Newsgroups: comp.parallel.mpi
From: shawn@concannon.llnl.gov (Shawn Dawson)
Subject: MPI/P4 Connection Problem
Organization: UC Davis Dept of Applied Science at LLNL
Date: 25 Jul 1994 18:37:49 GMT
Message-ID: <3110pt$ohj@lll-winken.llnl.gov>

O.K., I've tried everything I can think of but I can't solve 
this little problem.  

I have MPI (using P4 underneath) installed on a network of 8
SGI's.  I cannot get the procgroup file to run the process
on more than 1 workstation.  my procgroup file looks like

local	0
alydar.llnl.gov	1

and when I start the test program named 'cpi' which came with
the mpi distribution I get the following error from p4:

========================================================
{eclipse18} cpi
alydar.llnl.gov: alydar.llnl.gov: cannot open

========================================================

I get the same problem when I try to run P4 tests, so the problem
is at that layer.  What I have checked and tried is:

.rhosts looks good (and pvm3 runs fine on the 8 sgi's)
I've tried variations to the procgroup file such as

alydar	1  
alydar	1	/pathname/
alydar	1	/pathname loginname

And I've tried other workstations besides alydar  

I've gone through the manual looking for suggestions, but have
hit a dead end.  

I'm open to any suggestions on what may be causing this error.

Shawn Dawson
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