Topic
  • 2 replies
  • Latest Post - ‏2013-06-26T08:11:17Z by Zahar
Zahar
Zahar
4 Posts

Pinned topic warmstart OPL example does not work in 12.5

‏2013-06-23T15:11:55Z |

Hi experts,

 

There is OPL example project "warmstart" in CPLEX studio distribution. It doesn't give the expected result if run on cplex 12.5. Specifically, the output is

x = [10 0 0 0 0 0 0 0 0 0];
y = [1 2 3 4 5 6 7 8 9 10];
for the second run, instead of

x = [0 0 0 0 10 0 0 0 0 0];
y = [1 2 3 4 5 6 7 8 9 10];

In other words, cplex does not catch the provided warm start.

 

The example does work correctly in 12.2 and 12.4

My system is Win7, 64 bit, Cplex studio 64 bit as well.

 

Does anyone know anything about this issue? When will it be fixed? Is there a workaround I can apply in 12.5 to use the functionality?

 

Thanks,

Zahar

  • AlexFleischer
    AlexFleischer
    1206 Posts

    Re: warmstart OPL example does not work in 12.5

    ‏2013-06-25T13:30:16Z  

    Hi,

     

    can you try with 12.5.1 ?

     

    https://www.ibm.com/developerworks/community/forums/html/topic?id=5ae45065-0d13-4b48-8e9d-23904cac99a5&ps=25

     

    regards

  • Zahar
    Zahar
    4 Posts

    Re: warmstart OPL example does not work in 12.5

    ‏2013-06-26T08:11:17Z  

    Thank you Alex, in 12.5.1 the problem disappeared. So it was a quickly fixed development bug.

     

    Regards,

    Zahar