/* explore the runnable tasks */
xbt_dynar_foreach(sd_global->executable_task_set , iter, task) {
XBT_VERB("Executing task '%s'", SD_task_get_name(task));
/* explore the runnable tasks */
xbt_dynar_foreach(sd_global->executable_task_set , iter, task) {
XBT_VERB("Executing task '%s'", SD_task_get_name(task));