NLINSOLACCEL

Description Type Default

Nonlinear solver iteration acceleration option. Controls nonlinear iteration acceleration, damping, and line search algorithms. There are six options:

  • 0 - No acceleration, damping, or line search controls (OFF).
  • 1 - Damping only.
  • 2 - Line search only.
  • 3 - Acceleration, damping, and line search controls.
  • 4 - Acceleration and damping only (ON).
  • AUTO - This setting will use a value of 3 for cavity radiation models or models where line search is turned on. In all other situations it will use a value of 4.

See the NLPARM Bulk Data entry in Section 4, Bulk Data, for additional line search parameters.

0 ≤ Integer ≤ 4

ON/OFF

4