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Groups > comp.compilers > #1017
| From | glen herrmannsfeldt <gah@ugcs.caltech.edu> |
|---|---|
| Newsgroups | comp.compilers |
| Subject | Re: Compiler optimization and floating point operations |
| Date | 2013-10-24 20:21 +0000 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <13-10-034@comp.compilers> (permalink) |
| References | <13-10-026@comp.compilers> <13-10-029@comp.compilers> |
(snip, John wrote) > [I think you mean they're not associative. I don't know any > situations where a+b != b+a, but lots where a+(b+c) != (a+b)+c -John] I don't know of any with non-commutative addition, but there were some Cray machines with non-commutative multiply. For many Cray applications, getting a close answer fast is better than the exact answer slow. -- glen [Oh, right. Can we safely assume that arithmetic model is dead? -John]
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Compiler optimization and floating point operations Abid <abidmuslim@gmail.com> - 2013-10-23 13:47 -0700
Re: Compiler optimization and floating point operations Cameron McInally <cameron.mcinally@nyu.edu> - 2013-10-23 22:55 -0400
Re: Compiler optimization and floating point operations glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-10-24 02:56 +0000
Re: Compiler optimization and floating point operations George Neuner <gneuner2@comcast.net> - 2013-10-24 07:41 -0400
Re: Compiler optimization and floating point operations Jean-Marc Bourguet <jm@bourguet.org> - 2013-10-24 15:51 +0200
Re: Compiler optimization and floating point operations "Steven G. Kargl" <sgk@troutmask.apl.washington.edu> - 2013-10-24 16:38 +0000
Re: Compiler optimization and floating point operations christian.bau@cbau.wanadoo.co.uk - 2013-10-28 15:54 -0700
Re: Compiler optimization and floating point operations George Neuner <gneuner2@comcast.net> - 2013-10-24 15:51 -0400
Re: Compiler optimization and floating point operations glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-10-24 20:21 +0000
Re: Compiler optimization and floating point operations christian.bau@cbau.wanadoo.co.uk - 2013-10-28 15:50 -0700
Re: Compiler optimization and floating point operations Cameron McInally <cameron.mcinally@nyu.edu> - 2013-10-28 20:41 -0400
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