ILOG CPLEX 11.0 User's Manual

Table 1.4 on page 55 summarizes the options available at nodes.Table 1.4 Algorithm Types for NodeAlgValue Algorithm Type MILP? MIQP? MIQCP?0 IloCplex::Auto yes yes yes1 IloCplex::Primal yes yes not available2 IloCplex::Dual yes yes not available3 IloCplex::Network yes not available not available4 IloCplex::Barrier yes yes yes5 IloCplex::Sifting yes not available not availableControlling the OptimizersThough ILOG CPLEX defaults will prove sufficient to solve most problems, ILOG CPLEXoffers a variety of parameters to control various algorithmic choices. ILOG CPLEXparameters can assume values of type bool, num, int, and string. IloCplex providesfour categories of parameters that are listed in the nested enumeration typesIloCplex::BoolParam, IloCplex::IntParam, IloCplex::NumParam,IloCplex::StringParam.To access the current value of a parameter that interests you from Concert Technology, usethe method getParam. To access the default value of a parameter, use the methodgetDefault. Use the methods getMin and getMax to access the minimum and maximumvalues of num and int type parameters.ILOG CPLEX 11.0 — USER’ S MANUAL 55