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Re: [Help-glpk] what is the difference between this two glpsol?
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From: |
Michael Hennebry |
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Subject: |
Re: [Help-glpk] what is the difference between this two glpsol? |
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Date: |
Fri, 27 Feb 2009 10:25:11 -0600 (CST) |
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User-agent: |
Alpine 1.00 (DEB 882 2007-12-20) |
On Fri, 27 Feb 2009, Andrew Makhorin wrote:
Note that you should not expect identical results for different
compilers, because glpk uses floating-point computations.
On non-Intel machines, it might be more likely though.
On Intel machines and most compilers,
a double in a register is different from a double elsewhere.
Register useage affects the math.
On many other machines, register useage does not affect the math.
--
Michael address@hidden
"Pessimist: The glass is half empty.
Optimist: The glass is half full.
Engineer: The glass is twice as big as it needs to be."