Re: [Help-glpk] Setting initial integer solution in GLPSOL

[Oscar Gustafsson]

Hi Xypron,

yes you can do that and several other things. However, I am still firmly 
convinced that for me the additional command line option for glpsol to 
provide an initial bound for the MILP solver would be very useful.

Regards

Oscar


On Mon, 15 Dec 2008, xypron wrote:

> Hello Oscar,
>
> > > I agree that this obviously is possible. However, at least for me it would
> > > be nice to have this command line option to keep the model "clean" (I do
>
> to pass a parameter to a model from the command line you can use a script,
> which will first create a data file and then pass it to glpsol (see example
> below).
>
> As glpsol can take multiple data files if necessary this does not require
> many changes.
>
> Best regards
>
> Xypron
>
>
> test.bat
> ========
> if "%1"=="" goto nodata
> echo data; param havedata := 1; param a := %1; end; > test.dat
> goto done
> :nodata
> echo data; param havedata := 0; param a := 0; end; > test.dat
> :done
> "c:\program files\glpk\glpk-4.34\w32\glpsol.exe" -m test.mod -d test.dat
>
> test.mod
> ========
> param havedata;
> param a;
> printf if (havedata) then a else "no data";
> end;
>
> --
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>
>
>
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