Add gcc openmpi #8

	# main test workflow; ported from .travis.yaml

	name: main

	on:
	push:
	branches: [ '*', $default-branch ]
	pull_request:
	branches: [ $default-branch ]

	jobs:
	build:
	runs-on: ubuntu-latest
	env:
	NUMPY_VERSION: 1.15
	defaults:
	run:
	shell: bash -l {0}
	strategy:
	matrix:
	python-version: ['3.7','3.10', '3.12']
	steps:
	- name: Checkout source code
	uses: actions/checkout@v4
	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Cache conda
	uses: actions/cache@v4
	env:
	# Increase this value to reset cache.
	CACHE_NUMBER: 0
	with:
	path: ~/conda_pkgs_dir
	key:
	${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}

	- name: Setup Conda Environment
	uses: conda-incubator/setup-miniconda@v3
	with:
	miniconda-version: latest
	activate-environment: test
	show-channel-urls: true
	use-only-tar-bz2: true

	- run:
	conda info

	- name: Build
	run: \|
	conda install --yes numpy cython mpi4py nose setuptools openmpi gcc
	python setup.py install
	- name: Unit tests
	run: \|
	pip install runtests
	python ./runtests.py --mpirun="mpirun -np 4"
	mpirun -n 1 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 1 1 -Nmesh 13 15 16
	mpirun -n 2 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 2 1 -Nproc 1 2 -Nmesh 13 15 16
	mpirun -n 4 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 2 2 -Nmesh 13 15 16
	mpirun -n 4 python $PWD/scripts/pfft-roundtrip-matrix.py -v -diag -Nproc 2 2 -Nmesh 13 15
	bash check_tag.sh pfft/version.py

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