Definition of a HPC configuration
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First of all, it is necessary to have a working configuration of the COSSAN working group grid. If one configuration is not yet available, invoke the preference with Window -> Preferences, then click on JobManager and "Add...". The "Edit Grid Configuration" window will appear.
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The fields must be filled as following in order to use the COSSAN working group Oracle Grid Engine grid:
- Grid Engine: Oracle Grid Engine
- <non user-editable settings>
- Job Submission Command: qsub
- Job Deletion Command: qdel
- Job Querying Command: qstat -s a xml
- Grid Querying Command: qhost -q xml
- Parallel Environment List Command: qconf -spl
- Use SSH: leave unticked if using COSSAN-X installed locally on COSSAN working group Oracle Grid Engine server, or tick to use SSH to remotely connect.
Please note that the Oracle Grid Engine commands are available in the machine path, thus can be executed without inserting the full binary path.
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Configure HPC execution in the HPC wizard
After the Simulation wizard is configured, press "Next" instead of "Finish". The HPC wizard will appear.
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- Select one of the available configuration from the drop-down menu in the "Enable High Performance Computing" part of the wizard. Then wait that the grid information are retrieved by the GUI.
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- Click on the "Queue" cell (the cell with default value "Local", NOT the header of the column) to activate the queue drop-down menu. All the queues available, reported in the grid overview, can be selected for job execution. Scroll down in the menu and select the queue "pizzas64.q".
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- Click on the "Host" cell (the cell with default value "Local", NOT the header of the column) to activate the host drop-down menu. All the hosts available in the selected queue are reported in the menu. Select "All" since we don't want to limit the job execution on a specific machine.
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- Click on the "Concurrent" cell (the cell with default value "Infinite", NOT the header of the column) to activate the number of concurrent job specification. It is highly recommended this value to a finite number. Morever, consider the following restrictions, necessary because of the available FE solver licences:
- ABAQUS: don't set a number higher that 5
- ANSYS: don't set a number higher that 4
- NASTRAN: don't set a number higher that 4
- FEAP: no limit to the number of concurrent jobs. However, try to keep it low to avoid grid congestion.
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Performing analysis
Click "Finish" to start the execution of the simulations.
See Also
Beam 3-point bending (overview)
Beam 3-point bending (Presentation)
Beam 3-point bending (Inputs Preparation)
Beam 3-point bending (Evaluator)
Beam 3-point bending (Simulation)
Beam 3-point bending (Reliability)
