-/* Copyright (c) 2006-2016. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2006-2017. 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/surf/surf_interface.hpp"
-#include "src/simdag/simdag_private.h"
-#include "instr/instr_interface.h"
-#include "xbt/sysdep.h"
-#include "xbt/dynar.h"
-#include "surf/surf.h"
+#include "simdag_private.hpp"
+#include "simgrid/s4u/Engine.hpp"
#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 "simgrid/jedule/jedule_sd_binding.h"
-#endif
+#include "src/include/instr/instr_interface.h"
+#include "src/surf/surf_interface.hpp"
XBT_LOG_NEW_CATEGORY(sd, "Logging specific to SimDag");
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_kernel, sd,
- "Logging specific to SimDag (kernel)");
+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<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>();
+}
-SD_global_t sd_global = NULL;
+Global::~Global(){
+ delete initial_tasks;
+ delete runnable_tasks;
+ delete completed_tasks;
+ delete return_set;
+}
-/**
- * \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);
+std::set<SD_task_t>* simulate(double how_long){
+ XBT_VERB("Run simulation for %f seconds", how_long);
- xbt_assert(sd_global == NULL, "SD_init() already called");
+ sd_global->watch_point_reached = false;
+ sd_global->return_set->clear();
- sd_global = xbt_new(s_SD_global_t, 1);
- sd_global->host_list = NULL;
- sd_global->link_list = NULL;
- sd_global->recyclable_route = NULL;
- sd_global->watch_point_reached = 0;
+ /* 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) {
- sd_global->task_mallocator=xbt_mallocator_new(65536, SD_task_new_f,
- SD_task_free_f,
- SD_task_recycle_f);
+ XBT_DEBUG("Total time: %f", total_time);
- sd_global->initial_task_set = xbt_dynar_new(sizeof(SD_task_t), NULL);
- sd_global->executable_task_set = xbt_dynar_new(sizeof(SD_task_t), NULL);
- sd_global->completed_task_set = xbt_dynar_new(sizeof(SD_task_t), NULL);
- sd_global->return_set = xbt_dynar_new(sizeof(SD_task_t), NULL);
+ 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;
- sd_global->task_number = 0;
+ /* let's see which tasks are done */
+ for (auto const& model : *all_existing_models) {
+ surf_action_t action = surf_model_extract_done_action_set(model);
+ while (action != nullptr) {
+ SD_task_t task = static_cast<SD_task_t>(action->getData());
+ XBT_VERB("Task '%s' done", SD_task_get_name(task));
+ SD_task_set_state(task, SD_DONE);
- surf_init(argc, argv);
+ /* 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);
- xbt_cfg_setdefault_string(_sg_cfg_set, "host/model",
- "ptask_L07");
+ /* 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());
-#ifdef HAVE_JEDULE
- jedule_sd_init();
-#endif
+ if (SD_task_get_state(succ) == SD_NOT_SCHEDULED && succ->predecessors->empty())
+ SD_task_set_state(succ, SD_SCHEDULABLE);
- XBT_DEBUG("ADD SD LEVELS");
- SD_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,__SD_storage_destroy);
+ if (SD_task_get_state(succ) == SD_SCHEDULED && succ->predecessors->empty() && succ->inputs->empty())
+ SD_task_set_state(succ, SD_RUNNABLE);
- if (_sg_cfg_exit_asap) {
- SD_exit();
- exit(0);
+ 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);
+ }
+
+ /* let's see which tasks have just failed */
+ action = surf_model_extract_failed_action_set(model);
+ while (action != nullptr) {
+ SD_task_t task = static_cast<SD_task_t>(action->getData());
+ 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);
+ }
+ }
}
+
+ 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 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");
+/**
+ * \brief helper for pretty printing of task state
+ * \param state the state of a task
+ * \return the equivalent as a readable string
*/
-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);
+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 Reinits the application part of the simulation (experimental feature)
+ * \brief Initializes SD internal data
*
- * This function allows you to run several simulations on the same platform
- * by resetting the part describing the application.
+ * This function must be called before any other SD function. Then you should call SD_create_environment().
*
- * @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.
+ * \param argc argument number
+ * \param argv argument list
+ * \see SD_create_environment(), SD_exit()
*/
-void SD_application_reinit(void)
+void SD_init_nocheck(int *argc, char **argv)
{
+ xbt_assert(sd_global == nullptr, "SD_init() already called");
-// 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_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;
-// }
+ sd_global = new simgrid::sd::Global();
- sd_global->task_number = 0;
+ surf_init(argc, argv);
+ xbt_cfg_setdefault_string("host/model", "ptask_L07");
+ if(xbt_cfg_get_boolean("clean-atexit"))
+ atexit(SD_exit);
+ if (_sg_cfg_exit_asap) {
+ exit(0);
+ }
+}
-#ifdef HAVE_JEDULE
- jedule_sd_dump();
- jedule_sd_cleanup();
- jedule_sd_init();
-#endif
+/** \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);
}
/**
* \brief Creates the environment
*
- * The environment (i.e. the \ref sg_host_management "hosts"
- * and the \ref SD_link_management "links") is created with the data stored
- * in the given XML platform file.
+ * 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 sg_host_management, SD_link_management
+ * \see SD_host_api, SD_link_api
*
* The XML file follows this DTD:
*
*/
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 storage elements */
- xbt_lib_foreach(storage_lib, cursor, name, surf_storage) {
- if(surf_storage[SURF_STORAGE_LEVEL])
- __SD_storage_create(surf_storage[SURF_STORAGE_LEVEL], NULL);
- }
+ simgrid::s4u::Engine::getInstance()->loadPlatform(platform_file);
- XBT_DEBUG("Workstation number: %zu, link number: %d",
- sg_host_count(), sg_link_count());
-#ifdef 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.
*
* 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.
+ * 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)
+ * \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;
- double elapsed_time = 0.0;
- SD_task_t task, 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_dynar_reset(sd_global->return_set);
-
- /* explore the runnable tasks */
- xbt_dynar_foreach(sd_global->executable_task_set , iter, task) {
- XBT_VERB("Executing task '%s'", SD_task_get_name(task));
- SD_task_run(task);
- xbt_dynar_push(sd_global->return_set, &task);
- iter--;
- }
-
- /* 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 = (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 = NULL;
-
- /* the state has changed. Add it only if it's the first change */
- if (xbt_dynar_search_or_negative(sd_global->return_set, &task) < 0) {
- xbt_dynar_push(sd_global->return_set, &task);
- }
-
- /* 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_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)) {
- 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_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)) {
- SD_task_set_state(comm_dst, SD_SCHEDULABLE);
- }
- }
- }
-
- /* is dst runnable now? */
- 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 = (SD_task_t) action->getData();
- 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);
- action->unref();
- task->surf_action = NULL;
-
- xbt_dynar_push(sd_global->return_set, &task);
- }
- }
- }
-
- if (!sd_global->watch_point_reached && how_long<0){
- if ((int) xbt_dynar_length(sd_global->completed_task_set) <
- sd_global->task_number){
- XBT_WARN("Simulation is finished but %d tasks are still not done",
- (sd_global->task_number -
- (int) xbt_dynar_length(sd_global->completed_task_set)));
- static const char* state_names[] =
- { "SD_NOT_SCHEDULED", "SD_SCHEDULABLE", "SD_SCHEDULED",
- "SD_RUNNABLE", "SD_RUNNING", "SD_DONE",
- "SD_FAILED" };
- xbt_dynar_foreach(sd_global->initial_task_set, iter, task){
- 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
- *
- * \return the current clock, in second
- */
-double SD_get_clock(void) {
+/** @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.
- *
+ * 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)
+void SD_exit()
{
- TRACE_surf_resource_utilization_release();
-
- xbt_mallocator_free(sd_global->task_mallocator);
-
- XBT_DEBUG("Destroying workstation and link arrays...");
- xbt_free(sd_global->host_list);
- xbt_free(sd_global->link_list);
- xbt_free(sd_global->recyclable_route);
-
- XBT_DEBUG("Destroying the dynars ...");
- xbt_dynar_free_container(&(sd_global->initial_task_set));
- xbt_dynar_free_container(&(sd_global->executable_task_set));
- xbt_dynar_free_container(&(sd_global->completed_task_set));
- xbt_dynar_free_container(&(sd_global->return_set));
-
TRACE_end();
-
- xbt_free(sd_global);
- sd_global = NULL;
-
-#ifdef HAVE_JEDULE
- jedule_sd_dump();
- jedule_sd_cleanup();
+#if SIMGRID_HAVE_JEDULE
jedule_sd_exit();
#endif
-
- XBT_DEBUG("Exiting Surf...");
- surf_exit();
+ delete sd_global;
}
