Job Options
Job options
Input File
Enter the name of the analysis file into the box provided. Jobs may be specified in any directory by entering either the full pathname of the input file or the pathname relative to the current directory. If the input file format is set to Keyword it will be assumed that the filename ends in '.key', otherwise it will be assumed that the filename ends in '.inf'. To search for the file, click on the icon to the left of the Jobname box. This will bring up a standard file selector box shown below.
The default search pattern will be set to '*.key' if the input file format is set to Keyword, '*.inf' if it is set to Fixed and '*.lst' if it is set to List.
Files can also be selected using the dropdown to the input file field. It has a list of all the recent Ansys LS-DYNA jobs that were submitted.
Input File Format
The input file format may be altered between Keyword and Fixed and List.
If the List option is chosen a file containing a list of Ansys LS-DYNA models can be selected for submitting to Ansys LS-DYNA. The List file can contain either just a list of LS-DYNA models or it can also contain additional information for running REPORTER automatically after the analysis terminates. (see LIST File Format for details on the List file format).
All of the jobs can be submitted either sequentially or simultaneously .
Select Files To Run
If the input file format is set to List then a subset of the models listed in the file can be selected to be run when the List file is submitted.
Sequential Job Submission
If a list of Ansys LS-DYNA jobs is submitted using the List option then they can either be submitted sequentially one after the other or they can all be submitted simultaneously.
Number of CPUs
This option will only be accessible if your system supports parallel versions of Ansys LS-DYNA. The required number of processors to run the job on can be selected using the arrow buttons. The maximum number of processors that can be selected is controlled through the 'oa_pref' file (see section 2.3)
The value selected will override the number of processors selected on the *CONTROL_PARALLEL card in the input deck.
MEMORY Limit
The Analysis Memory Limit can be entered directly in the space provided. The units used to define the Memory Limit can be switched between Words and Megawords and Automatic using the available toggle. The value entered is the size of the main array declared internally within Ansys LS-DYNA that is used to store data in.
A value of "0" means that the analysis will use the default value built into Ansys LS-DYNA. If a value is specified on the *KEYWORD card in a input deck then that value will override all other memory definitions.
MEMORY2 (MPP/HYBRID only)
This option is only available for the MPP/HYBRID version of Ansys LS-DYNA. With the MPP/HYBRID versions of Ansys LS-DYNA more memory is required for the first CPU that initialises the model than for the other processors. Generally if the first CPU requires X words of memory to initialise the job then the amount of memory required for each additional processor is X/n where n is the total number of CPU's.
Consistency Flag
This option controls whether parallel analyses are run with the accuracy option in Ansys LS-DYNA turned ON or OFF. The default is to turn the accuracy option ON which results in nearly identical results across different numbers of CPU's but a lower overall speedup in the job time.
The value selected will override that selected on the *CONTROL_PARALLEL card.
Automatically Increase Memory If Required
If this option is selected then Ansys LS-DYNA will automatically increase the amount of memory it uses if the amount specified by MEMORY LIMIT is insufficient.
CPU limit
The Analysis CPU Limit can be entered directly in the space provided. The units used to define the CPU limit can be switched between Seconds, Minutes and Hours by using the toggle available. The value entered is the actual amount of CPU time that Ansys LS-DYNA will use for the analysis. When this limit is reached Ansys LS-DYNA will terminate the job. A value of "0" means that no limit has been set and the job will run to termination.