Decision Optimization

Decision Optimization

Delivers prescriptive analytics capabilities and decision intelligence to improve decision-making.


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  • 1.  CPLEX cuts

    Posted 01/07/12 02:59 AM

    Originally posted by: amindehghanian


    Hi,

    I am using a control callback to add my own cuts to some MILP. I just wonder if CPLEX is still using its own cuts for solving this mixed integer program?

    Thanks for your time,
    Amin
    #CPLEXOptimizers
    #DecisionOptimization


  • 2.  Re: CPLEX cuts

    Posted 01/08/12 05:02 PM

    Originally posted by: SystemAdmin


    The use of control callbacks (to add cuts and otherwise), does not disable CPLEX's cut generation and addition process. If you would like CPLEX to not add any of its cuts to the model then you will need to set the CutsFactor parameter (CPX_PARAM_CUTSFACTOR in callable library) to 1.0.
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    #DecisionOptimization


  • 3.  Re: CPLEX cuts

    Posted 01/10/12 09:25 PM

    Originally posted by: amindehghanian


    Thanks for your answer!

    I am also looking for "dynamic search strategy" of CPLEX. Is there anyway such that I can easily implement it in my branch and cut code? Or is there any reference such that I can find what CPLEX is doing in "dynamic search strategy"?

    Thanks again,
    Amin
    #CPLEXOptimizers
    #DecisionOptimization


  • 4.  Re: CPLEX cuts

    Posted 01/12/12 05:39 PM

    Originally posted by: SystemAdmin


    We consider the "dynamic search" algorithm as proprietary material and thus will not be able to provide you with any details regarding the same. Please note that no papers/references describing it exist accordingly.
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