Re: [Help-glpk] [Fwd: glp_intopt conversion of solutions via callback]

[Michael Hennebry]

On Fri, 15 Jan 2016, Heinrich Schuchardt wrote:

> Looking at the code in src/glpkapi09.c and glpapi13.c the documentation
> is wrong.
>
> The problem accessible in the MIP callback is the presolved and scaled
> problem. So if you have a heuristic solution expressed in your original
> variables you should switch off presolving and scaling.

Perhaps it would be a good idea to make the presolving and
scaling transformation available to the user program.
It could just be a matter of documentation.
The information must already be somewhere,
otherwise glpsol could not invert it.

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