A repository for OpenMPI builds

Use either RPM or Docker to deploy

sudo yum install docker sudo systemctl start docker

Install HPCCM by following the instructions on the HPCCM GitHub repository: https://github.com/NVIDIA/hpc-container-maker

Navigate to the 'Container' folder in this repository

sudo docker build -t openmpi .

Once the installation process is done, run:

sudo docker run -it --rm --net=host openmpi

Inside the container environment, you can compile the sample program with:

mpicc -o mpi_hello_world mpi_hello_world.c

And then run with:

mpirun -n 4 --allow-run-as-root ./mpi_hello_world

Steps taken:

Install necessary software:

sudo yum install rpm-build rpmdevtools

Build directory structure: rpmdev-setuptree

Create a new Spec file: cd ~/rpmbuild/SPECS rpmdev-newspec openmpi.spec

Build the RPM with: rpmbuild -ba ~/rpmbuild/SPECS/openmpi.spec

To add this repository to your operating system, you need to create a new file called openmpi.repo in the /etc/yum.repos.d/ directory with the following contents:

[openmpi]

name=OpenMPI

baseurl=https://raw.githubusercontent.com/phanchieta/OpenMPI/tree/main/RPM/rpmbuild/RPMS/

enabled=1

gpgcheck=0