SD_task_schedule(taskD, workstation_number, workstation_list,
computation_amount, communication_amount, rate);
- printf("Launching simulation...\n");
- SD_task_t *changed_tasks = SD_simulate(100);
- int i = 0;
+ SD_task_watch(taskC, SD_DONE);
+
+ SD_task_t *changed_tasks;
+ int i;
+
+ changed_tasks = SD_simulate(100);
- printf("Simulation results:\n");
- while(changed_tasks[i] != NULL) {
- switch (SD_task_get_state(changed_tasks[i])) {
- case SD_SCHEDULED:
- printf("%s is scheduled.\n", SD_task_get_name(changed_tasks[i]));
- break;
- case SD_READY:
- printf("%s is ready.\n", SD_task_get_name(changed_tasks[i]));
- break;
- case SD_DONE:
- printf("%s is done.\n", SD_task_get_name(changed_tasks[i]));
- break;
- case SD_FAILED:
- printf("%s is failed.\n", SD_task_get_name(changed_tasks[i]));
- break;
- default:
- printf("Unknown status for %s\n", SD_task_get_name(changed_tasks[i]));
- break;
+ while (changed_tasks[0] != NULL) {
+ printf("Tasks whose state has changed:\n");
+ i = 0;
+ while(changed_tasks[i] != NULL) {
+ switch (SD_task_get_state(changed_tasks[i])) {
+ case SD_SCHEDULED:
+ printf("%s is scheduled.\n", SD_task_get_name(changed_tasks[i]));
+ break;
+ case SD_READY:
+ printf("%s is ready.\n", SD_task_get_name(changed_tasks[i]));
+ break;
+ case SD_RUNNING:
+ printf("%s is running.\n", SD_task_get_name(changed_tasks[i]));
+ break;
+ case SD_DONE:
+ printf("%s is done.\n", SD_task_get_name(changed_tasks[i]));
+ break;
+ case SD_FAILED:
+ printf("%s is failed.\n", SD_task_get_name(changed_tasks[i]));
+ break;
+ default:
+ printf("Unknown status for %s\n", SD_task_get_name(changed_tasks[i]));
+ break;
+ }
+ i++;
}
- i++;
+ free(changed_tasks);
+ changed_tasks = SD_simulate(100);
}
free(changed_tasks);
{
double total_time = 0.0; /* we stop the simulation when total_time >= how_long */
double elapsed_time = 0.0;
- SD_task_t task;
+ SD_task_t task, dst;
+ SD_dependency_t dependency;
surf_action_t action;
SD_task_t *changed_tasks = NULL;
int changed_task_number = 0;
int changed_task_capacity = 16; /* will be increased if necessary */
+ int i;
+ static int first_time = 1;
+
+ INFO0("Starting simulation...");
/* create the array that will be returned */
changed_tasks = xbt_new0(SD_task_t, changed_task_capacity);
changed_tasks[0] = NULL;
- surf_solve(); /* Takes traces into account. Returns 0.0 */
+ if (first_time) {
+ surf_solve(); /* Takes traces into account. Returns 0.0 */
+ first_time = 0;
+ }
sd_global->watch_point_reached = 0;
+ /* explore the ready tasks */
+ xbt_swag_foreach(task, sd_global->ready_task_set) {
+ INFO1("Executing task '%s'", SD_task_get_name(task));
+ action = __SD_task_run(task);
+ surf_workstation_resource->common_public->action_set_data(action, task);
+ task->state_changed = 1;
+
+ changed_tasks[changed_task_number++] = task; /* replace NULL by the task */
+ if (changed_task_number == changed_task_capacity) {
+ changed_task_capacity *= 2;
+ changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
+ }
+ changed_tasks[changed_task_number] = NULL;
+ }
+
/* main loop */
+ elapsed_time = 0.0;
while (elapsed_time >= 0.0 && total_time < how_long && !sd_global->watch_point_reached) {
- /* explore the ready tasks */
- xbt_swag_foreach(task, sd_global->ready_task_set) {
- INFO1("Executing task '%s'", SD_task_get_name(task));
- task->state_changed = 0;
- action = __SD_task_run(task);
- surf_workstation_resource->common_public->action_set_data(action, task);
- task->state_changed = 1;
-
- changed_tasks[changed_task_number++] = task; /* replace NULL by the task */
- if (changed_task_number == changed_task_capacity) {
- changed_task_capacity *= 2;
- changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
- }
- changed_tasks[changed_task_number] = NULL;
- }
-
elapsed_time = surf_solve();
if (elapsed_time > 0.0)
total_time += elapsed_time;
task = action->data;
INFO1("Task '%s' done", SD_task_get_name(task));
__SD_task_set_state(task, SD_DONE);
- __SD_task_remove_dependencies(task);
+
+ /* the state has changed */
if (!task->state_changed) {
task->state_changed = 1;
changed_tasks[changed_task_number++] = task;
+ if (changed_task_number == changed_task_capacity) {
+ changed_task_capacity *= 2;
+ changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
+ }
+ changed_tasks[changed_task_number] = NULL;
+ }
+
+ /* remove the dependencies after this task */
+ while (xbt_dynar_length(task->tasks_after) > 0) {
+ xbt_dynar_get_cpy(task->tasks_after, 0, &dependency);
+ dst = dependency->dst;
+ SD_task_dependency_remove(task, dst);
+
+ /* is dst ready now? */
+ if (__SD_task_is_ready(dst) && !sd_global->watch_point_reached) {
+ INFO1("Executing task '%s'", SD_task_get_name(dst));
+ action = __SD_task_run(dst);
+ surf_workstation_resource->common_public->action_set_data(action, dst);
+ dst->state_changed = 1;
+
+ changed_tasks[changed_task_number++] = dst;
+ if (changed_task_number == changed_task_capacity) {
+ changed_task_capacity *= 2;
+ changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
+ }
+ changed_tasks[changed_task_number] = NULL;
+ }
}
}
if (!task->state_changed) {
task->state_changed = 1;
changed_tasks[changed_task_number++] = task;
+ if (changed_task_number == changed_task_capacity) {
+ changed_task_capacity *= 2;
+ changed_tasks = xbt_realloc(changed_tasks, sizeof(SD_task_t) * changed_task_capacity);
+ }
+ changed_tasks[changed_task_number] = NULL;
}
}
}
+ /* we must reset every task->state_changed */
+ i = 0;
+ while (changed_tasks[i] != NULL) {
+ changed_tasks[i]->state_changed = 0;
+ i++;
+ }
+
INFO0("Simulation finished");
- INFO1("Number of tasks whose state has changed: %d", changed_task_number);
+ printf("elapsed_time = %f, total_time = %f, watch_point_reached = %d\n", elapsed_time, total_time, sd_global->watch_point_reached);
return changed_tasks;
}
#include "xbt/sysdep.h"
#include "xbt/dynar.h"
+static void __SD_task_remove_dependencies(SD_task_t task);
+
/**
* \brief Creates a new task.
*
xbt_swag_insert(task, task->state_set);
if (task->watch_points & new_state) {
- printf("Watch point reached with task '%s' in state %d!\n", SD_task_get_name(task), new_state);
+ printf("Watch point reached with task '%s'!\n", SD_task_get_name(task));
sd_global->watch_point_reached = 1;
SD_task_unwatch(task, new_state); /* remove the watch point */
}
return surf_action;
}
-
-/* Remove all dependencies associated with a task. This function is called when the task is done.
+/* Remove all dependencies associated with a task. This function is called when the task is destroyed.
*/
-void __SD_task_remove_dependencies(SD_task_t task) {
+static void __SD_task_remove_dependencies(SD_task_t task) {
/* we must destroy the dependencies carefuly (with SD_dependency_remove)
because each one is stored twice */
SD_dependency_t dependency;