mpi-prog porting from lam -> scyld beowulf mpi difficulties

Sean Dilda agrajag at scyld.com
Thu Nov 29 15:46:10 PST 2001


On Wed, 28 Nov 2001, Peter Beerli wrote:

> (1) if I run "top" why do I see 6 processes running when I start
>     with mpirun -np 3 migrate-n ? 

Two per node.  For every process your want running, it also runs another
one to take care of the MPI network I/O.   Our MPI is based off of
mpich, and this is how they have it setup.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 232 bytes
Desc: not available
Url : http://www.scyld.com/pipermail/beowulf/attachments/20011129/ae2ddf85/attachment.bin


More information about the Beowulf mailing list