Re: r28234 - in /trunk/devel_scripts: deploy_google_computing_redhat_6_86_x64.sh openmpi_test_install.sh -- October 01, 2016 - 11:37

On 1 October 2016 at 11:26, Edward d'Auvergne <edward@xxxxxxxxxxxxx> wrote:
> On 1 October 2016 at 01:21,  <tlinnet@xxxxxxxxxxxxx> wrote:
> > Author: tlinnet
> > Date: Sat Oct  1 01:21:30 2016
> > New Revision: 28234
> >
> > URL: http://svn.gna.org/viewcvs/relax?rev=28234&view=rev
> > Log:
> > Added initial script for testing openmpi.
> >
> > Added:
> >     trunk/devel_scripts/openmpi_test_install.sh
> > Modified:
> >     trunk/devel_scripts/deploy_google_computing_redhat_6_86_x64.sh
>
> Hi Troels,
>
> I would suggest adding a simple Python hello world script (e.g.
> https://github.com/erdc-cm/mpi4py/blob/master/demo/helloworld.py).
> That way you can test OpenMPI by itself, mpi4py in pure Python, and
> mpi4py in relax.  It will isolate the problem to either MPI, mpi4py or
> relax.

Here is a simple way to do it from the command line:

[edward@localhost relax-trunk]$ mpirun -np 4 python -c "from mpi4py
import MPI; print('Process %d of %d on %s.' %
(MPI.COMM_WORLD.Get_rank(), MPI.COMM_WORLD.Get_size(),
MPI.Get_processor_name()))"
Process 2 of 4 on localhost.localdomain.
Process 3 of 4 on localhost.localdomain.
Process 0 of 4 on localhost.localdomain.
Process 1 of 4 on localhost.localdomain.
[edward@localhost relax-trunk]$

Regards,

Edward