Originally posted by: gkirlik

Dear All,

I am using CPLEX 12.1 concert technology with C++. I coded a branch-and-cut algorithm by using CutCallback. UserCutCallbackI includes cuts to the model in every 100th iteration. Is it possible to apply preprocessing step after adding cuts to remove unnecessary cuts?
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

What do you mean by "unnecessary" cuts? CPLEX won't add cuts that are not violated.
If you think your cuts may become not useful after a while and should be removed then you should add them with 'purgeable=true' so that CPLEX can remove the cuts if they are no longer deemed useful.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: gkirlik

Firstly, thanks for your concern. I meant while saying unnecessary some constraints may be dominated by other constraints. In that case weak constraints (dominated by another constraint) only increase the problem dimension, and these constraints should be removed. Is there any way to remove weak constraints after adding user cuts?

Best regards
Gokhan
#CPLEXOptimizers
#DecisionOptimization