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IPSLCM6 configuration
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[[PageOutline(1-4,Table of contents,,numbered)]]
Person in charge: Arnaud Caubel
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# Description of the configuration #
[[Image(IPSLCM6.png, 500px)]]
IPSLCM6 model is available at different resolutions/configurations :
* IPSLCM6-LR : LMDZ 144x144x79-ORCHIDEE (CWRR) - NEMO-LIM3-PISCES eORCA1xL75.The resolution of LMDZ is 144x142 (2.5° in longitude and 1.5° in latitude) with 79 vertical levels. The ocean configuration is eORCA1L75 : global ocean with a tripolar grid with one South pole, one North pole above Siberia and one North pole above northern America. The resolution is 1°. In the tropical region, the latitudinal resolution decreases to 1/2°. There are 76 vertical levels, with 1m resolution near the surface, and 200m in the abyss.
* IPSLCM6-MR : LMDZ 256x256x79-ORCHIDEE (CWRR) - NEMO-LIM3-PISCES eORCA1xL75
'''IPSLCM6-LR''' is composed of following components and tools (Oct. 2019) :
{{{
#-H- IPSLCM6.1.10-LR IPSLCM6.1.10-LR coupled configuration
#-H- IPSLCM6.1.10-LR 11th IPSLCM6.1-LR version
#-H- IPSLCM6.1.10-LR https://forge.ipsl.jussieu.fr/igcmg/ticket/120
#-H- IPSLCM6.1.10-LR NEMOGCM branch nemo_v3_6_STABLE revision 9455
#-H- IPSLCM6.1.10-LR SHACONEMO revision 278
#-H- IPSLCM6.1.10-LR XIOS2 trunk revision 1550 branch xios-2.5
#-H- IPSLCM6.1.10-LR IOIPSL src tags 2_2_4
#-H- IPSLCM6.1.10-LR LMDZ6 LMDZ6/branches/IPSLCM6.0.15 rev 3554
#-H- IPSLCM6.1.10-LR ORCHIDEE version tags/ORCHIDEE_2_0/ORCHIDEE revision 5661
#-H- IPSLCM6.1.10-LR OASIS3-MCT 2.0_branch rev 1818
#-H- IPSLCM6.1.10-LR IPSLCM6 svn 4673
#-H- IPSLCM6.1.10-LR libIGCM trunk rev 1478
#-M- IPSLCM6.1.10-LR arnaud.caubel@lsce.ipsl.fr
#-C- IPSLCM6.1.10-LR IOIPSL/tags/v2_2_4/src HEAD 8 IOIPSL/src modeles
#-C- IPSLCM6.1.10-LR tags/ORCHIDEE_2_0/ORCHIDEE 5661 14 ORCHIDEE modeles
#-C- IPSLCM6.1.10-LR branches/OASIS3-MCT_2.0_branch/oasis3-mct 1818 15 oasis3-mct .
#-C- IPSLCM6.1.10-LR LMDZ6/branches/IPSLCM6.0.15 3554 11 LMDZ modeles
#-C- IPSLCM6.1.10-LR trunk/INCA6 825 9 INCA modeles
#-C- IPSLCM6.1.10-LR CONFIG/UNIFORM/v6/IPSLCM6 4673 8 IPSLCM6 config
#-C- IPSLCM6.1.10-LR trunk/libIGCM 1478 10 libIGCM .
#-C- IPSLCM6.1.10-LR branches/2015/nemo_v3_6_STABLE/NEMOGCM 9455 7 . modeles
#-C- IPSLCM6.1.10-LR trunk/ORCA1_LIM3_PISCES 278 17 . modeles/NEMOGCM/CONFIG
#-C- IPSLCM6.1.10-LR XIOS/branchs/xios-2.5 1550 12 XIOS modeles
}}}
# Technical details #
## How to use it ##
Here are the commands you need to know if you want to retrieve and compile the IPSLCM6 model and if you want to setup and run a piControl experiment (only piControl experiment is available):
{{{
#!sh
mkdir YOUR_DIRECTORY ; cd YOUR_DIRECTORY
svn_ano # svn co http://forge.ipsl.jussieu.fr/igcmg/svn/modipsl/trunk modipsl
cd modipsl/util
./model IPSLCM6.1.10-LR
cd ../config/IPSLCM6
gmake IPSLCM6-LR
cp EXPERIMENTS/IPSLCM/piControl_TEST/config.card .
vi config.card # modify JobName (at least) : MYJOBNAME, restarts
../../util/ins_job # Check and complete job's header
cd MYJOBNAME
vi Job_MYJOBNAME # modify PeriodNb, adjust the time, headers ...
sbatch Job_MYJOBNAME # IDRIS
ccc_msub Job_MYJOBNAME # TGCC
}}}
### Restart files ###
Not available yet. Waiting for reference simulations.
### Output level ###
By default, only '''monthly outputs''' and '''low output levels''' are activated.
### Lengths, frequencies ###
#### Period length ####
Default period length is 1Y, i.e in config.card :
{{{
PeriodLength=1Y
}}}
Note that clean_PeriodLength.job will remove last period files, i.e last simulated year files.
#### Pack Frequency ####
Default pack frequency is 1Y, i.e in config.card :
{{{
PackFrequency=1Y
}}}
#### Rebuild frequency ####
Since we run with XIOS (server mode) as output library, '''the rebuild step is not needed anymore'''.
#### How to add a parameter in NEMO's namelist? ####
* let find the parameter in namelist_ref. For example in modeles/NEMOGCM/CONFIG/SHARED/namelist_ice_lim3_ref
* let find the namelist's name : for example &namicedyn
* let add a line with the new of the parameter in the file PARAM/namelist_lim3_ORCA1_cfg in the &namicedyn section
#### What is the maximum length for a simulation name? ####
Due to limitation in NEMO, a simulation should have '''less than 39 characters'''.
### Computing centres ###
#### TGCC Bull Curie thin nodes ####
Default configuration on '''598 cores''' allows you to run '''3 simulated years per day'''. Because of load-balancing (difference between ocean computing time and atmosphere computing time), not all configurations (in terms of number of process/threads) are efficient. If you want to run a configuration with less cores, ask Arnaud Caubel what would be the optimum configuration.