How to submit jobs to clusters

Pitzer

We participated in the Pitzer Early Program, which will become open to the public from Dec 4 2018.

Here is a page on migrating your job from Owens to Pitzer.

Introduction to Pitzer queues and batch limits

Here is a standard Pitzer Gromacs job script:

#PBS -N Ups1-NN
#PBS -l nodes=10:ppn=40
#PBS -l walltime=24:00:00
#PBS -S /bin/bash
#PBS -j oe
#PBS -A PAS1326
trap "cd $PBS_O_WORKDIR; rsync -avh $TMPDIR/ .; exit" TERM

date

module load gromacs
# PBS_O_WORKDIR refers to the directory from which the job was submitted.
cd $PBS_O_WORKDIR
prefix=step5_md
gmx convert-tpr -s ${prefix}-MM.tpr -o ${prefix}-NN.tpr -extend 200000
pbsdcp -p ${prefix}-MM.cpt ${prefix}-NN.tpr $TMPDIR
# Use TMPDIR for best performance.
cd $TMPDIR

mpiexec gmx_mpi mdrun -v -noappend -ntomp 1 -cpi ${prefix}-MM.cpt -deffnm ${prefix}-NN

pbsdcp -p * $PBS_O_WORKDIR/

Things to note:

1. The trap command is for copying out files when terminating
2. -noappend is required for Gromacs/2018.2 which is default on Pitzer
3. -ntomp 1 is A MUST on both Owens and Pitzer, might not be stated on the software page but confirmed by the OSC staff

Submit dependent jobs using this

Benchmarks