Originally posted by: SystemAdmin

[Francois van Staden said:]

Hay!

I would like to know what instruction to use to solve a MIP problem.  I already created the LP in c# using the C libraries and now have to solve the problem.  When I use the instruction:

    int initialStatus = CplexI.CPXmipopt(env, lp);

it works fine for small LP's that have an optimal solution.  The problem comes in when you have a large problem.  Then CPLEX finds a suboptimal solution and stores it in the solution pool.  I want to start solving the problem and stop immediately after a solution have been saved in the solution pool.

Can anyone help me please!!!!

#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[dgravot@noos.fr said:]

I'm not that familiar with the CplexI mode (Callable Library), but roughly you have to set the parameter CPX_PARAM_INTSOLLIM to 1 to stop at the first solution

In the C# API , one would use more directly :
myCplex.SetParam(Cplex.IntParam.IntSolLim,1);//where myCplex is a Cplex instance

Hope this helps

David Gravot
#CPLEXOptimizers
#DecisionOptimization