Can anyone help on this?
> I am doing a research on parallel techniques for shared-memory
> systems(NUMA). I understand that OpenMPI is intelligent to utilize
> shared-memory system and it uses processor-affinity. Is the OpenMPI
> design of MPI_AllReduce "same" for shared-memory (NUMA) as well as
> distributed system? Can someone please tell me MPI_AllReduce design,
> brief, in terms of processes and their interaction on shared-memory?
> Else please suggest me a good reference for this.
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