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LS-DYNA
Description: Suite of programs for transient dynamic finite element program
SHARCNET Package information: see LS-DYNA software page in web portal
Full list of SHARCNET supported software


Introduction

Before a research group can use LSDYNA on sharcnet, a license must be purchased directly from LSTC for the sharcnet license server. Alternately, if a research group resides at a institution that has sharcnet computing hardware (mac, uwo, guelph, waterloo) it maybe possible to use a pre-existing site license hosted on an accessible institutional license server.

Usage

These usage instructions apply to the module based installation of lsdyna found under directory /opt/sharcnet/lsdyna on clusters shown in the Availability Table. To access and use this software you must be a member of the lsdyna group. Users who belong to a licensed department will be given a 5 digit port number. The value should then be inserted into the appropriate departmental export statement before loading the module file as follows:

o UofT Mechanical Engineering Dept 

export LSTC_LICENSE_SERVER=Port-Number@license1.uwo.sharcnet

o McGill Mechanical Engineering Department 

export LSTC_LICENSE_SERVER=Port-Number@license2.uwo.sharcnet

o UW Mechanical and Mechatronics Engineering Dept 

export LSTC_LICENSE_SERVER=Port-Number@license3.uwo.sharcnet

Module Selection

[roberpj@orc-login1:~] module avail lsdyna
 
-------------------------------------- /opt/sharcnet/modules ---------------------------------------
lsdyna/ls971mpp6.0.0 lsdyna/ls971mpp6.1.1 lsdyna/ls971smp6.1.0 lsdyna/ls980mppB1
lsdyna/ls971mpp6.1.0 lsdyna/ls971smp6.0.0 lsdyna/ls971smp6.1.1 lsdyna/ls980smpB1

o For serial or threaded jobs, using ls971 do: 

module load lsdyna/ls971smp6.1.1

o For mpi jobs, using ls971 on saw do: 

module unload intel openmpi lsdyna
module load intel/11.1.069 openmpi/intel/1.5.4 lsdyna/ls971mpp6.1.1

o For mpi jobs, using ls971 on orca and hound do: 

module unload intel openmpi lsdyna
module load intel/11.1.069 openmpi/intel/1.5.5 lsdyna/ls971mpp6.1.1

o For serial or threaded jobs, using version ls980 (and noting for this beta module the restart capability is currently broken) do the following: 

module load lsdyna/ls980smpB1

o For mpi jobs, using version ls980 (and noting for this beta module the restart capability is currently broken) do the following: 

module unload intel openmpi lsdyna
module load intel/12.1.3 openmpi/intel/1.4.5 lsdyna/ls980mppB1

Job Submission

To run the single or double precision solvers specify lsdyna_s or lsdyna_d respectively:

o SUBMIT 1CPU SERIAL JOB 

sqsub -r 1h -q serial -o ofile.%J --mpp=2G lsdyna_d i=airbag.deploy.k ncpu=1

o SUBMIT 4CPU SMP JOB 

sqsub -r 1h -q threaded -n 4 -o ofile.%J --mpp=2G lsdyna_d i=airbag.deploy.k ncpu=4

o SUBMIT 4CPU MPI JOB

Hound or Saw: 

sqsub -r 1h -q mpi -o ofile.%J -n 4 --mpp=2G lsdyna_d i=airbag.deploy.k

Orca: 

sqsub -r 1h -q mpi -o ofile.%J -n 4 --mpp=2G -f opteron lsdyna_d i=airbag.deploy.k

Example Job

STEP1) The following shows sqsub submission of the airbag example to the mpi queue. Its recommended to first edit airbag.deploy.k and change endtim to 3.000E-00 so the job runs long enough to perform the restart in steps 2 and 3 below: 

cp -a /opt/sharcnet/lsdyna/ls971smp6.1.1/examples /work/$USER/test-lsdyna
[to grab /opt/sharcnet/lsdyna/ls971smp6.1.1/examples/misc/airbag]
cd /work/$USER/test-lsdyna/misc/airbag
gunzip airbag.deploy.k.gz
module unload intel openmpi lsdyna
SAW: module load intel/11.1.069 openmpi/intel/1.5.4 lsdyna/ls971mpp6.1.1
ORCA or HOUND: module load intel/11.1.069 openmpi/intel/1.5.5 lsdyna/ls971mpp6.1.1
export LSTC_LICENSE_SERVER=#####@license#.uwo.sharcnet
cp airbag.deploy.k airbag.deploy.restart.k
SAW or HOUND: sqsub -r 1h -q mpi --mpp=2G -n 4 -o ofile.%J lsdyna_d i=airbag.deploy.k
ORCA: sqsub -r 10m -f opteron -q mpi --mpp=2G -n 4 -o ofile.%J  lsdyna_s i=airbag.deploy.k

STEP2) With the job still running, use the echo command as follows to create a file called "D3KIL" that will trigger generation of restart files at which point the file D3KIL itself will be erased. Do this once a day if data loss is critical to you OR once or twice just before the sqsub -r time limit is reached. Further information can be found here http://www.dynasupport.com/tutorial/ls-dyna-users-guide/sense-switch-control: 

echo "sw3" > D3KIL
sqkill job#

STEP3) Before the job can be restarted, the following two lines must be added to the airbag.deploy.restart.k file: 

*CHANGE_CURVE_DEFINITION
         1

STEP4) Now resubmit the job as follows using "r=" to specify the restart file: 

SAW or HOUND: sqsub -r 1h -q mpi --mpp=2G -n 4 -o ofile.%J lsdyna_d i=airbag.deploy.restart.k r=d3dump01
ORCA: sqsub -r 1h -f opteron -q mpi --mpp=2G -n 4 -o ofile.%J lsdyna_d i=airbag.deploy.restart.k r=d3dump01

General Notes

Memory Issues

A minumum of mpp=2G is recommended although the memory requirement of a job may suggest much less is required. For instance setting mpp=1G for the airbag test job above will result in the following error when running a job in the queue: 

--------------------------------------------------------------------------
An attempt to set processor affinity has failed - please check to
ensure that your system supports such functionality. If so, then
this is probably something that should be reported to the OMPI developers.
--------------------------------------------------------------------------

To get an idea of the amount of memory a job used run grep on the output file: 

[roberpj@orc-login1:~/samples/lsdyna/airbag]  cat  ofile.2063302.orc-admin2.orca.sharcnet | grep Memory
     |    Distributed Memory Parallel                  |
 Memory size from command line:      500000,       500000
 Memory for the head node
 Memory installed (MB)        :        32237
 Memory free (MB)             :        11259
 Memory required (MB)         :            0
 Memory required to process keyword     :       458120
 Memory required for decomposition      :       458120
 Memory required to begin solution (memory=      458120 memory2=      230721)
 Max. Memory reqd for implicit sol: max used               0
 Max. Memory reqd for implicit sol: incore                 0
 Max. Memory reqd for implicit sol: oocore                 0
 Memory required to complete solution (memory=      458120 memory2=      230721)

Version Revision

Again run grep on the output file to extract the major and minor revision: 

[roberpj@orc-login1:~/samples/lsdyna/airbag]  cat  ofile.2063302.orc-admin2.orca.sharcnet | grep 'Revision\|Version'
     |  Version : mpp s R6.1.1    Date: 01/02/2013     |
     |  Revision: 78769           Time: 07:43:30       |
     |  SVN Version: 80542                             |

Using lstc_qsun

The available options for the lstc_qrun are given by: 

[roberpj@hnd19:~]  lstc_qrun -help
  o PRINT HELP AND QUIT:                lstc_qrun -help
  o PRINT VERSION INFO AND QUIT:        lstc_qrun -v
  o PRINT SERVER LIST:                  lstc_qrun -i
  o PRINT JOB INFO:                     lstc_qrun [-s server]
  o PRINT LICENSE INFORMATION:          lstc_qrun [-s server] -r
  o PRINT VERBOSE LICENSE INFORMATION:  lstc_qrun [-s server] -R

To check the status of your job in the queue use the sqjobs command. On x86_64 systems you can check whether any of your jobs are queued on the license server use lstc_qrun. Its possible that sqsub will start your job but it will sit idle until enough license are available on the license server and the lstc_qrun command will reveal this: 

[roberpj@hnd19:~] lstc_qrun
Defaulting to server 1 specified by LSTC_LICENSE_SERVER variable
                     Running Programs
    User             Host          Program              Started       # procs
-----------------------------------------------------------------------------
dgierczy    20277@saw61.saw.sharcn LS-DYNA_971      Mon Apr  8 17:44     1
dgierczy     8570@saw32.saw.sharcn LS-DYNA_971      Mon Apr  8 17:44     1
dscronin    25486@hnd6             MPPDYNA_971      Tue Apr  9 20:19     6
dscronin    14897@hnd18            MPPDYNA_971      Tue Apr  9 21:48     6
dscronin    14971@hnd18            MPPDYNA_971      Tue Apr  9 21:48     6
dscronin    15046@hnd18            MPPDYNA_971      Tue Apr  9 21:48     6
dscronin    31237@hnd16            MPPDYNA_971      Tue Apr  9 21:53     6
dscronin    31313@hnd16            MPPDYNA_971      Tue Apr  9 21:54     6
dscronin     6396@hnd15            MPPDYNA_971      Tue Apr  9 21:54     6
csharson    28890@saw175.saw.sharc MPPDYNA_971      Wed Apr 10 16:48     6
 roberpj    11257

At the time of this writing UWO is running on a 4cpu demo license with details: 

[roberpj@hnd19:~] lstc_qrun -R
Defaulting to server 1 specified by LSTC_LICENSE_SERVER variable
**** LICENSE INFORMATION ****
PROGRAM          EXPIRATION CPUS  USED   FREE    MAX | QUEUE
---------------- ----------      ----- ------ ------ | -----
LS-DYNA_971      12/31/2013          -    966   1024 |     0
 dgierczy   20277@saw61.saw.sharcnet   1
 dgierczy    8570@saw32.saw.sharcnet   1
MPPDYNA_971      12/31/2013          -    966   1024 |     0
 dscronin   25486@hnd6               6
 dscronin   14897@hnd18              6
 dscronin   14971@hnd18              6
 dscronin   15046@hnd18              6
 dscronin   31237@hnd16              6
 dscronin   31313@hnd16              6
 dscronin    6396@hnd15              6
 csharson   28890@saw175.saw.sharcnet   6
 roberpj    11257@hnd15              8
                   LICENSE GROUP    58    966   1024 |     0
 
PROGRAM          EXPIRATION CPUS  USED   FREE    MAX | QUEUE
---------------- ----------      ----- ------ ------ | -----
LS-OPT           12/31/2013          0   1024   1024 |     0
                   LICENSE GROUP     0   1024   1024 |     0

Legacy Instructions

The following binaries remain available on saw and orca for backward compatibility testing: 

[roberpj@orc-login2:~] cd /opt/sharcnet/local/lsdyna
[roberpj@orc129:/opt/sharcnet/local/lsdyna] ls ls971*
ls971_d_R3_1    ls971_d_R4_2_1  ls971_s_R3_1    ls971_s_R4_2_1  ls971_s_R5_1_1
ls971_d_R4_2_0  ls971_d_R5_0    ls971_s_R4_2_0  ls971_s_R5_0

There are currently no sharcnet modules for these versions, hence jobs should be submitted as follows: 

module load lsdyna
export PATH=/opt/sharcnet/local/lsdyna:$PATH
export LSTC_LICENSE_SERVER=XXXXX@license3.uwo.sharcnet
cp /opt/sharcnet/local/lsdyna/examples/airbag.deploy.k airbag.deploy.k
SERIAL JOB:  sqsub -q serial -r 1d -o ofile.%J ls971_d_R4_2_1 i=airbag.deploy.k
THREADED JOB:  sqsub -q threaded -n 4 -r 1d -o ofile.%J ls971_d_R4_2_1 ncpu=4 para=2 i=airbag.deploy.k

Note! the ls971_s_R3_1 and ls971_d_R3_1 binaries do not work, a fix is being looked for.

References

o LSTC LS-DYNA Homepage
http://www.lstc.com/lsdyna.htm

o LSTC LS-DYNA Support (Tutorials, HowTos, Faq, Manuals, Release Notes, News, Links)
http://www.dynasupport.com/

o LS-DYNA and d3VIEW Blog
http://blog2.d3view.com/a-few-words-on-memory-settings-in-ls-dyna/

o Convert Words to GB (500000000w=3.73gb,800000000w=5.96gb )
http://deviceanalytics.com/memcalc.php

o LS-DYNA Support Environment variables
http://www.dynasupport.com/howtos/general/environment-variables

o http://www.dynasupport.com/release-notes http://www.dynasupport.com/release-notes

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