[Beowulf] MPICH "remote access" speed

[Reuti]

> SSH can be slower when there is alot of ascii output from
> the processes which ssh has to encrypt/decrypt.  SSH does
> start a bit slower, but that is only a startup issue.
> SSH scale better on larger clusters because it can be configured
> not to use privileged ports.
> 
> You can investigate other starting mechanisms like those MPD
> or what MPICH2 uses.  

Another option maybe the in the ch_p4 included serv_p4. - Reuti