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Introduction
The grib_api software library must be build and installed before you try to build OpenIFS on your system. Although you may have a version of grib_api on your system already that would most likely work, it is recommended that you build and install the version of the software provided on the OpenIFS ftp site. This version will have been tested with OpenIFS and known to work.
For more information about grib_api, please visit the grib_api website.
Before you start
Decide where you will put the grib_api package. For a single user, we recommend installing grib_api in the same directory as the model distribution.
For a multi-user environment, say a cluster or High Performance Computing Facility (HPCF), we suggest installing the grib_api package centrally once only and pointing your build configuration to this location.
Download
If you haven't already obtained the grib_api package, get it from the OpenIFS ftp site. The userid for ftp is 'openifs'. If you need the password, please email: openifs-support@ecmwf.int. Please note that currently we require a signed license before password access can be granted.
| Code Block | ||
|---|---|---|
| ||
ftp ftp.ecmwf.int
Connected to ftp-int.ecmwf.int.
Name (ftp.ecmwf.int:nagc): openifs
331 User openifs OK. Password required
Password:
ftp> cd src/grib_api
ftp> get grib_api-1.9.18.tar.gz
ftp> close |
For versions of grib_api before 1.9.18 you will also need to download and install the oifs_samples.tar.gz file in the src/grib_api directory because some of the GRIB templates that OpenIFS requires are not present in the 1.9.16 distribution.
Building and installing grib_api
Things to cover:
- specify compiler choice
- correct options for different compilers
- missing grib templates
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