Decision Optimization

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CPLEX stops and Laptop screen goes Dark when Optimizing large models

  • 1.  CPLEX stops and Laptop screen goes Dark when Optimizing large models

    Posted Thu May 18, 2017 08:53 AM

    Originally posted by: Rohit_Sar


    Hi so I'm solving an MIP formulation with over 29 million constraints, 29 million binary decision variables and several hundred million coefficients/parameters.

    My laptop has 4GB of ram. CPLEX is reading data from a 2D 29millionX29 value matrix. When I run the code, it works for a few seconds then seizes up and my laptop goes dark and has to be restarted. Any advice on what to do? I'm planning on upgrading my RAM to 16GB atm.


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 2.  Re: CPLEX stops and Laptop screen goes Dark when Optimizing large models

    Posted Thu May 18, 2017 08:58 AM

    Hi,

    do not hesitate to have a look at

    http://www-01.ibm.com/support/docview.wss?uid=swg21399933

    Your problem looks huge. Can t you aggregate a bit or solve a smaller model for a start ?

    regards


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


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