Add NCCL backend#55

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msimberg wants to merge 25 commits intoghex-org:mainfrom

msimberg:nccl-context

Commits on Nov 3, 2025

Add first dummy version of NCCL backend
msimberg
committed
Clean up some unnecessary nccl files and try to port more mpi functionality to nccl
msimberg
committed

Commits on Nov 27, 2025

Add todos
msimberg
committed

Commits on Dec 3, 2025

Update nccl support
msimberg
committed

Commits on Dec 18, 2025

Commits on Jan 7, 2026

Add event pool and cached cuda event helper
msimberg
committed

Commits on Jan 8, 2026