Checkpoint File

If no changes need to be made to the Engine file, a stopped Radioss simulation can be continued by using a checkpoint file named CHECK_FILE containing the /RERUN/Run Name/Run Number option. The CHECK_FILE can be made using a text editor or by stopping the simulation using the HyperWorks Solver Run Manager, solver control options STOP and CHKPT.

The CHECK_FILE can be created using a text editor by copying the original Engine file to the CHECK_FILE name, changing the /RUN line changed to /RERUN, and deleting all other lines from the file. When using the HyperWorks Solver Manager or Radioss script to restart the solution, the Starter or Engine file can be selected as the input file and use the same input options and number of processors that were defined before and add the -checkpoint option. For example,

radioss -np 4 -checkpoint tensileTest_0000.rad

If running Radioss directly with the executables, the CHECK_FILE should be given as input to the Engine executable.