[SCIP] cuts before branching begins

[Marcus Daniels]

Hi Leona, all,

Ok, the cuts are added by the quadratic constraint.  I found reducing constraints/quadratic/cutmaxrange is a way to minimize them.  Is there a better way?

Thanks,

Marcus

From: Scip <scip-bounces at zib.de> on behalf of Leona Gottwald <gottwald at zib.de>
Date: Tuesday, January 21, 2020 at 8:41 AM
To: "scip at zib.de" <scip at zib.de>
Subject: Re: [SCIP] cuts before branching begins


Hi Marcus,



try to display the statistics of SCIP. The source of the cuts could be a separator or a constraint handler. In the statistics you will see how many cuts are added by separators and constraint handlers.



The statistics can be printed in the command line with "display statistics" and in the callable library with SCIPprintStatistics().



Best,
Leona


On 1/21/20 5:28 PM, Marcus Daniels wrote:
Hi,

I have a problem where I see an extensive set of cuts (e.g. 10,000) before branching starts.   I tried disabling separation both at the command line level and programmatically in my sub-problem, but I still see them being added.   I also tried setting separating/maxcutsroot to 0.   What is the source of these cuts and can I disable them?

Thanks,

Marcus



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