Enable FP8 compare_xpu #2154
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Enable FP8 compare_xpu #2154
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Pull Request Overview
This PR enables FP8 (8-bit floating point) dtype support for comparison operations on XPU devices. The changes update both the kernel implementation and test suite to handle the new float8 types introduced in PyTorch.
Key changes:
- Extended comparison kernel dispatcher to include all float8 dtypes (e5m2, e4m3fn, e4m3fnuz, e5m2fnuz, e8m0fnu)
- Enhanced test coverage to validate comparison operations across all float8 types
- Updated test infrastructure to use float32 CPU references for float8 comparisons
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| src/ATen/native/xpu/sycl/CompareKernels.cpp | Replaced AT_DISPATCH_ALL_TYPES_AND3 with AT_DISPATCH_V2 to include float8 dtypes |
| test/regressions/test_compare.py | Added comprehensive float8 dtype test coverage with proper CPU reference handling |
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Issue link: #1939