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Model Name

ACCESS 1.0 Coupled Model as used in CMIP5. Includes UM 7.3 atmosphere, MOSES land surface, CICE sea ice, MOM 4 ocean coupled using Oasis3

The model is not available in the UMUI, instead it is run from a set of shell scripts.

A guide to setting up and running the model on the old supercomputer Raijin can be found at

Running on Gadi

NOTE: Consider using ACCESS-ESM 1.5 for new runs on Gadi, it is much simpler to use

1. Build the models

Follow the instructions at to download the source code and build the model

2. Change the executable paths in your *.init file to point to the newly built model executables (note the timestamp in the file name will need to be changed)

cp -f $ACCESS_BINDIR/oasis3_MPI1.20200130.RJ         $cpl_exe
cp -f $ACCESS_BINDIR/mom4_MPI1.exe.20200130.VAYU     $ocn_exe
cp -f $ACCESS_BINDIR/cice_MPI1.VAYU_6p_20200130      $ice_exe
cp -f $ACCESS_BINDIR/um_hg2-r1.1.exe-20200131        $atm_exe

3. Set the recommended PBS headers for Gadi

#PBS -q normal
#PBS -l ncpus=144
#PBS -l mem=192gb
#PBS -l walltime=00:10:00
#PBS -l wd
#PBS -W umask=0022
#PBS -l storage=scratch/access+gdata/access

4. Set the recommended Decomposition (for a total of 144 cpus, 384 gb memory)

Component Variable Value
MOM oce_nx 8
MOM oce_ny 5
MOM nproc_ocn 40 (oce_nx * oce_ny)
CICE nproc_ice 6

5. Fix the main script (e.g. 'a10_hist')

A few edits are required throughout the script:

# Should point to the 'bin' directory from building the model

# Also load openmpi here
module load openmpi/4.0.2

# ...

# Replace the square brackets and their contents with 'true'
# if [[ "$PBS_O_HOST" == "raijin*" || "$PBS_O_HOST" == "r"*{0,2}(\d) ]] ; then
if true; then
         export exec_site="NCI"
         export exec_system="raijin"

# ...

# Change '/short' to '/scratch'
export SHORTDIR="/scratch/$PROJECT/$USER"

Model Configurations