FLUENT is a CFD Simulation application that’s widely used in Mechanical Engineering and Product modeling. Right now, FLUENT 6.3 has been installed in TERA with maximum usage of 20 nodes simultaneously.

Since FLUENT is not a free software,usage of FLUENT is only limited to authorized user. If you want to use FLUENT, please send an e-mail to support@thaigrid.or.th and declare your right or license to use it.

To use FLUENT on TERA, please follow the following step

NOTE: FLUENT 6.3 has been installed at /share/apps/Fluent.Inc on every nodes

Graphical usage of FLUENT

NOTE: Graphical usage of FLUENT is highly discourage! Since this will block other job indefinitely while FLUENT waiting for your input.

• To use FLUENT in graphical mode. Please access TERA via Graphical access.
• Open a terminal session. You may simple right-click and select “Open Terminal”

• First, you need to allow access to your current X-Window session. This can be done easily by

xhost +

• Submit FLUENT job to SGE scheduler. Use the following command to submit FLUENT job to SGE

/share/apps/Fluent.Inc/fluent6.3.26/bin/fluent -sge -sgeq fluent.q -sgepe fluent 1- ...

For example, if you want to submit 20 nodes job in 3D interactive mode.

DISPLAY=10.1.1.1$DISPLAY /share/apps/Fluent.Inc/fluent6.3.26/bin/fluent -sge -sgeq fluent.q -sgepe fluent 1-5 3d

• Fluent will submit the job into SGE queue. Wait until the job run and FLUENT screen will pop on your windows. You can select your input and run anything now.

NOTE:It might takes about 10 minutes to start GUI of Fluent. Please be patient

From the image above. You can see that Fluent in the back is run on 20 nodes.

Command-line usage of FLUENT

The usage is basically the same as graphical mode. Instead, you need to supply every command line option to fluent on job submission.

• Log-in to TERA via SSH
• Create FLUENT journal file to be used as input file for the job. For example,

file/read-case INPUT.cas
solve/iterate 5
file/write-case-data OUTPUT.cas
exit
yes

From the above example, we’re trying to submit a job which use INPUT.cas and INPUT.data as input CASE and Data, run the job for 5 iterations, and write output CASE and DATA to OUTPUT.cas and OUTPUT.data

• Submit your Fluent job to SGE

/share/apps/Fluent.Inc/fluent6.3.26/bin/fluent -sge -sgeq fluent.q -sgepe fluent -g 1-20 3d -i path_to_your_journal_file.jou

• Output file will be placed in current working directory where you submit the job.