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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.

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