Reduce unnecesary function call and use zip to transpose 2d list #2796
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Summary:
This diff aims to improve the performance of the `_set_sharding_context_post_a2a` in `embedding_sharding` module in TorchRec by reducing unnecessary function calls and using `zip_longest` to transpose 2D jagged lists.
Previous trace: about 4-5ms
{F1975959472}
Now: less than 4ms, some even less than 0.2ms, with much less operations
{F1975959630}
{F1975959609}
Test on IG TAB ESR TTSN model:
NE trending is same:
{F1975957602}
{F1975957605}
{F1975957635}
Differential Revision: D70960056
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This pull request was exported from Phabricator. Differential Revision: D70960056 |
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This pull request was exported from Phabricator. Differential Revision: D70960056 |
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Summary:
This diff aims to improve the performance of the
_set_sharding_context_post_a2ainembedding_shardingmodule in TorchRec by reducing unnecessary function calls and usingzip_longestto transpose 2D jagged lists.