This release comes with an experimental support for the OpenMPI library. We have added the library into our release system in order to make its simple to develop portable MPI applications for ourselves as well as to make the very same process easier for our users. Please, read notes below to learn about specific requirements fo developing the MPI applications within our releases.
One can find a complete list of features supported in the build by running the following command from the release:
% sit_setup % ompi_info Package: Open MPI psrel@psdev106 Distribution Open MPI: 1.8.1 Open MPI repo revision: r31483 Open MPI release date: Apr 22, 2014 Open RTE: 1.8.1 Open RTE repo revision: r31483 Open RTE release date: Apr 22, 2014 OPAL: 1.8.1 OPAL repo revision: r31483 OPAL release date: Apr 22, 2014 MPI API: 3.0 Ident string: 1.8.1 Prefix: /reg/g/psdm/sw/external/openmpi/1.8.1/x86_64-rhel5-gcc41-opt Configured architecture: x86_64-unknown-linux-gnu ... |
Please, let us know if anything else would need to be added/changes in the installation. We will evaluate your request to see if we could make it possible.
To begin using MPI in a C/C++ application one should include the following header:
#include "openmpi/mpi.h" |
Note that typical examples found in various MPI documentation portals would usually suggest to include this header as:
#include <mpi.h> |
If you have an existing application which needs to be integrated into our release then you will have to modify your source code accordingly.
setenv OPAL_PREFIX /reg/g/psdm/sw/external/openmpi/1.8.1/x86_64-rhel5-gcc41-opt/ |
The above shown environment variable is not needed at SLAC or if the software is installed at /reg/g/psdm. |
The pyana framework is no longer officially supported. Please, take some time to migrate your application to the psana modules framework as soon as possible. |