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To create the batch job, use the oifs_run command. This creates a small batch job file ready to submit.

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oifs_run -e exptid [-m path-to-master.exe] [-r resolution] [-l namelist] [-s timestep] [-n nproc] [-f fcast len] [-x run number] [-q]

For this workshop, the only arguments to use are: -e, -l, -f, -x and -q.

Note that the -f argument, the length of the forecast is specified as: dNN, for example d10 means '10 days'.

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titleExercise

 Use the oifs_run command to create the job. You need to give a value to the '-e' and '-l' options. The other options can be left to their default values. The '-l' option is the name of the namelist file you edited above.

The command will create a create a file 'job1'.

Submit this job:

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qsub job1

Check the job status:

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qstatu

These forecasts complete in about 15mins.

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If you get the error message:

qstatu

 

: not found

execute the command:

source ~/bin/modules.sh

to correct set the environment.

Checking the model output

After the qstatu command shows that the job has completed, there will be a 'batch log file' in the pf001 directory:

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titleExample batch job logfile
oifs_trcray1.o1481792
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Using your favourite text editor, check this file to make sure the model has run correctly.  It's usually best to start from the bottom of the file and scroll up.

If you see:

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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   OPENIFS JOB FAILED
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

the model has failed.

 

The output from each model run goes into a directory named according to this run number. e.g. the default is 'output1'. So job2 would write the output to 'output2' and so on.

 

Run number

Each model run has a number. This is '1' by default but can be changed using the -x option to the oifs_run command.

 

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titleExample of second run using 5 days

oifs_run -e gc1d -l mynamelist -x 2 -f d5 -q

 Checking job status: qstatu