TOC(heading=Using libIGCM library with ORCA2_LIM nemo_v3_4, depth=2, libIGCM/setupsimupage, libIGCM/change_BC, libIGCM/postprocessingpage, libIGCM/postalreadyrunpage, libIGCM_nemo_v_3_4/parallelpage_3_4, libIGCM/common_account, libIGCM/suggestpage, libIGCM/appendixpage )?

Using libIGCM library with ORCA2_LIM for nemo_v3_4

Purposes

• Document the using of Libigcm for NEMO version 3_4, in configuration ORCA2_LIM

• Official documentation of Libigcm is :

​http://forge.ipsl.jussieu.fr/igcmg/wiki/platform/documentation

Quick start guide : downloading nemo_3_4

downloading NEMO v3_4 default configuration is:
climatological run, with bulk core forcing, focring files COREII,
with calendar type noleap
and ocean output frequency 1Y,1M,5D,1D, ice output frequency 5D,
with iom_put, (with an example of iodef.xml file),
without MONITORING, and ATLAS. 

• Define the following alias to use SVN : 
  

   alias svn_ano='svn co http://forge.ipsl.jussieu.fr/igcmg/svn/modipsl/trunk modipsl'
  
  

• Create and go into working directory : 
  

   mkdir TRY ; cd TRY
  
  

• Extract modipsl : 
  

   svn_ano 
  

• Extract NEMOGCM :   (verify NEMOGCM definition in mod.def file)
  

   cd modipsl/util 
   ./model NEMOGCM
  

• Choose and compile configuration (for example if you run ORCA2_LIM configuration on "ada" machine at idris) :
  

   cd NEMOGCM/CONFIG
   ./makenemo -m x3750_ADA -n ORCA2_LIM
  
     (executable is created in ORCA2_LIM/BLD/bin directory)
  

Using ./makenemo -h to see help ( to see list of compilers availables, to see options,...) NOTE: IF YOU WANT TO COMPILE NEMO code that is not the NEMO directory, you can put you your NEMO code into (for example) MY_NEMO and compile it in this way

cp /PATH/YOUR_NEMO_DIR  NEMOGCM/MY_NEMO

cd NEMOGCM/CONFIG
 ./makenemo -n ORCA2_LIM -s MY_NEMO -m x3750_ADA -j0

 -j0 option create only configuration directory but does not compile it

========

• Create PARAM directory for ORCA2_LIM configuration :
  

   cp -R ORCA2_LIM/EXP00 ORCA2_LIM/IGCM00/PARAM
  

• Download Libigcm in EXTERNAL directory :
  

   cd ../EXTERNAL
   svn co http://forge.ipsl.jussieu.fr/libigcm/svn/tags/libIGCM_v1_9 libIGCM
   svn co http://forge.ipsl.jussieu.fr/igcmg/svn/modipsl/trunk/util
  

• Change PATH in ins_job script :
  

   vi util/ins_job ; line 106
   replace  for i in $(find ${d_n}/.. -name ${F_CFG} -print)
   by       for i in $(find ${d_n}/../.. -name ${F_CFG} -print)
  

• Create bin in EXTERNAL directory, and create link to nemo.exe :
  

   mkdir bin 
   cd bin 
   ln -s ../../CONFIG/ORCA2_LIM/BLD/bin/nemo.exe nemo.exe
   (because libIGCM looks for executable in ${MODIPSL}/bin ; in our case ${MODIPSL}=EXTERNAL/)
  

Editing at this point NEMOGCM/CONFIG/ORCA2_LIM/IGCM00/config.card
Editing at this point NEMOGCM/CONFIG/ORCA2_LIM/IGCM00/COMP/opa9.card
Editing at this point NEMOGCM/CONFIG/ORCA2_LIM/IGCM00/COMP/lim2.card
see : setupsimupage

• Submit Job :
  

   ./util/ins_job
   cd ../CONFIG/ORCA2_LIM/IGCM00 
   qsub Job_Name
  

And also see useful remarks: suggestpage

If you want to switch from climatological to interannual see: change_BC

Simona Flavoni last update: Timestamp?