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

Support and Examples

LS-DYNA specific support is provided by www.dynasupport.com
For official examples visit: www.dynaexamples.com

General Information

To obtain and checkout a product license please read Ansys Suite first.

executable / flag	meaning
lsdyna	(without flags) single precision, shared memory parallel
-dp	double 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 the general Ansys launcher GUI (start an interactive job as described in Usage Guide, call "launcher" on compute node after loading the Ansys module). 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 LS-DYNA job press CTRL+C and then "stop"+ENTER.

Example Jobscript

The underlying input file PipeWhip.k can be found at www.dynaexamples.com/introduction/Introduction/example-26

This is an example for a distributed memory job on 2 nodes with 96 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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