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Test result:  This test runs in directory  directory $OIFS_HOME/t21test  and and model output is written into subfolder output1. The model run also produces the file  file res_021_0072  which contains results from the error calculation. This error should be below 5%. For more information see the OpenIFS User Guide.

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Without chemistry:  This test uses a different script compared to the standard OpenIFS model's t21test. First we will verify its correct functionality by running the test without activating the model chemistry.

• To do this we run the standard t21test for experiment epc8

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• with the setup-exp.sh new script.

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• The test experiment runs in the RUNDIR directory specified in setup-exp.sh (the default is $SCRATCH/43r3/epc8/

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• ).
• We also need to use the command line option -x and give as argument the absolute full path to the master.exe binary executable.
• In setup-exp.sh you should change the value for RUN_NUMBER otherwise any pre-existing model output from this test will be overwritten. 

./setup-exp.sh -n 16 -t 2 -x /home/damk/oifs/model/openifs-ac/make/gnu-opt-chem-fftw/oifs/bin/master.exe

Test result:  As before an error calculation file res_021_0072 is created in the run directory and the model output is found in the subfolder output1 (this name depends on the RUN_NUMBER variable). 

With chemistry:  Now repeat the test with enabled model chemistry. This experiment is named oiac. This test runs in directory $SCRATCH/43r3/oiac/. 

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