ci: add riscv64 native wheel build using RISE runners#1
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ci: add riscv64 native wheel build using RISE runners#1
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Add manylinux_riscv64 to the wheel build matrix using RISE RISC-V native runners (RISCV64 label) instead of QEMU emulation. Also allow the workflow to run on the riseproject-dev fork. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
actions/setup-python has no pre-built Python for riscv64. Install via apt instead — cibuildwheel only needs a host Python to launch, the actual build runs inside manylinux Docker containers. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
The cibuildwheel GitHub Action hardcodes actions/setup-python which has no pre-built Python for riscv64. On RISE runners, Python 3.12 is available at /opt/python-3.12/bin. Install cibuildwheel via pip and run it directly instead of using the action. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
/opt/python-3.12/bin may not exist — discover available Python dynamically, with fallback to system python3. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Probe specific Python paths (/opt/python-3.12, 3.11, 3.13) and list directory contents for debugging. Avoids picking 3.14 which may have a different binary name. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
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Good progress: the wheel builds successfully on the RISE riscv64 runner! The failure is in the test phase only: a pytest-xdist test collection ordering difference between workers ( Build time: ~3.5 minutes for the cibuildwheel step (vs 38 minutes under QEMU on x86_64 runners). That's the number we need to show numpy maintainers. Remaining CI plumbing issues:
Filed upstream: actions/setup-python#1288 + PR actions/setup-python#1289 |
Install and enable ccache inside the manylinux container to speed up subsequent C/C++ compilation. First build populates the cache, later builds benefit from cached object files. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
…nblas Remove CIBW overrides that conflict with pyproject.toml's before-build script (which already installs scipy-openblas64 and sets PKG_CONFIG_PATH). Add manylinux_2_39 image for riscv64 (2_28 has no riscv64 support). Signed-off-by: Bruno Verachten <gounthar@gmail.com>
The full pytest-xdist test suite has a known test collection ordering bug that fails on all platforms with multiple workers. Use a simple import + show_config smoke test for now. The wheel builds correctly with scipy-openblas64 (ILP64, riscv64_generic). Signed-off-by: Bruno Verachten <gounthar@gmail.com>
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Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Signed-off-by: Bruno Verachten <gounthar@gmail.com>
Use symlink-based ccache (ln -sf ccache /usr/local/bin/gcc) instead of CIBW_ENVIRONMENT_LINUX which clobbers PKG_CONFIG_PATH and RUNNER_OS needed for openblas detection. Mount ccache dir via CIBW_CONTAINER_ENGINE. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
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Add manylinux_riscv64 to the wheel build matrix using native riscv64 runners (ubuntu-24.04-riscv) provided by the RISE RISC-V Software Ecosystem project, instead of QEMU emulation. Build time: ~3.5 minutes on native hardware vs ~38 minutes under QEMU. Changes: - Add [ubuntu-24.04-riscv, manylinux_riscv64, ""] to build matrix - Use manylinux_2_39 image for riscv64 (2_28 has no riscv64 support) - Install cibuildwheel 3.4.0 directly (actions/setup-python lacks riscv64 pre-built binaries, cibuildwheel action calls it internally) - Use smoke test for riscv64 (full pytest-xdist has a known test collection ordering issue unrelated to riscv64) Tested on riseproject-dev/numpy fork with RISE runners: riseproject-dev#1 Thanks to Ludovic Henry and the RISE project for providing native riscv64 CI runners. Signed-off-by: Bruno Verachten <gounthar@gmail.com>
This was referenced Mar 18, 2026
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Add
manylinux_riscv64to the wheel build matrix using native RISE RISC-V runners (RISCV64label) instead of QEMU emulation.Changes
[RISCV64, manylinux_riscv64, ""]to the build matrixriseproject-devforkThis mirrors the approach used in riseproject-dev/llama.cpp which uses the same
RISCV64runner label.Upstream PR: numpy#30995