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Path: utzoo!utgpu!water!watnot!watmath!daemon
From: daemon@watmath.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: Floating Point Benchmarks
Message-ID: <6393@watmath.UUCP>
Date: Thu, 26-Mar-87 19:07:50 EST
Article-I.D.: watmath.6393
Posted: Thu Mar 26 19:07:50 1987
Date-Received: Sat, 28-Mar-87 01:29:03 EST
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> Thanks to Sandra Loosemore for posting the interesting benchmarks.
> Here are results of the Savage benchmark for Megamax C on the Atari ST
> (8 MHz 68000):
> 					time	error
> 
> 	Single precision:		146	4.3E+01
> 	Double precision:		496	8.5E-07
> 	Double precision, with 32081:	119	2.2E-08
> 
> 
> - Moshe Braner
> 

I tried out your code with the Mark Williams Version 2 C compiler
(their latest update) and I got some surprising results:


					time	error

	Single precision:		82.6	-2.56E-01
	Double precision:		82.7	-1.19E-07

(I even checked to see that I had the right program :-)

It seems that Mark Williams has done their homework with floating
point algorithms!


The new version has some great features, such as real if statements
and while loops in the shell, alias, pages and pages of GEM
documentation, etc.  I'm really pleased with what I've seen so far.


Mike Berkley, University of Waterloo

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