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Subject: Re: [OMPI users] heterogenous cluster
From: David Mathog (mathog_at_[hidden])
Date: 2011-02-02 11:47:34

jody <jody.xha_at_[hidden]> wrote:

> How can i force OpenMPI to be built as a 32Bit application on a 64Bit

THe easiest way is not to - just copy over a build from a 32 bit
machine, it will run on your 64 bit machine if the proper 32 bit
libraries have been installed there. Otherwise, you need to put -m32
on the gcc commmand lines. Generally one does that by something like:

 export CFLAGS=-m32

before running configure to generate Makefiles.


David Mathog
Manager, Sequence Analysis Facility, Biology Division, Caltech