-#include "simdag/simdag.h"
#include "private.h"
#include "xbt/sysdep.h"
#include "xbt/dynar.h"
#include "surf/surf.h"
+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;
/* Initialises SD internal data. This function should be called before any other SD function.
sd_global->workstations = xbt_dict_new();
sd_global->workstation_count = 0;
sd_global->links = xbt_dict_new();
- sd_global->tasks = xbt_dynar_new(sizeof(SD_task_t), NULL);
sd_global->watch_point_reached = 0;
s_SD_task_t task;
double total_time = 0.0; /* we stop the simulation when total_time >= how_long */
double elapsed_time = 0.0;
- int i;
SD_task_t task;
- surf_action_t surf_action;
+ surf_action_t action;
+ SD_task_t *changed_tasks = NULL;
+ int changed_task_number = 0;
+ int changed_task_capacity = 16;
+
+ /* create the array that will be returned */
+ changed_tasks = xbt_new0(SD_task_t, changed_task_capacity); /* changed_task_capacity will be increased if necessary */
+ changed_tasks[0] = NULL;
surf_solve(); /* Takes traces into account. Returns 0.0 */
+ sd_global->watch_point_reached = 0;
+
/* main loop */
while (elapsed_time >= 0.0 && total_time < how_long && !sd_global->watch_point_reached) {
- for (i = 0 ; i < xbt_dynar_length(sd_global->tasks); i++) {
- xbt_dynar_get_cpy(sd_global->tasks, i, &task);
- printf("Examining task '%s'...\n", SD_task_get_name(task));
-
- /* if the task is scheduled and the dependencies are satisfied,
- we can execute the task */
- if (SD_task_get_state(task) == SD_SCHEDULED) {
- printf("Task '%s' is scheduled.\n", SD_task_get_name(task));
-
- if (xbt_dynar_length(task->tasks_before) == 0) {
- printf("The dependencies are satisfied. Executing task '%s'\n", SD_task_get_name(task));
- surf_action = __SD_task_run(task);
- }
- else {
- printf("Cannot execute task '%s' because some depencies are not satisfied.\n", SD_task_get_name(task));
+
+ /* explore the scheduled tasks */
+ xbt_swag_foreach(task, sd_global->scheduled_task_set) {
+ INFO1("Examining task '%s'...", SD_task_get_name(task));
+ task->state_changed = 0;
+ if (xbt_dynar_length(task->tasks_before) == 0) {
+ INFO1("The dependencies are satisfied. 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;
}
else {
- printf("Task '%s' is not scheduled. Nothing to do.\n", SD_task_get_name(task));
+ INFO1("Cannot execute task '%s' now because some depencies are not satisfied.", SD_task_get_name(task));
}
}
+
elapsed_time = surf_solve();
if (elapsed_time > 0.0)
total_time += elapsed_time;
- printf("Total time: %f\n", total_time);
- }
-
- return NULL;
-}
-
-void SD_test() {
- /* temporary test to explore the workstations and the links */
- xbt_dict_cursor_t cursor = NULL;
- char *name = NULL;
- SD_workstation_t workstation = NULL;
- double power, available_power, bandwidth, latency;
- SD_link_t link = NULL;
-
- surf_solve();
+ /* INFO1("Total time: %f", total_time);*/
+
+ while ((action = xbt_swag_extract(surf_workstation_resource->common_public->states.done_action_set))) {
+ task = action->data;
+ INFO1("Task '%s' done", SD_task_get_name(task));
+ __SD_task_set_state(task, SD_DONE);
+ __SD_task_remove_dependencies(task);
+ if (!task->state_changed) {
+ task->state_changed = 1;
+ changed_tasks[changed_task_number++] = task;
+ }
+ }
- xbt_dict_foreach(sd_global->workstations, cursor, name, workstation) {
- power = SD_workstation_get_power(workstation);
- available_power = SD_workstation_get_available_power(workstation);
- printf("Workstation name: %s, power: %f Mflop/s, available power: %f%%\n", name, power, (available_power*100));
+ while ((action = xbt_swag_extract(surf_workstation_resource->common_public->states.failed_action_set))) {
+ task = action->data;
+ INFO1("Task '%s' failed", SD_task_get_name(task));
+ __SD_task_set_state(task, SD_FAILED);
+ if (!task->state_changed) {
+ task->state_changed = 1;
+ changed_tasks[changed_task_number++] = task;
+ }
+ }
}
- xbt_dict_foreach(sd_global->links, cursor, name, link) {
- bandwidth = SD_link_get_current_bandwidth(link);
- latency = SD_link_get_current_latency(link);
- printf("Link name: %s, bandwidth: %f, latency: %f\n", name, bandwidth, latency);
- }
+ INFO0("Simulation finished");
- /* test the route between two workstations */
- SD_workstation_t src, dst;
- xbt_dict_cursor_first(sd_global->workstations, &cursor);
- xbt_dict_cursor_get_or_free(&cursor, &name, (void**) &src);
- xbt_dict_cursor_step(cursor);
- xbt_dict_cursor_get_or_free(&cursor, &name, (void**) &dst);
- xbt_dict_cursor_free(&cursor);
-
- SD_link_t *route = SD_workstation_route_get_list(src, dst);
- int route_size = SD_workstation_route_get_size(src, dst);
-
- printf("Route between %s and %s (%d links) : ", SD_workstation_get_name(src), SD_workstation_get_name(dst), route_size);
- int i;
- for (i = 0; i < route_size; i++) {
- printf("%s ", SD_link_get_name(route[i]));
- }
- printf("\n");
+ INFO1("Number of tasks whose state has changed: %d", changed_task_number);
+ return changed_tasks;
}
/* Destroys all SD internal data. This function should be called when the simulation is over.
* The tasks should have been destroyed first.
*/
-void SD_exit() {
+void SD_exit(void) {
if (sd_global != NULL) {
xbt_dict_free(&sd_global->workstations);
xbt_dict_free(&sd_global->links);
- xbt_dynar_free(&sd_global->tasks);
xbt_free(sd_global);
xbt_swag_free(sd_global->not_scheduled_task_set);
