Wishbone configuration

Quick start on Anemone (NOC Supercomputing Service)

git clone git@github.com:NOC-MSM/Wishbone.git -b main
cd Wishbone
./setup

The setup script downloads nemo, compiles tools and configurations.

To run NEMO:

cd nemo/cfgs/GLOBAL_QCO/eORCA025

sbatch run_nemo1326_24x_v2.slurm

To conduct a test run there are a few variables to set in run_nemo1326_24x_v2.slurm. For example, the following variables will generate a 2-hour simulation split in 1-hour jobs.

# ========================================================
# PARAMETERS TO SET
# Restart frequency (<0 days, >0 hours)
FREQRST=1
# Simulation length (<0 days, >0 hours)
LENGTH=2
# Parent initial time step (0: infer from time.step)
# PARENT_IT000 != 0 -> auto-resubmission is switched OFF
PARENT_IT000=0
# Name of this script (to resubmit)
SCRIPTNAME=run_nemo1326_24x_v2.slurm
# =======================================================

Setup

Global eORCA025

Resolution:

• Horizontal: 1/4°
• Vertical: 75 levels

Spinup

Run 4 cycles of 1958 forcing, resetting T and S to ICs at the start of each year:

• In namelist_cfg set: nn_rstctl=0 and ln_reset_ts=.true.
• In run_nemo1326_24x_v2.slurm set: FREQRST=-365 and LENGTH=-1460

The 4th pass constitutes the first year of the simulation.

To continue:

• In namelist_cfg set: nn_rstctl=2 and ln_reset_ts=.false.
• In run_nemo1326_24x_v2.slurm set: FREQRST=-1461 and LENGTH=-17531

This will complete the simulation to end of 2002.