+++ /dev/null
-/* Copyright (c) 2006-2016. 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 "src/simdag/simdag_private.h"
-#include "instr/instr_interface.h"
-#include "xbt/sysdep.h"
-#include "xbt/dynar.h"
-#include "surf/surf.h"
-#include "simgrid/sg_config.h"
-#include "simgrid/host.h"
-#include "xbt/ex.h"
-#include "xbt/log.h"
-#include "xbt/str.h"
-#include "xbt/config.h"
-#include "surf/surfxml_parse.h"
-#ifdef HAVE_LUA
-#include <lua.h>
-#include <lauxlib.h>
-#include <lualib.h>
-#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;
-
-/**
- * \brief Initializes 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)
-{
- TRACE_global_init(argc, argv);
-
- s_SD_task_t task;
-
- xbt_assert(sd_global == NULL, "SD_init() already called");
-
- 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(_sg_cfg_set, "host/model",
- "ptask_L07");
-
-#ifdef HAVE_JEDULE
- jedule_sd_init();
-#endif
-
- XBT_DEBUG("ADD SD LEVELS");
- SD_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,__SD_storage_destroy);
-
- if (_sg_cfg_exit_asap) {
- SD_exit();
- exit(0);
- }
-}
-
-/** \brief set a configuration variable
- *
- * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
- *
- * Example:
- * SD_config("host/model","default");
- */
-void SD_config(const char *key, const char *value){
- xbt_assert(sd_global,"ERROR: Please call SD_init() before using SD_config()");
- xbt_cfg_set_as_string(_sg_cfg_set, key, value);
-}
-
-
-/**
- * \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_application_reinit(void)
-{
-
- s_SD_task_t task;
-
- SD_task_t done_task, next_done_task;
- xbt_die("This function is not working since the C++ links and others. Please report the problem if you really need that function.");
-
- 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->failed_task_set);
-
- 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));
- xbt_swag_foreach_safe(done_task, next_done_task, sd_global->done_task_set){
- if (xbt_dynar_is_empty(done_task->tasks_before)){
- __SD_task_set_state(done_task, SD_SCHEDULABLE);
- } else{
- __SD_task_set_state(done_task, SD_NOT_SCHEDULED);
- done_task->unsatisfied_dependencies =
- xbt_dynar_length(done_task->tasks_before);
- done_task->is_not_ready = done_task->unsatisfied_dependencies;
- }
- free(done_task->workstation_list);
- done_task->workstation_list = NULL;
- done_task->workstation_nb = 0;
- }
-
- xbt_swag_free(sd_global->done_task_set);
-
- 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;
-
-
-#ifdef HAVE_JEDULE
- jedule_sd_dump();
- jedule_sd_cleanup();
- jedule_sd_init();
-#endif
-}
-
-/**
- * \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_storage = NULL;
-
- parse_platform_file(platform_file);
-
- /* now let's create the SD wrappers for workstations, storages and links */
- {
- xbt_dict_cursor_t cursor = NULL;
- simgrid_Host* host = NULL;
- xbt_dict_foreach(host_list, cursor, name, host){
- __SD_workstation_create((const char*)name);
- }
- }
-
- xbt_lib_foreach(storage_lib, cursor, name, surf_storage) {
- if(surf_storage[SURF_STORAGE_LEVEL])
- __SD_storage_create(surf_storage[SURF_STORAGE_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
-}
-
-/**
- * \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 non-positive 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 dynar of \ref SD_task_t whose state has changed.
- * \see SD_task_schedule(), SD_task_watch()
- */
-
-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;
-
- 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;
-
- if (first_time) {
- XBT_VERB("Starting simulation...");
-
- surf_presolve(); /* Takes traces into account */
- first_time = 0;
- }
-
- XBT_VERB("Run simulation for %f seconds", how_long);
- sd_global->watch_point_reached = 0;
-
- xbt_swag_reset(sd_global->return_set);
-
- /* explore the runnable tasks */
- xbt_swag_foreach_safe(task, task_safe, 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 */
- elapsed_time = 0.0;
- while (elapsed_time >= 0.0 &&
- (how_long < 0.0 || 0.00001 < (how_long -total_time)) &&
- !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 - total_time: -1.0);
- XBT_DEBUG("surf_solve() returns %f", elapsed_time);
- if (elapsed_time > 0.0)
- total_time += elapsed_time;
-
- /* let's see which tasks are done */
- xbt_dynar_foreach(all_existing_models, iter, model) {
- while ((action = surf_model_extract_done_action_set(model))) {
- task = surf_action_get_data(action);
- task->start_time = surf_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));
-
- /* the state has changed */
- xbt_swag_insert(task,sd_global->return_set);
-
- /* 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_DEBUG("Released a dependency on %s: %d remain(s). Became schedulable if %d=0",
- SD_task_get_name(dst), dst->unsatisfied_dependencies,
- dst->is_not_ready);
-
- 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_is_not_scheduled(dst) && !(dst->is_not_ready)) {
- __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--;
-
- XBT_DEBUG("%s is a transfer, %s may be ready now if %d=0",
- SD_task_get_name(dst), SD_task_get_name(comm_dst),
- 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);
- }
- }
- }
-
- /* let's see which tasks have just failed */
- while ((action = surf_model_extract_failed_action_set(model))) {
- task = surf_action_get_data(action);
- task->start_time = surf_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_action_unref(action);
- task->surf_action = NULL;
-
- xbt_swag_insert(task,sd_global->return_set);
- }
- }
- }
-
- 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 %d tasks are still not done",
- (sd_global->task_number - xbt_swag_size(sd_global->done_task_set)));
- 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));
- }
- }
- }
-
- 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;
-}
-
-/**
- * \brief Returns the current clock
- *
- * \return the current clock, in second
- */
-double SD_get_clock(void) {
- return surf_get_clock();
-}
-
-/**
- * \brief Destroys all SD internal data
- *
- * This function should be called when the simulation is over. Don't forget
- * to destroy too.
- *
- * \see SD_init(), SD_task_destroy()
- */
-void SD_exit(void)
-{
- TRACE_surf_resource_utilization_release();
-
- xbt_mallocator_free(sd_global->task_mallocator);
-
- XBT_DEBUG("Destroying workstation and link arrays...");
- xbt_free(sd_global->workstation_list);
- xbt_free(sd_global->link_list);
- 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);
-
- TRACE_end();
-
- xbt_free(sd_global);
- sd_global = NULL;
-
-#ifdef HAVE_JEDULE
- jedule_sd_dump();
- jedule_sd_cleanup();
- jedule_sd_exit();
-#endif
-
- XBT_DEBUG("Exiting Surf...");
- surf_exit();
-}
