How to add new problems

[Lessvn]

Hi,

I am new to ML/CO and my question my seem basic. I am going to solve vehicle routing problem (VRP). How I build my model and set up the instance generator for? I am coding in Python, so should I code it in SCIP? What steps are needed? Thanks!

[AntoinePrv]

Hello @Lessvn,

To define your problem, you can either use one of the file type supported by SCIP, or use the modelling methods of PySCIPOpt (Model.addVar, Model.addCons, Model.setObsejctive...).

Then you can convert it to an Ecole Model using ecole.scip.Model.from_pysciopt.