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Fluent is a program for modeling fluid flow and heat transfer in complex geometries. It is a product of Fluent Incorporated.

Usage

A sample batch file for running a parallel fluent job on raijin follows:

#!/bin/csh
#PBS -q normal
#PBS -l walltime=00:10:00
#PBS -l ncpus=16
#PBS -l mem=8Gb
#PBS -l software=fluent
#PBS -l wd
module load fluent/19.2
fluent 3ddp -g -t $PBS_NCPUS -i test.jou >& outputfile

Fluent can be run on more than 16 cores but the size of the parallel job is limited by the license availability. To run fluent on multiple nodes, fluent needs to run with MPI. For example, fluent/19.2 works with intel-mpi/2017.3.196 and it is better to explicitly tell fluent to use intel mpi through the command line. A sample batch file follows

#!/bin/csh
#PBS -q normal
#PBS -l walltime=00:10:00
#PBS -l ncpus=32
#PBS -l mem=8Gb
#PBS -l software=fluent
#PBS -l wd
module load fluent/19.2
fluent 3ddp -g -t $PBS_NCPUS -mpi=intel -i test.jou >& outputfile

Restart Jobs

If you need to run Fluent for a very long time we suggest you investigate doing checkpoint/restart to run the one long job as a sequence of shorter self-submitting jobs. Each job writes out restart files which are then used as input to the next job. 

License requirements

The license is for academic usage. Request to join Fluent software group on https://my.nci.org.au. Users from the following institutions have access to their own institution licenses and should join the corresponding software group as well as the general Fluent software group.

UNSW

Staff members of the University of NSW who are part of the unsw_ansys software group can access their own license files to run Fluent. To do this you will need a batch script along the lines of

#!/bin/csh
#PBS -q express
#PBS -l walltime=00:10:00
#PBS -l ncpus=16
#PBS -l mem=32GB
#PBS -l software=unsw_ansys/aa_r=1
#PBS -l wd
module load fluent/18.0
module load unsw-ansys-license
fluent 3ddp -g -t $PBS_NCPUS -i test.jou >& outputfile

The University of Sydney

Staff members of the University of Sydney who are part of the ansys_usyd software group can access their own license files to run Fluent. To do this you will need a batch script along the lines of

#!/bin/csh
#PBS -q express
#PBS -l walltime=00:10:00
#PBS -l ncpus=8
#PBS -l mem=2Gb
#PBS -l software=ansys_usyd
#PBS -l wd
module load fluent/18.0
module load ansys_licence/usyd
fluent 3ddp -g -t $PBS_NCPUS -i test.jou >& outputfile

RMIT

Staff members of RMIT who are part of the ansys_rmit software group can access their own license files to run Fluent. To do this you will need a batch script along the lines of

#!/bin/csh
#PBS -q express
#PBS -l walltime=00:10:00
#PBS -l ncpus=8
#PBS -l mem=2Gb
#PBS -l software=ansys_rmit
#PBS -l wd
module load fluent/18.0
module load ansys_licence/rmit
fluent 3ddp -g -t $PBS_NCPUS -i test.jou >& outputfile

University of Wollongong

Staff members of UoW who are part of the ansys_wollongong software group can access their own license files to run Fluent. To do this you will need a batch script along the lines of

#!/bin/csh
#PBS -q express
#PBS -l walltime=00:10:00
#PBS -l ncpus=8
#PBS -l mem=2Gb
#PBS -l software=ansys_wollongong
#PBS -l wd
module load fluent/18.0
module load ansys_licence/wollongong
fluent 3ddp -g -t $PBS_NCPUS -i test.jou >& outputfile