The WRF V4.4 model has been recently installed and is available for all cluster users.

For utilizing WRF, it is recommended to follow the instructions provided in the UCAR tutorial. Please remember to use the tcsh shell and set the appropriate environment variables:

setenv DIR /home/software/atmos/WRFv4/Build_WRF/LIBRARIES
setenv CC gcc
setenv CXX g++
setenv FC gfortran
setenv FCFLAGS -m64
setenv F77 gfortran
setenv FFLAGS -m64
setenv JASPERLIB $DIR/grib2/lib
setenv JASPERINC $DIR/grib2/include
setenv LDFLAGS -L$DIR/grib2/lib
setenv CPPFLAGS -I$DIR/grib2/include
setenv PATH $DIR/netcdf/bin:$PATH
setenv NETCDF $DIR/netcdf
setenv LD_LIBRARY_PATH /home/software/atmos/WRFv4/Build_WRF/LIBRARIES/grib2/lib
setenv LD_LIBRARY_PATH $DIR/grib2/include:$LD_LIBRARY_PATH

The OPH cluster is configured with OpenMPI. Therefore, before running WRF, please load the relative module by using the command module load mpi/openmpi/4.1.4 (or include this command in your job file).

The installation includes the following libraries:

• jasper-1.900.1
• libpng-1.2.50
• zlib-1.2.11
• netcdf-4.1.3
• openmpi-4.1.4

The WRF configuration chosen is dmpar GNU (gfortran/gcc) with basic nesting, while WPS has been configured for Linux x86_64, gfortran (dmpar). The complete installation, including the necessary libraries, is located in the folder:

/home/software/atmos/WRFv4 

Users that need to customise or modify the source code are invited to install WRF locally on their own account. To do that they should copy the WRFv4 folder to their home directory (it requires around 1.8 GB) and can then independently run WRF by selecting desired characteristics. Only the folder

/home/temp/atmos/WRF/WRF_software/Build_WRF/WPS_GEOG/ 

needs to be shared among users, as it contains the static data (29 GB) required for running geogrid.exe.

The WRF software has been installed by the research group of Atmospheric Physics. Please contact the following person for any communications:

• Carlo Cintolesi
• Marco Possega