PsiEngine(engine name, model name)

PsiEngine selects the engine for the optimization model.   Pass the name of the Engine, in quotes, as the first argument, Engine Name:  Standard LSGRG Nonlinear, Standard LP/QP Quadratic, Standard Evolutionary, Standard Interval Global, or Standard SOCP Barrier.   You may pass a model or sheet name, in quotes, for the last argument, model name, to indicate to ASP what model or worksheet the engine selection belongs.