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From: Chevchenkovic Chevchenkovic (chevchenkovic_at_[hidden])
Date: 2006-11-07 04:32:09


Hi,
  I had the following setup:
 Rank 0 process on node 1 wants to send an array of particular size to Rank
1 process on same node.
1. What are the optimisations that can be done/invoked while running mpirun
to perform this memory to memory transfer efficiently?
2. Is there any performance gain if 2 processes that are exchanging data
arrays are kept on the same node rather than on different nodes connected by
infiniband?
 Awaiting a reply,
-Chev