Decision Optimization

Decision Optimization

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


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  • 1.  Explanation for warning message "Infinity bound ignored."

    Posted 04/13/11 10:24 AM

    Originally posted by: Xammy


    Hi,

    when solving the simple problem

    Maximize
 obj: 0.1 x + y
Subject To
 c1: x + y <= 2
 c2: - x + y <= 1
Bounds
      x Free
      y Free
Generals
 x  y
End


    with CPLEX 12.2 Academic, I get lines like "Warning: Infinity bound ignored" while processing the root node. Can somebody explain what it means or when they do occur?

    Thank you!
    Matthias
    #CPLEXOptimizers
    #DecisionOptimization


  • 2.  Re: Explanation for warning message "Infinity bound ignored."

    Posted 04/13/11 12:39 PM

    Originally posted by: SystemAdmin


    This certainly has to do with the free general integer variables. It is most probably a buggy warning message that can be ignored. We will investigate this.
    #CPLEXOptimizers
    #DecisionOptimization


  • 3.  Re: Explanation for warning message "Infinity bound ignored."

    Posted 04/14/11 05:03 AM

    Originally posted by: SystemAdmin


    This is a known issue. It has been fixed in CPLEX 12.2.0.2. Don't worry about this message. You can just ignore it. It is internal to some primal heuristic.

    Tobias
    #CPLEXOptimizers
    #DecisionOptimization


  • 4.  Re: Explanation for warning message "Infinity bound ignored."

    Posted 04/15/11 03:29 AM

    Originally posted by: Xammy


    Thank you very much for the quick response!

    Matthias
    #CPLEXOptimizers
    #DecisionOptimization


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