Decision Optimization

Decision Optimization

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


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  • 1.  isIntegerfeasible() returns false when solution is integer

    Posted 02/25/11 12:19 PM

    Originally posted by: claud10


    Hi, I am experiencing the following issue. In one machine (my laptop, an intel core 2 duo x86_64) a MIP runs fine. In another machine (intel xeon x86_64) with the exactly same code, the function isIntegerfeasible() inside a BranchCallback seems to be returning false even if the solution is integer feasible, thus branching infinitely. I read the changelog of the last fixpack and it mentions something related to this function, however I do not know whether this may be a bug or I am missing something.

    Thanks in advance,

    Claudio
    #CPLEXOptimizers
    #DecisionOptimization


  • 2.  Re: isIntegerfeasible() returns false when solution is integer

    Posted 03/07/11 02:56 AM

    Originally posted by: SystemAdmin


    Do you have SOS constraints or indicators in your model?

    Are you able to reproduce the behavior with a small example code that you could share?
    #CPLEXOptimizers
    #DecisionOptimization


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