LSF Version 7.3 - Using Platform LSF HPC

Log files
For troubleshooting LAM/MPI jobs, define LOGDIR in the
LSF_BINDIR/lammpirun_wrapper script. Log files
(
lammpirun_wrapper.job[
job_ID
].log) are written to the LOGDIR directory.
If LOGDIR is not defined, log messages are written to
/dev/null.
For example, the log file for the job with job ID 123 is:
lammpirun_wrapper.job123.log