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Re: [Help-glpk] Suggestions
From: |
Andrew Makhorin |
Subject: |
Re: [Help-glpk] Suggestions |
Date: |
Sun, 4 Dec 2005 21:18:38 +0300 |
> I've been trying GLPK for a month now and I have some
> suggestions for
> enhancement that would make the package more
> attractive (at least to me!).
Thank you for suggestions.
>
> 1) The possibility to specify that the matrix is
> symmetric and therefore use
> half the storage.
I've never met lp/mip problems having symmetric matrices. Could you
provide an example?
> 2) The possibility to use normal matrix storage
> (instead of sparse). For a
> dense matrix that would save half the storage again.
On api level the user cannot work with the normal matrix. It is
implemented internally in the interior-point solver.
> 3) The possibility to use an initial point in the
> lpx_interior method.
Probably this feature would be useful.