[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [Gomp-discuss] parallell vs. distributed
From: |
Steven Bosscher |
Subject: |
RE: [Gomp-discuss] parallell vs. distributed |
Date: |
04 Feb 2003 18:09:14 +0100 |
Op di 04-02-2003, om 17:17 schreef Scott Robert Ladd:
> OpenMP was designed for SMP-like applications. Note that "SMP" is not
> limited to dual processor desktop machines; an example of an "SMP
> Supercomputer" is the new SGI Altix.
Pedantic: SGI Altix is *not* SMP ("symmetric multi processor"). Instead
it's a NUMA machine (Cray NUMAflex architecture on top of Intel Itanium)
:-P
I'd expect that NUMA and OpenMP don't go together very well unless you
can do some kind of decomposition of the problem. IIRC that's BLOCK and
DISTRIBUTE in High Performance Fortran[1]. Hard stuff.
Greetz
Steven
[1] If anyone really cares BTW, there already exists a GPL'ed HPF
compiler called GMD Adaptor.