BwUniCluster2.0/Software/Ansys: Difference between revisions
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{{Softwarepage|cae/ansys}} |
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| module load |
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| cae/ansys |
| cae/ansys |
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| Availability |
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| [[bwUniCluster]] | bwGRiD-Tübingen |
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| License |
| License |
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= Versions and Availability = |
= Versions and Availability = |
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A list of versions currently available on all bwHPC-C5-Clusters can be obtained from the |
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<br> |
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<big> |
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[https://cis-hpc.uni-konstanz.de/prod.cis/ Cluster Information System CIS] |
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</big> |
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{{#widget:Iframe |
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|url=https://cis-hpc.uni-konstanz.de/prod.cis/bwUniCluster/cae/ansys |
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|width=99% |
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|height=350 |
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|border=0 |
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}} |
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<br> |
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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 |
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<pre> |
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$ module avail cae/ansys |
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-------------------------- /opt/bwhpc/kit/modulefiles -------------------------- |
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cae/ansys/15.0 |
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cae/ansys/16.2 |
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cae/ansys/17.2 |
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cae/ansys/18.2 |
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</pre> |
</pre> |
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The cae/ansys modules are using the KIT license server and |
The cae/ansys modules are using the KIT license server and are reserved for members of the KIT only. |
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<br> |
<br> |
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= Usage = |
= Usage = |
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== |
== ANSYS Fluent batch jobs == |
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The execution of FLUENT can also be carried out using a shell script. Below is an example of a shell script named <code>run_fluent.sh</code> that starts a FLUENT calculation in parallel on two nodes with 40 processors each on the bwUniCluster: |
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If you wish to load a specific version of ANSYS you can do so by executing e.g.: |
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<pre> |
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1. Using IntelMPI: |
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$ module load cae/ansys/15.0 |
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</pre> |
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to load the version 15.0. |
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You can load the default version of ANSYS with the command: |
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<pre> |
<pre> |
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#!/bin/bash |
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$ module load cae/ansys |
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#SBATCH --nodes=2 |
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</pre> |
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#SBATCH --ntasks-per-node=96 |
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#SBATCH --time=2:00:00 |
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#SBATCH --mem=90gb |
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#SBATCH --partition=cpu |
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module load cae/ansys/2025R2 |
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== Start commands == |
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To start an ANSYS Mechanical session enter |
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source fluentinit |
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<pre> |
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$ ansys150 |
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scontrol show hostname ${SLURM_JOB_NODELIST} > fluent.hosts |
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time fluent 3d -mpi=intel -pib -g -t80 -cnf=fluent.hosts -i test.inp |
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</pre> |
</pre> |
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To launch an ANSYS FLUENT session enter |
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<pre> |
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$ fluent |
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</pre> |
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The following command is to run the ANSYS Workbench |
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<pre> |
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$ runwb2 |
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</pre> |
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Online documention is available from the help menu or by using the command |
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<pre> |
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$ anshelp150 |
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</pre> |
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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. |
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<br> |
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2. Using OpenMPI: |
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= Examples = |
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== ANSYS Mechanical batch jobs == |
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<pre> |
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The following script could be submitted to the queueing system to run an ANSYS Mechanical job in parallel: |
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{{bwFrameA| |
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<source lang="bash"> |
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#!/bin/bash |
#!/bin/bash |
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#SBATCH --nodes=2 |
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module load cae/ansys |
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#SBATCH --ntasks-per-node=96 |
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export MPIRUN_OPTIONS="-prot" |
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#SBATCH --time=2:00:00 |
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export MPI_USESRUN=1 |
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#SBATCH --mem=90gb |
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cd Arbeitsverzeichnis |
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#SBATCH --partition=cpu |
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export MACHINES=`/software/bwhpc/common/cae/ansys_inc150/scc/machines.pl` |
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ansys150 -dis -b -j lal -machines $MACHINES < input.f18 |
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</source> |
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}} |
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module load cae/ansys/2025R2 |
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working_dir could start with $HOME or $WORK . |
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source fluentinit |
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To submit the example script to the queueing system execute the following (32 cores, 1 GB of memory per core, max. time 600 seconds) : |
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<pre> |
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scontrol show hostname ${SLURM_JOB_NODELIST} > fluent.hosts |
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msub -l nodes=2:ppn=16,pmem=1000mb,walltime=600 Shell-Script |
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time fluent 3d -mpi=openmpi -g -t80 -cnf=fluent.hosts -i test.inp |
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</pre> |
</pre> |
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To submit the script to the job management system, run: |
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== ANSYS Fluent batch jobs == |
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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: |
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{{bwFrameA| |
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<source lang="bash"> |
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#!/bin/sh |
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#MSUB -l nodes=1:ppn=4 |
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#MSUB -l walltime=0:10:00 |
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#MSUB -l mem=16000mb |
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## setup environment |
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export MPI_USESRUN=1 |
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export run_nodes=`srun hostname -s` |
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echo $run_nodes | sed "s/ /\n/g" > fluent.hosts |
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echo "" >> fluent.hosts |
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module load cae/ansys |
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module load system/ssh_wrapper/0.1 |
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## start fluent job |
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time fluent 3d -mpi=intel -g -pib -cnf=fluent.hosts -i test.inp |
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</source> |
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}} |
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To submit the example script to the queueing system execute the following: |
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<pre> |
<pre> |
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sbatch run_fluent.sh |
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</pre> |
</pre> |
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<br> |
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== ANSYS CFX batch jobs == |
== ANSYS CFX batch jobs == |
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The execution of CFX can also be carried out using a script. Below is an example script <code>run_cfx.sh</code> to start CFX with the start method 'Intel MPI Distributed Parallel': |
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{{bwFrameA| |
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<pre> |
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<source lang="bash"> |
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#!/bin/sh |
#!/bin/sh |
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# |
#SBATCH --nodes=2 |
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#SBATCH --ntasks-per-node=96 |
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#MSUB -l walltime=0:10:00 |
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#SBATCH --partition=cpu |
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#MSUB -l mem=32000mb |
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#SBATCH --time=0:30:00 |
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#SBATCH --mem=90gb |
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module load cae/ansys/2025R2 |
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source cfxinit |
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## load ansys module |
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module load cae/ansys |
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cfx5solve -def test.def -par-dist $hostlist -start-method 'Intel MPI Distributed Parallel' |
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## setup environment |
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</pre> |
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export MPI_USESRUN=1 |
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export CFX5RSH=ssh |
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To submit the script to the job management system, run: |
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hostlist=$(srun hostname -s) |
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hostlist=`echo $hostlist| sed 's/ /,/g'` |
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## start job |
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cfx5solve -def test.def -par-dist $hostlist -start-method 'Intel MPI Local Parallel' |
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</source> |
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}} |
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To submit the example script to the queueing system execute: |
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<pre> |
<pre> |
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sbatch run_cfx.sh |
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</pre> |
</pre> |
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<br> |
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== ANSYS Rocky batch jobs == |
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---- |
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[[Category:Engineering software]][[Category:bwUniCluster]] |
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The execution of Rocky DEM can also be carried out using a script. Below is an example script <code>run_rocky.sh</code> to run a Rocky DEM simulation on a GPU node: |
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<pre> |
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#!/bin/bash |
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#SBATCH --output=rocky_job_%j.out |
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#SBATCH --job-name=rocky_job |
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#SBATCH --partition=gpu_a100_short # GPU patition |
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#SBATCH --nodes=1 |
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#SBATCH --gpus-per-node=1 |
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#SBATCH --mem=30000 # Total memory (MB) |
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#SBATCH --time=00:30:00 # Time limit (hh:mm:ss) |
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module load cae/ansys/2025R2 |
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# Run Rocky DEM |
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Rocky --simulate "/path/to/Test.rocky" |
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</pre> |
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To submit the script to the job management system, run: |
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<pre> |
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sbatch run_rocky.sh |
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</pre> |
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Latest revision as of 16:36, 19 August 2025
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The main documentation is available on the cluster via |
| Description | Content |
|---|---|
| module load | cae/ansys |
| 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
The cae/ansys modules are using the KIT license server and are reserved for members of the KIT only.
Usage
ANSYS Fluent batch jobs
The execution of FLUENT can also be carried out using a shell script. Below is an example of a shell script named run_fluent.sh that starts a FLUENT calculation in parallel on two nodes with 40 processors each on the bwUniCluster:
1. Using IntelMPI:
#!/bin/bash
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=96
#SBATCH --time=2:00:00
#SBATCH --mem=90gb
#SBATCH --partition=cpu
module load cae/ansys/2025R2
source fluentinit
scontrol show hostname ${SLURM_JOB_NODELIST} > fluent.hosts
time fluent 3d -mpi=intel -pib -g -t80 -cnf=fluent.hosts -i test.inp
2. Using OpenMPI:
#!/bin/bash
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=96
#SBATCH --time=2:00:00
#SBATCH --mem=90gb
#SBATCH --partition=cpu
module load cae/ansys/2025R2
source fluentinit
scontrol show hostname ${SLURM_JOB_NODELIST} > fluent.hosts
time fluent 3d -mpi=openmpi -g -t80 -cnf=fluent.hosts -i test.inp
To submit the script to the job management system, run:
sbatch run_fluent.sh
ANSYS CFX batch jobs
The execution of CFX can also be carried out using a script. Below is an example script run_cfx.sh to start CFX with the start method 'Intel MPI Distributed Parallel':
#!/bin/sh #SBATCH --nodes=2 #SBATCH --ntasks-per-node=96 #SBATCH --partition=cpu #SBATCH --time=0:30:00 #SBATCH --mem=90gb module load cae/ansys/2025R2 source cfxinit cfx5solve -def test.def -par-dist $hostlist -start-method 'Intel MPI Distributed Parallel'
To submit the script to the job management system, run:
sbatch run_cfx.sh
ANSYS Rocky batch jobs
The execution of Rocky DEM can also be carried out using a script. Below is an example script run_rocky.sh to run a Rocky DEM simulation on a GPU node:
#!/bin/bash #SBATCH --output=rocky_job_%j.out #SBATCH --job-name=rocky_job #SBATCH --partition=gpu_a100_short # GPU patition #SBATCH --nodes=1 #SBATCH --gpus-per-node=1 #SBATCH --mem=30000 # Total memory (MB) #SBATCH --time=00:30:00 # Time limit (hh:mm:ss) module load cae/ansys/2025R2 # Run Rocky DEM Rocky --simulate "/path/to/Test.rocky"
To submit the script to the job management system, run:
sbatch run_rocky.sh