Initializing help system before first use

BARSTART

Description
Newton barrier: Controls the computation of the starting point for the barrier algorithm.
Type
Integer
Values
-1 
Uses the available solution for warm-start.
0 
Determine automatically.
1 
Uses simple heuristics to compute the starting point based on the magnitudes of the matrix entries.
2 
Uses the pseudoinverse of the constraint matrix to determine primal and dual initial solutions. Less sensitive to scaling and numerically more robust, but in several case less efficient than 1.
3 
Uses the unit starting point for the homogeneous self-dual barrier algorithm.
Default value
0
Affects routines
XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE).

Parent Topic Control Parameters

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