[SCIP] concurrent solving mode in pyscipopt

[Graczyk, Christoph]

Hi Alice,
It seems like you tried to use a member function model.concurrentopt() which does not exist, i believe what you are looking for is the model.solveConcurrent() call.
If you look into the src/pyscipopt/scip.pyx you can find all the existing functions for the objects you are using, so for example in your case inside the object is the class model and you can find the def solveConcurrent(self) function definition inside.
If you have other issues please open an issue over at https://github.com/scipopt/PySCIPOpt/issues to directly interact with the PySCIPOpt team.

Best regards,
Christoph

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________________________________
Von: Scip <scip-bounces at zib.de> im Auftrag von Alice Calamita <alice.calamita at uniroma1.it>
Gesendet: Sonntag, 4. September 2022 21:33:42
An: scip at zib.de
Betreff: [SCIP] concurrent solving mode in pyscipopt

Hi,

I wanted to use the concurrent solving mode in SCIP (the latest version) to solve a MIQP problem. I'm using the pyscipopt library on python.

I tried with model.concurrentopt() instead of model.optimize() to optimize, but it didn't work, the error message was:
AttributeError: 'pyscipopt.scip.Model' object has no attribute 'concurrentopt'

I read that I need to set up something before being able to use it.
This is my first time with SCIP and I'm not a computer scientist.
Could you please explain in detail what I need to set up and how I can do it?

Thank you very much.
Kind regards,

Alice Calamita

PhD student in Operations Research

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