL_CATEGORY(surf_workstation); +XBT_LOG_EXTERNAL_CATEGORY(surf_config); +XBT_LOG_EXTERNAL_CATEGORY(surf_route); + +#ifdef HAVE_GTNETS +XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets); +#endif void surf_init(int *argc, char **argv) { - int i,j; - char *opt; + /* Connect our log channels: that must be done manually under windows */ + XBT_LOG_CONNECT(surf_cpu, surf); + XBT_LOG_CONNECT(surf_kernel, surf); + XBT_LOG_CONNECT(surf_lagrange, surf); + XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange); + XBT_LOG_CONNECT(surf_maxmin, surf); + XBT_LOG_CONNECT(surf_network, surf); + XBT_LOG_CONNECT(surf_trace, surf); + XBT_LOG_CONNECT(surf_parse, surf); + XBT_LOG_CONNECT(surf_timer, surf); + XBT_LOG_CONNECT(surf_workstation, surf); + XBT_LOG_CONNECT(surf_config, surf); + XBT_LOG_CONNECT(surf_route, surf); + +#ifdef HAVE_GTNETS + XBT_LOG_CONNECT(surf_network_gtnets, surf); +#endif xbt_init(argc, argv); - msg_global=NULL; /* see HACKHACK note above */ - if (!surf_path) { - const char *initial_path = "./"; - surf_path = xbt_dynar_new(sizeof(char*), NULL); - xbt_dynar_push(surf_path,&initial_path); - - for (i=1; i<*argc; i++) { - if (!strncmp(argv[i],"--surf-path=",strlen("--surf-path="))) { - opt=strchr(argv[i],'='); - opt++; - xbt_dynar_push(surf_path,&opt); - /*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 */ - } - } - } - if (!resource_list) - resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL); + if (!model_list) + model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL); if (!history) history = tmgr_history_new(); - if (!maxmin_system) - maxmin_system = lmm_system_new(); + + surf_config_init(argc, argv); + surf_action_init(); + if (MC_IS_ENABLED) + MC_memory_init(); } -static char* path_name = NULL; +#ifdef _XBT_WIN32 +# define FILE_DELIM "\\" +#else +# define FILE_DELIM "/" /* FIXME: move to better location */ +#endif + FILE *surf_fopen(const char *name, const char *mode) { - int i; - char* path = NULL; + unsigned int cpt; + char *path_elm = NULL; + char *buff; FILE *file = NULL; - int path_name_len = 0; /* don't count '\0' */ - - xbt_assert0(name, "Need a non-NULL file name"); - - xbt_assert0(surf_path,"surf_init has to be called before using surf_fopen"); - - if (name[0] == '/') { /* don't mess with absolute file names */ - return fopen(name,mode); - - } else { /* search relative files in the path */ - - if(!path_name) { - path_name_len = strlen(name); - path_name=xbt_new0(char,path_name_len+1); - } - xbt_dynar_foreach(surf_path,i,path) { - if(path_name_len < strlen(path)+strlen(name)+1) { - path_name_len = strlen(path)+strlen(name)+1; /* plus '/' */ - path_name=xbt_realloc(path_name,path_name_len+1); - } - sprintf(path_name,"%s/%s",path, name); - file = fopen(path_name,mode); - if (file) return file; - } + xbt_assert(name); + + if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */ + return fopen(name, mode); + + /* search relative files in the path */ + xbt_dynar_foreach(surf_path, cpt, path_elm) { + buff = bprintf("%s" FILE_DELIM "%s", path_elm, name); + file = fopen(buff, mode); + free(buff); + + if (file) + return file; } - return file; + return NULL; } -void surf_finalize(void) +void surf_exit(void) { - int i; - surf_resource_t resource = NULL; + unsigned int iter; + surf_model_t model = NULL; - xbt_dynar_foreach(resource_list, i, resource) { - resource->common_private->finalize(); - } + surf_config_finalize(); + + xbt_dynar_foreach(model_list, iter, model) + model->model_private->finalize(); + xbt_dynar_free(&model_list); if (maxmin_system) { lmm_system_free(maxmin_system); @@ -215,94 +364,119 @@ void surf_finalize(void) tmgr_history_free(history); history = NULL; } - if (resource_list) - xbt_dynar_free(&resource_list); + surf_action_exit(); - if(surf_path) + if (surf_path) xbt_dynar_free(&surf_path); tmgr_finalize(); surf_parse_lex_destroy(); - if(path_name) { - free(path_name); - path_name = NULL; - } + surf_parse_free_callbacks(); + NOW = 0; /* Just in case the user plans to restart the simulation afterward */ } -double surf_solve(void) +void surf_presolve(void) { - static int first_run = 1; - - double min = -1.0; double next_event_date = -1.0; - double resource_next_action_end = -1.0; + tmgr_trace_event_t event = NULL; double value = -1.0; - surf_resource_object_t resource_obj = NULL; surf_resource_t resource = NULL; - tmgr_trace_event_t event = NULL; - int i; + surf_model_t model = NULL; + unsigned int iter; - if (first_run) { - while ((next_event_date = tmgr_history_next_date(history)) != -1.0) { - if (next_event_date > NOW) - break; - while ((event = - tmgr_history_get_next_event_leq(history, next_event_date, - &value, - (void **) &resource_obj))) { - resource_obj->resource->common_private-> - update_resource_state(resource_obj, event, value); - } - } - xbt_dynar_foreach(resource_list, i, resource) { - resource->common_private->update_actions_state(NOW, 0.0); + DEBUG0 + ("First Run! Let's \"purge\" events and put models in the right state"); + while ((next_event_date = tmgr_history_next_date(history)) != -1.0) { + if (next_event_date > NOW) + break; + while ((event = + tmgr_history_get_next_event_leq(history, next_event_date, + &value, + (void **) &resource))) { + resource->model->model_private->update_resource_state(resource, + event, value, + NOW); } - first_run = 0; - return 0.0; } + xbt_dynar_foreach(model_list, iter, model) + model->model_private->update_actions_state(NOW, 0.0); +} - min = -1.0; +double surf_solve(double max_date) +{ + double min = -1.0; /* duration */ + double next_event_date = -1.0; + double model_next_action_end = -1.0; + double value = -1.0; + surf_resource_t resource = NULL; + surf_model_t model = NULL; + tmgr_trace_event_t event = NULL; + unsigned int iter; - xbt_dynar_foreach(resource_list, i, resource) { - resource_next_action_end = - resource->common_private->share_resources(NOW); - if (((min < 0.0) || (resource_next_action_end < min)) - && (resource_next_action_end >= 0.0)) - min = resource_next_action_end; + if (max_date != -1.0 && max_date != NOW) { + min = max_date - NOW; } - if (min < 0.0) - return -1.0; + DEBUG0("Looking for next action end"); + xbt_dynar_foreach(model_list, iter, model) { + DEBUG1("Running for Resource [%s]", model->name); + model_next_action_end = model->model_private->share_resources(NOW); + DEBUG2("Resource [%s] : next action end = %f", + model->name, model_next_action_end); + if (((min < 0.0) || (model_next_action_end < min)) + && (model_next_action_end >= 0.0)) + min = model_next_action_end; + } + DEBUG1("Next action end : %f", min); + DEBUG0("Looking for next event"); while ((next_event_date = tmgr_history_next_date(history)) != -1.0) { - if (next_event_date > NOW + min) + DEBUG1("Next TRACE event : %f", next_event_date); + if ((min != -1.0) && (next_event_date > NOW + min)) break; + DEBUG0("Updating models"); while ((event = - tmgr_history_get_next_event_leq(history, next_event_date, - &value, - (void **) &resource_obj))) { - if (resource_obj->resource->common_private-> - resource_used(resource_obj)) { - min = next_event_date - NOW; + tmgr_history_get_next_event_leq(history, next_event_date, + &value, + (void **) &resource))) { + if (resource->model->model_private->resource_used(resource)) { + min = next_event_date - NOW; + DEBUG1 + ("This event will modify model state. Next event set to %f", + min); } - /* update state of resource_obj according to new value. Does not touch lmm. + /* update state of model_obj according to new value. Does not touch lmm. It will be modified if needed when updating actions */ - resource_obj->resource->common_private-> - update_resource_state(resource_obj, event, value); + DEBUG2("Calling update_resource_state for resource %s with min %lf", + resource->model->name, min); + resource->model->model_private->update_resource_state(resource, + event, value, + NOW + min); } } - xbt_dynar_foreach(resource_list, i, resource) { - resource->common_private->update_actions_state(NOW, min); - } + /* FIXME: Moved this test to here to avoid stoping simulation if there are actions running on cpus and all cpus are with availability = 0. + * This may cause an infinite loop if one cpu has a trace with periodicity = 0 and the other a trace with periodicity > 0. + * The options are: all traces with same periodicity(0 or >0) or we need to change the way how the events are managed */ + if (min < 0.0) + return -1.0; + + DEBUG1("Duration set to %f", min); NOW = NOW + min; + xbt_dynar_foreach(model_list, iter, model) + model->model_private->update_actions_state(NOW, min); + +#ifdef HAVE_TRACING + TRACE_paje_dump_buffer (0); +#endif + return min; } -double surf_get_clock(void) +XBT_INLINE double surf_get_clock(void) { return NOW; }