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A Package for Computational Fluid Dynamics Simulations |
General Information
The ANSYS software package is developed and distributed by ANSYS, Inc..
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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
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The module name is |
Example Jobscripts
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Important: Always add |
This allows for the batch system to start the job only, when the appropriate number of licenses is available.
You can check the availability yourself: scontrol show lic
aa_t_a
is a "ANSYS Academic Teaching License" with a maximum of 16 tasks.aa_r
is a "ANSYS Academic Research License" with 16 inclusive tasks. Research jobs with more than 16 tasks cost additional "aa_r_hpc
" licenses.
The use of Ansys is restricted to members of the ansys
user group. You can apply to become a group member at support[at]hlrn.de
Please note: Our licenses are restricted to students, PhD students, teachers and trainers of public institutions. They cannot be used in projects that are financed by industrial partners
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Computational fluid dynamics solver focused on turbo-machinery (vertex-centered FVM) |
General Information
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To obtain and checkout a product license please read Ansys Suite first. |
Documentation and Tutorials
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Besides the official documentation and tutorials (see Ansys Suite), another alternative source is: https://cfd.ninja/tutorials |
Example Jobscripts
Example input files e.g. StaticMixer.def can be found at $CFXROOT/examples (after loading the Ansys module).
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#!/bin/bash #SBATCH -t 00:10:00 #SBATCH --nodes=2 #SBATCH --ntasks-per-node=4096 #SBATCH -L ansys:80 ### Important: match number to (nodes)*(tasks-per-node) #SBATCH -p medium40standard96:test #SBATCH --mail-type=ALL #SBATCH --job-name=StaticMixer module load ansys/2019r22023r2 # also supported by & successfully tested with: # ml ansys/2023r1 # ml ansys/2022r2 source $ANSYSLIC_DIR/cfx5solve_redef_with_student_lic ## create list of hosts in calculation srun hostname -s > hostlist.$SLURM_JOB_ID ## format the host list for cfx cfxhostlist=`tr '\n' ',' < hostlist.$SLURM_JOB_ID` echo $cfxhostlist # start the solver cfx5solve -def StaticMixer.def -start-method "Intel MPI Distributed Parallel" \ -double -affinity "explicit" -par-dist "$cfxhostlist" echo '#################### CFX finished ############' sleep 2 rm hostlist.$SLURM_JOB_ID |
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#!/bin/bash #SBATCH --time=01:00:00 #SBATCH --nodes=1 #SBATCH --ntasks-per-node=16 #SBATCH --licenses=ansys:16 # match number to nodes*ntasks-per-node #SBATCH --partition=standard96:test #SBATCH --job-name=testjob hostlist_per_cfx5solve=$SLURM_JOB_NODELIST"*8" echo "hostlist_per_cfx5solve "$hostlist_per_cfx5solve module load ansys/2020r2 # cfx5solve -help # start the solver cfx5solve -def StaticMixerA.def -start-method "Intel MPI Distributed Parallel" \ -double -par-dist "$hostlist_per_cfx5solve" -name $SLURM_JOB_NAME.$SLURM_JOB_ID.a & echo "first cfx5solve is running in background" cfx5solve -def StaticMixerB.def -start-method "Intel MPI Distributed Parallel" \ -double -affinity "explicit" -par-dist "$hostlist_per_cfx5solve" -name $SLURM_JOB_NAME.$SLURM_JOB_ID.b # wait for all children processes (background jobs) to finish wait echo '#################### CFX finished ############' |
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