Difference between revisions of "Fluent/Batch"
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bsub [LSF options] "fluent [fluent options] -i my_journal_file.jou" | bsub [LSF options] "fluent [fluent options] -i my_journal_file.jou" | ||
| − | Here you need to replace ''[LSF options]'' with LSF parameters for the resource requirements of the job. Please find a documentation about the parameters of <tt>bsub</tt> | + | Here you need to replace ''[LSF options]'' with LSF parameters for the resource requirements of the job. Please find a documentation about the parameters of <tt>bsub</tt> on the wiki page about the [[Using_the_batch_system|batch system]]. Note that for parallel jobs, it is sufficient to use the '''-n''' option of <tt>bsub</tt>. The batch system will automatically set the fluent parameter for specifying the number of cores, based on the value that you specify for '''-n'''. Please find below some description for the command line parameters, the are in the submission command specified as [fluent options]. |
{|class="wikitable" | {|class="wikitable" | ||
Revision as of 15:37, 29 August 2016
For submitting a fluent job, you need to create a journal file, which contains the commands that fluent should run. You can submit a fluent job for the journal file my_journal_file.jou with the following command.
bsub [LSF options] "fluent [fluent options] -i my_journal_file.jou"
Here you need to replace [LSF options] with LSF parameters for the resource requirements of the job. Please find a documentation about the parameters of bsub on the wiki page about the batch system. Note that for parallel jobs, it is sufficient to use the -n option of bsub. The batch system will automatically set the fluent parameter for specifying the number of cores, based on the value that you specify for -n. Please find below some description for the command line parameters, the are in the submission command specified as [fluent options].
| Parameter | Description |
|---|---|
| -cc | Use the classic color scheme |
| -env | Show environment variables |
| -mesher | Start Ansys Fluent in meshing mode |
| -nm | Don't display mesh after reading it |
| -post | Start the Ansys Fluent post-processing-only executable |
| -rx | Specify realease number |
A typical Fluent job submission could look like the following:
bsub -W 8:00 -R "rusage[mem=2048, scratch=2048]" "fluent 2d -i fluent_case.jou > output.out"
In fluent, you can choose between single and double precision solvers. The choice can be specified via the parameter that indicates if the model is two or three-dimensional. In this example command, ouput is redirected to the file output.out.
| Keyword | Description |
|---|---|
| 2d | two-dimensional model single precision |
| 2ddp | two-dimensional model double precision |
| 3d | three-dimensional model single precision |
| 3ddp | three-dimensional model double precision |
