Newsgroups: comp.parallel.mpi
From: Matthias Linke <mlinke>
Subject: SIGSEGV-Error using MPICH
Organization: University of Rostock
Date: 20 Mar 1996 08:39:46 GMT
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Message-ID: <4iog8i$s8i@taiwan.informatik.uni-rostock.de>

Hi,

I wrote a MPI program and want to test it now. But there is an error that
makes me crazy. I don't know how to solve it. Maybe someone of you can show
me how to overcome this problem or may tell me where to look for help.
And here is the problem.

We run MPICH on a cluster of RS6000-WS. Starting my executable using mpirun -v
shows the following output.

running /h07/tfb013/pvm3/bin/RS6K/MPIALL on 4 rs6000 p4 processors
Created /h07/tfb013/pvm3/bin/RS6K/PI22293

One of the 4 processes is the master. This master wants to send some data to
the 3 slaves. These slaves are waiting for the receive. But then the following
output appears on the screen.

p0_26180:  p4_error: Found a dead connection while looking for messages: 1
bm_list_21829:  p4_error: interrupt SIGINT: 2
rm_l_0_16555:  p4_error: interrupt SIGINT: 2
p2_14250:  p4_error: interrupt SIGINT: 2
rm_l_0_24352:  p4_error: interrupt SIGINT: 2
p3_26911:  p4_error: interrupt SIGINT: 2
p1_18516:  p4_error: interrupt SIGSEGV: 11
rm_l_779447913_13653:  p4_error: interrupt SIGINT: 2

I tried to find out what these messages mean. But even looking at the MPICH-
pages on WWW couldn't help me. Please, show me a way to get this problem
solved.

Thanks in advance.

Cheers, Matthias.

=========================================================================
 
Matthias Linke                  _/_/_/_/ _/_/_/      _/   _/     _/ 
Rostock University             _/       _/    _/    _/   _/_/   _/ 
Dept. of Computer Science     _/_/_/   _/_/_/      _/   _/ _/  _/  
18051 Rostock                _/       _/    _/    _/   _/   _/_/  
Germany            \----\   _/       _/_/_/_/    _/   _/     _/  /----/
                    \------------------------------------------------/
                     \----------- UNIVERSITAET  ROSTOCK ------------/
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
phone   +49 381 4893374                 fax     +49 381 4982498
email   mlinke@informatik.uni-rostock.de
        matthias.linke@inf.uni-rostock.de
URL     http://www.informatik.uni-rostock.de/~mlinke/
=========================================================================


