trunk/50c2fe5a203d2ab869f97086d1aac695d5dbae06: Skip nccl4py backend tests on ROCm (#198288)
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- Previous: earlier the same day · trunk/9f7da91ed96fa0a9f2052069d6d51087d3432cf1: [dynamo] Make global SKIP override regional exec strategies (#198060)
What happened
Impact: CI only (ROCm distributed test shards) Risk: low What Gate test/distributed/test_c10d_nccl4py.py on not TEST_WITH_ROCM so the whole file is skipped on ROCm runners, as it was before. Why nccl.core imports fine on ROCm, so the existing HAS_NCCL4PY / torch.cuda.is_available() guards let these tests run there — but the backend dlopens libnccl.so.2 on first use, which only NVIDIA ships. #195904 changed the surro…
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