wiki:WRF4GProlog

prolog.wrf4g file

The prolog.wrf4g configuration file let use specific tools locally on the remote computing resources. This file has to be in the same directory as experiment.wrf4g is located. In order to help you, we are going to show two examples:

  • In the first one, we want to use your own WRF, WPS and NetCDF library compilation that are available on your remote computing resources. If we assume that all the jobs from an experiment have access to a local version, WRF4G will use binaries (ungrib.exe ,metgrid.exe, real.exe, wrf.exe and ncdump) in order to simulate the experiments there.
    [user@mycomputer~]$ cat prolog.wrf4g
    export PATH=~/WPS:$PATH
    export PATH=~/WRFV3/run:$PATH
    export PATH=~/netCDF/bin:$PATH
    
  • This second example presents a bash shell code which basically distinguishes between two resources using $GW_HOSTNAME variable. In this example, on mycomputer, you will use mpich2 with ethernet connection and on mycomputer2, you will use mvapich2 with infiniband connection.
    [user@mycomputer~]$ cat prolog.wrf4g
    if [ $GW_HOSTNAME = mycomputer ]; then
        use WRFV3.3.1
        use netCDF4.1.3
        use mpich2
    fi
    
    if [ $GW_HOSTNAME = mycomputer2 ]; then
        use WRFV3.3.1
        use netCDF4.1.3
        use mvapich2
    fi
    

How to know the value of all $GW_HOSTNAME variables?

[user@mycomputer~]$ wrf4g_resources | awk {'print $11'}
HOSTNAME
mycomputer
mycomputer2
Last modified 7 years ago Last modified on Oct 2, 2012 9:07:18 AM