X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/262c0777ed16cb8e15eaadd3785c6fec87039b26..c5671be7576dca4aca0cc73c77d4ee732df42140:/src/simdag/sd_global.cpp diff --git a/src/simdag/sd_global.cpp b/src/simdag/sd_global.cpp index 81c70e1b9c..04a0f1d901 100644 --- a/src/simdag/sd_global.cpp +++ b/src/simdag/sd_global.cpp @@ -1,228 +1,190 @@ -/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2006-2021. 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 "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/include/instr/instr_interface.hpp" +#include "src/kernel/EngineImpl.hpp" #include "src/surf/surf_interface.hpp" +#include + XBT_LOG_NEW_CATEGORY(sd, "Logging specific to SimDag"); XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel, sd, "Logging specific to SimDag (kernel)"); -simgrid::sd::Global *sd_global = nullptr; - -namespace simgrid{ -namespace sd{ -Global::Global(){ - watch_point_reached = false; - initial_tasks = new std::set(); - runnable_tasks = new std::set(); - completed_tasks = new std::set(); - return_set = new std::set(); -} +std::unique_ptr sd_global = nullptr; -Global::~Global(){ - delete initial_tasks; - delete runnable_tasks; - delete completed_tasks; - delete return_set; -} +namespace simgrid { +namespace sd { -std::set* simulate(double how_long){ +std::set* simulate(double how_long) +{ XBT_VERB("Run simulation for %f seconds", how_long); + auto engine = sd_global->engine_->get_impl(); sd_global->watch_point_reached = false; - sd_global->return_set->clear(); + sd_global->return_set.clear(); /* explore the runnable tasks */ - while (not sd_global->runnable_tasks->empty()) - SD_task_run(*(sd_global->runnable_tasks->begin())); + while (not sd_global->runnable_tasks.empty()) + (*(sd_global->runnable_tasks.begin()))->run(); double elapsed_time = 0.0; - double total_time = 0.0; + double total_time = 0.0; /* main loop */ 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); - elapsed_time = surf_solve(how_long > 0 ? surf_get_clock() + how_long - total_time: -1.0); - XBT_DEBUG("surf_solve() returns %f", elapsed_time); + elapsed_time = engine->solve(how_long > 0 ? simgrid_get_clock() + how_long - total_time : -1.0); + XBT_DEBUG("solve() returns %f", elapsed_time); if (elapsed_time > 0.0) total_time += elapsed_time; /* let's see which tasks are done */ - for (auto const& model : *all_existing_models) { - simgrid::kernel::resource::Action* action = surf_model_extract_done_action_set(model); + for (auto const& model : engine->get_all_models()) { + const 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); + auto* task = static_cast(action->get_data()); + XBT_VERB("Task '%s' done", task->get_cname()); + task->set_state(SD_DONE); /* the state has changed. Add it only if it's the first change */ - if (sd_global->return_set->find(task) == sd_global->return_set->end()) - sd_global->return_set->insert(task); + sd_global->return_set.emplace(task); /* remove the dependencies after this task */ - 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), - succ->predecessors->size()+succ->inputs->size(), succ->predecessors->size()); - - if (SD_task_get_state(succ) == SD_NOT_SCHEDULED && succ->predecessors->empty()) - SD_task_set_state(succ, SD_SCHEDULABLE); + for (auto const& succ : task->get_successors()) + succ->released_by(task); - 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 && not sd_global->watch_point_reached) - SD_task_run(succ); - } - task->successors->clear(); - - for (auto const& output : *task->outputs) { - output->start_time = task->finish_time; - output->predecessors->erase(task); - if (SD_task_get_state(output) == SD_SCHEDULED) - SD_task_set_state(output, SD_RUNNABLE); - else - SD_task_set_state(output, SD_SCHEDULABLE); - - SD_task_t comm_dst = *(output->successors->begin()); - if (SD_task_get_state(comm_dst) == SD_NOT_SCHEDULED && comm_dst->predecessors->empty()){ - XBT_DEBUG("%s is a transfer, %s may be ready now if %zu=0", - 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 && not sd_global->watch_point_reached) - SD_task_run(output); - } - task->outputs->clear(); - action = surf_model_extract_done_action_set(model); + for (auto const& output : task->get_outputs()) + output->produced_by(task); + task->clear_successors(); + 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->get_data()); - XBT_VERB("Task '%s' failed", SD_task_get_name(task)); - SD_task_set_state(task, SD_FAILED); - sd_global->return_set->insert(task); - action = surf_model_extract_failed_action_set(model); + auto* task = static_cast(action->get_data()); + XBT_VERB("Task '%s' failed", task->get_cname()); + task->set_state(SD_FAILED); + sd_global->return_set.insert(task); + action = model->extract_failed_action(); } } } - 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))); + 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", t->get_cname(), __get_state_name(t->get_state())); } - 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()); + 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", simgrid_get_clock()); - return sd_global->return_set; -} -} + return &sd_global->return_set; } +} // namespace sd +} // namespace simgrid /** - * \brief helper for pretty printing of task state - * \param state the state of a task - * \return the equivalent as a readable string + * @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(); +const char* __get_state_name(e_SD_task_state_t state) +{ + static constexpr std::array state_names{ + {"not scheduled", "schedulable", "scheduled", "runnable", "running", "done", "failed"}}; + return state_names.at(static_cast(log2(static_cast(state)))); } /** - * \brief Initializes SD internal 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() + * @param argc argument number + * @param argv argument list + * @see SD_create_environment(), SD_exit() */ -void SD_init_nocheck(int *argc, char **argv) +void SD_init_nocheck(int* argc, char** argv) { xbt_assert(sd_global == nullptr, "SD_init() already called"); - sd_global = new simgrid::sd::Global(); - - surf_init(argc, argv); + sd_global = std::make_unique(argc, argv); simgrid::config::set_default("host/model", "ptask_L07"); - if (simgrid::config::get_value("clean-atexit")) - atexit(SD_exit); - if (_sg_cfg_exit_asap) { - exit(0); - } + if (simgrid::config::get_value("debug/clean-atexit")) + atexit([]() { +#if SIMGRID_HAVE_JEDULE + jedule_sd_exit(); +#endif + sd_global->engine_->shutdown(); + }); } -/** \brief set a configuration variable +/** @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()"); +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 + * @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 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 + * @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 + * @include simgrid.dtd * * Here is a small example of such a platform: * - * \include small_platform.xml + * @include small_platform.xml */ -void SD_create_environment(const char *platform_file) +void SD_create_environment(const char* platform_file) { - simgrid::s4u::Engine::get_instance()->load_platform(platform_file); + sd_global->engine_->load_platform(platform_file); - XBT_DEBUG("Host number: %zu, link number: %d", sg_host_count(), sg_link_count()); + XBT_DEBUG("Host number: %zu, link number: %zu", sg_host_count(), sg_link_count()); #if SIMGRID_HAVE_JEDULE jedule_sd_init(); #endif XBT_VERB("Starting simulation..."); - surf_presolve(); /* Takes traces into account */ + sd_global->engine_->get_impl()->presolve(); /* Takes traces into account */ } /** - * \brief Launches the simulation. + * @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 + * 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 + * 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() + * @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) { @@ -231,26 +193,7 @@ void SD_simulate(double 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); + const 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 */ -double SD_get_clock() { - 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() -{ - TRACE_end(); -#if SIMGRID_HAVE_JEDULE - jedule_sd_exit(); -#endif - delete sd_global; -}