On Tue, Apr 14, 2009 at 03:44:17PM -0700, Christian Bell wrote: > Sure, capacity and conflict misses will apply like > they do in any cache but Jon's statement remains correct -- in SPMD > applications, you really want all processes to benefit from cache hits in > your "single program".
... then why do vendors make such a fuss about duplicating program text pages in big NUMA machines? As an example: www.sc2001.org/papers/pap.pap241.pdf The issue is that fetching from distant memory is expensive, even if there's no writing going on. Locality, locality, locality. -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
