SPARSEITERMETHOD

Description Type Default

Iterative solver preconditioner method:

  • ITERATIVE - Selects the iterative solver. This method uses less memory and may be faster for solid models. If a modal solution is being performed and field 6 on the EIGRL entry is blank, the iterative solver will be used during Lanczos extraction.
  • DIRECT - Selects the direct sparse solver. This method may be faster if the model contains large numbers of RBEi elements or MPC equations and/or has elements that are irregularly shaped. If a modal solution is being performed and field 6 on the EIGRL entry is blank, the direct solver will be used during Lanczos extraction.
  • PRIMAL - Selects the primal solver. This solver is similar to the ITERATIVE solver but may require less iterations for models that contain elements with high initial distortion.
  • AUTO - Selects the fastest method based on available memory and element type.

This parameter is only applicable to the PCGLSS iterative solver.

ITERATIVE/

DIRECT/

PRIMAL/

AUTO

AUTO