+/* Copyright (c) 2007-2012. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
#include <stdio.h>
#include <stdlib.h>
#include "simdag/simdag.h"
+#include "xbt/log.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(basic2, sd, "SimDag test basic2");
+
+/* Basic SimDag Test 0
+ * Scenario:
+ * - Create a no-op Init task
+ * - Create two communication tasks: 1GB and 100MB
+ * - Schedule them concurrently on the two hosts of the platform
+ * The two communications occur simultaneously. They share the network for the
+ * duration of the shortest one, then the longest one has the full bandwidth.
+ * Simulated time should be:
+ * 1e8/(1/2*1.25e8) + 9e8/1.25e8) + 1e-4 = 8.8001 seconds
+ */
+int main(int argc, char **argv)
+{
+
+ SD_task_t taskInit;
+ SD_task_t taskA;
+ SD_task_t taskB;
+ xbt_dynar_t ret;
-int main(int argc, char **argv) {
+ const SD_workstation_t *workstation;
- SD_task_t taskInit;
- SD_task_t taskA;
- SD_task_t taskB;
+ double communication_amount1 = 1e9;
+ double communication_amount2 = 1e8;
+ double no_cost = 0.0;
- const SD_workstation_t* workstation;
+ /* initialization of SD */
+ SD_init(&argc, argv);
- double communication_amount1 = 1000000000;
- double communication_amount2 = 100000000;
- double no_cost = 0.0;
+ /* creation of the environment */
+ SD_create_environment(argv[1]);
- /* initialisation of SD */
- SD_init(&argc, argv);
+ /* creation of the tasks and their dependencies */
+ taskInit = SD_task_create("Init", NULL, 1.0);
+ taskA = SD_task_create("Task Comm A", NULL, 1.0);
+ taskB = SD_task_create("Task Comm B", NULL, 1.0);
- /* creation of the environment */
- SD_create_environment(argv[1]);
- /* creation of the tasks and their dependencies */
- taskInit = SD_task_create("Init",NULL,1.0);
- taskA = SD_task_create("Task Comm A", NULL, 1.0);
- taskB = SD_task_create("Task Comm B", NULL, 1.0);
+ /* scheduling parameters */
+ workstation = SD_workstation_get_list();
- /* scheduling parameters */
+ /* let's launch the simulation! */
+ SD_task_schedule(taskInit, 1, SD_workstation_get_list(), &no_cost,
+ &no_cost, -1.0);
+ SD_task_schedule(taskA, 1, &workstation[0], &no_cost,
+ &communication_amount1, -1.0);
+ SD_task_schedule(taskB, 1, &workstation[1], &no_cost,
+ &communication_amount2, -1.0);
- workstation = SD_workstation_get_list();
+ SD_task_dependency_add(NULL, NULL, taskInit, taskA);
+ SD_task_dependency_add(NULL, NULL, taskInit, taskB);
- /* let's launch the simulation! */
- SD_task_schedule(taskInit, 1, SD_workstation_get_list(), &no_cost, &no_cost, -1.0);
- SD_task_schedule(taskA, 1, &workstation[0], &no_cost, &communication_amount1, -1.0);
- SD_task_schedule(taskB, 1, &workstation[1], &no_cost, &communication_amount2, -1.0);
+ ret = SD_simulate(-1.0);
+ xbt_dynar_free(&ret);
+ SD_task_destroy(taskA);
+ SD_task_destroy(taskB);
+ SD_task_destroy(taskInit);
- SD_task_dependency_add(NULL, NULL, taskInit, taskA);
- SD_task_dependency_add(NULL, NULL, taskInit, taskB);
-
- SD_simulate(-1.0);
+ XBT_INFO("Simulation time: %f", SD_get_clock());
- SD_exit();
- return 0;
+ SD_exit();
+ return 0;
}
