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Extract the example forecast experiment ab2a.tgztar.gz into a folder in a location suitable for model experiments. This folder will be your experiment directory and its root path should correspond with the variable OIFS_EXPT in the platform configuration file.
Example:
On the ECMWF hpc2020 our model installation $OIFS_HOME will be in $HOME/openifs-48r1.1 and for the experiment we extract the ab2a package to $PERMab2a package to $OIFS_EXPT. The experiment directory shall therefore be $PERM $OIFS_EXPT/ab2a/2016092500.
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| language | bash |
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cp /perm/openifs/oifs_datawget https://sites.ecmwf.int/openifs/openifs-data/case_studies/48r1/examplekarl/ab2a.tar.tgzgz $PERM$OIFS_EXPT
cd $PERM$OIFS_EXPT
tar -xvzf ab2a.tar.tgzgz |
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The experiment directory would ideally be in a different location from the earlier model installation path $OIFS_HOME. In general, you will need more disk space for experiments, depending on the model grid resolution, the duration of the forecast experiment and the output fequency of model results. |
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| language | bash |
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cd $PERM$OIFS_EXPT/ab2a/2016092500
cp ./ecmwf/fort.4 .
cp ./ecmwf/wam_namelist . |
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| language | bash |
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cd $PERM$OIFS_EXPT/ab2a/2016092500
cp $OIFS_HOME/scripts/exp_3d/oifs-run .
cp $OIFS_HOME/scripts/exp_3d/exp-config.h .
cp $OIFS_HOME/scripts/exp_3d/run.ecmwf-hpc2020.job . |
Determine experiment parameters
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| language | bash |
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# run as batch job:
cd $PERM$OIFS_EXPT/ab2a/2016092500
sbatch ./run.ecmwf-hpc2020.job |
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| language | bash |
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# run interactively:
cd $PERM$OIFS_EXPT/ab2a/2016092500
./oifs-run |
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