X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1a5ae581508abf014bc4dcbc65f2d5e5af9da573..7862d928239639a5fbde23866f80f1b234ff8396:/examples/msg/energy-consumption/energy-consumption.c

diff --git a/examples/msg/energy-consumption/energy-consumption.c b/examples/msg/energy-consumption/energy-consumption.c
new file mode 100644
index 0000000000..c8fa346078
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+++ b/examples/msg/energy-consumption/energy-consumption.c
@@ -0,0 +1,85 @@
+/* Copyright (c) 2007-2010, 2013-2015. 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/msg.h"
+#include "simgrid/plugins/energy.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
+
+static int dvfs(int argc, char *argv[])
+{
+  msg_host_t host = MSG_host_by_name("MyHost1");
+
+  XBT_INFO("Energetic profile: %s",MSG_host_get_property_value(host,"watt_per_state"));
+  XBT_INFO("Initial peak speed=%.0E flop/s; Energy dissipated =%.0E J", MSG_host_get_current_power_peak(host),
+           sg_host_get_consumed_energy(host));
+
+  double start = MSG_get_clock();
+  XBT_INFO("Sleep for 10 seconds");
+  MSG_process_sleep(10);
+  XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E; Energy dissipated=%.2f J", MSG_get_clock()-start,
+      MSG_host_get_current_power_peak(host), sg_host_get_consumed_energy(host));
+
+  // Run a task
+  start = MSG_get_clock();
+  msg_task_t task1 = MSG_task_create ("t1", 100E6, 0, NULL);
+  XBT_INFO("Run a task of %.0E flops",MSG_task_get_flops_amount(task1));
+  MSG_task_execute (task1);
+  MSG_task_destroy(task1);
+  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", MSG_get_clock()-start,
+           MSG_host_get_current_power_peak(host), sg_host_get_wattmin_at(host,MSG_host_get_pstate(host)),
+           sg_host_get_wattmax_at(host,MSG_host_get_pstate(host)), sg_host_get_consumed_energy(host));
+
+  // ========= Change power peak =========
+  int pstate=2;
+  MSG_host_set_pstate(host, pstate);
+  XBT_INFO("========= Requesting pstate %d (speed should be of %.0E flop/s and is of %.0E flop/s)",
+      pstate, MSG_host_get_power_peak_at(host, pstate), MSG_host_get_current_power_peak(host));
+
+  // Run a second task
+  start = MSG_get_clock();
+  task1 = MSG_task_create ("t2", 100E6, 0, NULL);
+  XBT_INFO("Run a task of %.0E flops",MSG_task_get_flops_amount(task1));
+  MSG_task_execute (task1);
+  MSG_task_destroy(task1);
+  XBT_INFO("Task done (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+      MSG_get_clock()-start, MSG_host_get_current_power_peak(host), sg_host_get_consumed_energy(host));
+
+  start = MSG_get_clock();
+  XBT_INFO("Sleep for 4 seconds");
+  MSG_process_sleep(4);
+  XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+      MSG_get_clock()-start, MSG_host_get_current_power_peak(host), sg_host_get_consumed_energy(host));
+
+  // =========== 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(MSG_host_by_name("MyHost2")) );
+  MSG_host_off(MSG_host_by_name("MyHost2"));
+  start = MSG_get_clock();
+  MSG_process_sleep(10);
+  XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+      MSG_get_clock()-start, MSG_host_get_current_power_peak(host), sg_host_get_consumed_energy(host));
+  return 0;
+}
+
+int main(int argc, char *argv[])
+{
+  msg_error_t res = MSG_OK;
+  sg_energy_plugin_init();
+  MSG_init(&argc, argv);
+
+  xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
+
+  MSG_create_environment(argv[1]);
+  MSG_process_create("dvfs_test", dvfs, NULL, MSG_get_host_by_name("MyHost1"));
+
+  res = MSG_main();
+
+  XBT_INFO("Total simulation time: %.2f", MSG_get_clock());
+
+  return res != MSG_OK;
+}