pytorch

41286f15 - [IntraNodeComm] fix a hybridCubeMeshAllReduceKernel breakage caused by a recent refactor (#121575)

[IntraNodeComm] fix a hybridCubeMeshAllReduceKernel breakage caused by a recent refactor (#121575) `hybridCubeMeshAllReduceKernel` uses the latter half of p2p buffers as relay buffers. The relay buffer address is calculated using a bf16 base pointer and the buffer size in byte. The breakage was caused by not taking element size into account. Pull Request resolved: https://github.com/pytorch/pytorch/pull/121575 Approved by: https://github.com/Chillee