Path: utzoo!news-server.csri.toronto.edu!rutgers!usc!zaphod.mps.ohio-state.edu!mips!cprice
From: cprice@mips.com (Charlie Price)
Newsgroups: comp.arch
Subject: Re: Be Prepared...
Keywords: Lots Of Memory
Message-ID: <839@spim.mips.COM>
Date: 9 Mar 91 05:46:50 GMT
References: <4517@alliant.Alliant.COM> <62994@bbn.BBN.COM> <1991Feb28.183404.19076@murdoch.acc.Virginia.EDU>
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In article <1991Feb28.183404.19076@murdoch.acc.Virginia.EDU> clc5q@madras.cs.Virginia.EDU (Clark L. Coleman) writes:
>
>The referenced articles discuss multiprocessor systems with 4GB of real
>memory, or the potential to be built with 4GB of real memory.
>
>... but the question remains
>whether 4GB of REAL memory (not disk drives mapped into memory), 
>addressable by any single processor (including a processor within a
>multiprocessor system) is "just around the corner".

The R6000 processor (MIPS ECL) has a 36-bit physical address,
so the CHIP can address 64 GBytes of physical memory.
The virtual space for any process is 2 GBytes (shades of an 11/70!).

Whether anybody ever builds a box with this that has even 4 GBytes
in it is an entirely separate question.
-- 
Charlie Price    cprice@mips.mips.com        (408) 720-1700
MIPS Computer Systems / 928 Arques Ave.  MS 1-03 / Sunnyvale, CA   94086-23650