Initializing help system before first use

PRESOLVEOPS

Description
This bit vevctor control specifies the operations which are performed during the presolve.
Type
Integer
Values
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.
14 
Linearly dependant row removal.
15 
No integer variable and SOS detection.
Default value
511 (bits 0 — 8 incl. are set)
Affects routines
XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE), XPRSpresolverow.
See also
Working with Presolve, PRESOLVE, MIPPRESOLVE.

Parent Topic Control Parameters

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