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In contrast to the Acceptance Test this does not require an interactive session on the Cray's postprocessing node. We will submit the model experiment as a batch job.
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The Control Experiment
We will use a pre-compiled and pre-installed version of OpenIFS 43r3.
We will carry out a control experiment with a duration of six days, starting on 25 Sep 2016 00h00, using the model with cubic octahedral grid at horizontal resolution T399.
Preparing the Model
In your working group you should login to the RACC cluster and login to the ECMWF HPCF with your training account ID.
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Directories for climatological input files are mostly included through symbolic links to a central storage location.
Model Experiment Parameters
The model experiment directory should now contain the following files:
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| Code Block |
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UTSTEP=900.0 ! model time step is 900 seconds CUSTOP='h144' ! experiment for 144 hours (6 days) CNMEXP="h7cc" ! experiment ID NFPLEV=137 ! model grid has 137 vertical levels NFPMAX=399 ! horizontal resolution is Tco399 NPOSTS=0 ! regular output every 24 steps, NHISTS=0 ! with UTSTEP=900 this means every 6 hours NFRPOS=24 NFRHIS=24 |
Submitting the Control Experiment
We will not run this experiment in an interactive node because this would not provide sufficient resources for a timely completion of the experiment. We will instead submit a job to the batch scheduler, requesting a larger number of computing nodes.
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