On May 10, 2007, at 10:28 AM, Michael S. Tsirkin wrote:
What is the advantage of this approach?
Current ipoib cm uses this approach to simplify the implementation.
Overhead seems insignificant.
I think MPI's requirements are a bit different than IPoIB. See
Gleb's response. It is not uncommon for MPI apps to have connections
open to many peers simultaneously. Registered memory / internal
buffering usage is a Big Deal in the MPI / HPC community.
--
Jeff Squyres
Cisco Systems
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