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Please see the Prerequisites page for details of what other software is required to be able to run OpenIFS.

OpenIFS is predominantly fortran code with a small amount of C and requires some flavour of Unix (such as Linux). It is known to run on a number of systems, some of which are directly supported by ECMWF.

The following table details what combinations have been tested and the support level:

 

Operating SystemSupported CompilersSupportMPI
Linux/Unix
x86_64 (64 bit2)

gfortran (v4.5 & above)1

 OpenMPI
Intel : ifort (v12.1.0) 
Portland : pgf90 (v12.3) 
Cray : ftn 
AIXIBM : xlf (v11.1) IBM Parallel
Environment
Technical Support level 
 Full support; all test cases will be verified at each release
 

Good support; not all test cases may be run depending on local resources. Typically this means the highest resolution tests will not be run.

 Minimal support. No equivalent system available at ECMWF. Relies on access to external systems or user tests.

Mac OS X. OpenIFS will run on Mac OS X using the gfortran/gcc compilers but we do not offer any technical support on this system.

Notes:

  1. gfortran version must be at least 4.5. OpenIFS is known not to work on gfortran versions less than this due to a bug in the gfortran compiler.
  2. 32bit is not supported or tested.

 

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