/**
* \brief Sets the rate of a task
*
- * This will change the percentage of the available power or network bandwidth
- * a task can use.
+ * This will change the network bandwidth a task can use. This rate
+ * depends on both the nominal bandwidth on the route onto which the task is
+ * scheduled (\see SD_task_get_current_bandwidth) and the amount of data to
+ * transfer.
*
- * \param task a task
- * \param rate the new rate you want to associate with this task
+ * To divide the nominal bandwidth by 2, the rate then has to be :
+ * rate = bandwidth/(2*amount)
+ *
+ * \param task a \see SD_TASK_COMM_E2E task (end-to-end communication)
+ * \param rate the new rate you want to associate with this task.
*/
void SD_task_set_rate(SD_task_t task, double rate)
{
+ xbt_assert(task->kind == SD_TASK_COMM_E2E,
+ "The rate can be modified for end-to-end communications only.");
+
task->rate = rate;
}
SD_task_get_name(task));
if (__SD_task_is_scheduled_or_runnable(task) /* if the task is scheduled or runnable */
- &&task->kind == SD_TASK_NOT_TYPED) /* Don't free scheduling data for typed tasks */
+ && ((task->kind == SD_TASK_COMP_PAR_AMDAHL) ||
+ (task->kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK))) { /* Don't free scheduling data for typed tasks */
__SD_task_destroy_scheduling_data(task);
+ task->workstation_list=NULL;
+ task->workstation_nb = 0;
+ }
if (__SD_task_is_running(task)) /* the task should become SD_FAILED */
surf_workstation_model->action_cancel(task->surf_action);