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Bucket small tensors and collective operations into larger ones #5

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xrsrke opened this issue Oct 25, 2023 · 0 comments

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xrsrke commented Oct 25, 2023 •

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Similar to https://github.com/facebookresearch/fairscale/blob/164cc0f3170b4a3951dd84dda29c3e1504ac4d6e/fairscale/internal/reduce_scatter_bucketer.py#L74. But we design it in a modular way.

Store tensors in a continuous memory space
Support partitioning a bucket across parallelism dimension
Wait for the bucket fill up and do a distributed operation in a bucket
Move a tensor out of a bucket
Reuse the bucket after flush it

xrsrke changed the title ~~Store tensor in continuous memory~~ Bucket small tensors and collective operations into larger ones

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xrsrke added this to the v1 milestone

xrsrke removed the help wanted label

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