Newsgroups: comp.parallel.mpi
From: tomc@sloweddy.tam.uiuc.edu (tom cortese)
Subject: Direct memory access, or via cache?
Organization: University of Illinois at Urbana-Champaign
Date: 15 Sep 1997 21:22:51 GMT
Message-ID: <5vk8vb$d00$2@vixen.cso.uiuc.edu>


	When executing MPI on a machine with primary and secondary
cache (e.g. SGI Origin2000, CRAY T3E), does MPI read/write directly from/to each
processor's memory, or do the messages have to go through the cache?