Decision Optimization

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Number of attempts to repair infeasible CP start

  • 1.  Number of attempts to repair infeasible CP start

    Posted Mon July 29, 2024 04:47 PM
    Hi there. 
     
    I was wondering if CP Optimizer allows setting the number of attempts (or time) to repair an infeasible CP initial solution given to the solver.
     
    Something similar to the option available for CPLEX as described in 

    number of attempts to repair infeasible MIP start

    Thank you.

    Francisco Y.



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    Francisco Yuraszeck
    Yuraszeck
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  • 2.  RE: Number of attempts to repair infeasible CP start

    Posted Wed July 31, 2024 05:02 AM

    There is no way to control the effort made when trying to complete a solution given as a warmstart.
    CP Optimizer make a certain amount of effort to complete the solution.  When this effort fails, in some cases the solution is used as a guide for finding an initial solution of the model when it is hard to find one, but the effectiveness of this depends on other factors.

    It would be useful to have more details about your usage of a warmstart solution to see how you could sort this out. 

    Regards 


    Original Message