[Scip] zerohalf problems

[michael.winkler@zib.de]

Thank you, you suggested the correct fix.

Best, Michael

> I think there's a problem when using the exact (sub-IP) approach to
> finding zerohalf cuts.
> For example, when running SCIP 3.0.1 with this scip.set
>
> separating/zerohalf/freq = 1
> separating/zerohalf/delay = TRUE
> separating/zerohalf/separating/sepamethods = "S"
>
> on bell5.mps I get the error shown in the attached output. I think
> this is because the sub-IP
> sets "display/nsols/active" to 2 but does not (normally) copy across
> the 'displays' in the call to SCIPcopyPlugins.
> Anyway, the problem goes away if I do make the copy. That is change if
> I change line 4967 of sep_zerohalf.c from:
>          TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE,
> TRUE, &success) );
> to
>          TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, TRUE,
> &success) );
>
> James
>
> --
> James Cussens
> Dept of Computer Science &
> York Centre for Complex Systems Analysis
> Room 326, The Hub, Deramore Lane            Tel    +44 (0)1904 325371
> University of York                                        Fax  +44
> (0)1904 500159
> York YO10 5GE, UK
> http://www.cs.york.ac.uk/~jc
> http://www.york.ac.uk/docs/disclaimer/email.htm
> _______________________________________________
> Scip mailing list
> Scip at zib.de
> http://listserv.zib.de/mailman/listinfo/scip
>