XSLP_PRESOLVE

This control determines whether presolving should be performed prior to starting the main algorithm

Integer

0	Disable SLP presolve.
1	Activate SLP presolve.
2	Low memory presolve. Original problem is not restored by postsolve and dual solution may not be completely postsolved.

1

The Xpress NonLinear nonlinear presolve (which is carried out once, before augmentation) is independent of the Optimizer presolve (which is carried out during each SLP iteration).

XSLPconstruct, XSLPpresolve

XSLP_PRESOLVELEVEL, XSLP_PRESOLVEOPS, XSLP_REFORMULATE, XSLP_PRESOLVEPASSLIMIT