Simple cluster for MPI runs In the following exercises, we set a master and a compute node, n01, VMs. They will communicate over the private virtual network. NFSv4 shared file system, /home/NFSv4, with the server on master and the client on n01. User hostadm home directory is migrated onto the NFSv4. Passwordless SSH public/private key authentication between master and n01. MPI installed on the both VMs: