Article View: comp.arch
Article #13228Re: 64 Vs 32
From: Howard A. Landman
Date: Tue, 17 Mar 1987 22:26
Date: Tue, 17 Mar 1987 22:26
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In article <1310@ucbcad.berkeley.edu> faustus@ucbcad.berkeley.edu (Wayne A. Christopher) writes: >What we need to ask is, who will need more than ~1G of memory? For quick construction of hypothetical memory-hogs, I always think of image processing. Let's say you're working on data from an imaging spectrophotometer which has 256 frequency bands and 16-bit resolution in each band, and your image is 4K by 4K pixels. That's 2^(8+1+12+12) = 2^33 = 8 GB memory to hold just *ONE* *IMAGE*. Sure would be nice to get it all in memory at once. Of course, it would also be nice to have a processor-per-pixel; that's only 16 M processors, each with at least 512 bytes of working memory, is that too much to ask? Today, you might be able to do it with 256 Connection Machines ($1 M each) connected in a big array or hypercube arrangement ... shouldn't cost more than a quarter billion if we can get a volume discount. :-) -- Howard A. Landman ...!intelca!mipos3!cpocd2!howard
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!ames!ucbcad!ucbvax!decvax!tektronix!cae780!amdcad!amd!intelca!mipos3!cpocd2!howard From: howard@cpocd2.UUCP (Howard A. Landman) Newsgroups: comp.arch Subject: Re: 64 Vs 32 Message-ID: <508@cpocd2.UUCP> Date: Tue, 17-Mar-87 17:26:09 EST Article-I.D.: cpocd2.508 Posted: Tue Mar 17 17:26:09 1987 Date-Received: Thu, 19-Mar-87 07:06:50 EST References: <3810013@nucsrl.UUCP> <985@rpics.RPI.EDU> <1310@ucbcad.berkeley.edu> Reply-To: howard@cpocd2.UUCP (Howard A. Landman) Organization: Intel Corp. ASIC Services Organization, Chandler AZ Lines: 17 Keywords: gigabyte memory usage image processing Summary: Who will need more than 1 GB of memory?