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Article #417Re: Precision requirements
From: Toon Moene
Date: Sat, 12 Dec 1992 15:29
Date: Sat, 12 Dec 1992 15:29
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In article <1992Dec10.141843.2836@cis.uab.edu> hyatt@cis.uab.edu (Robert Hyatt) writes: > It would be interesting to see > how many still use the 32bit numbers anyway, and try to "increase" their > accuracy by doing more iterations...... As with most things - it depends on what you're talking about. I run the same (Numerical Weather Prediction) code on my NeXT that runs on Cray's, Convexes and assorted stuff. They run in 64 bit mode, I use (f2c to run it in) 32 bit mode. Fine with me. If it runs as well in 32 bit mode as in 64 bit mode this means the numerical analists have done their homework, that is, they've come up with a (time and space) discretization scheme that's sufficiently stable ... -- Toon Moene (toon@moene.indiv.nluug.nl) Kantershof 269, 1104 GN Amsterdam, The Netherlands Tel.: + 31 20 6982029; Fax: + 31 20 6003411 No Disclaimers; a NeXT at home protects against this occupational hazard.
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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sun4nl!moene!moene.indiv.nluug.nl From: toon@moene.indiv.nluug.nl (Toon Moene) Newsgroups: comp.sys.super Subject: Re: Precision requirements Message-ID: <396@moene.indiv.nluug.nl> Date: 12 Dec 92 15:29:47 GMT References: <1992Dec10.141843.2836@cis.uab.edu> Sender: toon@moene.indiv.nluug.nl Organization: Moene Computational Physics, Amsterdam, The Netherlands Lines: 20