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LS-DYNA
=======
[LS-DYNA](http://www.lstc.com/) is a multi-purpose,
explicit and implicit finite element program used to analyze the
nonlinear dynamic response of structures. Its fully automated contact
analysis capability, a wide range of constitutive models to simulate a
whole range of engineering materials (steels, composites, foams,
concrete, etc.), error-checking features and the high scalability have
enabled users worldwide to solve successfully many complex
problems. >Additionally LS-DYNA is extensively used to simulate
impacts on structures from drop tests, underwater shock, explosions or
high-velocity impacts. Explosive forming, process engineering, accident
reconstruction, vehicle dynamics, thermal brake disc analysis or nuclear
safety are further areas in the broad range of possible applications. In
leading-edge research LS-DYNA is used to investigate the behaviour of
materials like composites, ceramics, concrete, or wood. Moreover, it is
used in biomechanics, human modelling, molecular structures, casting,
forging, or virtual testing.
Anselm provides **1 commercial license of LS-DYNA without HPC**
support now.
To run LS-DYNA in batch mode you can utilize/modify the
default lsdyna.pbs script and execute it via the qsub
command.
`
#!/bin/bash
#PBS -l nodes=1:ppn=16
#PBS -q qprod
#PBS -N $USER-LSDYNA-Project
#PBS -A XX-YY-ZZ
#! Mail to user when job terminate or abort
#PBS -m ae
#!change the working directory (default is home directory)
#cd <working directory> (working directory must exists)
WORK_DIR="/scratch/$USER/work"
cd $WORK_DIR
echo Running on host `hostname`
echo Time is `date`
echo Directory is `pwd`
module load lsdyna
/apps/engineering/lsdyna/lsdyna700s i=input.k
`
Header of the pbs file (above) is common and description can be find
on [this
site](../../resource-allocation-and-job-execution/job-submission-and-execution.html).
[SVS FEM](http://www.svsfem.cz) recommends to utilize
sources by keywords: nodes, ppn. These keywords allows to address
directly the number of nodes (computers) and cores (ppn) which will be
utilized in the job. Also the rest of code assumes such structure of
allocated resources.
Working directory has to be created before sending pbs job into the
queue. Input file should be in working directory or full path to input
file has to be specified. Input file has to be defined by common LS-DYNA
.k** file which is attached to the LS-DYNA solver via parameter i=