fix: Set CUDA arch list for UCCL EP build to SM90+#1808
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fix: Set CUDA arch list for UCCL EP build to SM90+#1808
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Signed-off-by: Dong Hyuk Chang <9426164+thomasdhc@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Signed-off-by: Dong Hyuk Chang <9426164+thomasdhc@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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What does this PR do ?
UCCL EP build fails with PTX errors because setup.py compiles for all CUDA architectures including SM75, but the
code uses SM90+ features (cp.async.bulk, .bulk_group). Sets TORCH_CUDA_ARCH_LIST="9.0 10.0 12.0" to match the
DeepEP build configuration.
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