- distribute peers equally among island nodes on SuperMUC

[oweals/gnunet.git] / src / testbed / testbed_api_topology.c

diff --git a/src/testbed/testbed_api_topology.c b/src/testbed/testbed_api_topology.c
index 6bb1e5d733f647e1c73c0e856f577fa3ec313a60..5f6473988a054a986903c0a6c1add373f842249b 100644 (file)
--- a/src/testbed/testbed_api_topology.c
+++ b/src/testbed/testbed_api_topology.c
@@ -1,6 +1,6 @@
 /*
       This file is part of GNUnet
-      (C) 2008--2012 Christian Grothoff (and other contributing authors)
+      (C) 2008--2013 Christian Grothoff (and other contributing authors)
 
       GNUnet is free software; you can redistribute it and/or modify
       it under the terms of the GNU General Public License as published
@@ -429,6 +429,8 @@ gen_topo_ring (struct TopologyContext *tc)
  * @param rows number of rows in the 2d torus. Can be NULL
  * @param rows_len the length of each row. This array will be allocated
  *          fresh. The caller should free it. Can be NULL
+ * @return the number of links that are required to generate a 2d torus for the
+ *           given number of peers
  */
 unsigned int
 GNUNET_TESTBED_2dtorus_calc_links (unsigned int num_peers, unsigned int *rows,
@@ -451,7 +453,7 @@ GNUNET_TESTBED_2dtorus_calc_links (unsigned int num_peers, unsigned int *rows,
   for (y = 0; y < _rows - 1; y++)
     _rows_len[y] = sq_floor;
   _num_peers = sq_floor * sq_floor;
-  cnt = 2 * _num_peers;
+  cnt = (_num_peers < 2) ? _num_peers : 2 * _num_peers;
   x = 0;
   y = 0;
   while (_num_peers < num_peers)