Pedram Alizadeh 93ac2ea61e all_reduce LL/LL128 and Ring/Tree multi-node tuning for MI300 (#1627) ...

* Enabling LL128 by default on MI300

* Add missing CUDACHECK

* Adjust BW correction factors to fix the Tree->Ring switching point

* Refactor and add ll128 AR logarithmic factor to tuning models

* Move RCCL tuning changes to a separate file 

* Use enum for tunable indexing

* Use explicit indexing in tuning models to avoid mismatch issues

* Place rcclGetSizePerRank in a function

* Remove HIP ifdef for rccl-only call

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Co-authored-by: Mustafa Abduljabbar <mustafa.abduljabbar@amd.com>

[ROCm/rccl commit: e40ff4f84a]

2025-04-10 11:43:54 -04:00

projects/rccl

all_reduce LL/LL128 and Ring/Tree multi-node tuning for MI300 (#1627)

2025-04-10 11:43:54 -04:00

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