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A Package for Computational Fluid Dynamics Simulations

General Information

The ANSYS software package is developed and distributed by ANSYS, Inc..

This documentation describes the specifics of installation and usage of ANSYS at HLRN. Introductory courses for ANSYS as well as courses for special topics are offered by ANSYS Inc. and their regional offices, e.g. in Germany. It is strongly recommended to take at least an introductory course (see the CAD-FEM GmbH homepage).

Details of the HLRN Installation of ANSYS

The ANSYS versions currently installed are

VersionModule FileRemarks
ANSYS 2020 R2ansys/2020r2
ANSYS 2019 R2ansys/2019r2default
ANSYS 19.2ansys/19.2
ANSYS 19.0ansys/19.0

The module name is ansys. Other versions of ANSYS may be installed. Inspect the output of module avail ansys.

Example Jobscripts

Licences

Important: Add such a line to your job script
#SBATCH -L ansys:<number>
where <number> matches nodes * tasks-per-node. This allows for the batch system to start the job only, when the appropriate number of licenses is available.

This is an example for a parallel distributed memory job on 2 nodes with 40 tasks per node
#!/bin/bash
#SBATCH -t 00:10:00
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=40
#SBATCH -L ansys:80 ### Important: match number to (nodes)*(tasks-per-node)
#SBATCH -p medium40:test
#SBATCH --mail-type=ALL
#SBATCH --job-name=StaticMixer

module load ansys/2019r2

## create list of hosts in calculation
srun hostname -s > hostlist.$SLURM_JOB_ID

## format the host list for cfx
cfxhostlist=`tr '\n' ',' < hostlist.$SLURM_JOB_ID`

echo $cfxhostlist

# start the solver
cfx5solve -def StaticMixer.def -start-method "Intel MPI Distributed Parallel"\
-double -par-dist "$cfxhostlist"

echo '#################### CFX finished ############'
sleep 2
rm hostlist.$SLURM_JOB_ID



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