Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 6.1 (with Service Pack 1, CentOS 6.3 and GE 2011.11p1) – as has been a common practice for several years now, a full version of Operating System was installed. The HPC cluster (wigner) used to prepare this documentation has Mellanox 56 Gb/s FDR InfiniBand switches and ports. Further, it is assumed the eth0 interface is used for private ethernet network and ib0 is the InfiniBand interface.…