1 /* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "xbt/sysdep.h" /* calloc */
12 /* Create a log channel to have nice outputs. */
14 #include "xbt/asserts.h"
16 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
17 "Messages specific for this msg example");
19 int dvfs(int argc, char *argv[]);
22 int dvfs(int argc, char *argv[])
24 msg_host_t host = NULL;
25 msg_task_t task1 = NULL;
27 host = MSG_get_host_by_name("MyHost1");
29 XBT_INFO("dvfs start");
31 int nb = MSG_get_host_nb_pstates(host);
32 XBT_INFO("Number of Processor states=%d", nb);
34 double current_peak = MSG_get_host_current_power_peak(host);
35 XBT_INFO("Current power peak=%lf", current_peak);
38 task1 = MSG_task_create ("t1", 100E6, 0, NULL);
39 MSG_task_execute (task1);
40 MSG_task_destroy(task1);
42 task_time = MSG_get_clock();
43 XBT_INFO("Task1 simulation time: %le", task_time);
45 // ========= Change power peak =========
47 double peak_at = MSG_get_host_power_peak_at(host, peak_index);
48 XBT_INFO("=========Changing power peak value to %lf (at index %d)", peak_at, peak_index);
50 MSG_set_host_power_peak_at(host, peak_index);
52 current_peak = MSG_get_host_current_power_peak(host);
53 XBT_INFO("Current power peak=%lf", current_peak);
56 task1 = MSG_task_create ("t1", 100E6, 0, NULL);
57 MSG_task_execute (task1);
58 MSG_task_destroy(task1);
60 task_time = MSG_get_clock() - task_time;
61 XBT_INFO("Task2 simulation time: %le", task_time);
66 int main(int argc, char *argv[])
68 msg_error_t res = MSG_OK;
70 MSG_init(&argc, argv);
73 XBT_CRITICAL("Usage: %s platform_file deployment_file\n",
76 ("example: %s msg_platform.xml msg_deployment.xml\n",
81 MSG_create_environment(argv[1]);
83 /* Application deployment */
84 MSG_function_register("dvfs_test", dvfs);
86 MSG_launch_application(argv[2]);
90 XBT_INFO("Total simulation time: %le", MSG_get_clock());