Revert "BF16 optimizer: Clear lp grads after updating hp grads in hook" #6508
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microsoft#5328)" This reverts commit 40009eb.
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@nelyahu Thanks. This change looks good to me. |
tjruwase
approved these changes
Sep 9, 2024
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Reverts #5328
After offline discussion with @YangQun1 , we agreed that there is no memory effect as clear_lp_grads flag triggers zero_() ops which just zeros buffers and does not free any memory. the outcome is compute overhead.