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fortran & C compilers - many Linux/Unix systems come with gfortran/gcc by default which work well with the OpenIFS models. High Performance Computer facilities may provide other compilers which achieve better performance.
OpenIFS supports: GNU, Intel, IBM xlf and Cray compilers. The fortran compiler must support an auto-double (e.g. -r8) capability as some source code files are in fixed format fortran.
The OpenIFS model can make use of OpenMP if it is supported on your system (multicore) and compilers but this is optional. Note that if OpenMP is used then the version of MPI used should be thread-safe.
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