cpp-build-test.yml

# SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
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name: C++ Build & Test

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: cpp-build-test-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build-and-test:
    name: Build & Test
    runs-on: colossus
    container:
      image: nvcr.io/nvidia/cuda:12.6.3-devel-ubuntu22.04
      options: --gpus all
    timeout-minutes: 90

    steps:
      - name: Verify GPU access
        shell: bash
        run: |
          set -xeuo pipefail
          nvidia-smi

      - name: Check out source tree
        uses: actions/checkout@v4

      - name: Install dependencies
        shell: bash
        run: bash admin/ci/setup_dependencies.sh 3.12 2025.03.6

      - name: Configure
        shell: bash
        env:
          CUDA_HOME: /usr/local/cuda
        run: |
          set -xeo pipefail
          . /usr/local/anaconda/etc/profile.d/conda.sh && conda activate base
          export LD_LIBRARY_PATH="/usr/local/cuda/lib64${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
          cmake -S . -B build \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_CUDA_COMPILER=/usr/local/cuda/bin/nvcc \
            -DNVMOLKIT_EXTRA_DEV_FLAGS=OFF \
            -DNVMOLKIT_BUILD_BENCHMARKS=ON \
            -DNVMOLKIT_BUILD_PYTHON_BINDINGS=ON \
            -DNVMOLKIT_BUILD_TESTS=ON \
            -DNVMOLKIT_CUDA_TARGET_MODE=native

      - name: Build
        shell: bash
        run: |
          set -xeo pipefail
          . /usr/local/anaconda/etc/profile.d/conda.sh && conda activate base
          cmake --build build --parallel $(nproc)

      - name: Test
        shell: bash
        run: |
          set -xeo pipefail
          . /usr/local/anaconda/etc/profile.d/conda.sh && conda activate base
          ctest --test-dir build --output-on-failure