[MPICH] mpich and multicore

Darius Buntinas buntinas at mcs.anl.gov
Mon Jun 18 11:02:59 CDT 2007

MPICH2 can be configured with the nemesis channel which will use shared 
memory for intranode communication and a network for internode 
communication.  The README file gives details on configuring for nemesis.


Diego M. Vadell wrote:
> Hi,
>     Sorry if this is a FAQ, but I couldn't find it. We are thinking about 
> buying dual quad-core nodes for our cluster. Will mpich use shared memory to 
> communicate between processes in the same node and the network to communicate 
> to processes in other nodes, or will it use just the network?
> Thanks in advance,
>  -- Diego.

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