Working on ocean
¶
This section describes the steps to set up and test NEMO v3.4 on ocean
.
Create a Workspace¶
NEMO v3.4 requires
- bash installed
- perl installed
- svn installed
- FORTRAN90 compiler installed
- netcdf installed
FORTRAN compiler on ocean cluster is G95.
The directory of netCDF library in ocean
is:
cd /usr/lib
Create a space for NEMO v3.4 code and file I/O
mkdir -p /ocean/$NAME/GEOTRACES/
Access to NEMO v3.4 code¶
- Register in NEMO Homepage.
- Follow the steps on NEMO User Guide.
- Download NEMO v3.4. The package is “nemo_v3_4” or “dev_v3_4_STABLE_2012”.
- One can also refers to a similar page on Salishsea-MEOPAR.
- Windows users can get the code by using TortoiseSVN for a backup.
- The tree structure of directory can be viewed on NEMO Quick Start Guide.
Change the permission of code directory
cd /ocean/$NAME
chmod -R a+x GEOTRACES
Compile the code¶
The arch file for NEMO
cd /ocean/$NAME/GEOTRACES/$CODEDIR/NEMOGCM/ARCH
vim arch-ocean.fcm
arch-ocean.fcm
:
# generic gfortran compiler options for linux
# NCDF_INC netcdf include file
# NCDF_LIB netcdf library
# FC Fortran compiler command
# FCFLAGS Fortran compiler flags
# FFLAGS Fortran 77 compiler flags
# LD linker
# LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
# FPPFLAGS pre-processing flags
# AR assembler
# ARFLAGS assembler flags
# MK make
# USER_INC additional include files for the compiler, e.g. -I<include dir>
# USER_LIB additional libraries to pass to the linker, e.g. -l<library>
# ============================================================================
%NCDF_INC -I/usr/include
%NCDF_LIB -L/usr/lib -lnetcdff
%FC gfortran
%FCFLAGS -fdefault-real-8 -O3 -funroll-all-loops -fcray-pointer
%FFLAGS %FCFLAGS
%LD gfortran
%LDFLAGS
%FPPFLAGS -P -C -traditional
%AR ar
%ARFLAGS -rs
%MK make
%USER_INC %NCDF_INC
%USER_LIB %NCDF_LIB
Configuring a testing case
cd /ocean/$NAME/GEOTRACES/$CODEDIR/NEMOGCM/CONFIG
./makenemo -m ocean -r ORCA2_OFF_PISCES -n case_name add_key "key_nosignedzero key_netcdf4"
Run your case¶
Download forcing files from NEMO Homepage and place all the files in:
cd /ocean/$NAME/GEOTRACES/$CODEDIR/NEMOGCM/CONFIG/$case_name/EXP00
mv $forcing_file .
After changing NEMO’s output in ocean
and other options in different namelists. We can run the model
./opa &
The export information is saved in ocean.output
.