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Re: [Help-glpk] precision for MIP
From: |
Robert Fourer |
Subject: |
Re: [Help-glpk] precision for MIP |
Date: |
Mon, 21 Mar 2005 09:57:11 -0600 |
User-agent: |
Microsoft-Entourage/10.0.0.1309 |
You might want to look at the EXLP package referenced in the LP FAQ
(http://www-unix.mcs.anl.gov/otc/Guide/faq/linear-programming-faq.html). At
least, it might provide some inspiration.
You might also want to reconsider why you have such large coefficients to
begin with. Perhaps there are insights that would lead to a more tractable
formulation.
Bob Fourer
address@hidden
In reply to the message from >>> David Stephenson
<address@hidden> received 3/21/05 9:00 AM:
> I am getting quite a few numerical instability (dual simplex) warnings
> while solving a MIP problem with coefficients on the order of 10^8, and
> so I'm considering trying to integrate an arbitrary precision package
> into the GLPK code.
>
> Has anyone out there already tried this?
>
> DS
>
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