Wenkai Du
20975921dd
Current SHM object name would only use pidHash and ranks as
identification, which would collide each other when program runs with
multiple communicators. Here we added commId info into pidHash, it makes
'pidHash'es of different communicators keeping in same process will be
distincted with each other.
Ported from original commit: https://github.com/lowintelligence/nccl/commits/shm
[ROCm/rccl commit: 949d680e49]