BwUniCluster2.0/Software/Ansys

Name
module load	cae/ansys
Availability	bwUniCluster
License	academic
Links	Homepage
Graphical Interface	Yes

1 Description

ANSYS is a general purpose software to simulate interactions of all disciplines of physics, structural, fluid dynamics, heat transfer, electromagnetic etc. For more information about ANSYS products please visit http://www.ansys.com/Industries/Academic/

2 Versions and Availability

A current list of the versions available on the bwUniCluster and bwForclusters can be obtained from the Cluster Information System: CIS Information on ANSYS

On the command line interface of a particular bwHPC cluster a list of all available ANSYS versions can be inquired as followed

$ module avail cae/ansys
-------------------------- /opt/bwhpc/kit/modulefiles --------------------------
cae/ansys/15.0

------------------------ /opt/bwhpc/common/modulefiles -------------------------
cae/ansys/15.0_bw

There are two licenses. The module

cae/ansys/15.0_bw

uses the BW license server (25 academic research, 69 parallel processes) and

cae/ansys/15.0

uses the KIT license server (only members of the KIT can use it).

3 Usage

3.1 Loading the Module

If you wish to load a specific version of "ANSYS" you can do so by executing e.g.:

$ module load cae/ansys/15.0_bw

to load the version 15.0 with the BW license.

You can load the default version of ANSYS with the command:

$ module load cae/ansys

3.2 Start commands

To start an ANSYS APDL session enter

$ ansys150

To launch an ANSYS FLUENT session enter

$ fluent

The following command is to run the ANSYS Workbench

$ runwb2

Online documention is available from the help menu or by using the command

$ anshelp150

As with all processes that require more than a few minutes to run, non-trivial ANSYS solver jobs must be submitted to the cluster queueing system.

4 Examples

4.1 ANSYS APDL batch jobs

The following script could be submitted to the queueing system to run an ANSYS APDL job in parallel:

#!/bin/bash module load cae/ansys/15.0_bw export MPIRUN_OPTIONS="-prot" export MPI_USESRUN=1 cd Arbeitsverzeichnis export MACHINES=`/software/bwhpc/kit/cae/ansys_inc15/scc/machines.pl` ansys150 -dis -b -j lal -machines $MACHINES < input.f18

working_dir could start with $HOME or $WORK .

To submit the example script to the queueing system execute the following (32 cores, 1 GB of memory per core, max. time 600 seconds) :

msub -l nodes=2:ppn=16,pmem=1000mb,walltime=600 Shell-Script

4.2 ANSYS Fluent batch jobs

The following script "run_fluent.sh" could be submitted to the queueing system to run an ANSYS Fluent job in parallel using 4 cores on a single node:

#!/bin/sh #MSUB -l nodes=1:ppn=4 #MSUB -l walltime=0:10:00 #MSUB -l mem=16000mb ## setup environment export MPI_USESRUN=1 ## generate hosts list export run_nodes=`srun hostname` echo $run_nodes | sed "s/ /\n/g" > fluent.hosts echo "" >> fluent.hosts ## load ansys module module load cae/ansys ## start fluent job time fluent 3d -g -pib -cnf=fluent.hosts -i test.inp

To submit the example script to the queueing system execute the following:

$ msub run_fluent.sh

4.3 ANSYS CFX batch jobs

With the script "run_cfx.sh" you can submit a CFX job to the queueing system to run in parallel using 8 cores on two node with the start-method 'Platform MPI Parallel':

#!/bin/sh #MSUB -l nodes=2:ppn=4 #MSUB -l walltime=0:10:00 #MSUB -l mem=32000mb ## setup environment export MPI_USESRUN=1 ## load ansys module module load cae/ansys ## start job cfx5solve -def test.def -part 8 -start-method 'Platform MPI Parallel'

To submit the example script to the queueing system execute:

$ msub run_cfx.sh

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