XKTR_PARAM_BAR_MURULE

Description

Indicates which strategy to use for modifying the barrier parameter mu in the barrier algorithms.

Type

Integer

Values

0	(auto) Let Knitro automatically choose the strategy.
1	(monotone) Monotonically decrease the barrier parameter. Available for both barrier algorithms.
2	(adaptive) Use an adaptive rule based on the complementarity gap to determine the value of the barrier parameter. Available for both barrier algorithms.
3	(probing) Use a probing (affine-scaling) step to dynamically determine the barrier parameter. Available only for the Interior/Direct algorithm.
4	(dampmpc) Use a Mehrotra predictor-corrector type rule to determine the barrier parameter, with safeguards on the corrector step. Available only for the Interior/Direct algorithm.
5	(fullmpc) Use a Mehrotra predictor-corrector type rule to determine the barrier parameter, without safeguards on the corrector step. Available only for the Interior/Direct algorithm.
6	(quality) Minimize a quality function at each iteration to determine the barrier parameter. Available only for the Interior/Direct algorithm.

Default value

Note

Not all strategies are available for both barrier algorithms. This option has no effect on the Active Set algorithm.