Topic
  • 3 replies
  • Latest Post - ‏2013-01-29T07:18:55Z by SystemAdmin
SystemAdmin
SystemAdmin
7929 Posts

Pinned topic importModel procedure much slower in cplex 12.5?

‏2013-01-24T22:47:32Z |
Has anyone else noticed that the importModel IloCplex c++ command is much much slower in 12.5 than previous versions?

thanks!
Updated on 2013-01-29T07:18:55Z at 2013-01-29T07:18:55Z by SystemAdmin
  • SystemAdmin
    SystemAdmin
    7929 Posts

    Re: importModel procedure much slower in cplex 12.5?

    ‏2013-01-25T06:15:47Z  
    Hm, that is not intended. What kind of model are you reading (.mps, .lp, .sav)? Is the model packed (.gz, .bz2) or not? What was the previous version you tried?
  • SystemAdmin
    SystemAdmin
    7929 Posts

    Re: importModel procedure much slower in cplex 12.5?

    ‏2013-01-28T15:15:15Z  
    Hm, that is not intended. What kind of model are you reading (.mps, .lp, .sav)? Is the model packed (.gz, .bz2) or not? What was the previous version you tried?
    I've tried with both .mps and .lp (haven't tried .sav), the model was not packed. The previous versions that worked faster were 12.3 and 12.4.1
    thanks
  • SystemAdmin
    SystemAdmin
    7929 Posts

    Re: importModel procedure much slower in cplex 12.5?

    ‏2013-01-29T07:18:55Z  
    I've tried with both .mps and .lp (haven't tried .sav), the model was not packed. The previous versions that worked faster were 12.3 and 12.4.1
    thanks
    I have a hard time reproducing this here. What were the import times you observed with 12.3 and 12.4 and what are the times you observe with 12.5?
    Could you attach an example MPS file here or send one to daniel(dot)junglas(at)de(dot)ibm(dot)com.
    How many arguments do you pass to the importModel() function? Only the IloModel reference and the file name or do you use one of the overloads that returns arrays of variables, constraints, etc.?