[Beowulf] Can we set MPICH to use ssh instead of rsh at runtime?

[Rusty Lusk]

> Hi,
> 
> Can we set MPICH to use ssh instead of rsh at runtime? I know it can be
> set in compile time by configure opinion. And LAM can do that by setting
> $LAMRSH environment variable. 
> 

No, there is not a way to do that.  I would recommend the use of MPICH2
(http://www.mcs.anl.gov/mpi/mpich2), which doesn't use rsh or ssh to
start jobs, but rather a set of daemons.  The daemons can be started any
way you like, including either rsh or ssh.

Regards,
Rusty Lusk