[Dip] Dippy says problem is infeasible

[Ted Ralphs]

Hi Romain,

Are you using DIP as a generic solver or have you built an application? Can
you send the .lp file and the block file, as well as other information,
such as version number, platform, compiler, etc.? I would like to try and
replicate this.

Cheers,

Ted

On Thu, Feb 9, 2017 at 6:36 PM, Romain Montagné <romain.montagne at polymtl.ca>
wrote:

> PS: After saying the problem is infeasible, I get the following error:  "Segmentation
> fault (core dumped)"
>
>
> Le 9 févr. 2017 à 17:45, Romain Montagné <romain.montagne at polymtl.ca> a
> écrit :
>
> Hello DIP community,
>
> I am using Dippy to solve a MILP. I want to compare  branch-and-bound and
> branch-and-price performances.
>
> When I solve the problem with branch-and-bound (i.e., with the option
> ‘doPriceCut’ set to 0), it works great. But when I activate the
> ‘doPriceCut’ option for branch-and-price, it tells me the problem is
> infeasible.
>
> Does anyone know what is happening?
>
> I have looked at the .lp file as well as the block file and they look ok.
>
> Any help is greatly appreciated.
>
> Cheers,
>
> Romain Montagné, PhD
>
>
>
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-- 
Dr. Ted Ralphs
Visiting Researcher, Zuse Institute Berlin
Professor, Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted
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