PRESOLVEOPS

This bit vevctor control specifies the operations which are performed during the presolve.

Integer

Bit	Meaning
0	Singleton column removal.
1	Singleton row removal.
2	Forcing row removal.
3	Dual reductions.
4	Redundant row removal.
5	Duplicate column removal.
6	Duplicate row removal.
7	Strong dual reductions.
8	Variable eliminations.
9	No IP reductions.
10	No semi-continuous variable detection.
11	No advanced IP reductions.
12	No eliminations on integers.
14	Linearly dependant row removal.
15	No integer variable and SOS detection.

511 (bits 0 — 8 incl. are set)

XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE), XPRSpresolverow.

Working with Presolve, PRESOLVE, MIPPRESOLVE.