Initializing help system before first use

BARREGULARIZE

Description
This bit-vector control (see Section Bit-vector controls) determines how the barrier algorithm applies regularization on the KKT system.
Type
Integer
Topic areas
Barrier, Bit-vector
Values
Bit
Meaning
0 
Standard regularization is turned on/off.
1 
Reduced regularization is turned on/off. This option reduces the perturbation effect of the standard regularization.
2 
Forces to keep dependent rows in the KKT system.
3 
Forces to preserve degenerate rows in the KKT system.
4 
Restrict regularization to infeasible iterates.
5 
Disable iterative regularizations.
6 
Apply iterative regularization more often.
Default value
-1
Note
The parameter is a bit set but value -1 (the default value) is treated in a special way: if the parameter is set to -1 then the solver will automatically select the bits it deems most useful.
Affects routines
XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE), XPRSminim ( MINIM), XPRSmaxim ( MAXIM).
Category
Control

Parent Topic Control Parameters

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