Recompile your own version of openmpi in a local directory, set your PATH to your local openmpi install.

export PATH=/my/openmpi/install/include:/usr/local/include

mpicxx -show

On Sep 21, 2008, at 11:05 PM, Shafagh Jafer wrote:

I have tried this, but didn't help :-( could any one help please???

--- On Sun, 9/21/08, Brian Harker <> wrote:
From: Brian Harker <>
Subject: Re: [OMPI users] conflict among differenv MPIs
To: "Open MPI Users" <>
Date: Sunday, September 21, 2008, 6:52 PM

Just specify where each individual MPI distribution's stuff is on the
command line when you compile with mpicc *.c -I$MPICH_HOME/include or
mpicc *.c -I$OPENMPI_HOME/include where the "HOME" directories were
specified with --prefix= when you installed.  Hope this helps.  This
works for me.  Hope this helps.  Cheers!

On Sun, Sep 21, 2008 at 7:37 PM, Shafagh Jafer <> wrote:
> I have both openmpi and MPICH on my cluster, the problem is that mpi.h of
> MPICH is in /usr/local/include and I dont have permission to rename or
> remove it from there. In my source code I am including the mpi.h of
> and this works fine, but then mpi.h itself includes mpicxx.h which it
> includes openmpi's mpi.h and this is my problem becase the system goes
> takes the mpi.h file of MPICH which is in /usr/local/include and thus i
> errors segfaults! I am using mpicc wrapper to compile my code and i think
> problem is due to having other mpi.h files. Am I right?? What should I do
> make /usr/local/include in-accesible from my code??? Please help me!
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