Difference between revisions of "Installing Titan mesoscale model on spirit"

Latest revision as of 16:56, 26 February 2026

Install FCM

On your home, do:

mkdir TOOLS
cd TOOLS
svn checkout https://forge.ipsl.jussieu.fr/fcm/svn/PATCHED/FCM_V1.2
cd
vi .bash_profile

In your ~/.bash_profile, add:

export PATH=$PATH:$HOME/TOOLS/FCM_V1.2/bin

Configure your ~/.bashrc

In your ~/bashrc, add:

# Source global definitions
if [ -f /etc/bashrc ]; then
        . /etc/bashrc
fi

# User specific aliases and functions

ulimit -s unlimited

declare -x PATH=./:$PATH
declare -x WRFIO_NCD_LARGE_FILE_SUPPORT=1

module purge
module load intel/2021.4.0
module load intel-mkl/2020.4.304
module load openmpi/4.0.7
module load hdf5/1.10.7-mpi
module load netcdf-fortran/4.5.3-mpi
module load netcdf-c/4.7.4-mpi
declare -x WHERE_MPI=/net/nfs/tools/u20/22.3/PrgEnv/intel/linux-ubuntu20.04-zen2/openmpi/4.0.7-intel-2021.4.0-43fdcnab3ydwu7ycrplnzlp6xieusuz7/bin/
declare -x NETCDF=/scratchu/spiga/les_mars_project_spirit/netcdf_hacks/SPIRIT
declare -x NCDFLIB=$NETCDF/lib
declare -x NCDFINC=$NETCDF/include

Add private key

If you don't have one already, you need to add a private key file on your home, that corresponds to the public key file you have on GitLab.

To do this, put your id_rsa file in the directory ~/.ssh/. Then, change the rights to the file, so that only you can access and read it:

chmod go-r ~./ssh/id_rsa

Install the code

Load les_planet_workflow from Git

On one of the scratch disks (e.g. scratchu), do:

git clone git@gitlab.in2p3.fr:aymeric.spiga/les_mars_project.git les_planet_workflow

Create a new branch

In the les_planet_workflow directory, do:

git branch new_branch
git checkout new_branch

Adapt 0_defining file

Some lines are specific to the cluster, for SPIRIT:

archname="ifort_MESOIPSL"

Some lines are specific to Titan:

version=tags/titan_les_compiles_and_runs_master_MESOIPSL # titan
physics=titan
add="-d 32x48x55 -s 1 -b 23x23 -cpp OLD_COMPILO" # titan

/!\ The "inputs to script configure" depend on the version of WRF you use.

Run install.sh

./install.sh

Run a simulation

Simple run

Go to a test directory, for instance:

cd titan_pbl

Adapt the simulation parameters in namelist.input (e.g. the duration of the simulation).

Update the GCM data path: in callphys.def, set datadir to the same path as the datadir defined in physiq.def (e.g. /data/mlefevre/SIMU/filephys/TITAN/datagcm).

Then initialize and launch the simulation:

./ideal.exe
./wrf.exe

Step by step

Go to a test directory, for instance:

cd tests/test_folder

• Adapt the simulation parameters in namelist.input (e.g. the duration of the simulation).
• Adapt the simulation parameters in callphys.def (e.g. the number of physical time steps between radiative time steps).
• Adapt the simulation parameters in input_bubble. If you do not want a bubble, set delt and bubble_addCH4 to 0.
• Adapt the simulation parameters in input_coords (longitude, latitude, Ls, local time).
• If you have the namelist option use_levels activated, check that the levels file is coherent with your number of vertical layers. If you want to create a new levels file, use the scripts in tests/zlevels_create_levels_file.
• Create the input_sounding and tracer_sounding files with gettitan_xarray.py:

python3 gettitan_xarray.py

• Check that symbolic links exist, otherwise create them by running ./make_symbolic_links.sh
• Initialize the simulation:

./ideal.exe

• Check rsl.out.0000 and rsl.error.0000. You should have "wrf: SUCCESS COMPLETE IDEAL INIT" written at the end.
• If you want to launch a Spirit job: adapt the simulation duration, memory, number of CPUs, ... in scriptlaunch
• Launch the simulation:

If you want to launch a Spirit job:

./launch

If you want to launch interactively on the console:

./wrf.exe