+/* 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(basic0, sd, "SimDag test basic0");
+
+/* Basic SimDag Test 0
+ * Scenario:
+ * - Create a no-op Init task
+ * - Create two communication tasks: 100MB and 1B
+ * - Schedule them concurrently on the two hosts of the platform
+ * The two communications occur simultaneously but one is so short that it has
+ * no impact on the other.
+ * Simulated time should be:
+ * 1e8/1.25e8 + 1e-4 = 0.8001 seconds
+ * This corresponds to paying latency once and having the full bandwidth for the
+ * big message.
+ */
+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) {
- /* initialisation of SD */
+ /* scheduling parameters */
+
+ double communication_amount1[] = { 0, 1e8, 0, 0 };
+ double communication_amount2[] = { 0, 1, 0, 0 };
+ const double no_cost[] = { 0.0, 0.0 };
+
+ /* initialization of SD */
SD_init(&argc, argv);
/* creation of the environment */
SD_create_environment(argv[1]);
/* creation of the tasks and their dependencies */
- SD_task_t taskInit = SD_task_create("Init",NULL,1.0);
- SD_task_t taskA = SD_task_create("Task Comm 1", NULL, 1.0);
- SD_task_t taskB = SD_task_create("Task Comm 2", NULL, 1.0);
-
-
- /* scheduling parameters */
+ taskInit = SD_task_create("Init", NULL, 1.0);
+ taskA = SD_task_create("Task Comm 1", NULL, 1.0);
+ taskB = SD_task_create("Task Comm 2", NULL, 1.0);
- double communication_amount1[] = { 0, 100000000, 0, 0 };
- double communication_amount2[] = { 0, 1, 0, 0 };
- const double no_cost[] = {0.0, 0.0};
-
/* let's launch the simulation! */
- SD_task_schedule(taskInit, 1, SD_workstation_get_list(), no_cost, no_cost, -1.0);
- SD_task_schedule(taskA, 2, SD_workstation_get_list(), no_cost, communication_amount1, -1.0);
- SD_task_schedule(taskB, 2, SD_workstation_get_list(), no_cost, communication_amount2, -1.0);
+ SD_task_schedule(taskInit, 1, SD_workstation_get_list(), no_cost,
+ no_cost, -1.0);
+ SD_task_schedule(taskA, 2, SD_workstation_get_list(), no_cost,
+ communication_amount1, -1.0);
+ SD_task_schedule(taskB, 2, SD_workstation_get_list(), no_cost,
+ communication_amount2, -1.0);
SD_task_dependency_add(NULL, NULL, taskInit, taskA);
SD_task_dependency_add(NULL, NULL, taskInit, taskB);
- SD_simulate(-1.0);
+ ret = SD_simulate(-1.0);
+ xbt_dynar_free(&ret);
+ SD_task_destroy(taskInit);
+ SD_task_destroy(taskA);
+ SD_task_destroy(taskB);
+
+ XBT_INFO("Simulation time: %f", SD_get_clock());
SD_exit();
return 0;
}
-
