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python-package.yml
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name: Python package
on:
push: {}
pull_request:
branches: [ main ]
paths:
- '.github/workflows/python-package.yml'
- 'bitsandbytes/**'
- 'csrc/**'
- 'include/**'
- 'tests/**'
- 'CMakeLists.txt'
- 'requirements*.txt'
- 'setup.py'
- 'pyproject.toml'
- 'pytest.ini'
release:
types: [ published ]
concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
jobs:
##
# This job matrix builds the non-CUDA versions of the libraries for all supported platforms.
##
build-shared-libs:
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
arch: [x86_64, aarch64]
exclude:
- os: windows-latest # This probably requires arm64 Windows agents
arch: aarch64
runs-on: ${{ matrix.os }} # One day, we could run them on native agents. Azure supports this now but it's planned only for Q3 2023 for hosted agents
steps:
# Check out code
- uses: actions/checkout@v4
# On Linux we use CMake within Docker
- name: Setup cmake
uses: jwlawson/[email protected]
with:
cmake-version: '3.26.x'
- name: Setup MSVC
if: startsWith(matrix.os, 'windows')
#uses: microsoft/[email protected] # to use msbuild
uses: ilammy/[email protected] # to use cl
# Compile C++ code
- name: Build C++
shell: bash
run: |
set -ex
build_os=${{ matrix.os }}
build_arch=${{ matrix.arch }}
if [ ${build_os:0:6} == ubuntu -a ${build_arch} == aarch64 ]; then
# Allow cross-compile on aarch64
sudo apt-get update
sudo apt-get install -y gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu g++-aarch64-linux-gnu
cmake -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++ -DCOMPUTE_BACKEND=cpu .
elif [ ${build_os:0:5} == macos -a ${build_arch} == aarch64 ]; then
cmake -DCMAKE_OSX_ARCHITECTURES=arm64 -DCOMPUTE_BACKEND=cpu .
else
cmake -DCOMPUTE_BACKEND=cpu .
fi
cmake --build . --config Release
mkdir -p output/${{ matrix.os }}/${{ matrix.arch }}
( shopt -s nullglob && cp bitsandbytes/*.{so,dylib,dll} output/${{ matrix.os }}/${{ matrix.arch }}/ )
- name: Upload build artifact
uses: actions/upload-artifact@v4
with:
name: shared_library_${{ matrix.os }}_${{ matrix.arch }}
path: output/*
retention-days: 7
##
# This job matrix builds the CUDA versions of the libraries for platforms that support CUDA (Linux x64/aarch64 + Windows x64)
##
build-shared-libs-cuda:
strategy:
matrix:
os: [ubuntu-latest, windows-latest]
arch: [x86_64, aarch64]
cuda_version: ['12.1.0']
exclude:
- os: windows-latest # This probably requires arm64 Windows agents
arch: aarch64
runs-on: ${{ matrix.os }} # One day, we could run them on native agents. Azure supports this now but it's planned only for Q3 2023 for hosted agents
steps:
# Check out code
- uses: actions/checkout@v4
# Linux: We use Docker to build cross platform Cuda (aarch64 is built in emulation)
- name: Set up Docker multiarch
if: startsWith(matrix.os, 'ubuntu')
uses: docker/setup-qemu-action@v2
# On Linux we use CMake within Docker
- name: Setup cmake
if: ${{ !startsWith(matrix.os, 'linux') }}
uses: jwlawson/[email protected]
with:
cmake-version: '3.26.x'
# Windows: We install Cuda on the agent (slow)
- uses: Jimver/[email protected]
if: startsWith(matrix.os, 'windows')
id: cuda-toolkit
with:
cuda: ${{ matrix.cuda_version }}
method: 'network'
sub-packages: '["nvcc","cudart","cusparse","cublas","thrust","nvrtc_dev","cublas_dev","cusparse_dev"]'
linux-local-args: '["--toolkit"]'
use-github-cache: false
- name: Setup MSVC
if: startsWith(matrix.os, 'windows')
#uses: microsoft/[email protected] # to use msbuild
uses: ilammy/[email protected] # to use cl
# Compile C++ code
- name: Build C++
shell: bash
run: |
set -ex
build_os=${{ matrix.os }}
build_arch=${{ matrix.arch }}
[[ "${{ matrix.os }}" = windows-* ]] && python3 -m pip install ninja
for NO_CUBLASLT in ON OFF; do
if [ ${build_os:0:6} == ubuntu ]; then
image=nvidia/cuda:${{ matrix.cuda_version }}-devel-ubuntu22.04
echo "Using image $image"
docker run --platform linux/$build_arch -i -w /src -v $PWD:/src $image sh -c \
"apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends cmake \
&& cmake -DCOMPUTE_BACKEND=cuda -DCOMPUTE_CAPABILITY=\"50;52;60;61;70;75;80;86;89;90\" -DNO_CUBLASLT=${NO_CUBLASLT} . \
&& cmake --build ."
else
cmake -G Ninja -DCOMPUTE_BACKEND=cuda -DNO_CUBLASLT=${NO_CUBLASLT} -DCMAKE_BUILD_TYPE=Release -S .
cmake --build . --config Release
fi
done
mkdir -p output/${{ matrix.os }}/${{ matrix.arch }}
( shopt -s nullglob && cp bitsandbytes/*.{so,dylib,dll} output/${{ matrix.os }}/${{ matrix.arch }}/ )
- name: Upload build artifact
uses: actions/upload-artifact@v4
with:
name: shared_library_cuda_${{ matrix.os }}_${{ matrix.arch }}_${{ matrix.cuda_version }}
path: output/*
retention-days: 7
build-wheels:
needs:
- build-shared-libs
- build-shared-libs-cuda
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
python-version: ["3.9", "3.10", "3.11", "3.12"]
arch: [x86_64, aarch64]
exclude:
- os: windows-latest # This probably requires arm64 Windows agents
arch: aarch64
runs-on: ${{ matrix.os }}
steps:
# Check out code
- uses: actions/checkout@v4
# Download shared libraries
- name: Download build artifact
uses: actions/download-artifact@v4
with:
merge-multiple: true
pattern: "shared_library*_${{ matrix.os }}_${{ matrix.arch }}*"
path: output/
- name: Copy correct platform shared library
shell: bash
run: |
ls -lR output/
cp output/${{ matrix.os }}/${{ matrix.arch }}/* bitsandbytes/
# Set up the Python version needed
- name: Set up Python ${{ matrix.python-version }}
uses: actions/setup-python@v5
with:
python-version: ${{ matrix.python-version }}
cache: pip
- name: Install build package
shell: bash
run: pip install build
# TODO: How to run CUDA tests on GitHub actions?
#- name: Run unit tests
# if: ${{ matrix.arch == 'x86_64' }} # Tests are too slow to run in emulation. Wait for real aarch64 agents
# run: |
# PYTHONPATH=. pytest --log-cli-level=DEBUG tests
- name: Build wheel
shell: bash
run: python -m build .
- name: Upload build artifact
uses: actions/upload-artifact@v4
with:
name: bdist_wheel_${{ matrix.os }}_${{ matrix.arch }}_${{ matrix.python-version }}
path: dist/bitsandbytes-*.whl
retention-days: 7
publish:
needs: build-wheels
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Download build artifact
uses: actions/download-artifact@v4
with:
path: dist/
merge-multiple: true
pattern: "bdist_wheel_*"
- run: |
ls -lR dist/
- name: Publish to PyPi
if: startsWith(github.ref, 'refs/tags')
uses: pypa/gh-action-pypi-publish@release/v1
with:
password: ${{ secrets.pypi }}