--- /dev/null
+/* Copyright (c) 2007-2010, 2013-2014. 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 "simgrid/msg.h"
+#include "xbt/sysdep.h" /* calloc */
+#include "simgrid/plugins.h"
+
+/* Create a log channel to have nice outputs. */
+#include "xbt/log.h"
+#include "xbt/asserts.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
+ "Messages specific for this msg example");
+
+int dvfs(int argc, char *argv[]);
+
+
+int dvfs(int argc, char *argv[])
+{
+ msg_host_t host = NULL;
+ msg_task_t task1 = NULL;
+ host = MSG_get_host_by_name("MyHost1");
+
+
+ XBT_INFO("Energetic profile: %s",
+ MSG_host_get_property_value(host,"watt_per_state"));
+ XBT_INFO("Initial peak speed=%.0E flop/s; Energy dissipated =%.0E J",
+ MSG_host_get_current_power_peak(host), MSG_host_get_consumed_energy(host));
+
+ double start = MSG_get_clock();
+ XBT_INFO("Sleep for 10 seconds");
+ MSG_process_sleep(10);
+ XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E; Energy dissipated=%.2f J",
+ MSG_get_clock()-start,
+ MSG_host_get_current_power_peak(host), MSG_host_get_consumed_energy(host));
+
+ // Run a task
+ start = MSG_get_clock();
+ XBT_INFO("Run a task for 100E6 flops");
+ task1 = MSG_task_create ("t1", 100E6, 0, NULL);
+ MSG_task_execute (task1);
+ MSG_task_destroy(task1);
+ XBT_INFO("Task done (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ MSG_get_clock()-start,
+ MSG_host_get_current_power_peak(host), MSG_host_get_consumed_energy(host));
+
+ // ========= Change power peak =========
+ int pstate=2;
+ MSG_host_set_pstate(host, pstate);
+ XBT_INFO("========= Requesting pstate %d (speed should be of %.2f flop/s and is of %.2f flop/s)",
+ pstate,
+ MSG_host_get_power_peak_at(host, pstate),
+ MSG_host_get_current_power_peak(host));
+
+ // Run a second task
+ start = MSG_get_clock();
+ XBT_INFO("Run a task for 100E6 flops");
+ task1 = MSG_task_create ("t2", 100E6, 0, NULL);
+ MSG_task_execute (task1);
+ MSG_task_destroy(task1);
+ XBT_INFO("Task done (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ MSG_get_clock()-start,
+ MSG_host_get_current_power_peak(host), MSG_host_get_consumed_energy(host));
+
+ start = MSG_get_clock();
+ XBT_INFO("Sleep for 4 seconds");
+ MSG_process_sleep(4);
+ XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ MSG_get_clock()-start,
+ MSG_host_get_current_power_peak(host), MSG_host_get_consumed_energy(host));
+
+ // =========== Turn the other host off ==========
+ XBT_INFO("Turning MyHost2 off, and sleeping another 10 seconds. MyHost2 dissipated %.0f J so far.",
+ MSG_host_get_consumed_energy(MSG_get_host_by_name("MyHost2")) );
+ MSG_host_off(MSG_get_host_by_name("MyHost2"));
+ start = MSG_get_clock();
+ MSG_process_sleep(10);
+ XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ MSG_get_clock()-start,
+ MSG_host_get_current_power_peak(host), MSG_host_get_consumed_energy(host));
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ msg_error_t res = MSG_OK;
+ sg_energy_plugin_init();
+ MSG_init(&argc, argv);
+
+ if (argc != 3) {
+ XBT_CRITICAL("Usage: %s platform_file deployment_file\n",
+ argv[0]);
+ XBT_CRITICAL
+ ("example: %s msg_platform.xml msg_deployment.xml\n",
+ argv[0]);
+ exit(1);
+ }
+
+ MSG_create_environment(argv[1]);
+
+ /* Application deployment */
+ MSG_function_register("dvfs_test", dvfs);
+
+ MSG_launch_application(argv[2]);
+
+ res = MSG_main();
+
+ XBT_INFO("Total simulation time: %.2f", MSG_get_clock());
+
+ if (res == MSG_OK)
+ return 0;
+ else
+ return 1;
+}
+