Please see the Prerequisites page for details of what 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 technical support level. For scientific support, see the OpenIFS documentation provided on this website or email openifs-support@ecmwf.int.
| Operating System | Supported Compilers | Support | MPI |
|---|---|---|---|
| Linux/Unix x86_64 (64 bit2) | gfortran (v4.5 & above)1 | OpenMPI, MPICH, Intel MPI | |
| Intel : ifort (v12.1.0) | |||
| Portland : pgf90 (v12.3) | |||
| Cray : ftn | |||
| AIX | IBM : xlf (v11.1) | IBM Parallel Environment | |
| MacOS X | gfortran | OpenMPI, | |
| Intel : ifort |
| 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:
- We recommend gfortran version must be at least 4.4. OpenIFS is known not to work on gfortran v4.3 due to a bug in the gfortran compiler.
- 32bit is not supported or tested.
The Open64 compiler suite does not work with the OpenIFS code.