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Crash Simulation Software - finite element and multiphysics program to analyse the nonlinear response of structures

General Information

To obtain and checkout a product license please read Ansys Suite first. LS-DYNA specific support is provided by www.dynasupport.com.


executable / flagmeaning
lsdyna(without flags) single precision, shared memory parallel
-dpdouble precision
-mpp -dis -np 96

distributed memory parallel on single 96-core-node

-mpp -dis -machines 1st_node_name:96:2nd_node_name:96

distributed memory parallel on multiple 96-core-nodes

To explore other settings, we recommend starting the general Ansys launcher GUI (command "launcher"). Running the (test) job from this GUI will print out your specialized terminal command. Then you can copy the resulting command/flags to your specific Slurm job script file.

To stop an interactive job press CTRL+C and then "stop"+ENTER.

Example Jobscript

Official examples e.g. a PipeWhip.k can be found at https://www.dynaexamples.com/introduction/Introduction/example-26

This is an example for a massively distributed memory job on 2 nodes with 40 tasks per node
#!/bin/bash
#SBATCH -t 00:10:00
#SBATCH --nodes=2
#SBATCH --tasks-per-node=96
#SBATCH -L ansys
#SBATCH -p standard96:test
#SBATCH --job-name=Whip

# format the machinelist
srun hostname -s | uniq -c | awk '{printf $2":"$1":"}' > hostlist
machinelist=`cat hostlist`

module add ansys/2023r1

lsdyna i=ex_26_thin_shell_elform_16.k -dp -mpp -dis -machines $machinelist

echo "############### ANSYS LS-DYNA finished ################"
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