[Beowulf] multi-threading vs. MPI

Toon Knapen toon.knapen at gmail.com
Fri Dec 7 15:41:37 EST 2007


Greg Lindahl wrote:
> 
> In real life (i.e. not HPC), everyone uses message passing between
> nodes.  So I don't see what you're getting at.
> 


Many on this list suggest that using multiple MPI-processes on one and 
the same node is superior to MT approaches IIUC. However I have the 
impression that almost the whole industry is looking into MT to benefit 
from multi-core without even considering message-passing. Why is that so?

toon
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