Newsgroups: comp.parallel.pvm
From: Christopher Murray <cjm18@dsknepper.nuce.psu.edu>
Subject: Error while running on Solaris.  HELP!
Organization: Penn State University, Center for Academic Computing
Date: Sun, 15 Dec 1996 14:02:04 -0500
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Message-ID: <Pine.A32.3.95.961215134624.17325A-100000@dsknepper.nuce.psu.edu>


Hi all,

Does anyone out there have any experience running PVM under Solaris?  I am
in the process of testing out a coupled code on hte Solaris OS.
Initially, I would like to run them in parallel on the same machine just
to make sure that I get the same answers as a version I have which runs on
AIX.  The two codes which have been coupled together run fine on AIX and 
compile fine on SOLARIS.  However, when I run them on the SUN machine, the
slave process spawned by the controlling process dies for no apparent 
reason.  It spawns OK, but dies after only executing a few lines of the
code.  A check of the /tmp/pvml.PID file reveals the following error
message - 

[t80040000] netoutput() sendto: No child processes
[t80040000] this message brought to you by solaris

This indicates that the problem is with the OS rather than PVM itself.  I
however, have little experience with the inner workings of a UNIX
operating system so this message baffles me.  I do not think that it is
happening because the I am reaching the maximum number of processes
allowed by hte kernel.  Could it be due to a limitation placed on hte
number of maximum process allowed to be spawned by some controlling
process?  THis might make some sense but I have no idea about how to fix
it.  

Any clues?  Even a source of reference of where I can look for a solution
would be most helpful.

THanks in advance,
Chris Murray
Penn State Dept. of Nuclear Engineering



