- t_simdata = t->simdata;
- t_simdata->receiver = process;
- *task=t;
-
- SIMIX_mutex_lock(t_simdata->mutex);
-
- /* Transfer */
- t_simdata->using++;
- /* create SIMIX action to the communication */
- t_simdata->comm = SIMIX_action_communicate(t_simdata->sender->simdata->host->simdata->host,
- process->simdata->host->simdata->host,t->name, t_simdata->message_size,
- t_simdata->rate);
- /* if the process is suspend, create the action but stop its execution, it will be restart when the sender process resume */
- if (MSG_process_is_suspended(t_simdata->sender)) {
- DEBUG1("Process sender (%s) suspended", t_simdata->sender->name);
- SIMIX_action_set_priority(t_simdata->comm,0);
- }
- process->simdata->waiting_task = t;
- SIMIX_register_action_to_condition(t_simdata->comm, t_simdata->cond);
- SIMIX_register_condition_to_action(t_simdata->comm, t_simdata->cond);
- SIMIX_cond_wait(t_simdata->cond,t_simdata->mutex);
- process->simdata->waiting_task = NULL;
-
- /* the task has already finished and the pointer must be null*/
- if (t->simdata->sender) {
- t->simdata->sender->simdata->waiting_task = NULL;
+ simdata->host_nb = host_nb;
+ simdata->host_list = xbt_new0(smx_host_t, host_nb);
+ simdata->comp_amount = computation_amount;
+ simdata->comm_amount = communication_amount;
+
+ for (i = 0; i < host_nb; i++)
+ simdata->host_list[i] = host_list[i]->simdata->smx_host;
+
+ return task;
+}
+
+MSG_error_t MSG_parallel_task_execute(m_task_t task)
+{
+ simdata_task_t simdata = NULL;
+ m_process_t self = MSG_process_self();
+ e_surf_action_state_t state = SURF_ACTION_NOT_IN_THE_SYSTEM;
+ CHECK_HOST();
+
+ simdata = task->simdata;
+
+ xbt_assert0((!simdata->compute)
+ && (task->simdata->refcount == 1),
+ "This task is executed somewhere else. Go fix your code!");
+
+ xbt_assert0(simdata->host_nb, "This is not a parallel task. Go to hell.");
+
+ DEBUG1("Computing on %s", MSG_process_self()->simdata->m_host->name);
+
+ simdata->refcount++;
+
+ SIMIX_mutex_lock(simdata->mutex);
+ simdata->compute =
+ SIMIX_action_parallel_execute(task->name, simdata->host_nb,
+ simdata->host_list, simdata->comp_amount,
+ simdata->comm_amount, 1.0, -1.0);
+
+ self->simdata->waiting_action = simdata->compute;
+ SIMIX_register_action_to_condition(simdata->compute, simdata->cond);
+ do {
+ SIMIX_cond_wait(simdata->cond, simdata->mutex);
+ state = SIMIX_action_get_state(task->simdata->compute);
+ } while (state == SURF_ACTION_READY || state == SURF_ACTION_RUNNING);
+
+ SIMIX_unregister_action_to_condition(simdata->compute, simdata->cond);
+ self->simdata->waiting_action = NULL;
+
+
+ SIMIX_mutex_unlock(simdata->mutex);
+ simdata->refcount--;
+
+ if (SIMIX_action_get_state(task->simdata->compute) == SURF_ACTION_DONE) {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->computation_amount = 0.0;
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ MSG_RETURN(MSG_OK);
+ } else if (SIMIX_host_get_state(SIMIX_host_self()) == 0) {
+ /* action ended, set comm and compute = NULL, the actions is already destroyed in the main function */
+ SIMIX_action_destroy(task->simdata->compute);
+ simdata->comm = NULL;
+ simdata->compute = NULL;
+ MSG_RETURN(MSG_HOST_FAILURE);
+ } else {