View source for WRF

This page will feature some help on getting started with WRF at GFI.


Login to Cyclone

Create folder for playing with WRF with initjet

In that folder do: git clone <nowiki>https://git.app.uib.no/Clemens.Spensberger/initjet.git</nowiki>

Go into the initjet folder

Command: module load netCDF-Fortran/4.4.4-foss-2018b OpenBLAS/0.3.1-GCC-7.3.0-2.30

Go into the folder src and type: make main.exe

Using: vi namelist.initJET you can edit the namelist for your WRF simulation

For example: 201 by 101 grid points, 10k by 5k domain, sst_diff = 0, p-pert, P_nx=51, P_ny=51, P_amp=6.d2

If you want to view output from initJET first do: module load ncview

Then you can use ncview to view the initial state

ssh uib-username@fram.sigma2.no

wget https://github.com/wrf-model/WRF/releases/download/v4.5.2/v4.5.2.tar.gz

tar -xzf v4.5.2.tar.gz

module load WRF/4.4-foss-2022a-dmpar (software needed to compile WRF)

export NETCDF=/cluster/software/netCDF-Fortran/4.6.0-gompi-2022a (setting environment variable that points WRF to the right places)

Execute command: ./configure

Correct answer is choice 34 (dmpar with NGU)

And just use basic (default 1)

One can start a terminal-in-terminal with command: tmux (control B and then D detaches terminal. Command to get back: tmux a)

Command to compile: ./compile em_real

Make directory for run: mkdir run

Instead of compiling own WRF, one can use existing copy: cp /cluster/projects/nn8124k/wrf_intro/* run/.

qos gives priority on queue: devel or short give higher priority

Adjust namelist to fit correct grid etc.

Need to also copy met_em files from cyclone to Fram before running WRF

scp ./met_em.d01.2000-01-0*nc username@fram.sigma2.no:~/run/.

In jobscript change: name, account, time, nodes, mail-user, qos

In namelist change: 

To run the job: sbatch jobscript.sh

To check the job queue: squeue -u username

You can also check job directly: scontrol show job JOBID

If run crashes, you can look at "slurm" file, alternatively go to run directly that you defined and look at rsl.error files.

To cancel a job: scancel <job-id>



[[Category:WRF]]
[[Category:Models]]