rework an example. less XML more programmatic

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

diff --git a/examples/cpp/platform-profile/s4u-platform-profile.cpp b/examples/cpp/platform-profile/s4u-platform-profile.cpp
index 85b8e04b562f181b4287bd19140df8fa64ca41e7..cc64d69f5b8c95ae44b0b02adae653d371c90863 100644 (file)
--- a/examples/cpp/platform-profile/s4u-platform-profile.cpp
+++ b/examples/cpp/platform-profile/s4u-platform-profile.cpp
@@ -3,27 +3,28 @@
 /* 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/kernel/ProfileBuilder.hpp"
 #include "simgrid/s4u.hpp"
 
-/* This example demonstrates how to attach a profile to a 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.
- */
+/* This example demonstrates how to attach a profile to a 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 actor */
 static void watcher()
 {
-  const simgrid::s4u::Host* jupiter = simgrid::s4u::Host::by_name("Jupiter");
-  const simgrid::s4u::Host* fafard  = simgrid::s4u::Host::by_name("Fafard");
-  const simgrid::s4u::Link* link1   = simgrid::s4u::Link::by_name("1");
-  const simgrid::s4u::Link* link2   = simgrid::s4u::Link::by_name("2");
+  const auto* jupiter  = simgrid::s4u::Host::by_name("Jupiter");
+  const auto* fafard   = simgrid::s4u::Host::by_name("Fafard");
+  const auto* lilibeth = simgrid::s4u::Host::by_name("Lilibeth");
+  const auto* link1    = simgrid::s4u::Link::by_name("1");
+  const auto* 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)",
+    XBT_INFO("Fafard: %.0fMflops, Jupiter: %4.0fMflops, Lilibeth: %3.1fMflops, 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,
+             jupiter->get_speed() * jupiter->get_available_speed() / 1000000,
+             lilibeth->get_speed() * lilibeth->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);
   }
@@ -33,13 +34,25 @@ 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]);
+  xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s platform.xml\n", argv[0], argv[0]);
 
   e.load_platform(argv[1]);
 
-  simgrid::s4u::Actor::create("watcher", e.host_by_name("Tremblay"), watcher);
-
-  e.run(); /* - Run the simulation */
+  // Add a new host programmatically, and attach a simple speed profile to it (alternate between full and half speed
+  // every two seconds
+  e.get_netzone_root()
+      ->create_host("Lilibeth", 25e6)
+      ->set_speed_profile(simgrid::kernel::profile::ProfileBuilder::from_string("lilibeth_profile", R"(
+0 1.0
+2 0.5
+)",
+                                                                                2))
+      ->seal();
+
+  // Add a watcher of the changes
+  simgrid::s4u::Actor::create("watcher", e.host_by_name("Fafard"), watcher);
+
+  e.run();
 
   return 0;
 }