BwUniCluster2.0/Software/Ansys

Description	Content
module load	cae/ansys
Availability	bwUniCluster | bwGRiD-Tübingen
License	Academic. See: Licensing and Terms-of-Use.
Citing	Citations
Links	Ansys Homepage | Support and Resources
Graphical Interface	Yes

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/

Versions and Availability

A list of versions currently available on all bwHPC-C5-Clusters can be obtained from the

Cluster Information System CIS

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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
cae/ansys/16.2
cae/ansys/17.2
cae/ansys/18.2

The cae/ansys modules are using the KIT license server and is reserved for members of the KIT only.

Usage

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

to load the version 15.0.

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

$ module load cae/ansys

Start commands

To start an ANSYS Mechanical 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.

Examples

ANSYS Mechanical batch jobs

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

#!/bin/bash module load cae/ansys export MPIRUN_OPTIONS="-prot" export MPI_USESRUN=1 cd Arbeitsverzeichnis export MACHINES=`/software/bwhpc/common/cae/ansys_inc150/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

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 -s` echo $run_nodes | sed "s/ /\n/g" > fluent.hosts echo "" >> fluent.hosts ## load ansys module module load cae/ansys module load system/ssh_wrapper/0.1 ## start fluent job time fluent 3d -mpi=intel -g -pib -cnf=fluent.hosts -i test.inp

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

$ msub run_fluent.sh

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 ## load ansys module module load cae/ansys ## setup environment export MPI_USESRUN=1 export CFX5RSH=ssh hostlist=$(srun hostname -s) hostlist=`echo $hostlist| sed 's/ /,/g'` ## start job cfx5solve -def test.def -par-dist $hostlist -start-method 'Intel MPI Local Parallel'

To submit the example script to the queueing system execute:

$ msub run_cfx.sh

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