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Subject: Re: [OMPI users] Open MPI:Problem with 64-bit openMPIandintel compiler
From: jimkress_58 (jimkress_58_at_[hidden])
Date: 2009-07-24 10:15:47

You can avoid the "library confusion problem" by building 64 bit and 32 bit
version of openMPI in two different directories and then use mpi-selector
(on your head and compute nodes) to switch between the two.

Just my $0.02


-----Original Message-----
From: users-bounces_at_[hidden] [mailto:users-bounces_at_[hidden]] On
Behalf Of Jeff Squyres
Sent: Friday, July 24, 2009 7:22 AM
To: Open MPI Users
Subject: Re: [OMPI users] Open MPI:Problem with 64-bit openMPIandintel

On Jul 23, 2009, at 11:14 PM, Ralph Castain wrote:

> 3. get a multi-node allocation and run "pbsdsh echo $LD_LIBRARY_PATH"
> and see what libs you are defaulting to on the other nodes.

Be careful with this one; you want to ensure that your local shell
doesn't expand $LD_LIBRARY_PATH and simply display the same value on
all nodes. It might be easiest to write a 2 line script and run that:

$ cat myscript
echo LD_LIB_PATH on `hostname` is: $LD_LIBRARY_PATH
$ chmod +x myscript
$ pdsh myscript

Jeff Squyres
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