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The NEMO configurations
Table of contents
Person in charge: Christian Ethé
NEMO configurations
The NEMO configuration described here is an ocean-sea ice configuration based on the version 3.6 stable of NEMO (Nucleus for European Models of the Ocean), which includes three major components: the ocean physics NEMO-OPA, the sea-ice dynamics and thermodynamics NEMO-LIM3 and the ocean biogeochemistry NEMO-PISCES. The available resolutions builded on the ORCA quasi-isotropic global tripolar grid are 2°, 1° and 1/4°. The 1° (eORCA1) and 1/4° (eORCA025) are extended to the south so as to better represent the contribution of Antarctic under-ice shelf seas to the Southern ocean freshwater cycle. Notice that the biogeochemical model PISCES can be run coupled online with the dynamics ( ORCA1-LIM3-PISCES for example ) or in a "stand-alone" ( ORCA2-LIM3-PISCES). This NEMO configuration has been builded to be able to perfom the OMIP6 experiments ( omip1 and omip2 protocol)
To find out more about the model description and the reference configurations, go here: http://www.nemo-ocean.eu/About-NEMO. To use and extract NEMO, you first need to register and choose a login/passwd
1. Retrieving NEMO and the reference configurations
XIOS is not available when getting NEMO. So first of all extract and install XIOS 2.0. This operation need to be done only once
cd $WORKDIR svn co http://forge.ipsl.jussieu.fr/ioserver/svn/XIOS/trunk -r 932 xios-2.0 ln -s xios-2.0 XIOS cd XIOS on ada : ./make_xios --arch X64_ADA --full --prod --job 8 on curie : ./make_xios --arch X64_CURIE --full --prod --job 8
#-H- NEMO_v6 NEMOGCM for CMIP6 exercise #-H- NEMO_v6 libIGCM tag libIGCM_v2.8.1 #-M- NEMO_v6 Christian.Ethe@ipsl.jussieu.fr #-C- NEMO_v6 trunk/libIGCM 1361 10 libIGCM . #-C- NEMO_v6 branches/2015/nemo_v3_6_STABLE/NEMOGCM 6969 7 . modeles #-C- NEMO_v6 trunk/ORCA1_LIM3_PISCES 60 17 . modeles/NEMOGCM/CONFIG #-C- NEMO_v6 CONFIG/UNIFORM/v6/NEMO_v6 HEAD 8 NEMO_v6 config
1.1. Setting up NEMO with the modipsl environment
1.1.1. Retrieval
mkdir NEMO_STD cd NEMO_STD svn co http://forge.ipsl.jussieu.fr/igcmg/svn/modipsl/trunk modipsl cd modipsl/util ./model NEMO_v6
1.1.2. Compiling and installing
Compiling NEMOGCM : config ORCA1_LIM3_PISCES on ADA/CURIE
cd modipsl/modeles/NEMOGCM/CONFIG ./makenemo -h all # help to see the options and the available arch
Available compilers at CNRS :
- ALTIX_JADE : ifort compiler options for CINES SGI-ALTIX Jade, http://www.cines.fr/spip.php?rubrique291
- BG_BABEL : babel IBM BlueGene/P at french IDRIS, http://www.idris.fr/su/Scalaire/babel
- X64_ADA : Ada IBM x3750 at french IDRIS, http://www.idris.fr/ada/ada-hw-ada.html
- TX7_ULAM : ulam IBM X3950 M2 at french IDRIS, http://www.idris.fr/su/Scalaire/ulam/hw-ulam.html
- X64_CURIE : Curie BULL at french TGCC, http://www-hpc.cea.fr/en/complexe/tgcc-curie.htm
- X64_TITANE : titane BULL at french CCRT, http://www-ccrt.cea.fr/fr/moyen_de_calcul/titane.htm
- X86_CESIUM : cesium pre/post processing HP at french CCRT, doesn't exist anymore.
on ada : ./makenemo -n ORCA1_LIM3_PISCES -m X64_ADA -j 8 on curie : ./makenemo -n ORCA1_LIM3_PISCES -m X64_CURIE -j 8
And the copy the binary in the appropriate directory
cp ORCA1_LIM3_PISCES/BLD/bin/nemo.exe ../../../bin/.
2. Creating the job
cd modipsl/config/NEMO_v6 cp EXPERIMENTS/ORCA1_LIM3_PISCES/ia/config.card . ../../libIGCM/ins_job
3. Running the model
3.1. Input files: atmospheric forcings, initial states, namelists
The card files ( opa9.card for orca1_lim and pisces.card for pisces) contain the list of files needed to perform the simulation.
These files are described here: https://forge.ipsl.jussieu.fr/igcmg_doc/wiki/DocImodelAnemo
3.2. The run
This example is a 50 years CORE2 forcing climatological run of ORCA1_LIM3_PISCES split in 1-year jobs.
JobName=eOR1L3P #----- Short Name of Experiment ExperimentName=ORCA1clim #----- DEVT TEST PROD SpaceName=DEVT LongName="ORCA1_LIM3_PISCES NEMO configuration" TagName=ORCA1_LIM3_PISCES #D- Choice of experiment in EXPERIEMENTS directory ExpType=ORCA1_LIM3_PISCES/clim #============================ #-- leap, noleap, 360d CalendarType=noleap #-- Begin and end of Job #-- "YYYY-MM-DD" DateBegin=0001-01-01 DateEnd=0050-12-31 #============================ #-- 1Y, 1M, 5D, 1D PeriodLength=1Y
3.2. Submlit the job
on ada : llsubmit Job_eOR1L3P on curie: ccc_msub Job_eOR1L3P
3.3. Performances
The performances of the eORCA1_LIM3_PISCES configuration can be find here: http://forge.ipsl.jussieu.fr/igcmg/wiki/PerformancesIPSLCM6
