[SCIP] The emphasis parameters in GCG

[Abbas Omidi]

Dear Prof, Lübbecke,

Many thanks for your prompt response as well as informative comments. I
will check the provided link and will get back to you if I have any
questions.

Best regards
Abbas

On Mon, Jan 29, 2024 at 11:20 AM Marco Lübbecke <
marco.luebbecke at rwth-aachen.de> wrote:

> Hi Abbas,
>
> the full list of GCG parameters is in the documentation:
> https://gcg.or.rwth-aachen.de/doc-3.5.0/PARAMETERS.html
>
> There are also "emphasis" parameters for heuristics (both, for the
> original and master program), cuts separation, detection, etc. with
> which you can experiment. To determine "whether different parameter
> settings (other than the default) can be useful" I would always first
> check the solving statistics: where did you spend the time? In
> heuristics? No? Then, obviously, there is no need to reduce heuristics
> solving time. Etc. Please directly contact me if you have any
> questions.
>
> All the best, Marco
>
>
>
> Am Mo., 29. Jan. 2024 um 08:32 Uhr schrieb Abbas Omidi <
> abb.omidi at gmail.com>:
> >
> > Dear support team,
> >
> > I hope this email finds you well and also have a pleasant year.
> > I have used GCG, (pygcgopt - GCG version 3.5.5 [GitHash: da78996a]), to
> investigate some modeling structures and also its capability to
> automatically decompose the problems.
> > As you know, SCIP has had some useful emphasis setting that helps
> accelerate the solving process. (E.g.
> m.setHeuristics(SCIP_PARAMSETTING.FAST)).
> > Could you please, is it still relevant to use these kinds of settings in
> pygcgopt? If not, which one can be applied?
> >
> > All the best
> > Abbas
> > _______________________________________________
> > Scip mailing list
> > Scip at zib.de
> > https://listserv.zib.de/mailman/listinfo/scip
>
>
>
> --
> Prof. Dr. Marco Lübbecke
> RWTH Aachen University
> Chair of Operations Research
> Kackertstrasse 7
> D-52072 Aachen
> Germany
>
> fon / fax: +49 241 80-93362 / 92369
> marco.luebbecke at rwth-aachen.de
> www.or.rwth-aachen.de/luebbecke
>
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