Software - Fluent13.0

Fluent Job Submission:

For fluent there is no graphical user interface provided
You must submit your job in batch mode using qsub
Linux script is provided and you may change source file name and output file name

You can change number of processors and number of nodes according to your need

your script begins here

#!/bin/sh
#name the program, your default output error file are Test_fluent.oJobid
#and Test_fluent.eJobid
#PBS -N Test_fluent
#follwing 2 lines ensures that you'll be notified by email when your job is done
#PBS -M your_user_id@tigermail.auburn.edu
#PBS -m e
#you are asking for 4 node 8 processor each, 32 processor as a total for 50hrs
#after 50 hours your job will be killed
#PBS -l nodes=4:ppn=8,walltime=50:00:00
#your directory path can be obtained by pwd
#PBS -d /home/your_dirctory_path/
#loading variables do not change this
export PATH=/export/apps/ansys_inc/v130/fluent/bin:$PATH
export FLUENT_ARCH=lnamd64
export NO_LOCAL=1
#writing mpd_nodes to boot mpd in these nodes and conf_file to select processors
`sort -u $PBS_NODEFILE > mpd_nodes`
#assignin nhosts variable to number of nodes
nhosts=`cat mpd_nodes | wc -l`
#generating conf_file to select processors
`sort $PBS_NODEFILE > conf_file`
proc=`cat conf_file | wc -l`
#printing initial timestamp
date > fluent.out
#printing which host performed computation
/bin/hostname >> fluent.out
#booting mpd on the selected nodes
#mpdboot -n $nhosts -v -f mpd_nodes
#if you want to use intel as communication port the use -mpi=intel, also uncomment mpdboot and mpdallexit, by default you can use hp and leave it unchanged
#executing fluent with 64 processor providing mpich communication connector
#and conf_file as config file and i=source_file >> writing_to_output_file
fluent 3ddp -g -t$proc -mpi=hp -cnf=conf_file -i fluent.jou >> fluent.out
#end time stamp
date >> fluent.out
#stop mpd
#mpdallexit

end of your script

Create a directory using "mkdir testing"
Go to that directory using "cd testing"
Write a script file in vi editor similar to these
Make sure it is executable by "chmod 744 file_name.sh"
Submit the job using "qsub ./file_name.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)

Running two or more fluent job simultaneously (if you are using -mpi=intel):