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OpenIFS uses software called 'FCM' to handle the compilation of the code. FCM is distributed with OpenIFS in the tarball downloaded from the ftp site.
Before trying to compile OpenIFS, 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 distributed with OpenIFS):
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export PATH=$PATH:$HOME/ecmwf/oifs/fcm/bin |
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OIFS_GRIB_API_DIR - Defines the location of the grib_api library. If you followed the example in 'Installing Install grib_api for OpenIFS' it will be installed in $HOME/ecmwf/grib_api_gcc.
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