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  • Latest Post - ‏2009-03-20T22:50:48Z by SystemAdmin
SystemAdmin
SystemAdmin
151 Posts

Pinned topic Requirements in ODM

‏2009-03-14T05:40:52Z |

[Boon said:]

Hi,

When I solved the model in ODM and have requirements saying "The value 1 does not respect the limit 1".

The variable in this constraint is binary variable.

Would you please explain what does it mean?
(I ran the same model in the OPL, and it didn't say that it is infeasible on this constaint. I have other infeasibilities at other constraints which is shown in ODM as well thought.)

thanks a lot.
Updated on 2009-03-20T22:50:48Z at 2009-03-20T22:50:48Z by SystemAdmin
  • SystemAdmin
    SystemAdmin
    151 Posts

    Re: Requirements in ODM

    ‏2009-03-20T22:50:48Z  

    [alain.chabrier said:]

    Hi,

    can you give some details on the precise ODM version use and which kind of constraint it is about (a code extract would be nice).

    It might be due to a tolerance issue. The tolerance in OPL for solving a model and in ODM (using CPLEX feasOPt algorithm) are not the same.
    You might set a tolerance per constraint in ODM requiremtn editor.

    Alain