main-x86_64.yml

name: Build cuOpt link for GAMS (x86_64)

on:
  push:
#    branches: [main]
    tags:
      - '*'        # Run only when a new tag is pushed
  pull_request:
  workflow_dispatch:

jobs:
  build-link:
    runs-on: ubuntu-latest
    container:
      image: python:3.12

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Install dependencies
        run: |
          apt-get update && apt-get install -y patchelf curl unzip zip gcc

      # Get CUDA runtimes via pip
      - name: Set up python virtual environments with NVIDIA dependencies for CUDA 12 and CUDA 13 (respectively)
        run: |
          mkdir -p venvs
          python -m venv venvs/cu12
          bash -c "source venvs/cu12/bin/activate && \
            pip install --upgrade pip -qq && \
            pip install --timeout=150 --extra-index-url=https://pypi.nvidia.com 'cuopt-cu12==26.6.*' -qq &&
            deactivate"
          python -m venv venvs/cu13
          bash -c "source venvs/cu13/bin/activate && \
            pip install --upgrade pip -qq && \
            pip install --timeout=150 --extra-index-url=https://pypi.nvidia.com 'cuopt-cu13==26.6.*' -qq &&
            deactivate"

      # Get GAMS
      - name: Download and extract latest GAMS distribution
        run: |
          curl https://d37drm4t2jghv5.cloudfront.net/distributions/latest/linux/linux_x64_64_sfx.exe --output linux_x64_64_sfx.exe
          unzip -q linux_x64_64_sfx.exe
          mv gams*_linux_x64_64_sfx gamsdist
          rm linux_x64_64_sfx.exe

      # Build link
      - name: Compile GAMS/cuOpt-link binary "gmscuopt.out" for CUDA 12 and then for CUDA 13
        run: |
          export GAMSCAPI="gamsdist/apifiles/C/api"
          export CUOPT="venvs/cu12/lib/python3.12/site-packages/libcuopt"
          export JITLINK="venvs/cu12/lib/python3.12/site-packages/nvidia/nvjitlink/lib"
          export CUOPT_VERSION="`cat "$CUOPT/VERSION"`"
          export CUOPT_HASH="`cat "$CUOPT/GIT_COMMIT"`"
          gcc -Wall gmscuopt.c -o gmscuopt-cu12.out \
            -DCUOPT_VERSION=\"$CUOPT_VERSION\" -DCUOPT_HASH=\"$CUOPT_HASH\" \
            -I $GAMSCAPI $GAMSCAPI/gmomcc.c $GAMSCAPI/optcc.c $GAMSCAPI/gevmcc.c \
            -I $CUOPT/include $JITLINK/libnvJitLink.so.12 -L $CUOPT/lib64 -lcuopt
          patchelf --set-rpath \$ORIGIN gmscuopt-cu12.out
          export CUOPT="venvs/cu13/lib/python3.12/site-packages/libcuopt"
          export JITLINK="venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib"
          export CUOPT_VERSION="`cat "$CUOPT/VERSION"`"
          export CUOPT_HASH="`cat "$CUOPT/GIT_COMMIT"`"
          gcc -Wall gmscuopt.c -o gmscuopt-cu13.out \
            -DCUOPT_VERSION=\"$CUOPT_VERSION\" -DCUOPT_HASH=\"$CUOPT_HASH\" \
            -I $GAMSCAPI $GAMSCAPI/gmomcc.c $GAMSCAPI/optcc.c $GAMSCAPI/gevmcc.c \
            -I $CUOPT/include $JITLINK/libnvJitLink.so.13 -L $CUOPT/lib64 -lcuopt
          patchelf --set-rpath \$ORIGIN gmscuopt-cu13.out

      # Collect dependencies for link and runtime convenience archive
      - name: Prepare release artifact and runtime bundle
        run: |
          mkdir release-cu12
          cp gmscuopt-cu12.out release-cu12/gmscuopt.out
          cp assets/* release-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/libcuopt/lib64/libcuopt.so release-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/libcuopt_cu12.libs/libgomp-*.so.1.0.0 release-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/libcuopt_cu12.libs/libtbb-*.so.2 release-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/libcuopt_cu12.libs/libtbbmalloc-*.so.2 release-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/rapids_logger/lib64/librapids_logger.so release-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/librmm/lib64/librmm.so release-cu12/
          mkdir runtime-cu12
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/cu12/lib/libcudss.so.0 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/cu12/lib/libcudss_mtlayer_gomp.so.0 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/cusolver/lib/libcusolver.so.11 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/cublas/lib/libcublas.so.12 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/cublas/lib/libcublasLt.so.12 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/nvjitlink/lib/libnvJitLink.so.12 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/curand/lib/libcurand.so.10 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/nvidia/cusparse/lib/libcusparse.so.12 runtime-cu12/
          cp venvs/cu12/lib/python3.12/site-packages/libcuopt_cu12.libs/libcares-*.so.2.2.0 runtime-cu12/
          mkdir release-cu13
          cp gmscuopt-cu13.out release-cu13/gmscuopt.out
          cp assets/* release-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/libcuopt/lib64/libcuopt.so release-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/libcuopt_cu13.libs/libgomp-*.so.1.0.0 release-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/libcuopt_cu13.libs/libtbb-*.so.2 release-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/libcuopt_cu13.libs/libtbbmalloc-*.so.2 release-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/rapids_logger/lib64/librapids_logger.so release-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/librmm/lib64/librmm.so release-cu13/
          mkdir runtime-cu13
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcudss.so.0 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcudss_mtlayer_gomp.so.0 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libnvJitLink.so.13 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcublas.so.13 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcublasLt.so.13 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcurand.so.10 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcusolver.so.12 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/nvidia/cu13/lib/libcusparse.so.12 runtime-cu13/
          cp venvs/cu13/lib/python3.12/site-packages/libcuopt_cu13.libs/libcares-*.so.2.2.0 runtime-cu13/

      # Upload artifacts
      - name: Upload CUDA 12 link artifact to GitHub Actions (always)
        uses: actions/upload-artifact@v6
        with:
          name: cuopt-link-cu12
          path: release-cu12/

      - name: Upload CUDA 12 runtime artifact to GitHub Actions (always)
        uses: actions/upload-artifact@v6
        with:
          name: cu12-runtime
          path: runtime-cu12/

      - name: Upload CUDA 13 link artifact to GitHub Actions (always)
        uses: actions/upload-artifact@v6
        with:
          name: cuopt-link-cu13
          path: release-cu13/

      - name: Upload CUDA 13 runtime artifact to GitHub Actions (always)
        uses: actions/upload-artifact@v6
        with:
          name: cu13-runtime
          path: runtime-cu13/

      # Bundle into archives
      - name: Create zip archive (only on tag push)
        if: startsWith(github.ref, 'refs/tags/')
        run: |
          cd release-cu12
          zip -r ../cuopt-link-release-cu12-x86_64.zip .
          cd ../runtime-cu12
          zip -r ../cu12-runtime-x86_64.zip .
          cd ../release-cu13
          zip -r ../cuopt-link-release-cu13-x86_64.zip .
          cd ../runtime-cu13
          zip -r ../cu13-runtime-x86_64.zip .

      # Create new release with archives
      - name: Create GitHub Release (only on tag push)
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v2
        with:
          files: |
            cuopt-link-release-cu12-x86_64.zip
            cu12-runtime-x86_64.zip
            cuopt-link-release-cu13-x86_64.zip
            cu13-runtime-x86_64.zip
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}