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flash-attention-prebuild-wh…/.github/workflows/build_windows.yml
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2025-08-15 01:25:28 +09:00

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YAML

# #########################################################
# Build wheels with GitHub hosted runner on Windows x86_64
# #########################################################
name: "[Windows x86_64] Build wheels and upload to GitHub Releases"
on:
workflow_call:
inputs:
flash-attn-version:
description: "Flash-Attention version"
required: true
type: string
python-version:
description: "Python version"
required: true
type: string
torch-version:
description: "PyTorch version"
required: true
type: string
cuda-version:
description: "CUDA version"
required: true
type: string
jobs:
build_windows_wheels:
name: Build wheels and Upload (Windows x86_64, GitHub hosted runner, ${{ inputs.flash-attn-version }}, ${{ inputs.python-version }}, ${{ inputs.torch-version }}, ${{ inputs.cuda-version }})
runs-on: windows-2022
steps:
- uses: actions/checkout@v4
- name: Enable Git long paths
shell: pwsh
run: git config --system core.longpaths true
- uses: actions/setup-python@v5
with:
python-version: ${{ inputs.python-version }}
- uses: Jimver/cuda-toolkit@v0.2.24
with:
cuda: ${{ inputs.cuda-version }}
method: "network"
use-github-cache: false
use-local-cache: false
- name: Install Visual Studio BuildTools (C++/CMake + Windows SDK)
shell: pwsh
run: |
choco upgrade -y visualstudio2022buildtools `
--params "--add Microsoft.VisualStudio.Component.VC.Tools.x86.x64 `
--add Microsoft.VisualStudio.Component.VC.CMake.Project `
--add Microsoft.VisualStudio.Component.Windows11SDK.22621 `
--includeRecommended --includeOptional"
- name: Setup MSVC Developer Command Prompt
uses: TheMrMilchmann/setup-msvc-dev@v3
with:
arch: x64
- name: Add msbuild to PATH
uses: microsoft/setup-msbuild@v2
- name: Install build dependencies
shell: pwsh
run: |
python -m pip install -U setuptools==75.8.0 wheel packaging psutil ninja
- name: Build wheels
shell: pwsh
env:
MAX_JOBS: 2
NVCC_THREADS: 2
run: |
$env:MAX_JOBS = "${{ env.MAX_JOBS }}"
$env:NVCC_THREADS = "${{ env.NVCC_THREADS }}"
$env:FLASH_ATTENTION_FORCE_BUILD = "TRUE"
$env:NVCC_FLAGS = "-w --disable-warnings"
$env:CXXFLAGS = "/w"
$env:CFLAGS = "/w"
.\build_windows.ps1 -FlashAttnVersion "${{ inputs.flash-attn-version }}" -PythonVersion "${{ inputs.python-version }}" -TorchVersion "${{ inputs.torch-version }}" -CudaVersion "${{ inputs.cuda-version }}"
$wheelName = Get-ChildItem -Path "flash-attention\dist\*.whl" | Select-Object -First 1 | ForEach-Object { $_.Name }
echo "wheel_name=$wheelName" >> $env:GITHUB_ENV
- name: Install Test
shell: pwsh
run: |
pip install --no-cache-dir flash-attention/dist/$env:wheel_name
python -c "import flash_attn; print(flash_attn.__version__)"
- name: Upload Release Asset
shell: pwsh
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
$tag_name = "${env:GITHUB_REF}".Replace("refs/tags/", "")
$wheel_path = "flash-attention/dist/$env:wheel_name"
# Check if the file exists
if (-not (Test-Path $wheel_path)) {
$tag_name = "${env:GITHUB_REF}".Replace("refs/tags/", "")
$wheel_path = "flash-attention/dist/$env:wheel_name"
# Check if the file exists
if (-not (Test-Path $wheel_path)) {
Write-Host "Error: Wheel file not found at $wheel_path"
exit 1
}
# Upload the release asset using GitHub CLI
gh release upload "$tag_name" "$wheel_path" --clobber