Configuring the Execution Options

You can edit the execution options for each simulation activity in the selected simulation process.

See Also
Viewing the Properties of a Simulation Process
Viewing the Input To and Output From a Simulation Process
  1. To view and edit the execution options for the selected simulation process, select Properties from the Details panel.
  2. From the Properties page that appears, select .

    Execution options appear for the simulation process and for each simulation activity in the simulation process.

  3. From the Execution Options dialog box that appears, click the Execution tab and edit the options as required. The available options depend on the content of the simulation process or activity, such as the type of adapter. In addition, when the simulation expert creates a simulation template, they can specify which execution options are visible to the user that is instantiating the template. In general, the following execution options are available for simulation activities:
    OptionDescription
    Job Title The title of the job that will run.
    Job Description A description of the job that will run.
    Log Level The level at which messages are logged.
    Cleanup Choose whether to keep the files that the activity creates in the execution directory. If you choose to remove the files, Performance Study deletes all files, folders, and subfolders in the execution directory.
    Skip this Activity Choose whether or not to run this activity.
    Maximum Run Time Specify a limit (in seconds of wall-clock time) after which execution of the simulation activity will be terminated. In most cases you should accept the default value of 0, meaning no time limit is enforced. However, if you are concerned the simulation activity will encounter issues that will not allow it to complete, you should specify a value that is much longer than the expected execution time (to prevent incorrect termination of the activity).
    Performance Study saves the changes to the execution options while you are working.
  4. Click the Affinities tab and edit the options for individual activities. If you enter an affinity, your job will be dispatched only to 3DOrchestrate Stations that have this affinity (as configured by your system administrator). For example, you could have a 3DOrchestrate Station that is used to run Nastran that has been given a custom affinity of Nastran. In general, the following affinities are available for simulation activities:
    OptionDescription
    Location

    You use the Location affinity to specify the working directory. When the simulation activity runs, Process Composer generates output in a directory below the default working directory, where the name of the directory is prefixed by the location group that you entered.

    Simulation activities with the same location group will run on the same 3DOrchestrate Station and generate output in the same directory (under the working directory). Conversely, activities with different location groups will generate output in different directories and can run on different 3DOrchestrate Stations, provided there are no other affinities forcing them to use the same station.

    If your organization has access, you can select Cloud to run compatible activities on the Dassault Systèmes cloud. See Adapters Supported for Cloud Execution in the Optimization Process Composer or Automation Process Composer User's Guide for more information.

    Operating System Windows or Unix. Linux is considered a subset of UNIX in this classification.
    Station Name The default 3DOrchestrate Station name is the hostname of the computer on which the station is installed.
    Custom

    You can enter an expression that refers to a parameter in the Custom affinities field; for example, ${PARAMETER[Parameter Name]}. By default, a 3DOrchestrate Station has no custom affinities.

  5. In addition, you can set specific LSF requirements for a simulation process when the simulation job is dispatched with LSF DRM. The settings affect the LSF job used to dispatch the work item at run time.
    OptionDescription
    Job name Specify the name of the LSF job. Refer to the bsub "-N" option on the bsub man page for more information.
    Job group Specify the group name. Refer to the bsub "-g" option on the bsub man page for more information.
    Hosts Specify the hosts that can run this work item. Refer to the bsub "-m" option for more information.
    # of CPUs If the activity is part of a co-simulation group, the count of the total number of CPUs for that co-simulation group is displayed. If the activity is not part of a co-simulation group, no number is displayed.
    Resources Specify the LSF resources used to dispatch this work item. Refer to the bsub "-R" option on the bsub man page for more information.
    Begin time Specify the minimum start time for this LSF job. Refer to the bsub "-b" option on the bsub man page for more information.
    End time Specify the maximum termination deadline for this job. Refer to the bsub "-t" option on the bsub man page for more information.
    Run time limit Specify the amount of time the job should run before ending.
    Additional bsub arguments Specify any additional arguments to bsub for this work item, supplied to bsub exactly as entered here. Refer to the bsub man page for more information on the additional arguments that are available.
    Exclusive execution For function adapters, select this option to run only this adapter on a 3DOrchestrate Station during execution. This option can be useful because function adapters are often used to drive commercial or proprietary application programs that require a large amount of main storage. Occasionally, these programs require so much storage that it is not feasible to run more than one adapter at a time on any given 3DOrchestrate Station. When a selected adapter is run on a station, no other adapter will run on that station, giving the adapter's application program maximum access to the station's resources.

    Alternatively, your company may have configured a third-party DRM system, such as LSF, PBS Professional, or Windows HPC, with its options listed here. Ask your system administrator about the custom DRM options in this dialog box. See 3DOrchestrate - Installation and Administration: Distributed Resource Management: Scripted DRM Customization for more information.

  6. Click Ok to close the Execution Options dialog box.