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From: reiter@harvard.UUCP (Ehud Reiter)
Newsgroups: net.arch
Subject: CRAY Question
Message-ID: <905@harvard.UUCP>
Date: Wed, 30-Apr-86 09:38:23 EDT
Article-I.D.: harvard.905
Posted: Wed Apr 30 09:38:23 1986
Date-Received: Sat, 3-May-86 01:34:24 EDT
Reply-To: reiter@harvard.UUCP (Ehud Reiter)
Distribution: net
Organization: Aiken Comp Lab, Harvard
Lines: 11

In one of Jack Dongarra's articles on LINPACK performance (Computer Archicture
News, vol 11, no 5 (Dec 83)), he says that a CRAY 1-M executes the benchmark
faster than a CRAY 1-S because the 1-M has slower memory.  I fail to see how it
is even theoretically possible for slower memory to mean higher performance,
and would appreciate someone who knows about CRAY's explaining this to me
(Dongarra talks about a "missed chain-slot").

Thanks.
						Ehud Reiter
						harvard!reiter.UUCP
						reiter@harvard.ARPA