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Re: [Help-glpk] Is GLPK the software that I have been looking for?
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From: |
Erik |
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Subject: |
Re: [Help-glpk] Is GLPK the software that I have been looking for? |
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Date: |
Tue, 03 Nov 2009 20:36:45 +0100 |
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User-agent: |
Thunderbird 2.0.0.23 (X11/20091031) |
Andrew Makhorin skrev:
> The glpk mip solver is not intended to find all optimal or integer
> feasible solutions. However, once you have found one solution, you may
> add an additional constraint to cut off corresponding point; this
> allows you to find an alternate solution, if it exists.
>
Good idea! Then the program can for example be used to prove that there
are no more solutions to the example than the one that I gave.
A bit tedious when there are many solutions though. When I read about
logilab-constraint at [http://www.logilab.org/card/eid/3441], I noticed
that the solver was said to provide 64 solutions to the sample problem
described there. Maybe they use a very different kind of solver.