1 /* Copyright (c) 2007-2020. 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/actor.h"
8 #include "simgrid/engine.h"
9 #include "simgrid/host.h"
10 #include "simgrid/plugins/energy.h"
11 #include "simgrid/vm.h"
12 #include "xbt/asserts.h"
15 XBT_LOG_NEW_DEFAULT_CATEGORY(energy_vm, "Messages of this example");
17 static void worker_func(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED char* argv[])
19 sg_actor_execute(300E6);
20 XBT_INFO("This worker is done.");
23 static void dvfs(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED char* argv[])
25 sg_host_t host1 = sg_host_by_name("MyHost1");
26 sg_host_t host2 = sg_host_by_name("MyHost2");
27 sg_host_t host3 = sg_host_by_name("MyHost3");
30 XBT_INFO("Creating and starting two VMs");
31 sg_vm_t vm_host1 = sg_vm_create_core(host1, "vm_host1");
32 sg_vm_start(vm_host1);
33 sg_vm_t vm_host2 = sg_vm_create_core(host2, "vm_host2");
34 sg_vm_start(vm_host2);
36 XBT_INFO("Create two tasks on Host1: both inside a VM");
37 sg_actor_create("p11", (sg_host_t)vm_host1, worker_func, 0, NULL);
38 sg_actor_create("p12", (sg_host_t)vm_host1, worker_func, 0, NULL);
40 XBT_INFO("Create two tasks on Host2: one inside a VM, the other directly on the host");
41 sg_actor_create("p21", (sg_host_t)vm_host2, worker_func, 0, NULL);
42 sg_actor_create("p22", host2, worker_func, 0, NULL);
44 XBT_INFO("Create two tasks on Host3: both directly on the host");
45 sg_actor_create("p31", host3, worker_func, 0, NULL);
46 sg_actor_create("p32", host3, worker_func, 0, NULL);
48 XBT_INFO("Wait 5 seconds. The tasks are still running (they run for 3 seconds, but 2 tasks are co-located, "
49 "so they run for 6 seconds)");
50 sg_actor_sleep_for(5);
51 XBT_INFO("Wait another 5 seconds. The tasks stop at some point in between");
52 sg_actor_sleep_for(5);
54 sg_vm_destroy(vm_host1);
55 sg_vm_destroy(vm_host2);
58 int main(int argc, char* argv[])
60 sg_host_energy_plugin_init();
61 simgrid_init(&argc, argv);
63 xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
65 simgrid_load_platform(argv[1]);
67 sg_actor_create("dvfs", sg_host_by_name("MyHost1"), dvfs, 0, NULL);
71 XBT_INFO("Total simulation time: %.2f; Host2 and Host3 must have the exact same energy consumption; Host1 is "
72 "multi-core and will differ.",