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Re: AW: [Help-glpk] Sets of ordered pairs: Differences between AMPL and


From: Andrew Makhorin
Subject: Re: AW: [Help-glpk] Sets of ordered pairs: Differences between AMPL and GNU MathProg
Date: Thu, 20 Nov 2008 00:03:26 +0300

> I tried it with the following DLLs:

> v4.9 (old version dating from 2006) 32 bit
> v4.28 both 32 and 64 bit
> v4.31 32 bit 

> Strangely they all produce the same result (MIN 5 X[1,b2] + 5 X[1,b3] +
> 5 X[1,b5]).

> I'm goning to try 4.33 as well. 

> I'll try to dig a little bit depper on the problem and maybe I send you
> a little program to reproduce the effect.

Xypron tested your model in 32- and 64-bit environment and in both cases
the result was correct; please see:
http://lists.gnu.org/archive/html/help-glpk/2008-11/msg00042.html
http://lists.gnu.org/archive/html/help-glpk/2008-11/msg00043.html

So there is definitely something wrong out of glpk.





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