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ea2bbabffd
The prebuilt vllm 0.14.1+cpu wheel requires SIMD instructions (AVX-512 VNNI/BF16) that stock ubuntu-latest GitHub runners don't support — vllm.model_executor.models.registry SIGILLs on import during LoadModel. Source compilation works but takes 30-40 minutes per CI run, which is too slow for an e2e smoke test. Instead, switch tests-vllm-grpc to the bigger-runner self-hosted label (already used by backend.yml for the llama-cpp CUDA build) — that hardware has the required SIMD baseline and the prebuilt wheel runs cleanly. FROM_SOURCE=true is kept as an opt-in escape hatch: - install.sh still has the CPU source-build path for hosts that need it - backend/Dockerfile.python still declares the ARG + ENV - Makefile docker-build-backend still forwards the build-arg when set Default CI path uses the fast prebuilt wheel; source build can be re-enabled by exporting FROM_SOURCE=true in the environment.
Creating a separate environment for the vllm project
make vllm