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Re: optimization/10772: Result differences between debug and optmizelibs on linux; and with sol/nt on optimize mode
- From: Wolfgang Bangerth <bangerth at ices dot utexas dot edu>
- To: omar beo <omarbeo at hotmail dot com>
- Cc: gcc-bugs at gcc dot gnu dot org, <gcc-gnats at gcc dot gnu dot org>
- Date: Wed, 14 May 2003 15:52:52 -0500 (CDT)
- Subject: Re: optimization/10772: Result differences between debug and optmizelibs on linux; and with sol/nt on optimize mode
> But this did not answer the original question, why I?m not getting the same
> results in the other platforms?
Because x86 has a fundamentally broken floating point model with different
accuracy of floats in registers and in memory. x86 FP computations are
fundamentally unreliable if you're used to thinking in what "decent"
processors do.
W.
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Wolfgang Bangerth email: bangerth@ices.utexas.edu
www: http://www.ices.utexas.edu/~bangerth/