Update ignore_index parameter for flash attention #580
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epwalsh
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May 16, 2024
olmo/train.py
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| ignore_index_kwarg = {} | ||
| if version.parse(flash_attn.__version__) >= version.parse("2.5.8"): | ||
| # The parameter name was changed in v2.5.8 with commit https://github.com/Dao-AILab/flash-attention/commit/ec6d22143b5d375e253b2ebfc563b26a43f43684 | ||
| ignore_index_kwarg = {"ignore_index": ignore_index} | ||
| else: | ||
| ignore_index_kwarg = {"ignored_index": ignore_index} | ||
|
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I think it would be more efficient to parse the version outside of this function, above, so we don't do it on every call.
epwalsh
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May 16, 2024
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The flash attention library changed the
cross_entropy_lossparameterignored_indextoignore_indexin v2.5.8. This changes lets us support v2.5.8.