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Path: utzoo!watmath!clyde!burl!ulysses!harpo!ihnp4!dual!mats
From: mats@dual.UUCP (Mats Wichmann)
Newsgroups: net.followup
Subject: Re: UNIX on CRAY-2
Message-ID: <475@dual.UUCP>
Date: Thu, 3-May-84 23:16:56 EDT
Article-I.D.: dual.475
Posted: Thu May  3 23:16:56 1984
Date-Received: Fri, 4-May-84 06:56:23 EDT
References: <1996@tekig.UUCP>
Organization: Dual Systems, Berkeley, CA
Lines: 19

Scuttlebutt says that there will really be five processors in the Cray-2;
four main processors, and a `system manager' type, which will probably
handle kernel-type functions. The main processors have a clock rate of
250 MHz (4 nanosecond cycle time), although Seymour is thinking of speeding
ths up to 1 ns by using Gallium Arsenide technology....the whole system
is liquid cooled (all logic circuits immersed in circulating coolant). Oh,
and the 64 megawords of memory - Cray uses a 64-bit word, so that is a
LOT of memory. As to UNIX, I understand that Cray has a UNIX emulation that
runs on top of COS for the Cray-1 which they will be using to get people
up to speed, until the Cray-2 is avalable. The Cray-2 will run a full
native-mode UNIX, no emulations. All of this sounds very interesting - 
especially in light of the recent article (me forgets where I saw it - 
somewhere on the net) that the Japanese are now building machines which 
surpass the Cray-2 (of which none even exist yet) - does anyone know more 
about this rumor?

	    Mats Wichmann
	    Dual Systems Corp.
	    ...{ucbvax,amd70,ihnp4,cbosgd,decwrl,fortune}!dual!mats