X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/624064042aa82cbdb6d83b0f73bba7ba61048bbc..fe657d473727f5f9e71ab147673d902bef1a54d4:/src/simdag/sd_global.c diff --git a/src/simdag/sd_global.c b/src/simdag/sd_global.c index c849609eab..093b77ed65 100644 --- a/src/simdag/sd_global.c +++ b/src/simdag/sd_global.c @@ -1,3 +1,9 @@ +/* Copyright (c) 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 "private.h" #include "xbt/sysdep.h" #include "xbt/dynar.h" @@ -7,197 +13,16 @@ #include "xbt/str.h" #include "xbt/config.h" -XBT_LOG_NEW_CATEGORY(sd,"Logging specific to SimDag"); -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel,sd, - "Logging specific to SimDag (kernel)"); +XBT_LOG_NEW_CATEGORY(sd, "Logging specific to SimDag"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel, sd, + "Logging specific to SimDag (kernel)"); SD_global_t sd_global = NULL; -/* $Id$ */ - -/* Copyright (c) 2007 Arnaud Legrand. - 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. */ - -static int _sd_init_status = 0; /* 0: beginning of time; - 1: pre-inited (cfg_set created); - 2: inited (running) */ -static xbt_cfg_t _sd_cfg_set = NULL; - -/* callback of the workstation_model variable */ -static void _sd_cfg_cb__workstation_model(const char *name, int pos) -{ - char *val; - - xbt_assert0(_sd_init_status < 2, - "Cannot change the model after the initialization"); - - val = xbt_cfg_get_string(_sd_cfg_set, name); - find_model_description(surf_workstation_model_description, - surf_workstation_model_description_size, - val); -} - -/* callback of the cpu_model variable */ -static void _sd_cfg_cb__cpu_model(const char *name, int pos) -{ - char *val; - - xbt_assert0(_sd_init_status < 2, - "Cannot change the model after the initialization"); - - val = xbt_cfg_get_string(_sd_cfg_set, name); - find_model_description(surf_cpu_model_description, - surf_cpu_model_description_size, val); -} - -/* callback of the workstation_model variable */ -static void _sd_cfg_cb__network_model(const char *name, int pos) -{ - char *val; - - xbt_assert0(_sd_init_status < 2, - "Cannot change the model after the initialization"); - - val = xbt_cfg_get_string(_sd_cfg_set, name); - find_model_description(surf_network_model_description, - surf_network_model_description_size, val); -} - XBT_LOG_EXTERNAL_CATEGORY(sd_kernel); XBT_LOG_EXTERNAL_CATEGORY(sd_task); XBT_LOG_EXTERNAL_CATEGORY(sd_workstation); -/* create the config set and register what should be */ -static void sd_config_init(void) -{ - - if (_sd_init_status) - return; /* Already inited, nothing to do */ - - /* Connect our log channels: that must be done manually under windows */ - XBT_LOG_CONNECT(sd_kernel, sd); - XBT_LOG_CONNECT(sd_task, sd); - XBT_LOG_CONNECT(sd_workstation, sd); - - _sd_init_status = 1; - _sd_cfg_set = xbt_cfg_new(); - - xbt_cfg_register(_sd_cfg_set, - "workstation_model", xbt_cfgelm_string, 1, 1, - &_sd_cfg_cb__workstation_model, NULL); - - xbt_cfg_register(_sd_cfg_set, - "cpu_model", xbt_cfgelm_string, 1, 1, - &_sd_cfg_cb__cpu_model, NULL); - xbt_cfg_register(_sd_cfg_set, - "network_model", xbt_cfgelm_string, 1, 1, - &_sd_cfg_cb__network_model, NULL); - - xbt_cfg_set_string(_sd_cfg_set, "workstation_model", "ptask_L07"); -} - -static void sd_config_finalize(void) -{ - - if (!_sd_init_status) - return; /* Not initialized yet. Nothing to do */ - - xbt_cfg_free(&_sd_cfg_set); - _sd_init_status = 0; -} - -static void sd_config(const char *name, va_list pa) -{ - if (!_sd_init_status) { - sd_config_init(); - } - xbt_cfg_set_vargs(_sd_cfg_set, name, pa); -} - - -static void __sd_config_helper(const char *name, ...) -{ - va_list pa; - va_start(pa, name); - - sd_config(name, pa); - - va_end(pa); -} - -static void sd_cfg_control_set(const char *control_string) -{ - /* To split the string in commands, and the cursors */ - xbt_dynar_t set_strings; - char *str; - unsigned int cpt; - - if (!control_string) - return; - DEBUG1("Parse log settings '%s'", control_string); - - /* split the string, and remove empty entries */ - set_strings = xbt_str_split_quoted(control_string); - - if (xbt_dynar_length(set_strings) == 0) { /* vicious user! */ - xbt_dynar_free(&set_strings); - return; - } - /* Parse each entry and either use it right now (if the category was already - created), or store it for further use */ - xbt_dynar_foreach(set_strings, cpt, str) { - char *control_string, *control_string_sav, *name, *value; - - - control_string = control_string_sav = strdup(str); - control_string += strspn(control_string, " "); - name = control_string; - control_string += strcspn(str, ":="); - value = control_string; - *value = 0; - value++; - - xbt_assert1(strlen(name) != 0, "Invalid name for configuration: '%s'", - name); - xbt_assert1(strlen(value) != 0, - "Invalid value for configuration: '%s'", value); - INFO2("setting '%s' to '%s'", name, value); - - __sd_config_helper(name, value); - - free(control_string_sav); - } - xbt_dynar_free(&set_strings); -} - -static void sd_cfg_init(int *argc, char **argv) -{ - int i, j; - char *opt; - - for (i = 1; i < *argc; i++) { - if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) { - opt = strchr(argv[i], '='); - opt++; - - sd_cfg_control_set(opt); - DEBUG1("Did apply '%s' as config setting", 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 */ - } - } -} - /** * \brief Initialises SD internal data * @@ -208,11 +33,18 @@ static void sd_cfg_init(int *argc, char **argv) * \param argv argument list * \see SD_create_environment(), SD_exit() */ -void SD_init(int *argc, char **argv) { +void SD_init(int *argc, char **argv) +{ s_SD_task_t task; - - xbt_assert0( !SD_INITIALISED() , "SD_init() already called"); + + xbt_assert0(!SD_INITIALISED(), "SD_init() already called"); + + /* Connect our log channels: that must be done manually under windows */ + XBT_LOG_CONNECT(sd_kernel, sd); + XBT_LOG_CONNECT(sd_task, sd); + XBT_LOG_CONNECT(sd_workstation, sd); + sd_global = xbt_new(s_SD_global_t, 1); sd_global->workstations = xbt_dict_new(); @@ -224,35 +56,43 @@ void SD_init(int *argc, char **argv) { sd_global->recyclable_route = NULL; sd_global->watch_point_reached = 0; - sd_global->not_scheduled_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->scheduled_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->ready_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->in_fifo_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->running_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->done_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->failed_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->not_scheduled_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->scheduled_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->ready_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->in_fifo_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->running_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->done_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->failed_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); sd_global->task_number = 0; surf_init(argc, argv); - sd_cfg_init(argc, argv); + xbt_cfg_set_string(_surf_cfg_set, "workstation/model", "ptask_L07"); } /** * \brief Reinits the application part of the simulation (experimental feature) - * - * This function allows you to run several simulations on the same platform - * by resetting the part describing the application. - * + * + * This function allows you to run several simulations on the same platform + * by resetting the part describing the application. + * * @warning: this function is still experimental and not perfect. For example, * the simulation clock (and traces usage) is not reset. So, do not use it if * you use traces in your simulation, and do not use absolute timing after using it. * That being said, this function is still precious if you want to compare a bunch of * heuristics on the same platforms. */ -void SD_application_reinit(void) { - +void SD_application_reinit(void) +{ + s_SD_task_t task; - + if (SD_INITIALISED()) { DEBUG0("Recreating the swags..."); xbt_swag_free(sd_global->not_scheduled_task_set); @@ -263,13 +103,20 @@ void SD_application_reinit(void) { xbt_swag_free(sd_global->done_task_set); xbt_swag_free(sd_global->failed_task_set); - sd_global->not_scheduled_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->scheduled_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->ready_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->in_fifo_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->running_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->done_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); - sd_global->failed_task_set = xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->not_scheduled_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->scheduled_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->ready_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->in_fifo_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->running_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->done_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->failed_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); sd_global->task_number = 0; } else { WARN0("SD_application_reinit called before initialization of SimDag"); @@ -292,97 +139,37 @@ void SD_application_reinit(void) { * * \include simgrid.dtd * - * Here is a small example of such a platform: + * Here is a small example of such a platform: * * \include small_platform.xml */ -void SD_create_environment(const char *platform_file) { +void SD_create_environment(const char *platform_file) +{ xbt_dict_cursor_t cursor = NULL; char *name = NULL; void *surf_workstation = NULL; void *surf_link = NULL; - char *workstation_model_name; - int workstation_id = -1; SD_CHECK_INIT_DONE(); DEBUG0("SD_create_environment"); - sd_config_init(); - surf_timer_model_init(platform_file); - - workstation_model_name = - xbt_cfg_get_string(_sd_cfg_set, "workstation_model"); - - DEBUG1("Model : %s", workstation_model_name); - workstation_id = - find_model_description(surf_workstation_model_description, - surf_workstation_model_description_size, - workstation_model_name); - if (!strcmp(workstation_model_name, "compound")) { - xbt_ex_t e; - char *network_model_name = NULL; - char *cpu_model_name = NULL; - int network_id = -1; - int cpu_id = -1; - - TRY { - cpu_model_name = xbt_cfg_get_string(_sd_cfg_set, "cpu_model"); - } CATCH(e) { - if (e.category == bound_error) { - xbt_assert0(0, - "Set a cpu model to use with the 'compound' workstation model"); - xbt_ex_free(e); - } else { - RETHROW; - } - } - - TRY { - network_model_name = - xbt_cfg_get_string(_sd_cfg_set, "network_model"); - } - CATCH(e) { - if (e.category == bound_error) { - xbt_assert0(0, - "Set a network model to use with the 'compound' workstation model"); - xbt_ex_free(e); - } else { - RETHROW; - } - } - - network_id = - find_model_description(surf_network_model_description, - surf_network_model_description_size, - network_model_name); - cpu_id = - find_model_description(surf_cpu_model_description, - surf_cpu_model_description_size, - cpu_model_name); - - surf_cpu_model_description[cpu_id].model_init(platform_file); - surf_network_model_description[network_id].model_init(platform_file); - } - - DEBUG0("Call workstation_model_init"); - surf_workstation_model_description[workstation_id]. - model_init(platform_file); + surf_config_models_setup(platform_file); parse_platform_file(platform_file); - _sd_init_status = 2; - /* now let's create the SD wrappers for workstations and links */ - xbt_dict_foreach(workstation_set, cursor, name, surf_workstation) { + xbt_dict_foreach(surf_model_resource_set(surf_workstation_model), cursor, + name, surf_workstation) { __SD_workstation_create(surf_workstation, NULL); } - xbt_dict_foreach(link_set, cursor, name, surf_link) { + xbt_dict_foreach(surf_model_resource_set(surf_network_model), cursor, name, surf_link) { __SD_link_create(surf_link, NULL); } - DEBUG2("Workstation number: %d, link number: %d", SD_workstation_get_number(), SD_link_get_number()); + DEBUG2("Workstation number: %d, link number: %d", + SD_workstation_get_number(), SD_link_get_number()); } /** @@ -392,21 +179,20 @@ void SD_create_environment(const char *platform_file) { * The simulation will be stopped when its time reaches \a how_long, * when a watch point is reached, or when no more task can be executed. * Then you can call SD_simulate() again. - * + * * \param how_long maximum duration of the simulation (a negative value means no time limit) * \return a NULL-terminated array of \ref SD_task_t whose state has changed. * \see SD_task_schedule(), SD_task_watch() */ -SD_task_t* SD_simulate(double how_long) +SD_task_t *SD_simulate(double how_long) { - double total_time = 0.0; /* we stop the simulation when total_time >= how_long */ + double total_time = 0.0; /* we stop the simulation when total_time >= how_long */ double elapsed_time = 0.0; SD_task_t task, task_safe, dst; SD_dependency_t dependency; surf_action_t action; - SD_task_t *changed_tasks = NULL; - int changed_task_number = 0; - int changed_task_capacity = sd_global->task_number + 1; + SD_task_t *res = NULL; + xbt_dynar_t changed_tasks = xbt_dynar_new(sizeof(SD_task_t), NULL); unsigned int iter; static int first_time = 1; @@ -414,41 +200,29 @@ SD_task_t* SD_simulate(double how_long) INFO0("Starting simulation..."); - /* create the array that will be returned */ - changed_tasks = xbt_new(SD_task_t, changed_task_capacity); - changed_tasks[0] = NULL; - if (first_time) { - surf_presolve(); /* Takes traces into account */ + surf_presolve(); /* Takes traces into account */ first_time = 0; } - if(how_long>0) { - surf_timer_model->extension_public->set(surf_get_clock()+how_long, - NULL,NULL); + if (how_long > 0) { + surf_timer_model->extension.timer.set(surf_get_clock() + how_long, + NULL, NULL); } sd_global->watch_point_reached = 0; /* explore the ready tasks */ xbt_swag_foreach_safe(task, task_safe, sd_global->ready_task_set) { INFO1("Executing task '%s'", SD_task_get_name(task)); - if ((task->state_changed = __SD_task_try_to_run(task))) { - changed_tasks[changed_task_number++] = task; /* replace NULL by the task */ - /* - if (changed_task_number == changed_task_capacity) { - changed_task_capacity *= 2; - changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity); - } - */ - changed_tasks[changed_task_number] = NULL; - } + if (__SD_task_try_to_run(task) && !xbt_dynar_member(changed_tasks, &task)) + xbt_dynar_push(changed_tasks, &task); } /* main loop */ elapsed_time = 0.0; while (elapsed_time >= 0.0 && - (how_long < 0.0 || total_time < how_long) && - !sd_global->watch_point_reached) { + (how_long < 0.0 || total_time < how_long) && + !sd_global->watch_point_reached) { surf_model_t model = NULL; /* dumb variables */ void *fun = NULL; @@ -464,88 +238,68 @@ SD_task_t* SD_simulate(double how_long) /* let's see which tasks are done */ xbt_dynar_foreach(model_list, iter, model) { - while ((action = xbt_swag_extract(model->common_public-> - states.done_action_set))) { - task = action->data; - INFO1("Task '%s' done", SD_task_get_name(task)); - DEBUG0("Calling __SD_task_just_done"); - __SD_task_just_done(task); - DEBUG1("__SD_task_just_done called on task '%s'", SD_task_get_name(task)); - - /* the state has changed */ - if (!task->state_changed) { - task->state_changed = 1; - changed_tasks[changed_task_number++] = task; - /* - if (changed_task_number == changed_task_capacity) { - changed_task_capacity *= 2; - changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity); - } - */ - changed_tasks[changed_task_number] = NULL; - } - - /* remove the dependencies after this task */ - while (xbt_dynar_length(task->tasks_after) > 0) { - xbt_dynar_get_cpy(task->tasks_after, 0, &dependency); - dst = dependency->dst; - SD_task_dependency_remove(task, dst); - - /* is dst ready now? */ - if (__SD_task_is_ready(dst) && !sd_global->watch_point_reached) { - INFO1("Executing task '%s'", SD_task_get_name(dst)); - if (__SD_task_try_to_run(dst)) { - changed_tasks[changed_task_number++] = dst; - /* - if (changed_task_number == changed_task_capacity) { - changed_task_capacity *= 2; - changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity); - } - */ - changed_tasks[changed_task_number] = NULL; - } - } - } + while ((action = xbt_swag_extract(model->states.done_action_set))) { + task = action->data; + task->start_time = surf_workstation_model->action_get_start_time(task->surf_action); + task->finish_time = surf_get_clock(); + INFO1("Task '%s' done", SD_task_get_name(task)); + DEBUG0("Calling __SD_task_just_done"); + __SD_task_just_done(task); + DEBUG1("__SD_task_just_done called on task '%s'", + SD_task_get_name(task)); + + /* the state has changed */ + if (!xbt_dynar_member(changed_tasks, &task)) + xbt_dynar_push(changed_tasks, &task); + + /* remove the dependencies after this task */ + while (xbt_dynar_length(task->tasks_after) > 0) { + xbt_dynar_get_cpy(task->tasks_after, 0, &dependency); + dst = dependency->dst; + SD_task_dependency_remove(task, dst); + + /* is dst ready now? */ + if (__SD_task_is_ready(dst) && !sd_global->watch_point_reached) { + INFO1("Executing task '%s'", SD_task_get_name(dst)); + if (__SD_task_try_to_run(dst) && + !xbt_dynar_member(changed_tasks, &task)) + xbt_dynar_push(changed_tasks, &task); + } + } } /* let's see which tasks have just failed */ - while ((action = xbt_swag_extract(model->common_public->states.failed_action_set))) { - task = action->data; - INFO1("Task '%s' failed", SD_task_get_name(task)); - __SD_task_set_state(task, SD_FAILED); - surf_workstation_model->common_public->action_free(action); - task->surf_action = NULL; - - if (!task->state_changed) { - task->state_changed = 1; - changed_tasks[changed_task_number++] = task; - /* - if (changed_task_number == changed_task_capacity) { - changed_task_capacity *= 2; - changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity); - } - */ - changed_tasks[changed_task_number] = NULL; - } + while ((action = xbt_swag_extract(model->states.failed_action_set))) { + task = action->data; + task->start_time = surf_workstation_model->action_get_start_time(task->surf_action); + task->finish_time = surf_get_clock(); + INFO1("Task '%s' failed", SD_task_get_name(task)); + __SD_task_set_state(task, SD_FAILED); + surf_workstation_model->action_unref(action); + task->surf_action = NULL; + + if (!xbt_dynar_member(changed_tasks, &task)) + xbt_dynar_push(changed_tasks, &task); } } - while (surf_timer_model->extension_public->get(&fun,(void*)&arg)) { + while (surf_timer_model->extension.timer.get(&fun, (void *) &arg)) { } } - /* we must reset every task->state_changed */ - iter = 0; - while (changed_tasks[iter] != NULL) { - changed_tasks[iter]->state_changed = 0; - iter++; + res = xbt_new0(SD_task_t, (xbt_dynar_length(changed_tasks) + 1)); + + xbt_dynar_foreach(changed_tasks, iter, task) { + res[iter] = task; } + xbt_dynar_free(&changed_tasks); INFO0("Simulation finished"); - DEBUG3("elapsed_time = %f, total_time = %f, watch_point_reached = %d", elapsed_time, total_time, sd_global->watch_point_reached); + DEBUG3("elapsed_time = %f, total_time = %f, watch_point_reached = %d", + elapsed_time, total_time, sd_global->watch_point_reached); DEBUG1("current time = %f", surf_get_clock()); - return changed_tasks; + return res; } /** @@ -553,7 +307,8 @@ SD_task_t* SD_simulate(double how_long) * * \return the current clock, in second */ -double SD_get_clock(void) { +double SD_get_clock(void) +{ SD_CHECK_INIT_DONE(); return surf_get_clock(); @@ -567,7 +322,8 @@ double SD_get_clock(void) { * * \see SD_init(), SD_task_destroy() */ -void SD_exit(void) { +void SD_exit(void) +{ if (SD_INITIALISED()) { DEBUG0("Destroying workstation and link dictionaries..."); xbt_dict_free(&sd_global->workstations); @@ -597,8 +353,7 @@ void SD_exit(void) { DEBUG0("Exiting Surf..."); surf_exit(); - } - else { + } else { WARN0("SD_exit() called, but SimDag is not running"); /* we cannot use exceptions here because xbt is not running! */ }