WRFDA V3.4.1 Installation

WRFDA (version 3.4.1) Installation

Forword

This document is intended to serve as a handy reference for new users in building and running the WRFDA-4DVAR on the RAIJIN cluster at NCI without the need of making site-specific modification to WRFDA.

Source Code

The source code tar files of WRFDA (V3.4.1) have been downloaded and placed in the subdirectory /projects/WRF/Downloads on the RAIJIN cluster. The uncompressed source code for V3.4.1 of WRFDA, which have been ported to build on RAIJIN cluster, is located in the subdirectory /projects/WRFPLUS/WRFPLUS_V3.4.1.

Prerequisite

Check the loaded modules and you should already have the Intel compilers and OpenMPI loaded, run:

module list

Currently Loaded Modulefiles: 1) rash 2) pbs 3) dot 4) intel-fc/12.1.9.293 5) intel-cc/12.1.9.293 6) openmpi/1.6.3

Ensure that intel compiler Version 12 or above is used

Load the required netcdf module, run:

module load netcdf/4.2.1.1

If configuring to build GRIB2 support, run (tcsh):

setenv JASPERINC /usr/include setenv JASPERLIB /usr/lib64

To enable large file support in NetCDF (This installation of NetCDF supports large file support), run(tcsh):

setenv WRFIO_NCD_LARGE_FILE_SUPPORT 1

If observational data in the PREPBUFR format are to be used, run(tcsh):

• • setenv BUFR 1

If satellite radiance data are to be used, in addition to the NCEP BUFR library, a Radiative Transfer Model (RTM) is required. Run(tcsh):

• • setenv CRTM 1

To set compilation environments for the CRTM build, the env variable SFC_CRTM needs to be specified, run(tcsh):

• • setenv SFC_CRTM ifort

For WRFDA-4DVAR build, assuming that WRFPLUS has been installed (required), set the environment variable WRFPLUS_DIR to the appropriate directory. Run(tcsh):

An example: setenv WRFPLUS_DIR /short/$PROJECT/$USER/WRFPLUS/WRFPLUS_V3.4.1/WRFPLUSV3

Create your personal subdirectory in /short/, run:

mkdir -p /short/$PROJECT/$USER/WRFDA_V3.4.1

Copy the WRFDA files to your /short/ subdirectory, run:

cd /short/$PROJECT/$USER/WRFDA_V3.4.1 cp -rf /projects/WRF/WRFDA/WRFDA_V3.4.1/WRFDA .

Building WRFDA-3DVAR/4DVAR

Go to the /WRFDA/ subdirectory, run:

cd /short/$PROJECT/$USER/WRFDA_V3.4.1/WRFDA/

Start with a clean installation before compiling WRFDA, run:

./clean -a

• • Configure WRFDA-3DVAR, run

./configure wrfda

You will be given four choices using Intel compiler. These choices range from compiling for a single processor job (serial), OpenMP shared-memory (smpar), to using distributed-memory (dmpar) or distributed Memory with shared memory (dm+sm).

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Please select from among the following build methods. 1. Linux x86_64 i486 i586 i686, ifort compiler with icc (serial) 2. Linux x86_64 i486 i586 i686, ifort compiler with icc (smpar) 3. Linux x86_64 i486 i586 i686, ifort compiler with icc (dmpar) 4. Linux x86_64 i486 i586 i686, ifort compiler with icc (dm+sm) Enter selection [1-4] : Once an option is selected from above, a choice of what type of nesting (no nesting (0), basic (1), pre-set moves (2), or vortex following (3)) will be given.

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Compile for nesting? (0=no nesting, 1=basic, 2=preset moves, 3=vortex following) [default 0]: For options dmpar and dm+sm, the choice 0=no nesting is not applicable.

• • Configure WRFDA-4DVAR, run:

./configure 4dvar

You will be given two choices using Intel compiler. These choices include compiling for a single processor job (serial) and using distributed-memory (dmpar).

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Please select from among the following supported platforms.

1. Linux x86_64 i486 i586 i686, ifort compiler with icc (serial) 2. Linux x86_64 i486 i586 i686, ifort compiler with icc (dmpar)

Enter selection [1-2] : Once an option is selected from above, a choice of what type of nesting (no nesting (0), basic (1), pre-set moves (2), or vortex following (3)) will be given.

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Compile for nesting? (0=no nesting, 1=basic, 2=preset moves, 3=vortex following) [default 0]: For options dmpar, the choice 0=no nesting is not applicable.

A file configure.wrf should be created after configuring has completed.

Modify the script run_compile:

For WRFDA-3DVAR, remove the line " setenv WRFPLUS_DIR YOUR-WRFPLUS-INSTALLATION-DIR"

For WRFDA-4DVAR, changing env variable WRFPLUS_DIR to YOUR-WRFPLUS-INSTALLATION-DIR

To build WRFDA, use the script run_compile to submit it to the job batch queue, run:

qsub run_compile

Make sure that all executables have been generated (especially da_wrfvar.exe)

Note that this should not have any effects on compiling if different versions of openMPI and netCDF.