[SCIP] Issue with interactive shell

[Gregor Hendel]

Dear Abbas,

I am not sure but it seems that you are confusing things a little. 
SCIP's interactive shell is an interface to read a problem, change some 
parameters, (pre-)solve an instance, display parameters, and save the 
result. With some experience, you can script more custom behavior into 
batch files and feed them into SCIP. Branch-and-cut is already there and 
does not have to be implemented again. Have you tried solving an 
instance using the interactive shell already? Have you seen our online 
tutorial <https://scip.zib.de/doc-6.0.2/html/SHELL.php> on how to use 
the interactive shell? Do people read such documentation nowadays?

The interactive shell does not have the capability of some other solvers 
where you can enter a custom callback, e.g. for branching. However, you 
can customize the frequency at which solution information is displayed 
(by using "set display freq 1", information is displayed at every search 
tree node). You should also browse the available display columns to see 
what information apart from the default columns you can view during search.

I also recommend reading the pages 
https://scip.zib.de/doc-6.0.2/html/INTERFACES.php and 
https://scip.zib.de/doc-6.0.2/html/START.php. Finally, if you share more 
details about what you try to achieve, we can probably give you better 
advise.

Kind regards,
Gregor


Am 26.07.19 um 20:28 schrieb abbas omidi:
> Dear support team,
>
> I'm trying to solve a MIP using SCIP on WIN10-x64. I have some issues 
> with the interactive shell.
> Does it have the capability to implement algorithms such as branch and 
> cut, or it must be implemented using a programming language like C/C++?
> For instance, is there any way to get the number of parent/child 
> nodes, processed nodes, pruned nodes or implementing Gomory cuts using 
> the interactive shell?
>
> Best regards
>
> _______________________________________________
> Scip mailing list
> Scip at zib.de
> https://listserv.zib.de/mailman/listinfo/scip

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