With IFORT 10.x the compiler defaulted to 64-bit at install, but there's a script that can be run to switch the compiler to 32-bit mode.

You may want to double check to make sure that it's in 64-bit mode by executing "ifort -V"


Warner Yuen
Scientific Computing
Consulting Engineer
Apple, Inc.
email: wy...@apple.com
Tel: 408.718.2859




On Sep 12, 2009, at 4:37 AM, users-requ...@open-mpi.org wrote:

Message: 4
Date: Fri, 11 Sep 2009 15:35:34 -0700
From: Doug Reeder <d...@rain.org>
Subject: Re: [OMPI users] OpenMPI on OS X - file is not of required
        architecture
To: Open MPI Users <us...@open-mpi.org>
Message-ID: <3fa2d621-d5c7-4579-94b7-8a0bfa040...@rain.org>
Content-Type: text/plain; charset="us-ascii"; Format="flowed";
        DelSp="yes"

Andreas,

Have you checked that ifort is creating 64 bit objects. If I remember
correctly with 10.1 the default was to create 32 bit objects.

Doug Reeder

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