--- /dev/null
+/* Copyright (c) 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/ex.h"
+#include "xbt/log.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(sd_avail,
+ "Logging specific to this SimDag example");
+
+/* Test of dynamic availability traces
+ * Scenario:
+ * - A chain of tasks: t1 -> c1 -> t2 -> c2 -> t3 -> c3 -> t4 alternatively
+ * scheduled across two workstations (Tremblay and Jupiter) connected by a
+ * single link (link1)
+ * - Make the characteristics of the resources change across time
+ * Jupiter
+ * [0.000000 -> 2.000000[ runs at half speed: 12500000
+ * [2.000000 -> end[ runs at full speed: 25000000
+ * Tremblay
+ * [0.000000 -> 1.000000[ runs at half speed: 15000000
+ * [1.000000 -> 4.000000[ runs at full speed: 25000000
+ * [4.000000 -> 6.000000[ runs at half speed: 12500000
+ * then loop back.
+ * link1
+ * [0.000000 -> 2.000000[ bandwidth = 125000000
+ * [2.000000 -> 4.000000[ bandwidth = 62500000
+ * [4.000000 -> 6.000000[ bandwidth = 31250000
+ * then loop back.
+ * - Adjust tasks' amounts to have comprehensive execution times
+ * t1: 25000000 flops, should last 2 seconds
+ * c1: 125000000 bytes, should last 1.0001 seconds
+ * t2: 25000000 flops, should last 1 second
+ * c2: 62500000 bytes, should last 1.0001 seconds
+ * t3: 25000000 flops, should last 1 second
+ * c3: 31250000 bytes, should last 1.0001 seconds
+ * t4:
+ */
+
+int main(int argc, char **argv)
+{
+ unsigned int ctr;
+ const SD_workstation_t *workstations;
+ SD_task_t t1, c1, t2, c2, t3, c3, t4, task;
+ xbt_dynar_t changed_tasks;
+
+ SD_init(&argc, argv);
+ SD_create_environment(argv[1]);
+ workstations = SD_workstation_get_list();
+
+ t1 = SD_task_create_comp_seq("t1", NULL, 25000000);
+ c1 = SD_task_create_comm_e2e("c1", NULL, 125000000);
+ t2 = SD_task_create_comp_seq("t2", NULL, 25000000);
+ c2 = SD_task_create_comm_e2e("c2", NULL, 62500000);
+ t3 = SD_task_create_comp_seq("t3", NULL, 25000000);
+ c3 = SD_task_create_comm_e2e("c3", NULL, 31250000);
+ /* Should last 0.5 second */
+ t4 = SD_task_create_comp_seq("t4", NULL, 25000000);
+
+ /* Add dependencies: t1->c1->t2->c2->t3 */
+ SD_task_dependency_add(NULL, NULL, t1, c1);
+ SD_task_dependency_add(NULL, NULL, c1, t2);
+ SD_task_dependency_add(NULL, NULL, t2, c2);
+ SD_task_dependency_add(NULL, NULL, c2, t3);
+ SD_task_dependency_add(NULL, NULL, t3, c3);
+ SD_task_dependency_add(NULL, NULL, c3, t4);
+
+ /* Schedule tasks t1 and w3 on first host, t2 on second host */
+ /* Transfers are auto-scheduled */
+ SD_task_schedulel(t1, 1, workstations[0]);
+ SD_task_schedulel(t2, 1, workstations[1]);
+ SD_task_schedulel(t3, 1, workstations[0]);
+ SD_task_schedulel(t4, 1, workstations[1]);
+
+ /* Add some watchpoint upon task completion */
+ SD_task_watch(t1, SD_DONE);
+ SD_task_watch(c1, SD_DONE);
+ SD_task_watch(t2, SD_DONE);
+ SD_task_watch(c2, SD_DONE);
+ SD_task_watch(t3, SD_DONE);
+ SD_task_watch(c3, SD_DONE);
+ SD_task_watch(t4, SD_DONE);
+
+ while (!xbt_dynar_is_empty((changed_tasks = SD_simulate(-1.0)))) {
+ XBT_INFO("link1: bw=%.0f, lat=%f",
+ SD_route_get_current_bandwidth(workstations[0], workstations[1]),
+ SD_route_get_current_latency(workstations[0], workstations[1]));
+ XBT_INFO("Jupiter: power=%.0f",
+ SD_workstation_get_power(workstations[0])*
+ SD_workstation_get_available_power(workstations[0]));
+ XBT_INFO("Tremblay: power=%.0f",
+ SD_workstation_get_power(workstations[1])*
+ SD_workstation_get_available_power(workstations[1]));
+ xbt_dynar_foreach(changed_tasks, ctr, task) {
+ XBT_INFO("Task '%s' start time: %f, finish time: %f",
+ SD_task_get_name(task),
+ SD_task_get_start_time(task), SD_task_get_finish_time(task));
+ if (SD_task_get_state(task)==SD_DONE)
+ SD_task_destroy(task);
+ }
+ }
+ SD_exit();
+ return 0;
+}
