Github action: add CI for using OpenMPI

Author: wkliao

.github/workflows/openmpi.yml

@@ -0,0 +1,116 @@
+name: Using OpenMPI
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**/*.md'
+      - '**/*.txt'
+  pull_request:
+    branches:
+      - main
+    paths-ignore:
+      - '**/*.md'
+      - '**/*.txt'
+
+jobs:
+  build-linux:
+    name: Python (${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    env:
+      OPENMPI_VERSION: 5.0.7
+      OPENMPI_DIR: ${{ github.workspace }}/ompi-install
+      PNETCDF_VERSION: 1.14.0
+      PNETCDF_DIR: ${{ github.workspace }}/PnetCDF-install
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+    steps:
+
+    - uses: actions/checkout@v4
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install Ubuntu Dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install m4
+
+    - name: Build OPENMPI
+      run: |
+        echo "Install OpenMPI ${OPENMPI_VERSION} in $OPENMPI_DIR"
+        VER_MAJOR=${OPENMPI_VERSION%.*}
+        rm -rf OPENMPI ; mkdir OPENMPI ; cd OPENMPI
+        wget -q https://download.open-mpi.org/release/open-mpi/v${VER_MAJOR}/openmpi-${OPENMPI_VERSION}.tar.gz
+        gzip -dc openmpi-${OPENMPI_VERSION}.tar.gz | tar -xf -
+        cd openmpi-${OPENMPI_VERSION}
+        ./configure --prefix=$OPENMPI_DIR \
+                    --with-io-romio-flags="--with-file-system=ufs" \
+                    --with-hwloc=internal \
+                    --with-pmix=internal \
+                    --with-libevent=internal \
+                    --disable-mpi-fortran \
+                    CC=gcc
+        make -s LIBTOOLFLAGS=--silent V=1 -j 4 install > qout 2>&1
+        make -s -j 4 distclean >> qout 2>&1
+
+    - name: Build PnetCDF-C official release
+      run: |
+        echo "Download and build PnetCDF-C release version ${PNETCDF_VERSION}"
+        wget -q https://parallel-netcdf.github.io/Release/pnetcdf-${PNETCDF_VERSION}.tar.gz
+        tar -xzf pnetcdf-${PNETCDF_VERSION}.tar.gz
+        pushd pnetcdf-${PNETCDF_VERSION}
+        ./configure --prefix=$PNETCDF_DIR \
+                    --silent \
+                    --enable-shared \
+                    --enable-debug \
+                    --disable-fortran \
+                    --disable-cxx \
+                    --with-mpi=$OPENMPI_DIR
+        make -s LIBTOOLFLAGS=--silent V=1 -j 4 install > qout 2>&1
+        make -s -j 4 distclean >> qout 2>&1
+        popd
+
+    - name: Install python dependencies via pip
+      run: |
+        python -m pip install --upgrade pip setuptools wheel
+        pip install numpy cython cftime pytest twine check-manifest
+        export MPICC=$OPENMPI_DIR/bin/mpicc
+        pip install mpi4py
+        pip install torch torchvision
+
+    - name: Install PnetCDF-Python
+      run: |
+        export CC=$OPENMPI_DIR/bin/mpicc
+        pip install --verbose --no-build-isolation -e .
+
+    - name: Test PnetCDF-Python
+      run: |
+        export PATH=${OPENMPI_DIR}/bin:${PATH}
+        make ptests TESTMPIRUN="${OPENMPI_DIR}/bin/mpiexec --oversubscribe"
+
+    - name: Re-install PnetCDF-Python from source distribution
+      run: |
+        pip uninstall -y pnetcdf
+        make install-clean
+        export CC=$OPENMPI_DIR/bin/mpicc
+        python setup.py sdist
+        pip install --verbose dist/pnetcdf-*.tar.gz
+
+    - name: Test PnetCDF-Python
+      run: |
+        export PATH=${OPENMPI_DIR}/bin:${PATH}
+        make ptests TESTMPIRUN="${OPENMPI_DIR}/bin/mpiexec --oversubscribe"
+
+#   - name: Tarball
+#     run: |
+#       export PATH=${NETCDF_DIR}/bin:${PATH}
+#       python setup.py --version
+#       check-manifest --version
+#       check-manifest --verbose
+#       pip wheel . -w dist --no-deps
+#       twine check dist/*