LS-DYNA

Ansys LS-DYNA is the industry-leading explicit simulation software used for applications like drop tests, impact and penetration, smashes and crashes, occupant safety, and more.

More information about LS-DYNA can be found on the Ansys Website.

Running LS-DYNA

Note

More details about using Ansys for the first time and setting license server details can be found on the Ansys page.

Batch job examples

Guidance provided by Oasys suggests that SMP can scale to ~8 cores, and that the MPP version should be used for larger problems.

Remember to replace <port@host> with a suitable value for your license.

SMP Single Precision, 4 cores

#!/bin/bash
#$ -cwd -V
#$ -l h_rt=1:00:00
#$ -l h_vmem=4.8G
#$ -m be
#$ -pe smp 4
module add ansys/2022R1
export ANSYSLMD_LICENSE_FILE=<port@host>
export LSTC_LICENSE=ANSYS
lsdyna I=example.k ncpu=$NSLOTS

SMP Double Precision, 4 cores

#!/bin/bash
#$ -cwd -V
#$ -l h_rt=1:00:00
#$ -l h_vmem=4.8G
#$ -m be
#$ -pe smp 4
module add ansys/2022R1
export ANSYSLMD_LICENSE_FILE=<port@host>
export LSTC_LICENSE=ANSYS
lsdyna -dp I=example.k ncpu=$NSLOTS

MPP Single Precision, on a whole node

#!/bin/bash
#$ -cwd -V
#$ -l h_rt=1:00:00
#$ -m be
#$ -l nodes=1
module add ansys/2022R1
export ANSYSLMD_LICENSE_FILE=<port@host>
export LSTC_LICENSE=ANSYS
lsdyna -dis -np $NSLOTS -lsdynampp I=example.k

MPP Double Precision, on a whole node

#!/bin/bash
#$ -cwd -V
#$ -l h_rt=1:00:00
#$ -m be
#$ -l nodes=1
module add ansys/2022R1
export ANSYSLMD_LICENSE_FILE=<port@host>
export LSTC_LICENSE=ANSYS
lsdyna -dis -np $NSLOTS -lsdynampp -dp I=example.k