RESTARTW

I/O Options and Subcase Information Entry The RESTARTW entry can be used in the I/O Options section to define the control parameters for nonlinear restart.

Format

RESTARTW = n, option, path

Example

RESTARTW = 1
RESTARTW = 5, NOCOV
RESTARTW = 5, NOCOV, D:\tmp

Definitions

Argument Options Description
n Integer > 0

No default

 Identifies the frequency of writing nonlinear restart analysis information files.

Restart analysis information files (*.rnl) are written after every n increment(s) and after the last increment for a nonlinear subcase. 1

option COVER, COVE2, NOCOV
COVER (Default)
Whenever a new restart analysis information file (*.rnl) is written, the previous restart analysis information file is removed, unless it was the last frame for a nonlinear subcase.
COVE2
Whenever a new restart analysis information file (*.rnl) is written, the previous restart analysis information file is removed, unless it was either of the last two frames for a nonlinear subcase.
NOCOV
Previous restart analysis information files are not removed.
path <directory path>

Default = Scratch file directory

 Path to the directory where restart files are to be written. 2
Note: This argument is only supported if RESTARTW is specified above and outside the subcase.

Comments

  1. If RESTARTW entry is specified in the model, OptiStruct writes one restart model information file (*.rmd) and one or more restart analysis information files (*.rnl) to be used in a subsequent restart run. The .rnl and .rmd files are named in format <filename>_sub<i>_inc<j>.rnl and <filename>.rmd respectively, where <filename> is the filename of the input deck (prior to .fem), <i> (0<i<100000000) is the corresponding subcase ID and <j> (0<j<10000) is the corresponding increment number in the subcase.
  2. RESTARTW entry can be specified on top of subcases and/or inside subcases. If prescribed both ways, the in-subcase RESTARTW arguments overrides the out-of-subcase RESTARTW arguments except for the path option.
  3. For information on restart of Nonlinear Analysis, refer to Requirements for Restarting in the User Guide.
  4. RESTARTW and RESTARTR entries can be specified together, except for the very first run (that is, the original job that is subsequently restarted), where only RESTARTW is allowed.