ABAQUS Keywords Reference Manual  

*SOLVER CONTROLS
Specify controls for the iterative linear solver.

This option is used to set the control parameters for the iterative linear equation solver.

Product: ABAQUS/Standard  

Type: History data

Level: Step  

Reference:

Optional parameter:

RESET

Include this parameter to reset all of the solver controls to their default values. The option should have no data lines when this parameter is used.

If this parameter is omitted, only the specified controls will be changed in the current step; the other controls will remain at their settings from previous steps.

Data line to define control parameters: 

First (and only) line:

  1. Relative tolerance for convergence. The default is 10–6.

  2. Maximum number of linear solver iterations. The default is 300.

  3. Number of domains. By default, ABAQUS/Standard will determine the number of domains automatically based on the number of equations in the model. The number of domains must always be greater than or equal to the number of CPUs.