Controlling Engine Selection and Setting
Optimization engines can be controlled by changing certain internal settings. These settings are accessible through the optional «SettingName» and «SettingValue» parameters of DefineOptimization(). It is sometimes useful to experiment with different settings if the engine is not performing as expected on a particular type of problem (see Specifying Settings).
You may also want to try different engines using the optional «Engine» parameter of DefineOptimization().