...

This will build the model binaries for the selected compiler and will run the ifs-test t21 and t42 tests.

  Platform configuration file

You will need to set up a configuration file for your OpenIFS installation. This file can be located anywhere but the recommended location would be somewhere inside your $OIFS_HOME installation.

This file sets global variables for your model installation, depending on your local system, and it will need to be sourced prior to running the model. 

We provide a template file in $OIFS_HOME/bin/oifs48r1-config.sh. You should edit this file and update variable OIFS_HOME with your installation's path.

We recommend that you include the command source $OIFS_HOME/bin/oifs48r1-config.sh in your shell configuration files (e.g. in .bashrc). 

 Run a forecast experiment

Extract the example forecast experiment i4xc.tgz into a location suitable for model experiments. 

Note:  The experiment directory can be a separate location from the earlier model installation path $OIFS_HOME.  You will need more disk space depending on the duration of the forecast experiment.

Example:  In our example on the ECMWF hpc2020 the model installation $OIFS_HOME is in $HOME/openifs and we extract the i4xc package in $PERM, and the experiment directory shall therefore be $PERM/i4xc/2016092500.