[SCIP] Separator not called

Gregor Hendel hendel at zib.de
Thu Sep 14 09:23:58 CEST 2017


Dear Emanuel,

I am sorry for your troubles. A good first step to debugging unexpected 
plugin behavior is to
add the define

#define SCIP_DEBUG

at the very top of the file src/scip/sepa.c. After recompiling SCIP and 
inputting a problem to optimize,
you should see a lot of prose explaining why SCIP decides to run (or not 
to run) your plugin.

If you need further assistance, please add information about concrete 
parameter values for priority, maxrounds, frequency, and also the 
DELAYED flag.

Kind regards,
Gregor




Am 13.09.2017 um 17:29 schrieb Emanuel Delgadillo:
> Hi,
>
> I have implemented a branch-price with SCIP and I want to add a 
> separator. I coded it with C++ extending ObjSepa class and included it 
> to scip, but it is never called.
> I have output messages in it, and I have checked maxrounds(root) and 
> maxcuts(root) are not 0 and also tried with different values for 
> priority and frequency. I have my own version of 
> includeDefaultPlugins, which doesn't include any other default separator.
> I have already checked documentation, examples and previous similar 
> threads, but I couldn't solve it. I also checked some files of source 
> code (solve.c) to find what I'm doing wrong, without success.
> Any ideas?
>
> Thanks in advance,
> Emanuel
>
>
>
>
>
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> Scip at zib.de
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