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titlePrerequisites

You should have completed: the install grib_api and downloaded and unpacked the OpenIFS data files and OpenIFS source code.

Set your environment

OpenIFS uses software called 'FCM' to handle the compilation of the code. FCM is distributed in the tarball downloaded from the ftp site.

Before trying to compile, make sure the FCM directory is added to your PATH environment variable so the fcm command can be found (if you already have fcm available on your system, we still recommend using the distributed version):

 

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titlee.g. assuming OpenIFS is unpacked in $HOME/ecmwf/oifs
export PATH=$PATH:$HOME/ecmwf/oifs/fcm/bin



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Build configuration

This is a brief introduction on compiling the OpenIFS model. For a more detailed description of the build system for OpenIFS and the different ways to configure it, see HowTo customize the OpenIFS build.

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