Decision Optimization

Decision Optimization

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


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  • 1.  Detecting whether an instance is infeasible.

    Posted 07/15/09 02:17 AM

    Originally posted by: SystemAdmin


    [cosmicsolution said:]

    I am using Ilog Solver 6.0 to detect whether an instance is feasible or not with the following algorithm:

    - If a solution is not found when run for T seconds, I do a re-start with T = T*2.

    This is done using the function: solver.setTimeLimit(T), and then calling solver.solve();

    However, when solver.solve() return false, how can i know whether it is  because there is NO feasible solution, or because
    there is no more time left to continue the search?

    Thank you very much.

    #CPOptimizer
    #DecisionOptimization


  • 2.  Re: Detecting whether an instance is infeasible.

    Posted 07/15/09 03:44 PM

    Originally posted by: SystemAdmin


    [kiopi said:]

    I think you can use [i]IloSolver::getFailureStatus[/i]
    If the solve fails because of the time limit, the value must be [i]searchStoppedByLimit[/i]

    #CPOptimizer
    #DecisionOptimization