WRF-3.7, compiled with the Intel compilers and using Intel MPI, is installed on the filesystem in /opt/gridware/non-supported/WRF-3.7-impi. Tests have indicated a useful performance benefit from using the Intel rather than Gnu compiler and OpenMPI. Please note that it is essential to set the unlimited stack size for the Intel-compiled version, as done in the script below. To set up an appropriate environment, “source” the setWRF file with the following command: . /opt/gridware/non-supported/WRF-3.7-impi/setWRF . This command should be placed in the PBS-Pro job submission script, but should also be placed in the user's .bashrc file, to ensure that the WRF environment is available when needed. Users need to develop their own workflows, but it is also practical to execute the pre-processing steps geogrid.exe, ungrib.exe, metgrid.exe and real.exe in single node mode with an interactive session. Simply give the command qsub -I to obtain an interactive session. Do not try to run these pre-processing steps from the login shell, as the shared login node cannot sustain a high work load. The real.exe pre-processing step for large cases may run into memory constraints. In that case, run real.exe in parallel over the requested number of nodes, but with only one process per node, as per the example script.

WRF-3.6.1 is installed on the filesystem in /opt/gridware/non-supported/WRF-3.6.1-gcc-ompi. Versions compiled with the Intel compiler and / or other MPI's are installed in similarly named directories. However, this GCC-compiled version with Open-MPI has been tested and is known to work.

WRF-3.6.1 with the added chemistry model is available in /opt/gridware/non-supported/WRF_chem-3.6.1-gcc-ompi. As per the above instructions, source the setWRF script in that directory to set up a suitable environment.

For post-processing, ARW-Post, NCL and GrADS have been installed, and the necessary paths and environment variables set up by sourcing the setWRF file. For graphics, refer to the Remote Visualization page for instructions on setting up a VNC session.