X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e7d939c32e832e22e45b44ec1bc21999d64c5554..5a44668d9c4fae9baed7798d707fdf843446f2fc:/src/simdag/sd_global.cpp diff --git a/src/simdag/sd_global.cpp b/src/simdag/sd_global.cpp index f6fb1dcd66..e466ff038d 100644 --- a/src/simdag/sd_global.cpp +++ b/src/simdag/sd_global.cpp @@ -1,133 +1,38 @@ -/* Copyright (c) 2006-2016. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2006-2019. 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 "instr/instr_interface.h" -#include "simgrid/sg_config.h" -#include "simgrid/host.h" -#include "src/simdag/simdag_private.h" +#include "simdag_private.hpp" +#include "simgrid/kernel/resource/Action.hpp" +#include "simgrid/kernel/resource/Model.hpp" +#include "simgrid/s4u/Engine.hpp" +#include "simgrid/sg_config.hpp" #include "src/surf/surf_interface.hpp" -#include "simgrid/s4u/engine.hpp" - -#if HAVE_JEDULE -#include "simgrid/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 = nullptr; - -/** - * \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) -{ - xbt_assert(sd_global == nullptr, "SD_init() already called"); - - sd_global = xbt_new(s_SD_global_t, 1); - sd_global->watch_point_reached = false; - - sd_global->task_mallocator=xbt_mallocator_new(65536, SD_task_new_f, SD_task_free_f, SD_task_recycle_f); - - sd_global->initial_tasks = new std::set(); - sd_global->runnable_tasks = new std::set(); - sd_global->completed_tasks = new std::set(); - sd_global->return_set = xbt_dynar_new(sizeof(SD_task_t), nullptr); - - surf_init(argc, argv); +simgrid::sd::Global *sd_global = nullptr; - xbt_cfg_setdefault_string("host/model", "ptask_L07"); - -#if HAVE_JEDULE - jedule_sd_init(); -#endif - - 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(key, value); -} +namespace simgrid{ +namespace sd{ -/** - * \brief Creates the environment - * - * The environment (i.e. the \ref SD_host_api "hosts" and the \ref SD_link_api "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_host_api, SD_link_api - * - * 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) -{ - simgrid::s4u::Engine::instance()->loadPlatform(platform_file); - - XBT_DEBUG("Workstation number: %zu, link number: %d", sg_host_count(), sg_link_count()); -#if HAVE_JEDULE - jedule_setup_platform(); -#endif - XBT_VERB("Starting simulation..."); - surf_presolve(); /* Takes traces into account */ -} - -/** - * \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) { +std::set* simulate(double how_long){ XBT_VERB("Run simulation for %f seconds", how_long); sd_global->watch_point_reached = false; - xbt_dynar_reset(sd_global->return_set); + sd_global->return_set.clear(); /* explore the runnable tasks */ - while(!sd_global->runnable_tasks->empty()) - SD_task_run(*(sd_global->runnable_tasks->begin())); + while (not sd_global->runnable_tasks.empty()) + SD_task_run(*(sd_global->runnable_tasks.begin())); double elapsed_time = 0.0; double total_time = 0.0; /* main loop */ - while (elapsed_time >= 0 && (how_long < 0 || 0.00001 < (how_long -total_time)) && !sd_global->watch_point_reached) { - surf_model_t model = nullptr; + while (elapsed_time >= 0 && (how_long < 0 || 0.00001 < (how_long - total_time)) && + not sd_global->watch_point_reached) { XBT_DEBUG("Total time: %f", total_time); @@ -137,20 +42,19 @@ xbt_dynar_t SD_simulate(double how_long) { total_time += elapsed_time; /* let's see which tasks are done */ - unsigned int iter; - xbt_dynar_foreach(all_existing_models, iter, model) { - surf_action_t action = surf_model_extract_done_action_set(model); - while (action != nullptr) { - SD_task_t task = static_cast(action->getData()); + for (auto const& model : all_existing_models) { + simgrid::kernel::resource::Action* action = model->extract_done_action(); + while (action != nullptr && action->get_data() != nullptr) { + SD_task_t task = static_cast(action->get_data()); XBT_VERB("Task '%s' done", SD_task_get_name(task)); SD_task_set_state(task, SD_DONE); /* the state has changed. Add it only if it's the first change */ - if (xbt_dynar_member(sd_global->return_set, &task) == 0) - xbt_dynar_push(sd_global->return_set, &task); + if (sd_global->return_set.find(task) == sd_global->return_set.end()) + sd_global->return_set.insert(task); /* remove the dependencies after this task */ - for (auto succ : *task->successors) { + for (auto const& succ : *task->successors) { succ->predecessors->erase(task); succ->inputs->erase(task); XBT_DEBUG("Release dependency on %s: %zu remain(s). Becomes schedulable if %zu=0", SD_task_get_name(succ), @@ -162,12 +66,12 @@ xbt_dynar_t SD_simulate(double how_long) { if (SD_task_get_state(succ) == SD_SCHEDULED && succ->predecessors->empty() && succ->inputs->empty()) SD_task_set_state(succ, SD_RUNNABLE); - if (SD_task_get_state(succ) == SD_RUNNABLE && !sd_global->watch_point_reached) + if (SD_task_get_state(succ) == SD_RUNNABLE && not sd_global->watch_point_reached) SD_task_run(succ); } task->successors->clear(); - for (auto output : *task->outputs) { + for (auto const& output : *task->outputs) { output->start_time = task->finish_time; output->predecessors->erase(task); if (SD_task_get_state(output) == SD_SCHEDULED) @@ -181,38 +85,138 @@ xbt_dynar_t SD_simulate(double how_long) { SD_task_get_name(output), SD_task_get_name(comm_dst), comm_dst->predecessors->size()); SD_task_set_state(comm_dst, SD_SCHEDULABLE); } - if (SD_task_get_state(output) == SD_RUNNABLE && !sd_global->watch_point_reached) + if (SD_task_get_state(output) == SD_RUNNABLE && not sd_global->watch_point_reached) SD_task_run(output); } task->outputs->clear(); - action = surf_model_extract_done_action_set(model); + action = model->extract_done_action(); } /* let's see which tasks have just failed */ - action = surf_model_extract_failed_action_set(model); + action = model->extract_failed_action(); while (action != nullptr) { - SD_task_t task = static_cast(action->getData()); + SD_task_t task = static_cast(action->get_data()); XBT_VERB("Task '%s' failed", SD_task_get_name(task)); SD_task_set_state(task, SD_FAILED); - xbt_dynar_push(sd_global->return_set, &task); - action = surf_model_extract_failed_action_set(model); + sd_global->return_set.insert(task); + action = model->extract_failed_action(); } } } - if (!sd_global->watch_point_reached && how_long < 0 && !sd_global->initial_tasks->empty()) { - XBT_WARN("Simulation is finished but %zu tasks are still not done", sd_global->initial_tasks->size()); - static const char* state_names[] = - { "SD_NOT_SCHEDULED", "SD_SCHEDULABLE", "SD_SCHEDULED", "SD_RUNNABLE", "SD_RUNNING", "SD_DONE","SD_FAILED" }; - for (auto t : *sd_global->initial_tasks) - XBT_WARN("%s is in %s state", SD_task_get_name(t), state_names[SD_task_get_state(t)]); + if (not sd_global->watch_point_reached && how_long < 0 && not sd_global->initial_tasks.empty()) { + XBT_WARN("Simulation is finished but %zu tasks are still not done", sd_global->initial_tasks.size()); + for (auto const& t : sd_global->initial_tasks) + XBT_WARN("%s is in %s state", SD_task_get_name(t), __get_state_name(SD_task_get_state(t))); } 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; + return &sd_global->return_set; +} +} +} + +/** + * @brief helper for pretty printing of task state + * @param state the state of a task + * @return the equivalent as a readable string + */ +const char *__get_state_name(e_SD_task_state_t state){ + static std::string state_names[7] = + { "not scheduled", "schedulable", "scheduled", "runnable","running", "done", "failed" }; + return state_names[static_cast(log2(static_cast(state)))].data(); +} + +/** + * @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_nocheck(int *argc, char **argv) +{ + xbt_assert(sd_global == nullptr, "SD_init() already called"); + + surf_init(argc, argv); + + sd_global = new simgrid::sd::Global(); + + simgrid::config::set_default("host/model", "ptask_L07"); + if (simgrid::config::get_value("clean-atexit")) + atexit(SD_exit); +} + +/** @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()"); + simgrid::config::set_as_string(key, value); +} + +/** + * @brief Creates the environment + * + * The environment (i.e. the @ref SD_host_api "hosts" and the @ref SD_link_api "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_host_api, SD_link_api + * + * 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) +{ + simgrid::s4u::Engine::get_instance()->load_platform(platform_file); + + XBT_DEBUG("Host number: %zu, link number: %d", sg_host_count(), sg_link_count()); +#if SIMGRID_HAVE_JEDULE + jedule_sd_init(); +#endif + XBT_VERB("Starting simulation..."); + surf_presolve(); /* Takes traces into account */ +} + +/** + * @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() + */ +void SD_simulate(double how_long) +{ + simgrid::sd::simulate(how_long); +} + +void SD_simulate_with_update(double how_long, xbt_dynar_t changed_tasks_dynar) +{ + std::set *changed_tasks = simgrid::sd::simulate(how_long); + for (auto const& task : *changed_tasks) + xbt_dynar_push(changed_tasks_dynar, &task); } /** @brief Returns the current clock, in seconds */ @@ -221,24 +225,14 @@ double SD_get_clock() { } /** - * \brief Destroys all SD internal data + * @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() + * @see SD_init(), SD_task_destroy() */ void SD_exit() { - TRACE_surf_resource_utilization_release(); - -#if HAVE_JEDULE - jedule_sd_cleanup(); +#if SIMGRID_HAVE_JEDULE jedule_sd_exit(); #endif - - xbt_mallocator_free(sd_global->task_mallocator); - delete sd_global->initial_tasks; - delete sd_global->runnable_tasks; - delete sd_global->completed_tasks; - xbt_dynar_free_container(&(sd_global->return_set)); - xbt_free(sd_global); - sd_global = nullptr; + delete sd_global; }