UFS Medium-Range Weather (MRW) Practical Session Guide | Session 2: Other Experiments > 5. Run a restart case (beta)

In this exercise, you will set up and build the baseline case in a new directory, run it for 24 hours, then restart it and run for another 24 hours.

Start by creating a new case.

cd $HOME/UFS_training/my_ufs_sandbox/cime/scripts
./create_newcase --case $UFS_SCRATCH/ufs-mrweather-app-workflow.c96_restart --compset GFSv15p2 --res C96 --workflow ufs-mrweather

Note that the directory in $UFS_SCRATCH has the _restart suffix.

Continue, analogous to steps 3-5 of Session 1.

cd $UFS_SCRATCH/ufs-mrweather-app-workflow.c96_restart
./case.setup
./case.build 

As before, it should take about 8 minutes to build the new case.  Once done, change a few variables:

Set runtime to 24 hours

./xmlchange STOP_OPTION=nhours
./xmlchange STOP_N=24

Reduce wallclock time from 12 hours to 30 minutes

./xmlchange JOB_WALLCLOCK_TIME=00:30:00 

Turn off short term archiving 

./xmlchange DOUT_S=FALSE 

For the Tutorial, there is a reserved queue:

./xmlchange --force JOB_QUEUE=S4857724

Run the model for 24 hours

./case.submit

As before, you can use qstat to monitor your job's progress

qstat -u $USER

If needed, you can kill your job:

qdel JobID

When your initial job has completed, change CONTINUE_RUN to True

./xmlchange CONTINUE_RUN=TRUE

And the case will run for another 24 hours.

./case.submit

After it finishes, check your results with NCL:

module load intel/18.0.5 ncl/6.6.2
cd $UFS_SCRATCH/ufs-mrweather-app-workflow.c96_restart/run
wget https://raw.githubusercontent.com/wiki/ufs-community/ufs-mrweather-app/files/plot_ufs_sfcf.ncl
ncl plot_ufs_sfcf.ncl

To visualize the resulting images in png, use the command:

display plot_ufs_phyf_tmp2m.png
display plot_ufs_phyf_tprcp.png

The sample plots are below. Click here to compare the restart run to the baseline run.