Update KJT stride calculation logic to be based off of inverse_indices for VBE KJTs. #2949
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…s for VBE KJTs. (pytorch#2949) Summary: Update the `_maybe_compute_stride_kjt` logic to calculate stride based off of `inverse_indices` for VBE KJTs. Currently, stride of VBE KJT with `stride_per_key_per_rank` is calculated as the max "stride per key". This is different from the batch size of the EBC output KeyedTensor which is based off of inverse_indices. This causes issues in IR module serialization: debug doc. Differential Revision: D74273083
…s for VBE KJTs. (pytorch#2949) Summary: Update the `_maybe_compute_stride_kjt` logic to calculate stride based off of `inverse_indices` for VBE KJTs. Currently, stride of VBE KJT with `stride_per_key_per_rank` is calculated as the max "stride per key". This is different from the batch size of the EBC output KeyedTensor which is based off of inverse_indices. This causes issues in IR module serialization: debug doc. Differential Revision: D74273083
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This pull request was exported from Phabricator. Differential Revision: D74273083 |
jd7-tr
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that referenced
this pull request
May 7, 2025
…s for VBE KJTs. (pytorch#2949) Summary: Update the `_maybe_compute_stride_kjt` logic to calculate stride based off of `inverse_indices` for VBE KJTs. Currently, stride of VBE KJT with `stride_per_key_per_rank` is calculated as the max "stride per key". This is different from the batch size of the EBC output KeyedTensor which is based off of inverse_indices. This causes issues in IR module serialization: debug doc. Differential Revision: D74273083
jd7-tr
added a commit
to jd7-tr/torchrec
that referenced
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May 7, 2025
…s for VBE KJTs. (pytorch#2949) Summary: Update the `_maybe_compute_stride_kjt` logic to calculate stride based off of `inverse_indices` for VBE KJTs. Currently, stride of VBE KJT with `stride_per_key_per_rank` is calculated as the max "stride per key". This is different from the batch size of the EBC output KeyedTensor which is based off of inverse_indices. This causes issues in IR module serialization: debug doc. Differential Revision: D74273083
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Summary:
Update the
_maybe_compute_stride_kjtlogic to calculate stride based off ofinverse_indicesfor VBE KJTs.Currently, stride of VBE KJT with
stride_per_key_per_rankis calculated as the max "stride per key". This is different from the batch size of the EBC output KeyedTensor which is based off of inverse_indices. This causes issues in IR module serialization: debug doc.Differential Revision: D74273083