automated way to build an MPAS case with particles

generate_E3SM_case.sh

#!/bin/bash
# Author : Riley X. Brady
# Date : 11/04/2018
#
# This script sets up a g-case experiment with lagrangian particles, following
# all steps until submit.

# setup
res=T62_oEC60to30v3
nproc_ocean=512
nproc_ice=128
mach=grizzly
pcode=w17_oceaneddies
input_dir=/lustre/scratch3/turquoise/maltrud/ACME/input_data

# particles
nvertlevels=0
declare -i nvertlevels

# Case setup.
echo "Setting up case..."
echo "------------------"

HOMEDIR=`pwd`

cd cime/scripts
casename=GMPAS-IAF.${res}.${mach}.${nproc_ocean}o.${nproc_ice}i
if [ nvertlevels == '0' ]
then
    casename=${casename}.noParticles
    PARTICLES=false
else
    casename=${casename}.${nvertlevels}ParticleLayers
    PARTICLES=true
fi

# check if case exists to avoid overwrite.
if [ -d "../../$casename" ]
then
    echo "ERROR: Specified case already exists."
    exit 1
fi

./create_newcase --case ../../${casename} --compset GMPAS-IAF --res ${res} \
    --mach ${mach} --compiler gnu --mpilib openmpi --project ${pcode} \
    --input-dir ${input_dir}
cd ${HOMEDIR}


# DONT FORGET TO ADD ECOSYS FLUX TO 30TO10 CASE.