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You will need to copy two further scripts from the OpenIFS package into your experiment directory:
- oifs-run: this is a generic run script which executes the binary model program file.
- config.h: this is configuration file that determines settings for your experiment. It will be read by oifs-run.
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In order to run the experiment interactively run ./ oifs-run in your terminal. If no command line parameters are provided with the oifs-run command, then the values from the config.h will be used.
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Alternatively, a job script could be used for submitting the script to the batch scheduler. An example script run.atos.job for the SLURM batch schedulescheduler, used on the ECMWF hpc2020 is provided here: $OIFS_HOME/bin/run.atos.job
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If the OIFS_PPROC variable has been set to true (or if the --pproc command line parameter was used) then the model output in the experiment directory is further processed after completing the model run.
In this case the script ill generate a folder called output_YYYMMDD_HHMMSS , with YYYYMMDD being the current date and HHMMSS the current time values. This avoids accidental modification or overwriting of any previous results when repeatingt he the model experiment is repeated. Variable The variable OUTPUT_ROOT in config.h determines where this ouput folder will be created. The default location is inside the experiment directory, but when assigning another path to OUTPUT_ROOT this could be created elsewhere.
Postprocessing The postprocessing groups all model output fields and diagnostic diagnostics into individual GRIB files with ascending forecast time step. Also, a copy of the atmospheric model namelist file fort.4, as well as the ifs.stat and NODE.01_001 log files are moved into the output folder.
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