Problem: users other than root cannot run commands on remote nodes using the pssh command.
$ pssh -n 0 date PSI: dospawn: spawn to node 0 failed: Permission denied
By default, only root may spawn processes which are not consuming CPUs. The command pssh uses this way to run a process on a remote node.
To allow other users to spawn this type of processes, add the user or group to the adminuser or admingroup list within ParaStation MPI using the command
psiadmin> set adminuser +username psiadmin> set admingroup +group
or add appropriate
entries to the ParaStation MPI configuration file