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From: eugene@ames.UUCP (Eugene Miya)
Newsgroups: net.arch
Subject: Re: 128Mb - I give up!
Message-ID: <1280@ames.UUCP>
Date: Mon, 16-Dec-85 13:23:45 EST
Article-I.D.: ames.1280
Posted: Mon Dec 16 13:23:45 1985
Date-Received: Thu, 19-Dec-85 04:27:34 EST
References: <285@frog.UUCP> <34249@lanl.ARPA> <696@unc.unc.UUCP> <34416@lanl.ARPA> <710@unc.unc.UUCP>
Organization: NASA-Ames Research Center, Mtn. View, CA
Lines: 26

> peaks on different problems. My experience (which i admit was
> somewhat limited) was that the Cybers generally performed better
> on numerical linear algebra stuff.
> 
> I also make comparisons according to "supercomputer generation":
> 		Cybers    vs.   Cray-1s
> 		ETAs (yet to appear machine) vs. Cray-2 & Cray-XMP
> On the whole i would rather own a Cyber....
> 

Hum [I've been off the net for a while], we own all of these machines:
2 X-MPs, a 4 pipe 205 and a 2.  I would rather own a Cray.  I suggest
you read the article in Science about the von Neuman Computer Center
and the hot water they got into about switching their purchase
from a Cyber to a Cray.  It might all be moot shortly as the Japanese
machines have caught up and in some cases exceeded the American
machines (including quality software).  Also your comment about
tuned benchmarks [you used the LLNL loops as an example] is not
entirely true.  That is why I based some of my research on them.
BTW, I have not forgotten to send you the NEC paper, it's that I
got back from Washington DC only to have to attend meetings else where.
Back to ETA/CDC: the question will arise in the near future what
will we have to do if ETA cannot make the ETA-10?  Do we give them
a Chrysler (sp) bailout?  Is such a thing possible?

--eugene miya