Notes on NEMO v3.1

These are notes on building and running NEMO v3.1 from

The “Installing NEMO using modipsl” instructions ( and the “modipsl documentation” ( provided some guidance for the creation of the notes below.

Getting the Code

  • Create a new working directory and do an svn trunk checkout of the modipsl framework:

mkdir nemo31
cd nemo31
svn checkout modipsl
  • Edit modipsl/util/mod.def to add a NEMO_31 section containing:

    #-H- NEMO_31  NEMO
    #-H- NEMO_31  OPA
    #-H- NEMO_31  LIM
    #-H- NEMO_31  TOP
    #-H- NEMO_31  IOIPSL/src - svn - tag v2_1_4
    #-H- NEMO_31  NEMO sources and configurations - svn - tag nemo_v3_1
    #-M- NEMO_31
    #-C- NEMO_31  IOIPSL/tags/v2_1_9/src                        HEAD  8  IOIPSL/src             modeles
    #-C- NEMO_31  XMLF90                                        HEAD  12 XMLF90                 modeles
    #-C- NEMO_31  XMLIO_SERVER/trunk                              51  12 XMLIO_SERVER           modeles
    #-C- NEMO_31  tags/nemo_v3_1/EXTERNAL/XMLF90                HEAD  7  XMLF90/external        modeles
    #-C- NEMO_31  tags/nemo_v3_1/EXTERNAL/XMLIO_SERVER          HEAD  7  XMLIO_SERVER/external  modeles
    #-C- NEMO_31  tags/libIGCM_v1_4                             HEAD  10 libIGCM                .
    #-C- NEMO_31  tags/nemo_v3_1/AGRIF                          HEAD  7  .                      modeles
    #-C- NEMO_31  tags/nemo_v3_1/NEMO                           HEAD  7  .                      modeles
    #-C- NEMO_31  tags/nemo_v3_1/UTIL                           HEAD  7  .                      modeles
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/GYRE                    HEAD  7  GYRE                   config
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/GYRE_LOBSTER            HEAD  7  GYRE_LOBSTER           config
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/ORCA2_LIM               HEAD  7  ORCA2_LIM              config
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/ORCA2_LIM_PISCES        HEAD  7  ORCA2_LIM_PISCES       config
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/ORCA2_OFF_PISCES        HEAD  7  ORCA2_OFF_PISCES       config
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/POMME                   HEAD  7  POMME                  config
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/ORCA2_LIM/EXP00         HEAD  7  PARAM                  config/ORCA2_LIM/IGCM00
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/ORCA2_LIM_PISCES/EXP00  HEAD  7  PARAM                  config/ORCA2_LIM_PISCES/IGCM00
    #-C- NEMO_31  tags/nemo_v3_1/CONFIG/ORCA2_OFF_PISCES/EXP00  HEAD  7  PARAM                  config/ORCA2_OFF_PISCES/IGCM00
  • Install NEMO v3.1 and its dependencies:

    cd modipsl/util
    ./model NEMO_31

    Your credentials are required for most of the checkouts that model does and you will be asked for your password for each one unless you have svn password caching configured.

Build Notes

The build process described here was done on

  • Load the following modules to configure the jasper environment:

    module load compiler/intel/12.1
    module load library/intelmpi/
    module load library/netcdf/4.1.3
    module load library/szip/2.1
    module load application/ncview/2.1.1
  • For the initial test the GYRE configuration was used. Still working in the modipsl/util/ directory:

    ../modeles/UTIL/fait_config GYRE
  • Edit AA_make.gdef to add a jasper section containing:

    #-Q- jasper     #- Global definitions for using Linux Compiler Intel v8
    #-Q- jasper     LIB_MPI = MPI2
    #-Q- jasper     LIB_MPI_BIS =
    #-Q- jasper     M_K = make
    #-Q- jasper     P_C = cpp
    #-Q- jasper     P_O = -P -C -traditional $(P_P)
    #-Q- jasper     F_C = mpiifort -c -fpp
    #-Q- jasper     #-D- MD    F_D = -g
    #-Q- jasper     #-D- MN    F_D =
    #-Q- jasper     #-P- I4R4  F_P = -i4
    #-Q- jasper     #-P- I4R8  F_P = -i4 -r8
    #-Q- jasper     #-P- I8R8  F_P = -i8 -r8
    #-Q- jasper     #-P- ??    F_P = -i4 -r8
    #-Q- jasper     F_O = -O3 $(F_P)  -I$(MODDIR) -I$(MODDIR)/oce -module $(MODDIR) -assume byterecl -convert big_endian -I $(NCDF_INC)
    #-Q- jasper     F_F = $(F_O) -extend_source
    #-Q- jasper     F_L = mpiifort
    #-Q- jasper     L_O =
    #-Q- jasper     A_C = ar -r
    #-Q- jasper     A_G = ar -x
    #-Q- jasper     C_C = gcc -c
    #-Q- jasper     C_O =
    #-Q- jasper     C_L = gcc
    #-Q- jasper     #-
    #-Q- jasper     NCDF_INC = -I/lustre/jasper/software/netcdf/netcdf-4.1.3/include -lhdf5_hl -lhdf5 -lz -lsz
    #-Q- jasper     NCDF_LIB = -L/lustre/jasper/software/netcdf/netcdf-4.1.3/lib -lnetcdf -lnetcdff -lhdf5_hl -lhdf5 -lz -lsz
  • Edit ../config/GYRE/BB_make.ldef to add a jasper prefix for preprocessing:

    #-Q- jasper  prefix = -D
  • Run:

    cd ../modeles/NEMO

    to calculate compilation rules, options, and build dependencies so as to create NEMO/WORK/AA_make (which is symlinked to modipsl/config/GYRE/scripts/BB_make)


    fait_AA_make must be run from the modeles/NEMO/ directory.

  • Remove any existing Makefiles and create new ones:

    cd ../../util
    ./ins_make -t jasper
  • Compile and link the code:

    cd ../config/GYRE
    make clean

The results of a successful build are:

  • a ../../bin/opa executable

  • a ../../lib/libioipsl.a library

  • a ../../lib/oce/libopa.a library