LSF Version 7.3 - Using Platform LSF HPC

◆ When LS-Dyna jobs are restarted from a checkpoint, the job will use the checkpoint
environment instead of the job submission environment. You can restore your job
submission environment if you submit your job with a job script that includes your
environment settings.
◆ LS-Dyna jobs must run in the directory that LSF sets in the LSB_CHKPNT_DIR
environment variable. This lets you submit multiple LS-Dyna jobs from the same
directory but is also required if you are submitting one job. If you submit a job from
a different directory, you must change to the
$LSB_CHKPNT_DIR directory. You
can do this if you submit your jobs with a job script.
To submit LS-Dyna jobs with job submission scripts, embed the LS-Dyna job in the job
script. Use the following format to run the script:
% bsub < jobscript
Inside your job scripts, the syntax for the bsub command to submit an LS-Dyna job is
either of the following:
[-R ls_dyna] -k "checkpoint_dir method=ls_dyna" | -k "checkpoint_dir
[checkpoint_period]
method=ls_dyna" [bsub_options] LS_Dyna_command
[LS_Dyna_options]
OR:
[ -R ls_dyna ] -a ls_dyna -k "checkpoint_dir" | -k "checkpoint_dir
[checkpoint_period]
" [bsub options] LS_Dyna_command [LS_Dyna_options]
-R ls_dyna
Optional. Specify the ls_dyna shared resource if the LS-Dyna application is only
installed on certain hosts in the cluster.
method=ls_dyna
Mandatory. Use the esub for LS-Dyna jobs, which automatically sets the checkpoint
method to
ls_dyna to use the checkpoint and restart programs echkpnt.ls_dyna
and
erestart.ls_dyna. Alternatively, use bsub -a to specify the ls_dyna esub.
The checkpointing feature for LS-Dyna jobs requires all of the following parameters:
-k checkpoint_dir
Mandatory. Regular option to bsub that specifies the name of the checkpoint directory.
Specify the
ls_dyna method here if you do not use the bsub -a option.
checkpoint_period
Regular option to bsub that specifies the time interval in minutes that LSF will
automatically checkpoint jobs.
LS_Dyna_command
Regular LS-Dyna software command and options.
Preparing your job scripts
Specify any environment variables required for your LS-Dyna jobs. For example:
LS_DYNA_ENV=VAL;export LS_DYNA_ENV