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Merged
SwayamInSync merged 6 commits into from
Jan 21, 2026
Merged

CI: Adding CI to test old CPU for SIMD compatibility via SDE Emulation #59

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34e56a2
test the workflow
SwayamInSync Jan 20, 2026
703c956
adding mpmath dependecy
SwayamInSync Jan 20, 2026
4ba87d3
rename
SwayamInSync Jan 21, 2026
9b9a264
trying strategy
SwayamInSync Jan 21, 2026
2b5841c
Merge branch 'main' into old-cpu
SwayamInSync Jan 21, 2026
239d11d
use fail-fast
SwayamInSync Jan 21, 2026
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119 changes: 119 additions & 0 deletions .github/workflows/test_old_cpu.yml
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name: Test on Older CPUs (x86-64-v2)

# This workflow tests numpy-quaddtype on older x86 CPUs using Intel SDE.
# It ensures compatibility with x86-64-v2 baseline CPUs (e.g., Sandy Bridge)
# that don't have AVX2/FMA support.

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

jobs:
test_sandy_bridge:

@ngoldbaum ngoldbaum Jan 21, 2026

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Only if you care to mess with it: I bet you can make a build matrix like:

strategy:
    matrix:
        build-arch: [
            ['sandy_bridge', 'Sandy Bridge (x86_64-v2)'], 
            ['haswell', 'Haswell (x86_64-v3)'],
        ]

And then reduce the definition to use only one job definition and rely on the build matrix to generate the two almost-identical jobs.

name: Test on Sandy Bridge (x86-64-v2)
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v6
with:
submodules: recursive

- name: Set up Python
uses: actions/setup-python@v6
with:
python-version: "3.12"

- name: Install Intel SDE
run: |
curl -o /tmp/sde.tar.xz https://downloadmirror.intel.com/859732/sde-external-9.58.0-2025-06-16-lin.tar.xz
mkdir /tmp/sde && tar -xvf /tmp/sde.tar.xz -C /tmp/sde/
sudo mv /tmp/sde/* /opt/sde && sudo ln -s /opt/sde/sde64 /usr/bin/sde

- name: Install system dependencies
run: |
sudo apt-get update -y
sudo apt-get install -y cmake gcc g++ make git pkg-config

- name: Install Python dependencies
run: |
pip install -U pip
pip install numpy meson meson-python ninja pytest

- name: Build numpy-quaddtype
env:
LDFLAGS: "-fopenmp"
run: |
pip install . --no-build-isolation -v

- name: Test import on Sandy Bridge (x86-64-v2)
run: |
echo "Testing basic import on Sandy Bridge..."
sde -snb -- python -c "
import numpy as np
print('NumPy version:', np.__version__)
from numpy_quaddtype import QuadPrecDType
print('QuadPrecDType imported successfully!')
arr = np.zeros(3, dtype=QuadPrecDType())
print('Created quad array:', arr)
print('SUCCESS: No illegal instruction on Sandy Bridge!')
"

- name: Run tests on Sandy Bridge
run: |
pip install pytest mpmath
sde -snb -- python -m pytest tests/ -v --tb=short

test_haswell:
name: Test on Haswell (x86-64-v3)
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v6
with:
submodules: recursive

- name: Set up Python
uses: actions/setup-python@v6
with:
python-version: "3.12"

- name: Install Intel SDE
run: |
curl -o /tmp/sde.tar.xz https://downloadmirror.intel.com/859732/sde-external-9.58.0-2025-06-16-lin.tar.xz
mkdir /tmp/sde && tar -xvf /tmp/sde.tar.xz -C /tmp/sde/
sudo mv /tmp/sde/* /opt/sde && sudo ln -s /opt/sde/sde64 /usr/bin/sde

- name: Install system dependencies
run: |
sudo apt-get update -y
sudo apt-get install -y cmake gcc g++ make git pkg-config

- name: Install Python dependencies
run: |
pip install -U pip
pip install numpy meson meson-python ninja pytest

- name: Build numpy-quaddtype
env:
LDFLAGS: "-fopenmp"
run: |
pip install . --no-build-isolation -v

- name: Test import on Haswell (x86-64-v3)

@ngoldbaum ngoldbaum Jan 21, 2026

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typo, it's x86_64 with an underscore.

run: |
echo "Testing basic import on Haswell..."
sde -hsw -- python -c "
import numpy as np
print('NumPy version:', np.__version__)
from numpy_quaddtype import QuadPrecDType
print('QuadPrecDType imported successfully!')
arr = np.zeros(3, dtype=QuadPrecDType())
print('Created quad array:', arr)
print('SUCCESS: Works on Haswell!')
"

- name: Run tests on Haswell
run: |
pip install pytest mpmath
sde -hsw -- python -m pytest tests/ -v --tb=short
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