Initializing help system before first use

XSLP_PRESOLVELEVEL, NLPPRESOLVELEVEL

Description
This control determines the level of changes presolve may carry out on the problem and whether column/row indices may change
Type
Integer
Values
1 
Individual rows only presolve, no dropped columns/rows or index changes, no nonlinear transformations ( XSLP_PRESOLVELEVEL_LOCALIZED).
2 
All linear presolve that does not drop columns/rows, no index changes, no nonlinear transformations ( XSLP_PRESOLVELEVEL_BASIC).
3 
Full linear presolve including dropping columns/rows and index changes, no nonlinear transformations ( XSLP_PRESOLVELEVEL_LINEAR).
4 
Full presolve ( XSLP_PRESOLVELEVEL_FULL).
Default value
XSLP_PRESOLVELEVEL_FULL
Note
XSLP_PRESOLVEOPS and XSLP_REFORMULATE controls the operations carried out in presolve. XSLP_PRESOLVELEVEL controls how those operations may change the problem. XSLP_PRESOLVE controls whether presolve is performed at all.
Affects routines
XSLPconstruct, XSLPpresolve
See also
XSLP_PRESOLVE, XSLP_PRESOLVEOPS, XSLP_REFORMULATE

Parent Topic Integer control parameters

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