Uninstalling Scyld ClusterWare

1. Reboot the master node into a non Scyld ClusterWare kernel.

2. Use yum groupremove to uninstall ClusterWare:

   [root@scyld ~]# yum groupremove Scyld-ClusterWare
   

3. Restore any base distribution packages that were explicitly removed when you installed Scyld ClusterWare, e.g., openmpi* mvapich*.