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[Condor-users] Condor and MPICH on RH9

Hi all

while trying to set up a MPI universe (MPICH 1.2.4) on our RH9 based
cluster, we've come across the following problem:

Condor seems to rely on sending mails between the Master and machines
in its pool. Now when we try to connect to a pool machine from the
dedicated submitter (which is also the Master) by rsh, we get a
standard RH9 message "You have mail" which throws MPICH off (a message
along the lines of "Weird 0xaxa..."). MPI's tstmachines therefore
gives us errors.

I'm trying to find out how to:
a) turn the "You have mail" message off for non-interactive RH9 sessions or
b) use Condor/MPI without mail

Am I going down the right road here ? Any hints? 
All comments welcome...