Originally posted by: SystemAdmin

[kekkek said:]

hi, I have a model with a non linear constraint. I wrote the model in ILOG OPL 5.2. But I wonder if the model gives the optimal solution. Because as I know, since it can not use simplex, I am not sure about the optimal solution. I searched and see that it uses constraint programming. Can someone give me a clear answer about the optimality. I will really appreciate. Thanks
#ConstraintProgramming-General
#DecisionOptimization

Originally posted by: SystemAdmin

[alain.chabrier said:]

is your model starting with a statement like
using CPLEX;
or
using CP;

if not then it uses CPLEX.
What does the engine log says ? this is what should tell you if an optimal solution has been found or not, and if not why or what is the stopping criterion that was used.

Alain
#ConstraintProgramming-General
#DecisionOptimization