Article View: comp.sys.atari.st
Article #27166Re: More ST Floating Point Performance
From: ljdickey
Date: Thu, 11 Jun 1987 18:14
Date: Thu, 11 Jun 1987 18:14
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1454 bytes
In article <1959@trwrb.UUCP> sansom@trwrb.UUCP (Richard Sansom) writes: >The good news is that the results were _exactly_ the same as those produced >by the VAX 11/785. The bad news is that the ST is still much slower than it >should be (based on the Amiga's performance). Richard, Could it be that the speed of your program on the Amiga might have something do to with the precision of the arithmetic. I notice that your results show the Amiga to be fast, but not too accurate. Not too long ago, several people sent in performance reports for something called the "Savage Benchmark". My recollection is that there was a "speed-precision" trade off. On one machine, a program compiled with variables declared to be single precision ran faster, but were less accurate, than the same program variables declared to be double precision. I wonder if that could account for your observed differences. Lee Dickey
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!ljdickey From: ljdickey@water.UUCP Newsgroups: comp.sys.atari.st Subject: Re: More ST Floating Point Performance Message-ID: <995@water.UUCP> Date: Thu, 11-Jun-87 14:14:56 EDT Article-I.D.: water.995 Posted: Thu Jun 11 14:14:56 1987 Date-Received: Sat, 13-Jun-87 06:37:22 EDT References: <1959@trwrb.UUCP> Reply-To: ljdickey@water.UUCP (Lee Dickey) Distribution: world Organization: U. of Waterloo, Ontario Lines: 21