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In this section of the tutorial, we 'll will run the pre-compiled OpenIFS model on a simple T21 forecast.

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Panel
titleTasks - Examine t21test directory
  1. Make sure you are in the directory:  $PERM/oifs43r3/t21test.
  2. List the files in this directory.

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Files beginning with 'ICM'.
These are the input files for this T21 experiment. They are in GRIB format. Do not move them from this directory. OpenIFS expects to find it's its input files in the same directory as the main executable.

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Panel
titleTasks - Run model

 Run the model:

% ./job

What happens?

The model fails. Look in the NODE_001.01 file and find the subroutine traceback. Near the top of the traceback you will find the error messages.

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Panel
titleTasks - Run the model as a single process

 Copy the file namelists to fort.4 and run the model with a single task and single thread by executing the job script:

Code Block
% cp namelists fort.4
% ./job


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