1 /* Copyright (c) 2007-2010, 2013-2015. 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. */
7 #include "simgrid/msg.h"
8 #include "simgrid/plugins/energy.h"
10 XBT_LOG_NEW_DEFAULT_CATEGORY(energy_vm, "Messages of this example");
12 static int worker_func(int argc, char *argv[]) {
15 msg_task_t task1 = MSG_task_create("t1", 300E6, 0, NULL);
16 MSG_task_execute (task1);
17 MSG_task_destroy(task1);
18 XBT_INFO("This worker is done.");
22 static int dvfs(int argc, char *argv[])
24 msg_host_t host1 = MSG_host_by_name("MyHost1");
25 msg_host_t host2 = MSG_host_by_name("MyHost2");
26 msg_host_t host3 = MSG_host_by_name("MyHost3");
29 XBT_INFO("Creating and starting two VMs");
30 msg_vm_t vm_host1 = MSG_vm_create(host1, "vm_host1", 2048, 10, 50);
31 MSG_vm_start(vm_host1);
32 msg_vm_t vm_host3 = MSG_vm_create(host3, "vm_host3", 2048, 10, 50);
33 MSG_vm_start(vm_host3);
35 XBT_INFO("Create two tasks on Host1: one inside a VM, the other directly on the host");
36 MSG_process_create("p11", worker_func, NULL, vm_host1);
37 MSG_process_create("p12", worker_func, NULL, host1);
39 XBT_INFO("Create two tasks on Host2: both directly on the host");
40 MSG_process_create("p21", worker_func, NULL, host2);
41 MSG_process_create("p22", worker_func, NULL, host2);
43 XBT_INFO("Create two tasks on Host3: both inside a VM");
44 MSG_process_create("p31", worker_func, NULL, vm_host3);
45 MSG_process_create("p32", worker_func, NULL, vm_host3);
47 XBT_INFO("Wait 5 seconds. The tasks are still running (they run for 3 seconds, but 2 tasks are co-located, "
48 "so they run for 6 seconds)");
50 XBT_INFO("Wait another 5 seconds. The tasks stop at some point in between");
53 MSG_vm_shutdown(vm_host1);
54 MSG_vm_shutdown(vm_host3);
55 MSG_vm_destroy(vm_host1);
56 MSG_vm_destroy(vm_host3);
61 int main(int argc, char *argv[])
63 sg_host_energy_plugin_init();
64 MSG_init(&argc, argv);
66 xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
68 MSG_create_environment(argv[1]);
70 MSG_process_create("dvfs",dvfs,NULL,MSG_host_by_name("MyHost1"));
72 msg_error_t res = MSG_main();
74 XBT_INFO("Total simulation time: %.2f; All hosts must have the exact same energy consumption.", MSG_get_clock());