Decision Optimization

Decision Optimization

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


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  • 1.  Initial bounds to CPLEX MIP?

    Posted 01/18/13 01:24 AM

    Originally posted by: ArthurRodrigues


    Is there any way to inform CPLEX of a previously known feasible solution or even previously known lower and/or upper bounds prior to MIP optimization?

    Explaining better: I have a linear integer model loaded into CPLEX but I already found either a feasible solution to it or a good initial bound to its solution. So, I was wondering if there was any way to tell CPLEX about this informations, so it could take advantage of it, maybe speeding up the solving process.

    Thank you for your help,


    Bsc. in Computer Science at Universidade Federal do Ceará
    Msc. in Computer Science student at Universidade Federal do Ceará
    Member of the Parallelism, Graphs and Optimization Research Group (ParGO)
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  • 2.  Re: Initial bounds to CPLEX MIP?

    Posted 01/18/13 01:34 AM

    Originally posted by: SystemAdmin


    What you are asking for is "MIP starts" and is explained in this and this chapter in the user manual.
    You can also provide initial bounds using parameters CPX_PARAM_CUTLO or CPX_PARAM_CUTUP.
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