Add a test for GH#345

[simgrid.git] / teshsuite / s4u / vm-live-migration / vm-live-migration.cpp

diff --git a/teshsuite/s4u/vm-live-migration/vm-live-migration.cpp b/teshsuite/s4u/vm-live-migration/vm-live-migration.cpp
new file mode 100644 (file)
index 0000000..b5b78b2
--- /dev/null
+++ b/teshsuite/s4u/vm-live-migration/vm-live-migration.cpp
@@ -0,0 +1,54 @@
+/* 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/plugins/energy.h"
+#include "simgrid/plugins/live_migration.h"
+#include "simgrid/s4u.hpp"
+#include <cmath>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(example, "Messages specific for this example");
+
+static void task_executor()
+{
+  simgrid::s4u::ExecPtr ptr = simgrid::s4u::this_actor::exec_init(3000000000.0)->start();
+
+  // ptr->test(); // Harmless
+  simgrid::s4u::this_actor::sleep_for(3); // Breaks everything
+
+  ptr->wait();
+  XBT_INFO("Task done. It's running on %s@%s that runs at %.0ef/s. host2 runs at %.0ef/s", ptr->get_host()->get_cname(),
+           dynamic_cast<simgrid::s4u::VirtualMachine*>(ptr->get_host())->get_pm()->get_cname(),
+           ptr->get_host()->get_speed(), simgrid::s4u::Host::by_name("host2")->get_speed());
+}
+
+int main(int argc, char* argv[])
+{
+  simgrid::s4u::Engine e(&argc, argv);
+  simgrid::s4u::Engine::set_config("network/model:CM02"); // Much less realistic, but easier to compute manually
+
+  sg_vm_live_migration_plugin_init();
+  sg_host_energy_plugin_init();
+
+  xbt_assert(argc == 2, "Usage: %s platform.xml\n", argv[0]);
+
+  e.load_platform(argv[1]);
+  auto* pm = simgrid::s4u::Host::by_name("host1");
+  auto* vm = new simgrid::s4u::VirtualMachine("VM0", pm, 1 /*nCores*/);
+  vm->set_ramsize(1250000000)->start();
+  simgrid::s4u::Actor::create("executor", vm, task_executor);
+
+  simgrid::s4u::Actor::create("migration", pm, [vm]() {
+    XBT_INFO("%s migration started", vm->get_cname());
+    auto* old = vm->get_pm();
+
+    sg_vm_migrate(vm, simgrid::s4u::Host::by_name("host2"));
+
+    XBT_INFO("VM '%s' migrated from '%s' to '%s'", vm->get_cname(), old->get_cname(), vm->get_pm()->get_cname());
+  });
+
+  e.run();
+  return 0;
+}