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. To set up an appropriate environment “source” the setWRF file with the following command: . /opt/gridware/non-supported/WRF-3.6.1-gcc-ompi/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.