ompi_mpi4py.yaml

name: GitHub Action CI

on: [pull_request]

jobs:
  mpi4py:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
    - name: Configure hostname
      run:  echo 127.0.0.1 `hostname` | sudo tee -a /etc/hosts > /dev/null
      if:   ${{ runner.os == 'Linux' || runner.os == 'macOS' }}
        
    - name: Install depencencies
      run:  sudo apt-get install -y -q
              libnuma-dev
      
    - name: Checkout Open MPI
      uses: actions/checkout@v4
      with:
       path: mpi-build
       submodules: recursive

    - name: Bootstrap Open MPI
      run:  ./autogen.pl
      working-directory: mpi-build

    - name: Configure Open MPI
      run: ./configure
              --disable-dependency-tracking
              --disable-sphinx
              --disable-man-pages
              --disable-mpi-fortran
              --disable-oshmem
              --enable-debug
              --enable-mem-debug
              LDFLAGS=-Wl,-rpath,/usr/local/lib
      working-directory: mpi-build

    - name: Build MPI
      run:  make -j 2
      working-directory: mpi-build

    - name: Install MPI
      run:  sudo make install
      working-directory: mpi-build

    - name: Tweak MPI
      run:  |
        # Tweak MPI
        mca_params="$HOME/.openmpi/mca-params.conf"
        mkdir -p "$(dirname "$mca_params")"
        echo mpi_param_check = true >> "$mca_params"
        echo mpi_show_handle_leaks = true >> "$mca_params"
        echo rmaps_base_oversubscribe = true >> "$mca_params"
        mca_params="$HOME/.prte/mca-params.conf"
        mkdir -p "$(dirname "$mca_params")"
        echo rmaps_default_mapping_policy = :oversubscribe >> "$mca_params"

    - name: Show MPI
      run:  ompi_info

    - name: Show MPICC
      run:  mpicc -show

    - name: Use Python
      uses: actions/setup-python@v5
      with:
        python-version: 3
        architecture: x64

    - name: Install Python packages (build)
      run:  python -m pip install --upgrade
              setuptools pip wheel

    - name: Install Python packages (test)
      run:  python -m pip install --upgrade
              numpy cffi pyyaml

    - name: Checkout mpi4py
      uses: actions/checkout@v4
      with:
        repository: "mpi4py/mpi4py"

    - name: Install mpi4py
      run:  python -m pip install .
      env:
        CFLAGS: "-O0"

    - name: Test mpi4py (singleton)
      run:  python test/main.py -v
      if:   ${{ true }}
    - name: Test mpi4py (np=1)
      run:  mpiexec -n 1 python test/main.py -v
#
#   unfortunately these multi-rank tests aren't reliable enough to
#   run in github actions right now.  
#
#   - name: Test mpi4py (np=2)
#     run:  mpiexec -n 2 python test/main.py -v -f
#   - name: Test mpi4py (np=3)
#     run:  mpiexec -n 3 python test/main.py -v -f
#     if:   ${{ true }}
#     timeout-minutes: 20
#   - name: Test mpi4py (np=4)
#     run:  mpiexec -n 4 python test/main.py -v -f
#     if:   ${{ true }}
#     timeout-minutes: 20
#   - name: Test mpi4py (np=5)
#     run:  mpiexec -n 5 python test/main.py -v -f
#     if:   ${{ true }}
#     timeout-minutes: 20
    - name: Test mpi4py.run
      run:  python demo/test-run/test_run.py -v
      if:   ${{ true }}
      timeout-minutes: 20