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

OpenIFS is models are predominantly Fortran code with some F2003 features and a small amount of C. It requires They require some flavour of Unix (such as Linux) . It is and known to run on a number of systems, some of which are directly supported by ECMWF. OpenIFS works models work on laptops, desktops, Linux clusters and large HPC systems. The maximum resolution possible on each platform is limited mainly by available memory (RAM) and processor speed.

The following table details what combinations have been tested and the technical support level. For scientific support, see the OpenIFS documentation provided on this website or email openifs-support@ecmwf.int.

 

Section
Column
width50%
Operating SystemSupported CompilersSupportMPI
Linux/Unix
x86_64 (64 bit2)

gfortran

1

 OpenMPI,
MPICH,
Intel MPI
Intel : ifort1 
Portland : pgf90 
Cray : ftn (cce) 
AIXIBM : xlf IBM Parallel
Environment
MacOS Xgfortran 

OpenMPI,
Intel MPI

Intel : ifort 
Column
        Technical support available
 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.

Notes:

  1. We recommend using the most recent gfortran compiler version.
  2. 32bit is not supported or tested.

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