Decision Optimization

Decision Optimization

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

 View Only

  • 1.  "OplRun is not responding, you must relaunch the RunConfig"

    Posted Mon February 17, 2020 01:48 PM

    Originally posted by: AnaPedro


    Hello,

    I have a project running in IBM ILOG CPLEX Optimization Studio 12.10 and I encounter a problem "OplRun is not responding, you must relaunch the RunConfig" in OPL IDE. I already solved this project on a machine with less memory using IBM ILOG CPLEX Optimization Studio 12.6…so I think it can´t be a memory problem. I can't find the reason for this error. Someone can help me?

    Thanks in advance!

    Ana Pedro

     


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 2.  Re: "OplRun is not responding, you must relaunch the RunConfig"



  • 3.  Re: "OplRun is not responding, you must relaunch the RunConfig"

    Posted Tue February 18, 2020 08:39 AM

    Originally posted by: AnaPedro


    Hi,

    I run my configuration from oplrun through: Run>External Tools>Run As>1 oplrun and I got the same error after about 60 minutes. However, despite the error, the oplrun did'nt stop and solved the model to the optimum.

    It looks like the IDE crashes...

    The error message appears, usualy, around 60 minutes of execution.

    Thanks,

    Ana Pedro


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 4.  Re: "OplRun is not responding, you must relaunch the RunConfig"

    Posted Tue February 18, 2020 09:43 AM

    Originally posted by: FredericDelhoume


    To me this does not look like an IDE specific issue, this message happens when the IDE cannot communicate with the solve process on a regular basis.

    What is strange is that you say "oplrun gives  the same error message after 60 minutes".

     

    This error message is specific to the IDE, so oplrun should not give the same one.

     

    I think the solve process is stuck somewhere for a long time. When does it happen ? at the end ?

    Can you attach or give the oplrun log ?


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 5.  Re: "OplRun is not responding, you must relaunch the RunConfig"

    Posted Tue February 18, 2020 12:30 PM

    Originally posted by: AnaPedro


    Hi,

    Maybe I was not clear in the previous message. The error message was given by the IDE when I was using the oplrun as external tool. Despite the error message the oplrun continued to run until it found the optimal solution.

     

    I just tried with another instance:

     - Running normally in the IDE, I got the error message after 60 minutes of execution. Attached the engine log file.

     - Running using the oplrun as external tool, I got the optimal solution after 76 minutes without any error message.

    Thanks,

    Ana Pedro

     


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 6.  Re: "OplRun is not responding, you must relaunch the RunConfig"

    Posted Wed February 19, 2020 03:53 AM

    Originally posted by: FredericDelhoume


    Clearly the engine log is not complete in the IDE case.

    I suspect the engine is taking some CPU or memory and does not respond to ping messages from the IDE, for some reason unknown to me.

     

    What you can try is run the solve in so-called "collocated mode", so  that a separate process is not spawned.

     

    See https://www.ibm.com/support/pages/start-cplex-optimization-studio-ide-collocated-mode


    #DecisionOptimization
    #OPLusingCPLEXOptimizer