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From: aglew@ccvaxa.UUCP
Newsgroups: net.arch
Subject: Re: VERY LARGE main memories: crypt
Message-ID: <5100130@ccvaxa>
Date: Thu, 11-Sep-86 12:04:00 EDT
Article-I.D.: ccvaxa.5100130
Posted: Thu Sep 11 12:04:00 1986
Date-Received: Sat, 13-Sep-86 04:36:33 EDT
References: <15505@ucbvax.BERKELEY.EDU>
Lines: 15
Nf-ID: #R:ucbvax.BERKELEY.EDU:15505:ccvaxa:5100130:000:650
Nf-From: ccvaxa.UUCP!aglew    Sep 11 11:04:00 1986


> I think Miya's point, in complaining that we were talking about
> the Cray size in bytes when it is really in words, is that when
> you're talking about address decoding, 256MW is NOT the same
> problem as 2GB.  It's three bits less.  Whether that's an
> important distinction or not, though...
> 
> scott preece

Yeah, but then, for any machine with a cache, the true address is 
reduced by the cache line size. So, a 2GB memory in a machine with
a 128 bit cache line is actually only 27 bits, 4 bits less.

Andy "Krazy" Glew. Gould CSD-Urbana.    USEnet:  ihnp4!uiucdcs!ccvaxa!aglew
1101 E. University, Urbana, IL 61801    ARPAnet: aglew@gswd-vms