Add OpenMPI host injection script #4

	name: Test for mpi injection script
	on:
	pull_request:
	workflow_dispatch:
	permissions:
	contents: read # to fetch code (actions/checkout)
	jobs:
	build:
	runs-on: ubuntu-24.04
	steps:
	- uses: actions/checkout@v4
	- uses: eessi/github-action-eessi@v3

	- name: Inject OpenMPI libs
	run: \|
	# Needed dir for the injected libs
	mkdir /opt/eessi

	# Load last OpenMPI from 2023b and declaring var for injection path
	module load OpenMPI/4.1.6-GCC-13.2.0
	export OPENMPI_TO_INJECT=$EBROOTOPENMPI
	module purge

	# Inject script
	./scripts/mpi_support/install_openmpi_host_injection.sh --mpi-path $OPENMPI_TO_INJECT

	- name: Check with OSU
	run: \|
	# Load OSU version that uses older OpenMPI
	module load OSU-Micro-Benchmarks/7.1-1-gompi-2023a

	# Verify injected libs are being used
	ldd $(which osu_latency) \| grep host_injections

	# Check it works correctly
	mpirun -n 2 osu_latency
	export output=$?
	if [ $output -ne 0 ]; then
	echo "MPI injection failed, check the logs for more detail"
	else
	echo "MPI injection succeded!"
	fi

Provide feedback