AMBER Archive (2003)

Subject: mpirun problem: no rsh

From: Peter Anderson (toutvabien78_at_yahoo.com)
Date: Wed Jun 18 2003 - 12:50:26 CDT

Dear Amber Users,

I'm having a problem with doing parallel runs for
sander. Last week I was able to do them without any
problems at all by entering the following command and
options:

% mpirun -np 4 /apps/amber/amber7/exe/sander -O -i
...

I have a proper .rhosts file. Now, however, when I
try to do the same thing, I get a message stating

  feynman10.pharm.net: No route to host

['feynman' is the name of our Linux cluster.]

When I enter the ps -u command, I notice that there
are no rsh jobs running now, but last week, when
everything was working fine, the rsh jobs were
running.

I assume that no rsh means that the processors can't
communicate with one another properly. Does anyone
know how I can make the rsh work again?

Thank you very much,
Peter Anderson

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