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openucx / ucc

Unified Collective Communication Library
https://openucx.github.io/ucc/
BSD 3-Clause "New" or "Revised" License
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TL/UCP: Add linear alltoall and allgather algorithms based on xgvmi ucp get #992

Open nsarka opened 6 days ago

nsarka commented 6 days ago

This PR is a follow up to allreduce sliding window. It adds linear alltoall and allgather algorithms based on XGVMI. They will post ucp gets from host to host in a round robin fashion.

janjust commented 4 days ago

I don't think we should do this now, but these algorithms, including sliding-window AR will not need the allgather in the init function when #909 is merged