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CI: Add native ppc64le CI job using GitHub Actions #29212

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Add native ppc64le CI job using GitHub Actions
sandeepgupta12 Jun 16, 2025
8a537e1
Address review comments: clarify fork behavior, clean up spin install…
sandeepgupta12 Jun 17, 2025
835efe4
Merge branch 'numpy:main' into ppc64le-support
sandeepgupta12 Sep 3, 2025
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55 changes: 55 additions & 0 deletions .github/workflows/linux-ppc64le.yml
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name: Native ppc64le Linux Test

on:
pull_request:
branches:
- main
- maintenance/**
workflow_dispatch:

permissions:
contents: read

concurrency:
group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
cancel-in-progress: true

jobs:
native_ppc64le:
# This job runs only in the main NumPy repository.
# It requires a native ppc64le GHA runner, which is not available on forks.
# For more details, see: https://github.com/numpy/numpy/issues/29125
if: github.repository == 'numpy/numpy'
runs-on: ubuntu-24.04-ppc64le

name: "Native PPC64LE"
steps:

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Nit: can you remove this blank line?

- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
with:
submodules: recursive
fetch-tags: true
persist-credentials: false

- name: Install dependencies
run: |
sudo apt update
sudo apt install -y python3 python3-pip python3-dev ninja-build gfortran \
build-essential libopenblas-dev liblapack-dev pkg-config
pip install --upgrade pip
pip install -r requirements/build_requirements.txt
pip install pytest pytest-xdist hypothesis typing_extensions pytest-timeout spin
echo "/home/runner/.local/bin" >> $GITHUB_PATH
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Why is this needed?

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used to add ~/.local/bin to the system PATH for subsequent steps in the GitHub Actions workflow, so that installed tools (like spin) can be found and executed.

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Ah okay. That should be happening only if pip can't write to its default location and switches to .local. The usual solution to that is to use a virtual environment.

Fine to leave this as is until the self-hosted runner is up, so we have a log to look at for the final tweaks.


- name: Meson Build
run: |
spin build --clean -- -Dallow-noblas=false
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Can you remove --clean? It's unnecessary in CI, the build and build-install directories will not exist for a clean checkout.


- name: Meson Log
if: always()
run: cat build/meson-logs/meson-log.txt

- name: Run Tests
run: |
export F90=$(which gfortran)
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This isn't doing anything, please remove.

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Updated as suggested, thanks!

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Unresolved this comment, since it wasn't actually addressed.

spin test -- --timeout=60 --durations=10
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