PARAM, NLINISOL

Bulk Data Entry The optimization process involving nonlinear analysis, in the subsequent optimization iteration the solution of the nonlinear problem.

Parameter Values Description
NLINISOL <YES, NO>
YES (Default)
The optimization process involving nonlinear analysis, in the subsequent optimization iteration the solution of the nonlinear problem will start, when feasible, from the converged nonlinear solution of the previous optimization iteration (instead of repeating the entire incremental nonlinear process). This can save computational time.
NO
The optimization process involving nonlinear solutions, in the subsequent optimization iteration the solution of nonlinear analysis is always repeated from the beginning. The entire incremental nonlinear process is conducted for the analysis.

Comments

  1. This re-using of the previous converged solution is only supported when the nonlinear solution is not path-dependent.