+/* Copyright (c) 2007-2017. 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 "simgrid/s4u.hpp"
+#include "simgrid/plugins/energy.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
+
+static void dvfs()
+{
+ simgrid::s4u::Host* host1 = simgrid::s4u::Host::by_name("MyHost1");
+ simgrid::s4u::Host* host2 = simgrid::s4u::Host::by_name("MyHost2");
+
+ XBT_INFO("Energetic profile: %s", host1->getProperty("watt_per_state"));
+ XBT_INFO("Initial peak speed=%.0E flop/s; Energy dissipated =%.0E J", host1->getSpeed(),
+ sg_host_get_consumed_energy(host1));
+
+ double start = simgrid::s4u::Engine::getClock();
+ XBT_INFO("Sleep for 10 seconds");
+ simgrid::s4u::this_actor::sleep_for(10);
+ XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E; Energy dissipated=%.2f J",
+ simgrid::s4u::Engine::getClock() - start, host1->getSpeed(), sg_host_get_consumed_energy(host1));
+
+ // Execute something
+ start = simgrid::s4u::Engine::getClock();
+ double flopAmount = 100E6;
+ XBT_INFO("Run a task of %.0E flops", flopAmount);
+ simgrid::s4u::this_actor::execute(flopAmount);
+ XBT_INFO("Task done (duration: %.2f s). Current peak speed=%.0E flop/s; Current consumption: from %.0fW to %.0fW"
+ " depending on load; Energy dissipated=%.0f J",
+ simgrid::s4u::Engine::getClock() - start, host1->getSpeed(),
+ sg_host_get_wattmin_at(host1, host1->getPstate()), sg_host_get_wattmax_at(host1, host1->getPstate()),
+ sg_host_get_consumed_energy(host1));
+
+ // ========= Change power peak =========
+ int pstate = 2;
+ host1->setPstate(pstate);
+ XBT_INFO("========= Requesting pstate %d (speed should be of %.0E flop/s and is of %.0E flop/s)", pstate,
+ host1->getPstateSpeed(pstate), host1->getSpeed());
+
+ // Run another task
+ start = simgrid::s4u::Engine::getClock();
+ XBT_INFO("Run a task of %.0E flops", flopAmount);
+ simgrid::s4u::this_actor::execute(flopAmount);
+ XBT_INFO("Task done (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ simgrid::s4u::Engine::getClock() - start, host1->getSpeed(), sg_host_get_consumed_energy(host1));
+
+ start = simgrid::s4u::Engine::getClock();
+ XBT_INFO("Sleep for 4 seconds");
+ simgrid::s4u::this_actor::sleep_for(4);
+ XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ simgrid::s4u::Engine::getClock() - start, host1->getSpeed(), sg_host_get_consumed_energy(host1));
+
+ // =========== Turn the other host off ==========
+ XBT_INFO("Turning MyHost2 off, and sleeping another 10 seconds. MyHost2 dissipated %.0f J so far.",
+ sg_host_get_consumed_energy(host2));
+ host2->turnOff();
+ start = simgrid::s4u::Engine::getClock();
+ simgrid::s4u::this_actor::sleep_for(10);
+ XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+ simgrid::s4u::Engine::getClock() - start, host1->getSpeed(), sg_host_get_consumed_energy(host1));
+}
+
+int main(int argc, char* argv[])
+{
+ sg_host_energy_plugin_init();
+ simgrid::s4u::Engine e(&argc, argv);
+
+ xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
+
+ e.loadPlatform(argv[1]);
+ simgrid::s4u::Actor::createActor("dvfs_test", simgrid::s4u::Host::by_name("MyHost1"), dvfs);
+
+ e.run();
+
+ XBT_INFO("End of simulation.");
+
+ return 0;
+}
