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

 

Section
Column
width50%60%
Operating SystemSupported CompilersSupport levelMPI
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
Mac OS X (not yet tested)   
Column
width50%40%
Support level 
 Good level of support - support; all test cases will be tested for verified at each new release
 Medium level of support - may not be tested for each releasesupport; not all test cases may be run depending on local resources.
 Not directly supported due to lack of facilities at ECMWF;
known to work on external systemsMinimal support. No equivalent system available at ECMWF. Relies on access to external systems or user tests.

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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