alex-breslow-amd cbb648505a Cheaper threadfence for gfx942 in postPeer [1/N]: enable for single node allreduce (#1766) ...

Boosts single node bfloat16 allreduce performance by up to 20% for some data sizes and provides gating with the RCCL_GFX942_CHEAP_FENCE_OFF environment variable

[ROCm/rccl commit: 11fabf1de1]

2025-07-22 07:15:15 -07:00

..

rccl

Cheaper threadfence for gfx942 in postPeer [1/N]: enable for single node allreduce (#1766)

2025-07-22 07:15:15 -07:00