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Warning

Please note that this page is up-to-date for older cycle of OpenIFS 43r3

Model code

OpenIFS models are predominantly Fortran code and

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

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a small amount of C

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. They require some flavour of Unix (such as Linux)

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and known to run on a number of systems, some of which are directly supported by ECMWF. OpenIFS 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

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. For scientific support, see the OpenIFS documentation provided on this website or email openifs-support@ecmwf.int.

See Release Notes for more details on compilers and libraries tested with OpenIFS versions. Please see the Prerequisites page for details of what software is required to be able to run OpenIFS models.


Section

Operating systems and compilers


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Operating SystemSupported CompilersSupport

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MPI
Linux/Unix
x86_64 (64 bit

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1)

gfortran

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OpenMPI,
MPICH,
Intel MPI
Intel : ifort

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Portland : pgf90 (v12.3)

Cray : ftn

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Green

Amber

Green

Red

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2
Cray : ftn (cce)
AIX
(OpenIFS 40r1 only)

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IBM : xlf

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IBM Parallel
Environment

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MacOS Xgfortran

OpenMPI,
Intel MPI

Intel : ifort

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Column

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Support level 

Green

Good level of support - will be tested for each new release
AmberMedium level of support - may not be tested for each release.
Red

Not directly supported due to lack of facilities at ECMWF;
known to work on external systems

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 higher resolution tests are not run.


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



Notes:

  1. 32bit is not supported or tested.
  2. We recommend using the most recent compiler version.
  3. Microsoft Windows is not supported.
  4. AIX support was withdrawn for OpenIFS versions beyond 40r1.




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Credits
Credits
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On this page ...

Table of Contents
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titleIn this section...

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page5. OpenIFS Installation


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titleOpenIFS User Guide ...

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pageOpenIFS 43r3 User Guide

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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