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LSDYNA

LSDYNA is an explicit three-dimensional, finite-element code for analyzing the large deformation dynamic response of inelastic solids and structures. LSDYNA is one of the codes developed at Livermore Software Technology Corporation (LSTC).

Version

Version 971_7600.2.398 is currently available at OSC.

Availability

LSDYNA is available on the Glenn Cluster and the BALE Cluster.

Usage

To use LSDYNA for academic purposes, you must be validated for such use. To do that, you should obtain, complete, and return "Academic Agreement to Use the LSTC Codes." This can be obtained from your site consultant or from OSC.

Only the parallel version of LS-DYNA is currently supported. To use the software, you need to load one of the following modules:

Glenn (IBM 1350) Linux cluster:

mpp971_s_7600 (parallel version - single precision)
mpp971_d_7600 (parallel version - double precision)

To execute a multi processor run (nodes *must* be 2 or greater; single processor runs are not supported at this time):

1) move your input file to a directory on Glenn (pipe.dyna in the example below)
2) create a batch script like the following

file ibm_4processor.job
==============================================
#PBS -N plate_test
#PBS -l walltime=5:00:00
#PBS -l nodes=1:ppn=4
#PBS -j oe
#PBS -S /bin/csh
set echo on
hostname
# The following lines set up the LSDYNA environment
module load mpp971_s_7600
#
# Move to the directory where the job was submitted from
#
cd $PBS_O_WORKDIR
pwd
#
# Create the pfile which describes the local and global
# file directories
#
cp /dev/null pfile
echo "dir { global $PBS_O_WORKDIR local $TMPDIR }" > pfile
echo "general { nodump }" | cat >> pfile
#
# Run LSDYNA (number of cpus > 1)
#
mpiexec $LSTC_HOME/lsdyna I=pipe.dyna p=pfile
==============================================

Next, submit this job to the batch queue with the command:

qsub ibm_4processor.job

And when the job is finished, all d3plot and other data files will be located in the directory where you typed 'qsub'.

Documentation

On-line documentation is provided as news items and as the following PDF files:

LS-DYNA User's Manual (Structural version)
LS-DYNA User's Manual (Keyword version)
LS-DYNA Theory Manual
LS-INGRID Examples Manual for Modeling and Mesh Generation
LS-INGRID Graphical User Interface Manual
LS-INGRID User's Manual
LS-POST User's Manual
LS-TAURUS User's Manual