Updated: 04 12 January 2024
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1. Load required modules and set environment variables
Paste the whole recipe into your terminal.
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module purge module load cpeIntel/23.09 module load cray-hdf5-parallel/1.12.2.7 module load cray-netcdf-hdf5parallel/4.9.0.7 module load cray-parallel-netcdf/1.12.3.7 module load libpng/1.6.39-cpeIntel-23.09 module load JasPer/1.900.1-cpeIntel-23.09 module load ADIOS2/2.9.1-cpeIntel-23.09 export WRF_EM_CORE=1 # Explicitly select ARW core developed by NCAR export WRF_NMM_CORE=0 # Not NMM core export WRF_CHEM=0 # Select WRF-Chem export NETCDF=${CRAY_NETCDF_HDF5PARALLEL_PREFIX} export NETCDFPAR=${CRAY_NETCDF_HDF5PARALLEL_PREFIX} export PNETCDF=${CRAY_PARALLEL_NETCDF_PREFIX} export HDF5=${CRAY_HDF5_PARALLEL_PREFIX} export ADIOS2=${EBROOTADIOS2} unset ADIOS2 # ADIOS2 have not yet been integrated well into WRFDA 4dvar. export JASPERINC=${EBROOTJASPER}/include # (Optional) export JASPERLIB=${EBROOTJASPER}/lib # (Optional) export WRFIO_NCD_LARGE_FILE_SUPPORT=1 # (Optional) export PNETCDF_QUILT=1 # (Optional) ### Common mistake :: insert spaces before or after = |
2. Set install location directory (DIR)
Let set an install path, DIR.
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# While being in your desired install location directory, execute export DIR=$(pwd) |
3. Download WRF source code
An example for WRF 4.5.1 is as shown below.
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For other version, check the WRF stable branches on the GitHub repository and its official website. For WRF 3.X, users have to add ./WRFV3/chem folder with these. |
4. Enable GRIB2 IO (Optional)
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Must set JASPERINC and JASPERLIB in Step 1 |
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vi ${DIR}/WRF/arch/Config.pl # or Config_new.pl
# Change $I_really_want_to_output_grib2_from_WRF = "FALSE" ;
# to $I_really_want_to_output_grib2_from_WRF = "TRUE" ; |
5. Install RTTOV (Optional)
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WRFDA 4d-var version 4.5.1 supports up to RTTOV 12.1 |
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FC=ftn FC77=ftn CC=cc LDFLAGS_ARCH= -static-intel CFLAGS_ARCH= FFLAGS_ARCH=-fPIC -O3O2 -fp-model source -static-intel AR=ar r # Loop unrolling causes ifort v13 and later to take a long time to compile these subroutines FFLAGS_ARCH_rttov_opdep_9_ad=-fPIC -O3O2 -unroll0 -fp-model source FFLAGS_ARCH_rttov_opdep_9_k=-fPIC -O3O2 -unroll0 -fp-model source FFLAGS_ARCH_rttov_opdep_13_ad=-fPIC -O3O2 -unroll0 -fp-model source FFLAGS_ARCH_rttov_opdep_13_k=-fPIC -O3O2 -unroll0 -fp-model source # -fp-model source ensures more consistent floating point results |
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export RTTOV=${DIR}/RTTOV |
6. Compile WRFPLUS (Optional, only for 4dvar)
Copy the source code and go inside the directory
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export WRFPLUS_DIR=$(pwd) |
7. Compile WRFDA 4dvar
Copy the source code and go inside the directory
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Run
ls ./var/build/*.exe | wc -lto check if 43 executables were successfully compiled.Run
ls ./var/obsproc/src/*.exeto check ifobsproc.exeexists.
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ADIOS2 have not yet been integrated well into WRFDA 4dvar. Execute |
8. Example: Job submission script
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#!/bin/bash
#SBATCH -p compute # Partition
#SBATCH -N 1 # Number of nodes
#SBATCH --ntasks-per-node=128 # Number of MPI processes per node
#SBATCH -t 5-00:00:00 # Job runtime limit
#SBATCH -J WRFDA # Job name
#SBATCH -A ltxxxxxx # Account *** {USER EDIT} ***
module purge
module load cpeIntel/23.09
module load cray-hdf5-parallel/1.12.2.7
module load cray-netcdf-hdf5parallel/4.9.0.7
module load cray-parallel-netcdf/1.12.3.7
module load libpng/1.6.39-cpeIntel-23.09
module load JasPer/1.900.1-cpeIntel-23.09
module load ADIOS2/2.9.1-cpeIntel-23.09
export OMP_NUM_THREADS=1
ulimit -s unlimited
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