this was no simdag

[simgrid.git] / teshsuite / s4u / evaluate-get-route-time / evaluate-get-route-time.cpp

diff --git a/teshsuite/s4u/evaluate-get-route-time/evaluate-get-route-time.cpp b/teshsuite/s4u/evaluate-get-route-time/evaluate-get-route-time.cpp
new file mode 100644 (file)
index 0000000..2d62eab
--- /dev/null
+++ b/teshsuite/s4u/evaluate-get-route-time/evaluate-get-route-time.cpp
@@ -0,0 +1,51 @@
+/* Copyright (c) 2008-2020. 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. */
+
+/*
+for i in $(seq 1 20); do
+  teshsuite/s4u/evaluate-get-route-time/evaluate-get-route-time examples/platforms/cluster_backbone.xml 1 2> /tmp/null
+  sleep 1
+done
+*/
+
+#include "simgrid/s4u.hpp"
+#include "xbt/xbt_os_time.h"
+#include <stdio.h>
+
+int main(int argc, char** argv)
+{
+  int i;
+  int j;
+  xbt_os_timer_t timer = xbt_os_timer_new();
+
+  simgrid::s4u::Engine e(&argc, argv);
+  e.load_platform(argv[1]);
+
+  std::vector<simgrid::s4u::Host*> hosts = e.get_all_hosts();
+  int host_count                         = e.get_host_count();
+
+  /* Random number initialization */
+  srand(static_cast<int>(xbt_os_time()));
+
+  /* Take random i and j, with i != j */
+  xbt_assert(host_count > 1);
+  i = rand() % host_count;
+  j = rand() % (host_count - 1);
+  if (j >= i) // '>=' is not a bug: j is uniform on host_count-1 values, and shifted on need to maintain uniform random
+    j++;
+
+  printf("%d\tand\t%d\t\t", i, j);
+
+  std::vector<simgrid::s4u::Link*> route;
+
+  xbt_os_cputimer_start(timer);
+  hosts[i]->route_to(hosts[j], route, nullptr);
+  xbt_os_cputimer_stop(timer);
+
+  printf("%f\n", xbt_os_timer_elapsed(timer));
+
+  return 0;
+}