Software - starccm+

Running starccm+:

For starccm+ you can either use GUI mode or batch mode
To open starccm+ in GUI mode execute the following three lines in your shell

export PATH=$PATH:/export/apps/starccm/starccm+5.04.008/star/bin
export CDLMD_LICENSE_FILE=1999@perseus.eng.auburn.edu
starccm+ &

or execute the script file run_star.sh like “./run_star.sh &”

Make sure that run_star.sh is executable by “chmod 744 run_star.sh”
Once you open the GUI, you can set your parameters, generate mesh/sim files
To execute the sim files for long time simulatation, you need to submit it in batch mode
To run simulation in batch mode you can download and run the following script to load environmental variable and path, you might change the source/output file name
You can change number of processors and number of nodes according to your need
We have 128 parallel licenses for starccm+, so you can not ask for more than 128, typically the number processor/licenses you’ll request should be 10-60

star_batch.sh

#! /bin/bash
#name the program
#PBS -N testing_starccm

#following 2 line ensures you'll be notified by email when the job is done
#replace <..> and write your au user id
#PBS -M <au_user_id>@auburn.edu
#PBS -m e

#your current directory path that can be obtained by "pwd"
#PBS -d /home/au_user_id/star_test/

#asking for 4 nodes, 10 proc each, 40 proc as total for 50 hrs
#PBS -l nodes=4:ppn=10,walltime=50:00:00

#your default output/error file name
#PBS -o default_out
#PBS -e default_error

#do not change this, setting paths and license
export PATH=$PATH:/export/apps/starccm/starccm+5.04.008/star/bin
export CDLMD_LICENSE_FILE=1999@perseus.eng.auburn.edu

#generating mpd_nodes that contains host name and proc list
`sort $PBS_NODEFILE > mpd_nodes`

#assigning variable proc to number of processor counted from mpd_nodes
proc=`cat mpd_nodes | wc -l`

#initial timestamp
date > <yout_output_filename>
#replace <..> and write your output file name

#replace <souce....> with you source file name
starccm+ -batch -np $proc -mppflags "-prot" -machinefile mpd_nodes <source_file.sim> >> <your_output_filename>

#end timestamp
#<..> replace with your output file name
date>> <our_output_filename>

Create a directory using “mkdir star_test”
Go to that directory using “cd star_test”
Write a script file in vi editor similar to above or download it and place it in star_run directory
Make sure it is executable by “chmod 744 star_batch.sh”
Submit the job using “qsub ./star_batch.sh”
Give a “showq” to see if your job is running
You can terminate the session using “exit” but your job will be running and you can check back the results after 1-2 days whenever your job is done (you’ll also be notified by email)

For details please visit the following websites:

http://www.cd-adapco.com/products/STAR-CCM_plus/

http://www.computationalfluids.com/

http://www.cd-adapco.com/applications/index.html

Tutorials and user guide are located at following directory in cluster

/export/apps/starccm/starccm+5.04.008/doc

Last Updated: Feb 09, 2011