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- Path: sparky!uunet!ogicse!orstcs!orstcs!usenetusenet
- From: crowl@jade.CS.ORST.EDU (Lawrence Crowl)
- Newsgroups: comp.arch
- Subject: Re: Goals, Cost, and Flexibility (was Re: "Training" of programmers)
- Message-ID: <1992Sep14.193517.6471@CS.ORST.EDU>
- Date: 14 Sep 92 19:35:17 GMT
- Article-I.D.: CS.1992Sep14.193517.6471
- References: <BuFK3y.3H5@mentor.cc.purdue.edu> <1992Sep13.033602.3708@CS.ORST.EDU> <1992Sep13.080843.7741@theus.rain.com>
- Sender: usenet@CS.ORST.EDU
- Organization: Oregon State University, Corvallis Oregon
- Lines: 38
- Nntp-Posting-Host: jade.cs.orst.edu
-
- In article <1992Sep13.080843.7741@theus.rain.com>
- john@theus.rain.com (John Theus) writes:
- >In article <1992Sep13.033602.3708@CS.ORST.EDU>
- >crowl@jade.CS.ORST.EDU (Lawrence Crowl) writes:
- >>
- >>I've been computing for 17 years, and in all that time I don't think I've
- >>done characteristic roots more than a couple of times. My sister has been
- >>word processing, spread-sheeting, etc. for six years, and I don't think she's
- >>ever done a characteristic root. So, 23 years of computing, 2 roots.
- >>
- >If you're using an ASCII display, then you may not be doing any roots. If you
- >ever do any serious graphics work, then its likely that square root is heavy
- >used. I used to be a system architect designing 3D graphics workstations for
- >applications like mechanical CAE/CAD. Root performance was always critical in
- >those systems, and our RISC processor vendors payed attention when we
- >complained about their lack of square root hardware.
-
- Characteristic roots aren't the same as square roots, but at any rate, this
- is the kind of post I like to see. "Square root performance is critical to
- graphics systems". Given that and its cost, I can make a judgement about its
- effectiveness for a given application/market.
-
- >Now, maybe you think the graphics market is unimportant to the RISC processor
- >vendors, but if that is so, why do several of the current generation parts
- >have graphics execution units?
-
- Maybe it was more cost effective than square root hardware? I don't know.
-
- >Gee, I didn't know anyone in the CS department at Oregon State was designing
- >commercial processors with the marketing staff necessary to back up such a
- >statement.
-
- Blush. I was being a touch to expansive in my use of we. Sorry.
-
- --
- Lawrence Crowl 503-737-2554 Computer Science Department
- crowl@cs.orst.edu Oregon State University
- ...!hplabs!hp-pcd!orstcs!crowl Corvallis, Oregon, 97331-3202
-