Try to ensure test reproducibility.

[simgrid.git] / examples / s4u / dht-chord / s4u-dht-chord.cpp

diff --git a/examples/s4u/dht-chord/s4u-dht-chord.cpp b/examples/s4u/dht-chord/s4u-dht-chord.cpp
index 5c819f1..b8d20a7 100644 (file)
--- a/examples/s4u/dht-chord/s4u-dht-chord.cpp
+++ b/examples/s4u/dht-chord/s4u-dht-chord.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2010-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2010-2019. 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. */
@@ -6,44 +6,19 @@
 #include "s4u-dht-chord.hpp"
 
 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_chord, "Messages specific for this s4u example");
-simgrid::xbt::Extension<simgrid::s4u::Host, HostChord> HostChord::EXTENSION_ID;
 
 int nb_bits  = 24;
 int nb_keys  = 0;
 int timeout  = 50;
-int* powers2 = nullptr;
 
-/* Global initialization of the Chord simulation. */
-static void chord_init()
-{
-  // compute the powers of 2 once for all
-  powers2 = new int[nb_bits];
-  int pow = 1;
-  for (int i = 0; i < nb_bits; i++) {
-    powers2[i] = pow;
-    pow        = pow << 1;
-  }
-  nb_keys = pow;
-  XBT_DEBUG("Sets nb_keys to %d", nb_keys);
-
-  HostChord::EXTENSION_ID = simgrid::s4u::Host::extension_create<HostChord>();
-
-  std::vector<simgrid::s4u::Host*> list;
-  simgrid::s4u::Engine::getInstance()->getHostList(&list);
-  for (auto const& host : list)
-    host->extension_set(new HostChord(host));
-}
-
-static void chord_exit()
-{
-  delete[] powers2;
-}
+std::mt19937 generator;
 
 int main(int argc, char* argv[])
 {
   simgrid::s4u::Engine e(&argc, argv);
-  xbt_assert(argc > 2, "Usage: %s [-nb_bits=n] [-timeout=t] platform_file deployment_file\n"
-                       "\tExample: %s ../msg_platform.xml chord.xml\n",
+  xbt_assert(argc > 2,
+             "Usage: %s [-nb_bits=n] [-timeout=t] platform_file deployment_file\n"
+             "\tExample: %s ../platforms/cluster_backbone.xml ./s4u-dht-chord_d.xml\n",
              argv[0], argv[0]);
   char** options = &argv[1];
   while (not strncmp(options[0], "-", 1)) {
@@ -63,18 +38,17 @@ int main(int argc, char* argv[])
     options++;
   }
 
-  e.loadPlatform(options[0]);
+  e.load_platform(options[0]);
 
-  chord_init();
+  /* Global initialization of the Chord simulation. */
+  nb_keys = 1U << nb_bits;
+  XBT_DEBUG("Sets nb_keys to %d", nb_keys);
 
-  e.registerFunction<Node>("node");
-  e.loadDeployment(options[1]);
+  e.register_actor<Node>("node");
+  e.load_deployment(options[1]);
 
   e.run();
 
-  XBT_INFO("Simulated time: %g", e.getClock());
-
-  chord_exit();
-
+  XBT_INFO("Simulated time: %g", e.get_clock());
   return 0;
 }