convert msg/energy-consumption to c/energy-exec

[simgrid.git] / examples / c / energy-exec / energy-exec.c

diff --git a/examples/c/energy-exec/energy-exec.c b/examples/c/energy-exec/energy-exec.c
new file mode 100644 (file)
index 0000000..bddb036
--- /dev/null
+++ b/examples/c/energy-exec/energy-exec.c
@@ -0,0 +1,85 @@
+/* Copyright (c) 2007-2020. 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/actor.h"
+#include "simgrid/engine.h"
+#include "simgrid/host.h"
+#include "simgrid/plugins/energy.h"
+#include "xbt/asserts.h"
+#include "xbt/config.h"
+#include "xbt/log.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(energy_exec, "Messages specific for this example");
+
+static void dvfs(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED char* argv[])
+{
+  sg_host_t host = sg_host_by_name("MyHost1");
+
+  XBT_INFO("Energetic profile: %s", sg_host_get_property_value(host, "wattage_per_state"));
+  XBT_INFO("Initial peak speed=%.0E flop/s; Energy dissipated =%.0E J", sg_host_speed(host),
+           sg_host_get_consumed_energy(host));
+
+  double start = simgrid_get_clock();
+  XBT_INFO("Sleep for 10 seconds");
+  sg_actor_sleep_for(10);
+  XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E; Energy dissipated=%.2f J",
+           simgrid_get_clock() - start, sg_host_speed(host), sg_host_get_consumed_energy(host));
+
+  // Run a task
+  start = simgrid_get_clock();
+  XBT_INFO("Run a task of %.0E flops", 100E6);
+  sg_actor_self_execute(100E6);
+  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_get_clock() - start, sg_host_speed(host), sg_host_get_wattmin_at(host, sg_host_get_pstate(host)),
+           sg_host_get_wattmax_at(host, sg_host_get_pstate(host)), sg_host_get_consumed_energy(host));
+
+  // ========= Change power peak =========
+  int pstate = 2;
+  sg_host_set_pstate(host, pstate);
+  XBT_INFO("========= Requesting pstate %d (speed should be of %.0E flop/s and is of %.0E flop/s)", pstate,
+           sg_host_get_pstate_speed(host, pstate), sg_host_speed(host));
+
+  // Run a second task
+  start = simgrid_get_clock();
+  XBT_INFO("Run a task of %.0E flops", 100E6);
+  sg_actor_self_execute(100E6);
+  XBT_INFO("Task done (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+           simgrid_get_clock() - start, sg_host_speed(host), sg_host_get_consumed_energy(host));
+
+  start = simgrid_get_clock();
+  XBT_INFO("Sleep for 4 seconds");
+  sg_actor_sleep_for(4);
+  XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+           simgrid_get_clock() - start, sg_host_speed(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(sg_host_by_name("MyHost2")));
+  sg_host_turn_off(sg_host_by_name("MyHost2"));
+  start = simgrid_get_clock();
+  sg_actor_sleep_for(10);
+  XBT_INFO("Done sleeping (duration: %.2f s). Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
+           simgrid_get_clock() - start, sg_host_speed(host), sg_host_get_consumed_energy(host));
+}
+
+int main(int argc, char* argv[])
+{
+  simgrid_init(&argc, argv);
+  sg_cfg_set_string("plugin", "host_energy");
+
+  xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
+
+  simgrid_load_platform(argv[1]);
+  sg_actor_t actor = sg_actor_init("dvfs_test", sg_host_by_name("MyHost1"));
+  sg_actor_start(actor, dvfs, 0, NULL);
+
+  simgrid_run();
+
+  XBT_INFO("End of simulation");
+
+  return 0;
+}