Testing tools

The bandwidth and latency measures were made using the standard

                 gm_allsize 

Myricom script, coming with GM software. On one node, the command was invoked in slave mode with
 
                 ./gm_allsize --slave --size=20 </tt>

, on the other, it was invoked with
                 ./gm_allsize -u -bw -h node1 --size=20 --geometric </tt>.