ci: add GitHub Actions workflow (Linux x86_64 + aarch64)#11
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Configures, builds, and runs the ctest suite on push/PR: - Linux x86_64 (ubuntu-latest): NEON off, Vulkan via Mesa lavapipe (software rasterizer), CUDA off. Exercises the scalar/Eigen fallbacks and the Vulkan shaders under lavapipe. - Linux aarch64 (ubuntu-24.04-arm): NEON on, Vulkan via lavapipe, CUDA off. Actually runs the ARM NEON code paths. VK_ICD_FILENAMES is pinned to the lavapipe ICD so the loader does not try to find a host GPU (free runners have none). Not exercised here (no free CI hardware): - CUDA (test_cuda_kernels) — needs an NVIDIA GPU - SVE2 (test_sve2_kernels) — needs an ARMv9 core; the ubuntu-24.04-arm runner is Neoverse-N1, which is ARMv8.2-a with no SVE2 - FP16 NEON tests — build only on FP16-capable ARM targets Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
First attempt hard-coded /usr/share/vulkan/icd.d/lvp_icd.{x86_64,aarch64}.json
which does not exist on the current mesa-vulkan-drivers package on
ubuntu-latest / ubuntu-24.04-arm; both jobs failed on the "Force lavapipe"
step. Discover whichever lvp_icd.*.json the package actually installed,
fall back to letting the loader search /usr/share/vulkan/icd.d by default,
and as a last resort pin VK_LOADER_DRIVERS_SELECT=lvp.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
.github/workflows/ci.yml— the repo had no CI at all.ubuntu-latest(x86_64, NEON off) andubuntu-24.04-arm(aarch64, NEON on). Both configure, build, and run the ctest suite on every push tomainand every PR.VK_ICD_FILENAMESis pinned to the lavapipe ICD so the loader does not try to find a host GPU on the free-tier runner.What CI does not cover (no free hardware)
test_cuda_kernelsrequires an NVIDIA GPU; job runs with-DENABLE_CUDA=OFF.ubuntu-24.04-armrunner is Neoverse-N1 (ARMv8.2-A, no SVE2), sotest_sve2_kernelswill not be built there.OPTMATH_HAS_FP16CMake probe; will build on the aarch64 runner if the compiler accepts it, otherwise skipped.Test plan
mainand every future PR.🤖 Generated with Claude Code