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Michael Norris
63378f0ace
Summary: Pull Request resolved: https://github.com/facebookresearch/faiss/pull/5401 `faiss/gpu/test/test_gpu_index_serialize.py` was timing out (10 min hard cap) on the GitHub `Linux x86_64 GPU w/ cuVS (cmake)` job, hanging inside `index_cpu_to_gpu` on the first cuVS GPU operation. Root cause: D106837134 bumped the conda cuVS toolkit from CUDA 12.9 to 13.3. The 13.3 `cudart` deadlocks cuVS GPU kernels on the T4 runner. The change's stated intent was only to pull `libnvJitLink` up to 13.3 — the conda `libcuvs=26.06` build links it and needs the `__nvJitLinkCreate_13_3` symbol — but `cuda-nvcc`, `cuda-cudart-dev`, `cuda-cupti`, and `cuda-nvtx` were bumped to 13.3 alongside it. CUDA 13.2 is already the version used by both the non-cuVS GPU job and the pip-wheel cuVS build (whose GPU smoke test passes on the same T4 runner class), and it matches the runner driver. Only `libnvJitLink` actually needs to be 13.3. Fix: pin the CUDA toolkit (`cuda-nvcc`/`cuda-cudart-dev`/`cuda-cupti`/`cuda-nvtx` and `cuda-version`) back to 13.2 for the cuVS cmake build, keeping the explicit `libnvjitlink>=13.3,<14` pin so `libcuvs` still loads. passed in https://github.com/facebookresearch/faiss/actions/runs/29109874975/job/86419354334?pr=5401 Reviewed By: alibeklfc Differential Revision: D111466548 fbshipit-source-id: 6eef20488605981f2326aaa2fb628b3315b9ed75