Initializing help system before first use

# CHOLESKYALG

Description | Newton barrier: type of Cholesky factorization used; bit-vector-control (see Section Bit-vector controls).
Type | Integer
Topic areas | Barrier, Bit-vector
Values |
Bit | Meaning
0 | matrix blocking: 0: automatic setting; 1: manual setting.
1 | if manual selection of matrix blocking: 0: multi-pass; 1: single-pass.
2 | nonseparable QP relaxation: 0: off; 1: on.
3 | corrector weight: 0: automatic setting; 1: manual setting.
4 | if manual selection of corrector weight: 0: off; 1: on.
5 | refinement: 0: automatic setting; 1: manual setting.
6 | preconditioned conjugate gradient method (PCGM): 0: PCGM off; 1: PCGM on.
7 | Preconditioned quasi minimal residual (QMR) to refine solution: 0: QMR off; 1: QMR on.
8 | Perform refinement on the augmented system 0: off; 1: on.
9 | Force highest accuracy in refinement 0: off; 1: on.
Default value | -1
Note | If the value of the control is set to -1 (default) then the solver will automatically select the bits it deems most useful.
Affects routines | XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE).
Category | Control

Parent Topic Control Parameters

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