add an example of speed profile in the platform

[simgrid.git] / examples / s4u / platform-profile / s4u-platform-profile.cpp

diff --git a/examples/s4u/platform-profile/s4u-platform-profile.cpp b/examples/s4u/platform-profile/s4u-platform-profile.cpp
new file mode 100644 (file)
index 0000000..0da24ff
--- /dev/null
+++ b/examples/s4u/platform-profile/s4u-platform-profile.cpp
@@ -0,0 +1,45 @@
+/* Copyright (c) 2017-2019. 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"
+
+/* This example demonstrates how to attach a profile to an host or a link,
+ * to specify external changes to the resource speed. The first way to do
+ * so is to use a file in the XML, while the second is to use the programmatic interface.
+ */
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_platform_profile, "Messages specific for this s4u example");
+
+/* Main function of the Yielder process */
+static void watcher()
+{
+  simgrid::s4u::Host* jupiter = simgrid::s4u::Host::by_name("Jupiter");
+  simgrid::s4u::Host* fafard  = simgrid::s4u::Host::by_name("Fafard");
+  simgrid::s4u::Link* link1   = simgrid::s4u::Link::by_name("1");
+  simgrid::s4u::Link* link2   = simgrid::s4u::Link::by_name("2");
+
+  for (int i = 0; i < 10; i++) {
+    XBT_INFO("Fafard: %.0fGflops, Jupiter: % 3.0fGflops, Link1: (%.2fMB/s %.0fms), Link2: (%.2fMB/s %.0fms)",
+             fafard->get_speed() * fafard->get_available_speed() / 1000000,
+             jupiter->get_speed() * jupiter->get_available_speed() / 1000000, link1->get_bandwidth() / 1000,
+             link1->get_latency() * 1000, link2->get_bandwidth() / 1000, link2->get_latency() * 1000);
+    simgrid::s4u::this_actor::sleep_for(1);
+  }
+};
+
+int main(int argc, char* argv[])
+{
+  simgrid::s4u::Engine e(&argc, argv);
+
+  xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s platform.xml deployment.xml\n", argv[0], argv[0]);
+
+  e.load_platform(argv[1]);
+
+  simgrid::s4u::Actor::create("watcher", simgrid::s4u::Host::by_name("Tremblay"), watcher);
+
+  e.run(); /* - Run the simulation */
+
+  return 0;
+}