Originally posted by: SystemAdmin

[stefan_s said:]

Hi,

I'm writing a C++ program that uses CPLEX. I need it to give me: First Integer solution, Best integer solution at root node, LP relaxation solution, and MIP solution, and all the corresponding variable values. Is it possible?

Thank you
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[prubin said:]

I assume you want the full solution, not just the objective value (which would show up in the node log).  I think you can get all but the LP relaxation solution using an incumbent callback.  For the LP solution, I think you need one of the subclasses of ControlCallback (heuristic, branch or cut callback).  In all cases, the getValue or getValues method would be the method to use.

/Paul
#CPLEXOptimizers
#DecisionOptimization