Barrier Refinement

Type

Selection

Range

The settings listed below

Default

Off

This option specifies whether to try to refine the barrier solution for better precision. If enabled, once the optimality conditions are satisfied, Knitro will apply an additional refinement/postsolve phase to try to obtain more precision in the barrier solution. The effect is similar to the effect of enabling the Crossover Iteration Limit, but it is usually much more efficient since it does not involve switching to the Active Set algorithm. Possible values are:

• Off

• On

This option has no effect on the Active Set and SQP algorithms.

Learn more about

• Algorithm

• Crossover Iterations Limit