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;
+SD_global_t sd_global = nullptr;
/**
* \brief Initializes SD internal data
*/
void SD_init(int *argc, char **argv)
{
- TRACE_global_init(argc, argv);
-
- xbt_assert(sd_global == NULL, "SD_init() already called");
+ 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->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_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);
+ sd_global->initial_tasks = new std::set<SD_task_t>();
+ sd_global->runnable_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);
surf_init(argc, argv);
* 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_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;
- SD_dependency_t dependency;
- surf_action_t action;
- unsigned int iter, depcnt;
-
XBT_VERB("Run simulation for %f seconds", how_long);
- sd_global->watch_point_reached = 0;
+ sd_global->watch_point_reached = false;
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--;
- }
+ while(!sd_global->runnable_tasks->empty())
+ SD_task_run(*(sd_global->runnable_tasks->begin()));
- /* 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 = NULL;
+ 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;
XBT_DEBUG("Total time: %f", total_time);
total_time += elapsed_time;
/* let's see which tasks are done */
+ unsigned int iter;
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();
+ 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);
- task->surf_action->unref();
- task->surf_action = NULL;
/* the state has changed. Add it only if it's the first change */
- if (!xbt_dynar_member(sd_global->return_set, &task)) {
+ if (xbt_dynar_member(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;
- 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);
- }
+ for (auto 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(dst) == SD_NOT_SCHEDULED && !(dst->is_not_ready)) {
- SD_task_set_state(dst, SD_SCHEDULABLE);
- }
+ if (SD_task_get_state(succ) == SD_NOT_SCHEDULED && succ->predecessors->empty())
+ SD_task_set_state(succ, 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);
- }
- }
- }
+ if (SD_task_get_state(succ) == SD_SCHEDULED && succ->predecessors->empty() && succ->inputs->empty())
+ SD_task_set_state(succ, SD_RUNNABLE);
- /* 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);
+ if (SD_task_get_state(succ) == SD_RUNNABLE && !sd_global->watch_point_reached)
+ SD_task_run(succ);
+ }
+ task->successors->clear();
+
+ for (auto 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 && !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 */
- while ((action = surf_model_extract_failed_action_set(model))) {
- task = (SD_task_t) action->getData();
- task->start_time = task->surf_action->getStartTime();
- task->finish_time = surf_get_clock();
+ 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);
- action->unref();
- task->surf_action = NULL;
-
xbt_dynar_push(sd_global->return_set, &task);
+ action = surf_model_extract_failed_action_set(model);
}
}
}
- if (!sd_global->watch_point_reached && how_long<0){
- if (!xbt_dynar_is_empty(sd_global->initial_task_set)) {
- XBT_WARN("Simulation is finished but %lu tasks are still not done",
- xbt_dynar_length(sd_global->initial_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)]);
- }
- }
+ 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)]);
}
XBT_DEBUG("elapsed_time = %f, total_time = %f, watch_point_reached = %d",
- elapsed_time, total_time, sd_global->watch_point_reached);
+ 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, in seconds */
-double SD_get_clock(void) {
+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(void)
+void SD_exit()
{
TRACE_surf_resource_utilization_release();
#endif
xbt_mallocator_free(sd_global->task_mallocator);
- 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));
+ 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 = NULL;
+ sd_global = nullptr;
}
