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Subject: Re: [OMPI users] Segfault on mpirun with OpenMPI 1.4.5rc2
From: Götz Waschk (goetz.waschk_at_[hidden])
Date: 2012-02-01 03:39:04

On Tue, Jan 31, 2012 at 8:19 PM, Daniel Milroy
<Daniel.Milroy_at_[hidden]> wrote:
> Hello,
> I have built OpenMPI 1.4.5rc2 with Intel 12.1 compilers in an HPC
> environment.  We are running RHEL 5, kernel 2.6.18-238 with Intel Xeon
> X5660 cpus.  You can find my build options below.  In an effort to
> test the OpenMPI build, I compiled "Hello world" with an mpi_init call
> in C and Fortran.  Mpirun of both versions on a single node results in
> a segfault.  I have attached the pertinent portion of gdb's output of
> the "Hello world" core dump.

Hi Daniel,

that looks like the problem I had with my intel build of openmpi. I
could solve it by upgrading the Intel Compiler version to
% icc -v
icc version 12.1.2 (gcc version 4.4.5 compatibility)
% icc -V
Intel(R) C Intel(R) 64 Compiler XE for applications running on
Intel(R) 64, Version 12.1 Build 20111128
Copyright (C) 1985-2011 Intel Corporation. All rights reserved.

After a rebuild of the openmpi runtime, the crashes went away. I was
using openmpi 1.5.3, but you could still have the same problem.

Regards, Götz