-/* 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;
+simgrid::sd::Global *sd_global = nullptr;
+
+namespace simgrid{
+namespace sd{
+Global::Global(){
+ watch_point_reached = false;
+ initial_tasks = new std::set<SD_task_t>();
+ runnable_tasks = new std::set<SD_task_t>();
+ completed_tasks = new std::set<SD_task_t>();
+ return_set = new std::set<SD_task_t>();
+}
+
+Global::~Global(){
+ delete initial_tasks;
+ delete runnable_tasks;
+ delete completed_tasks;
+ delete return_set;
+}
+
+std::set<SD_task_t>* simulate(double how_long){
+ XBT_VERB("Run simulation for %f seconds", how_long);
+
+ sd_global->watch_point_reached = false;
+ sd_global->return_set->clear();
+
+ /* explore the runnable tasks */
+ 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)) &&
+ 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);
+ 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 = model->extract_done_action();
+ while (action != nullptr && action->get_data() != nullptr) {
+ SD_task_t task = static_cast<SD_task_t>(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 (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 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);
+
+ 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 = model->extract_done_action();
+ }
+
+ /* let's see which tasks have just failed */
+ action = model->extract_failed_action();
+ while (action != nullptr) {
+ SD_task_t task = static_cast<SD_task_t>(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 = 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)));
+ }
+
+ 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 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<int>(log2(static_cast<double>(state)))].data();
+}
/**
- * \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(int *argc, char **argv)
+void SD_init_nocheck(int *argc, char **argv)
{
- TRACE_global_init(argc, argv);
-
xbt_assert(sd_global == nullptr, "SD_init() already called");
- sd_global = xbt_new(s_SD_global_t, 1);
- 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->initial_tasks = new std::set<SD_task_t>();
- sd_global->executable_tasks = new std::set<SD_task_t>();
- sd_global->completed_tasks = new std::set<SD_task_t>();
- sd_global->return_set = xbt_dynar_new(sizeof(SD_task_t), nullptr);
+ sd_global = new simgrid::sd::Global();
surf_init(argc, argv);
- xbt_cfg_setdefault_string("host/model", "ptask_L07");
-
-#if HAVE_JEDULE
- jedule_sd_init();
-#endif
-
+ simgrid::config::set_default<std::string>("host/model", "ptask_L07");
+ if (simgrid::config::get_value<bool>("clean-atexit"))
+ atexit(SD_exit);
if (_sg_cfg_exit_asap) {
- SD_exit();
exit(0);
}
}
-/** \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");
+ * 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);
+ 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)
{
- simgrid::s4u::Engine::instance()->loadPlatform(platform_file);
+ simgrid::s4u::Engine::get_instance()->load_platform(platform_file);
- XBT_DEBUG("Workstation number: %zu, link number: %d", sg_host_count(), sg_link_count());
-#if HAVE_JEDULE
- jedule_setup_platform();
+ 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.
+ * @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)
+{
+ simgrid::sd::simulate(how_long);
+}
-xbt_dynar_t SD_simulate(double how_long) {
- /* we stop the simulation when total_time >= how_long */
- double total_time = 0.0;
- SD_task_t task, dst;
- surf_action_t action;
- unsigned int iter;
-
- XBT_VERB("Run simulation for %f seconds", how_long);
- sd_global->watch_point_reached = 0;
-
- xbt_dynar_reset(sd_global->return_set);
-
- /* explore the runnable tasks */
- std::set<SD_task_t>::iterator it=sd_global->executable_tasks->begin();
- while(it != sd_global->executable_tasks->end()){
- task = *it;
- it++;
- XBT_VERB("Executing task '%s'", SD_task_get_name(task));
- SD_task_run(task);
- xbt_dynar_push(sd_global->return_set, &task);
- }
-
- /* main loop */
- double 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 = nullptr;
-
- 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 = static_cast<SD_task_t>(action->getData());
- task->start_time = task->surf_action->getStartTime();
-
- task->finish_time = surf_get_clock();
- XBT_VERB("Task '%s' done", SD_task_get_name(task));
- SD_task_set_state(task, SD_DONE);
- task->surf_action->unref();
- task->surf_action = nullptr;
-
- /* 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);
- }
-
- /* remove the dependencies after this task */
- for (std::set<SD_task_t>::iterator it=task->successors->begin(); it!=task->successors->end(); ++it){
- dst=*it;
- 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 == 0) {
- if (SD_task_get_state(dst) == SD_SCHEDULED)
- SD_task_set_state(dst, SD_RUNNABLE);
- else
- SD_task_set_state(dst, SD_SCHEDULABLE);
- }
-
- if (SD_task_get_state(dst) == SD_NOT_SCHEDULED && dst->is_not_ready == 0) {
- SD_task_set_state(dst, SD_SCHEDULABLE);
- }
- if (SD_task_get_state(dst) == SD_RUNNABLE && !sd_global->watch_point_reached) {
- XBT_VERB("Executing task '%s'", SD_task_get_name(dst));
- SD_task_run(dst);
- xbt_dynar_push(sd_global->return_set, &dst);
- }
- }
-
- for (std::set<SD_task_t>::iterator it=task->outputs->begin(); it!=task->outputs->end(); ++it){
- dst=*it;
- dst->unsatisfied_dependencies = 0;
- dst->is_not_ready = 0;
- if (SD_task_get_state(dst) == SD_SCHEDULED)
- SD_task_set_state(dst, SD_RUNNABLE);
- else
- SD_task_set_state(dst, SD_SCHEDULABLE);
- SD_task_t comm_dst = *(dst->successors->begin());
- if (SD_task_get_state(comm_dst) == SD_NOT_SCHEDULED && 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 == 0) {
- SD_task_set_state(comm_dst, SD_SCHEDULABLE);
- }
- }
- if (SD_task_get_state(dst) == SD_RUNNABLE && !sd_global->watch_point_reached) {
- XBT_VERB("Executing task '%s'", SD_task_get_name(dst));
- SD_task_run(dst);
- xbt_dynar_push(sd_global->return_set, &dst);
- }
- }
- }
-
- /* let's see which tasks have just failed */
- while ((action = surf_model_extract_failed_action_set(model))) {
- task = static_cast<SD_task_t>(action->getData());
- task->start_time = task->surf_action->getStartTime();
- task->finish_time = surf_get_clock();
- XBT_VERB("Task '%s' failed", SD_task_get_name(task));
- SD_task_set_state(task, SD_FAILED);
- action->unref();
- task->surf_action = nullptr;
-
- xbt_dynar_push(sd_global->return_set, &task);
- }
- }
- }
-
- 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 (std::set<SD_task_t>::iterator it=sd_global->initial_tasks->begin();
- it!=sd_global->initial_tasks->end(); ++it){
- task = *it;
- XBT_WARN("%s is in %s state", SD_task_get_name(task), state_names[SD_task_get_state(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;
+void SD_simulate_with_update(double how_long, xbt_dynar_t changed_tasks_dynar)
+{
+ std::set<SD_task_t> *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 */
}
/**
- * \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->executable_tasks;
- delete sd_global->completed_tasks;
- xbt_dynar_free_container(&(sd_global->return_set));
- xbt_free(sd_global);
- sd_global = nullptr;
+ delete sd_global;
}
