XSLP_SOLVER

First order differentiation mode when using analytical derivatives

Integer

-1	automatic selection, based on model characteristics and solver availability
0	use Xpress-SLP (always available)
1	use Knitro if available

-1

The presence of Knitro is detected automatically. Knitro can be used to solve any problem loaded into XSLP, independently from how the problem was loaded. XSLP_SOLVER is set to automatic, XSLP will be selected if any SLP specific construct has been loaded (these are ignored if Knitro is selcetd manually).