[SCIP] Errors in using GCG version 3.5 for solving some miplib instances.

Marco Lübbecke marco.luebbecke at rwth-aachen.de
Sat Apr 16 15:38:50 CEST 2022


Hi Yunzhuang,

thanks, we file this as a bug report to look into as soon as we have
capacities; you can write to me directly for any updates on this
issue.

And thanks also for trying GCG on "unstructured" input, if you would
like to share with us your application cases, I am all ears as well.

All the best, Marco

Am Sa., 16. Apr. 2022 um 07:58 Uhr schrieb Yunzhuang Shen
<s3640365 at student.rmit.edu.au>:
>
> Hi SCIP folks,
>
> I am using GCG 3.5 (with SCIP 8.0.0) to solve MIPLIB instances with the decomposition tag.
>
> I find that for some of these instances such as "academictimetablesmall", GCG terminates with the segmentation fault. So I ran the program in debug mode and the attached file is the output. I also tried GCG 3.0.5 (with SCIP 7.0.3) to solve the same instance "academictimetablesmall" and GCG seems to be fine.
>
> Regards,
> Yunzhuang
>
> _______________________________________________
> 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



More information about the Scip mailing list