Restart Limit

Type : Integer

Range : {0 .. 3}

Default : 3

This option sets the maximal number of restarts that PATH should make if it could not find a feasible solution. PATH first tries to find a feasible solution with the current settings of the options. If PATH fails it restarts the solving process by using different kind of option settings. The option settings corresponding to the restart numbers are given in the following table, where “residual” denotes a measure of how far the initial point (given to PATH) is from satisfying the complementarity conditions.

Restart number

Option name

Option value

1

Initial Perturbation

0.01 * residual

NMS Initial Reference Factor

2.0

Crash Method

None

2

Initial Perturbation

0.0

NMS m-Step Frequency

1

NMS Initial Reference Factor

10.0

NMS Merit Function Values Storage

2

Crash Method

None

3

Gradient Search Type

Arc

Initial Perturbation

0.0

NMS Initial Reference Factor

2.0

NMS Search Type

Arc

Crash Method

Pnewton

Crash Method Search Type

Arc

Maximal Number of Basis Changes

10

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