[Beowulf] Definition of HPC

Hearns, John john.hearns at mclaren.com
Tue Apr 23 02:06:38 PDT 2013


As an aside, I would guess most people know this tool, but if you don't install  and have a close look at the hardware layout of your systems:

http://www.open-mpi.org/projects/hwloc/

Install the hwloc package and run 'lstopo' to look at the system topology. Also can show where your IO and graphics cards are.
(Yes I KNOW they are somewhere inside the box - but in a big system placement of cards like that can be relevant).

numactl --hardware   and  watch numastat are your friends also.



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