X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7093fb34d72a218454bc09aff6f970d68442e0ce..59ee07d949014eace7f574354a69fbba0fd2be4e:/src/simdag/sd_global.c diff --git a/src/simdag/sd_global.c b/src/simdag/sd_global.c index 254f7c0adf..eb0b892ca1 100644 --- a/src/simdag/sd_global.c +++ b/src/simdag/sd_global.c @@ -1,169 +1,478 @@ -#include "simdag/simdag.h" +/* 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" #include "surf/surf.h" +#include "xbt/ex.h" +#include "xbt/log.h" +#include "xbt/str.h" +#include "xbt/config.h" +#include "instr/instr_private.h" +#include "surf/surfxml_parse.h" +#ifdef HAVE_LUA +#include +#include +#include +#endif + +#ifdef HAVE_JEDULE +#include "instr/jedule/jedule_sd_binding.h" +#endif + +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; -/* Initialises SD internal data. This function should be called before any other SD function. +XBT_LOG_EXTERNAL_CATEGORY(sd_kernel); +XBT_LOG_EXTERNAL_CATEGORY(sd_task); +XBT_LOG_EXTERNAL_CATEGORY(sd_workstation); + +/** + * \brief Initialises SD internal data + * + * This function must be called before any other SD function. Then you + * should call SD_create_environment(). + * + * \param argc argument number + * \param argv argument list + * \see SD_create_environment(), SD_exit() */ -void SD_init(int *argc, char **argv) { - xbt_assert0(sd_global == NULL, "SD_init already called"); - - sd_global = xbt_new0(s_SD_global_t, 1); - sd_global->workstations = xbt_dict_new(); - sd_global->workstation_count = 0; - sd_global->links = xbt_dict_new(); - sd_global->tasks = xbt_dynar_new(sizeof(SD_task_t), NULL); - sd_global->watch_point_reached = 0; +void SD_init(int *argc, char **argv) +{ +#ifdef HAVE_TRACING + TRACE_global_init(argc, argv); +#endif s_SD_task_t task; - 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->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)); + + xbt_assert(!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->workstation_list = NULL; + sd_global->link_list = NULL; + sd_global->recyclable_route = NULL; + sd_global->watch_point_reached = 0; + + sd_global->task_mallocator=xbt_mallocator_new(65536, SD_task_new_f,SD_task_free_f,SD_task_recycle_f); + + sd_global->not_scheduled_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->schedulable_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->runnable_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->return_set = + xbt_swag_new(xbt_swag_offset(task, return_hookup)); + sd_global->task_number = 0; surf_init(argc, argv); + + xbt_cfg_setdefault_string(_surf_cfg_set, "workstation/model", + "ptask_L07"); + +#ifdef HAVE_TRACING + TRACE_start (); +#endif + +#ifdef HAVE_JEDULE + jedule_sd_init(); +#endif + + XBT_DEBUG("ADD SD LEVELS"); + SD_HOST_LEVEL = xbt_lib_add_level(host_lib,__SD_workstation_destroy); + SD_LINK_LEVEL = xbt_lib_add_level(link_lib,__SD_link_destroy); } -/* Creates the environnement described in a xml file of a platform description. +/** + * \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. + * + * @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_create_environment(const char *platform_file) { - xbt_dict_cursor_t cursor = NULL; - char *name = NULL; - void *surf_workstation = NULL; - void *surf_link = NULL; +void SD_application_reinit(void) +{ - SD_CHECK_INIT_DONE(); + s_SD_task_t task; + + if (SD_INITIALISED()) { + XBT_DEBUG("Recreating the swags..."); + xbt_swag_free(sd_global->not_scheduled_task_set); + xbt_swag_free(sd_global->schedulable_task_set); + xbt_swag_free(sd_global->scheduled_task_set); + xbt_swag_free(sd_global->runnable_task_set); + xbt_swag_free(sd_global->in_fifo_task_set); + xbt_swag_free(sd_global->running_task_set); + xbt_swag_free(sd_global->done_task_set); + xbt_swag_free(sd_global->failed_task_set); - surf_timer_resource_init(platform_file); /* tell Surf to create the environnement */ + sd_global->not_scheduled_task_set = + xbt_swag_new(xbt_swag_offset(task, state_hookup)); + sd_global->schedulable_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->runnable_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; - - /*printf("surf_workstation_resource = %p, workstation_set = %p\n", surf_workstation_resource, workstation_set); - printf("surf_network_resource = %p, network_link_set = %p\n", surf_network_resource, network_link_set);*/ +#ifdef HAVE_JEDULE + jedule_sd_cleanup(); + jedule_sd_init(); +#endif - /*surf_workstation_resource_init_KCCFLN05(platform_file);*/ - surf_workstation_resource_init_CLM03(platform_file); + } else { + XBT_WARN("SD_application_reinit called before initialization of SimDag"); + /* we cannot use exceptions here because xbt is not running! */ + } - /*printf("surf_workstation_resource = %p, workstation_set = %p\n", surf_workstation_resource, workstation_set); - printf("surf_network_resource = %p, network_link_set = %p\n", surf_network_resource, network_link_set);*/ +} +/** + * \brief Creates the environment + * + * The environment (i.e. the \ref SD_workstation_management "workstations" and the + * \ref SD_link_management "links") is created with the data stored in the given XML + * platform file. + * + * \param platform_file name of an XML file describing the environment to create + * \see SD_workstation_management, SD_link_management + * + * The XML file follows this DTD: + * + * \include simgrid.dtd + * + * Here is a small example of such a platform: + * + * \include small_platform.xml + */ +void SD_create_environment(const char *platform_file) +{ + xbt_lib_cursor_t cursor = NULL; + char *name = NULL; + void **surf_workstation = NULL; + void **surf_link = NULL; + + platform_filename = xbt_strdup(platform_file); + + // Reset callbacks + surf_parse_reset_callbacks(); + // Add config callbacks + surf_parse_add_callback_config(); + SD_CHECK_INIT_DONE(); + parse_platform_file(platform_file); + surf_config_models_create_elms(); /* now let's create the SD wrappers for workstations and links */ - xbt_dict_foreach(workstation_set, cursor, name, surf_workstation) { - __SD_workstation_create(surf_workstation, NULL); + xbt_lib_foreach(host_lib, cursor, name, surf_workstation){ + if(surf_workstation[SURF_WKS_LEVEL]) + __SD_workstation_create(surf_workstation[SURF_WKS_LEVEL], NULL); } - xbt_dict_foreach(network_link_set, cursor, name, surf_link) { - __SD_link_create(surf_link, NULL); + xbt_lib_foreach(link_lib, cursor, name, surf_link) { + if(surf_link[SURF_LINK_LEVEL]) + __SD_link_create(surf_link[SURF_LINK_LEVEL], NULL); } + + XBT_DEBUG("Workstation number: %d, link number: %d", + SD_workstation_get_number(), SD_link_get_number()); +#ifdef HAVE_JEDULE + jedule_setup_platform(); +#endif } -/* Launches the simulation. Returns a NULL-terminated array of SD_task_t whose state has changed. +/** + * \brief Launches the simulation. + * + * The function will execute the \ref SD_RUNNABLE runnable tasks. + * If \a how_long is positive, then the simulation will be stopped either + * when time reaches \a how_long or when a watch point is reached. + * A nonpositive value for \a how_long means no time limit, in which case + * the simulation will be stopped either 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) -{ - /* TODO */ - double total_time = 0.0; /* we stop the simulation when total_time >= how_long */ - double elapsed_time = 0.0; - int i; +xbt_dynar_t SD_simulate(double how_long) { + xbt_dynar_t changed_tasks = xbt_dynar_new(sizeof(SD_task_t), NULL); SD_task_t task; - surf_action_t surf_action; - surf_solve(); /* Takes traces into account. Returns 0.0 */ + SD_simulate_swag(how_long); + while( (task = xbt_swag_extract(sd_global->return_set)) != NULL) { + xbt_dynar_push(changed_tasks, &task); + } + + return changed_tasks; +} + +xbt_swag_t SD_simulate_swag(double 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; + unsigned int iter, depcnt; + static int first_time = 1; + + SD_CHECK_INIT_DONE(); + + if (first_time) { + XBT_VERB("Starting simulation..."); + + surf_presolve(); /* Takes traces into account */ + first_time = 0; + } + + sd_global->watch_point_reached = 0; + + while(xbt_swag_extract(sd_global->return_set)) {} + + /* explore the runnable tasks */ + xbt_swag_foreach(task, sd_global->runnable_task_set) { + XBT_VERB("Executing task '%s'", SD_task_get_name(task)); + if (__SD_task_try_to_run(task)) + xbt_swag_insert(task,sd_global->return_set); + } /* main loop */ - while (elapsed_time >= 0.0 && total_time < how_long && !sd_global->watch_point_reached) { - for (i = 0 ; i < xbt_dynar_length(sd_global->tasks); i++) { - xbt_dynar_get_cpy(sd_global->tasks, i, &task); - printf("Examining task '%s'...\n", SD_task_get_name(task)); - - /* if the task is scheduled and the dependencies are satisfied, - we can execute the task */ - if (SD_task_get_state(task) == SD_SCHEDULED) { - printf("Task '%s' is scheduled.\n", SD_task_get_name(task)); - - if (xbt_dynar_length(task->tasks_before) == 0) { - printf("The dependencies are satisfied. Executing task '%s'\n", SD_task_get_name(task)); - surf_action = __SD_task_run(task); - } - else { - printf("Cannot execute task '%s' because some depencies are not satisfied.\n", SD_task_get_name(task)); - } - } - else { - printf("Task '%s' is not scheduled. Nothing to do.\n", SD_task_get_name(task)); - } - } - elapsed_time = surf_solve(); + elapsed_time = 0.0; + while (elapsed_time >= 0.0 && + (how_long < 0.0 || total_time < how_long) && + !sd_global->watch_point_reached) { + surf_model_t model = NULL; + /* dumb variables */ + + + XBT_DEBUG("Total time: %f", total_time); + + elapsed_time = surf_solve(how_long > 0 ? surf_get_clock() + how_long : -1.0); + XBT_DEBUG("surf_solve() returns %f", elapsed_time); if (elapsed_time > 0.0) total_time += elapsed_time; - printf("Total time: %f\n", total_time); - } - return NULL; -} + /* let's see which tasks are done */ + xbt_dynar_foreach(model_list, iter, model) { + 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(); + XBT_VERB("Task '%s' done", SD_task_get_name(task)); + XBT_DEBUG("Calling __SD_task_just_done"); + __SD_task_just_done(task); + XBT_DEBUG("__SD_task_just_done called on task '%s'", + SD_task_get_name(task)); -void SD_test() { - /* temporary test to explore the workstations and the links */ - xbt_dict_cursor_t cursor = NULL; - char *name = NULL; - SD_workstation_t workstation = NULL; - double power, available_power, bandwidth, latency; - SD_link_t link = NULL; + /* the state has changed */ + xbt_swag_insert(task,sd_global->return_set); - surf_solve(); + /* remove the dependencies after this task */ + xbt_dynar_foreach(task->tasks_after, depcnt, dependency) { + dst = dependency->dst; + if (dst->unsatisfied_dependencies > 0) + dst->unsatisfied_dependencies--; + if (dst->is_not_ready > 0) + dst->is_not_ready--; - xbt_dict_foreach(sd_global->workstations, cursor, name, workstation) { - power = SD_workstation_get_power(workstation); - available_power = SD_workstation_get_available_power(workstation); - printf("Workstation name: %s, power: %f Mflop/s, available power: %f%%\n", name, power, (available_power*100)); - } + if (!(dst->unsatisfied_dependencies)) { + if (__SD_task_is_scheduled(dst)) + __SD_task_set_state(dst, SD_RUNNABLE); + else + __SD_task_set_state(dst, SD_SCHEDULABLE); + } + + if (SD_task_get_kind(dst) == SD_TASK_COMM_E2E) { + SD_dependency_t comm_dep; + SD_task_t comm_dst; + xbt_dynar_get_cpy(dst->tasks_after, 0, &comm_dep); + comm_dst = comm_dep->dst; + if (__SD_task_is_not_scheduled(comm_dst) && + comm_dst->is_not_ready > 0) { + comm_dst->is_not_ready--; + + if (!(comm_dst->is_not_ready)) { + __SD_task_set_state(comm_dst, SD_SCHEDULABLE); + } + } + } + + /* is dst runnable now? */ + if (__SD_task_is_runnable(dst) + && !sd_global->watch_point_reached) { + XBT_VERB("Executing task '%s'", SD_task_get_name(dst)); + if (__SD_task_try_to_run(dst)) + xbt_swag_insert(dst,sd_global->return_set); + } + } + } - xbt_dict_foreach(sd_global->links, cursor, name, link) { - bandwidth = SD_link_get_current_bandwidth(link); - latency = SD_link_get_current_latency(link); - printf("Link name: %s, bandwidth: %f, latency: %f\n", name, bandwidth, latency); + /* let's see which tasks have just failed */ + 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(); + XBT_VERB("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; + + xbt_swag_insert(task,sd_global->return_set); + } + } } - /* test the route between two workstations */ - SD_workstation_t src, dst; - xbt_dict_cursor_first(sd_global->workstations, &cursor); - xbt_dict_cursor_get_or_free(&cursor, &name, (void**) &src); - xbt_dict_cursor_step(cursor); - xbt_dict_cursor_get_or_free(&cursor, &name, (void**) &dst); - xbt_dict_cursor_free(&cursor); - - SD_link_t *route = SD_workstation_route_get_list(src, dst); - int route_size = SD_workstation_route_get_size(src, dst); - - printf("Route between %s and %s (%d links) : ", SD_workstation_get_name(src), SD_workstation_get_name(dst), route_size); - int i; - for (i = 0; i < route_size; i++) { - printf("%s ", SD_link_get_name(route[i])); + if (!sd_global->watch_point_reached && how_long<0){ + if (xbt_swag_size(sd_global->done_task_set) < sd_global->task_number){ + XBT_WARN("Simulation is finished but some tasks are still not done"); + xbt_swag_foreach_safe (task, task_safe,sd_global->not_scheduled_task_set){ + XBT_WARN("%s is in SD_NOT_SCHEDULED state", SD_task_get_name(task)); + } + xbt_swag_foreach_safe (task, task_safe,sd_global->schedulable_task_set){ + XBT_WARN("%s is in SD_SCHEDULABLE state", SD_task_get_name(task)); + } + xbt_swag_foreach_safe (task, task_safe,sd_global->scheduled_task_set){ + XBT_WARN("%s is in SD_SCHEDULED state", SD_task_get_name(task)); + } + } } - printf("\n"); + + XBT_DEBUG("elapsed_time = %f, total_time = %f, watch_point_reached = %d", + elapsed_time, total_time, sd_global->watch_point_reached); + XBT_DEBUG("current time = %f", surf_get_clock()); + + return sd_global->return_set; } -/* Destroys all SD internal data. This function should be called when the simulation is over. - * The tasks should have been destroyed first. +/** + * \brief Returns the current clock + * + * \return the current clock, in second */ -void SD_exit() { - if (sd_global != NULL) { - xbt_dict_free(&sd_global->workstations); - xbt_dict_free(&sd_global->links); - xbt_dynar_free(&sd_global->tasks); - xbt_free(sd_global); +double SD_get_clock(void) +{ + SD_CHECK_INIT_DONE(); + + return surf_get_clock(); +} + +/** + * \brief Destroys all SD internal data + * + * This function should be called when the simulation is over. Don't forget also to destroy + * the tasks. + * + * \see SD_init(), SD_task_destroy() + */ +void SD_exit(void) +{ +#ifdef HAVE_TRACING + TRACE_surf_release(); +#endif + + if (SD_INITIALISED()) { + xbt_mallocator_free(sd_global->task_mallocator); + + XBT_DEBUG("Destroying workstation and link arrays if necessary..."); + if (sd_global->workstation_list != NULL) + xbt_free(sd_global->workstation_list); + + if (sd_global->link_list != NULL) + xbt_free(sd_global->link_list); + if (sd_global->recyclable_route != NULL) + xbt_free(sd_global->recyclable_route); + + XBT_DEBUG("Destroying the swags..."); xbt_swag_free(sd_global->not_scheduled_task_set); + xbt_swag_free(sd_global->schedulable_task_set); xbt_swag_free(sd_global->scheduled_task_set); + xbt_swag_free(sd_global->runnable_task_set); + xbt_swag_free(sd_global->in_fifo_task_set); xbt_swag_free(sd_global->running_task_set); xbt_swag_free(sd_global->done_task_set); xbt_swag_free(sd_global->failed_task_set); + xbt_swag_free(sd_global->return_set); + XBT_DEBUG("Exiting Surf..."); surf_exit(); + + xbt_free(sd_global); + sd_global = NULL; + +#ifdef HAVE_TRACING + TRACE_end(); +#endif +#ifdef HAVE_JEDULE + jedule_sd_dump(); + jedule_sd_cleanup(); +#endif + + } else { + XBT_WARN("SD_exit() called, but SimDag is not running"); + /* we cannot use exceptions here because xbt is not running! */ + } +} + +/** + * \brief load script file + */ + +void SD_load_environment_script(const char *script_file) +{ +#ifdef HAVE_LUA + lua_State *L = lua_open(); + luaL_openlibs(L); + + if (luaL_loadfile(L, script_file) || lua_pcall(L, 0, 0, 0)) { + printf("error: %s\n", lua_tostring(L, -1)); + return; } +#else + xbt_die + ("Lua is not available!! to call SD_load_environment_script, lua should be available..."); +#endif + return; }