1 /* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/s4u.hpp"
7 #include "simgrid/plugins/energy.h"
8 #include "simgrid/s4u/VirtualMachine.hpp"
10 XBT_LOG_NEW_DEFAULT_CATEGORY(energy_vm, "Messages of this example");
11 namespace sg4 = simgrid::s4u;
13 static void executor()
15 sg4::this_actor::execute(300E6);
16 XBT_INFO("This worker is done.");
21 sg4::Host* host1 = sg4::Host::by_name("MyHost1");
22 sg4::Host* host2 = sg4::Host::by_name("MyHost2");
23 sg4::Host* host3 = sg4::Host::by_name("MyHost3");
26 XBT_INFO("Creating and starting two VMs");
27 auto* vm_host1 = host1->create_vm("vm_host1", 1);
29 auto* vm_host2 = host2->create_vm("vm_host2", 1);
32 XBT_INFO("Create two activities on Host1: both inside a VM");
33 sg4::Actor::create("p11", vm_host1, executor);
34 sg4::Actor::create("p12", vm_host1, executor);
36 XBT_INFO("Create two activities on Host2: one inside a VM, the other directly on the host");
37 sg4::Actor::create("p21", vm_host2, executor);
38 sg4::Actor::create("p22", host2, executor);
40 XBT_INFO("Create two activities on Host3: both directly on the host");
41 sg4::Actor::create("p31", host3, executor);
42 sg4::Actor::create("p32", host3, executor);
44 XBT_INFO("Wait 5 seconds. The activities are still running (they run for 3 seconds, but 2 activities are co-located, "
45 "so they run for 6 seconds)");
46 sg4::this_actor::sleep_for(5);
47 XBT_INFO("Wait another 5 seconds. The activities stop at some point in between");
48 sg4::this_actor::sleep_for(5);
54 int main(int argc, char* argv[])
56 sg_host_energy_plugin_init();
57 sg4::Engine e(&argc, argv);
59 xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s ../platforms/energy_platform.xml\n", argv[0], argv[0]);
61 e.load_platform(argv[1]);
63 sg4::Actor::create("dvfs", e.host_by_name("MyHost1"), dvfs);
67 XBT_INFO("Total simulation time: %.2f; Host2 and Host3 must have the exact same energy consumption; Host1 is "
68 "multi-core and will differ.",
69 sg4::Engine::get_clock());