So I have downloaded both mpi4py and open mpi. When I attempt to run the
command: mpirun -np 2 /home/student/relax-4.0.2/relax -multi='mpi4py' -tee

I receive this error

Usage: relax [options] [script_file]

RelaxError: incorrect number of arguments
Usage: relax [options] [script_file]

RelaxError: incorrect number of arguments

I am using a fedora linux computer. This is for attempting to use
multiprocessors for model-free anlysis.

On Tue, Aug 30, 2016 at 10:05 AM, Edward d'Auvergne <>

> On 30 August 2016 at 17:08, Mahdi, Sam <> wrote:
> > Hi Edward,
> >
> > Thanks for the quick reply. In the "Further Details" section that shows
> the
> > email archive. When Dr. Thompson is setting up the code to run relax in a
> > multi-processor mode he uses the commands "lamboot" and "lamhalt". From
> what
> > I could find, these are commands from the lam/mpi program and not open
> mpi.
> > I know in the manual in "usage of the multi-processor" page, it shows the
> > open mpi command "mpirun", but that is the only indication I've seen of
> > using open mpi to start relax in multi-processor mode.
> I think the old mpi4py can handle these older MPI implementations as
> well.  Anyway, you only need that "mpirun" command.
> Regards,
> Edward
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