[Beowulf] How to justify the use MPI codes on multicore systems/PCs?

Rayson Ho raysonlogin at gmail.com
Mon Dec 12 08:00:23 PST 2011

On Sat, Dec 10, 2011 at 3:21 PM, amjad ali <amjad11 at gmail.com> wrote:
> (2) The latest MPI implementations are intelligent enough that they use some
> efficient mechanism while executing MPI based codes on shared memory
> (multicore) machines.  (please tell me any reference to quote this fact).

Not an academic paper, but from a real MPI library developer/architect:


Open MPI is used by Japan's K computer (current #1 TOP 500 computer)
and LANL's RoadRunner (#1 Jun 08 – Nov 09), and "10^16 Flops Can't Be
Wrong" and "10^15 Flops Can't Be Wrong":



Grid Engine / Open Grid Scheduler

Scalable Grid Engine Support Program

> Please help me in formally justifying this and comment/modify above two
> justifications. Better if I you can suggent me to quote some reference of
> any suitable publication in this regard.
> best regards,
> Amjad Ali
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