TOC(heading=Using libIGCM library with ORCA2_LIM nemo_v3_3, depth=2, libIGCM/setupsimupage, libIGCM/change_BC, libIGCM/postprocessingpage, libIGCM/postalreadyrunpage, libIGCM_nemo_v_3_3/parallelpage_3_3, libIGCM/common_account, libIGCM/suggestpage, libIGCM/appendixpage )?

Using libIGCM library with ORCA2_LIM for nemo_v3_3

Purposes

• Document the using of Libigcm for NEMO version 3_3, in configuration ORCA2_LIM

• Official documentation of Libigcm is :

​http://forge.ipsl.jussieu.fr/libigcm/wiki/WikiStart

Quick start guide : downloading nemo_3_3_beta

1/2/2011 downloading NEMO trunk 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.

• Create and go into working directory :
  

   mkdir TRY ; cd TRY
  

• Extract NEMOGCM :
  

   svn co http://forge.ipsl.jussieu.fr/nemo/svn/tags/nemo_v3_3/NEMOGCM
      ( If you want to extract even Documentation: 
      svn co http://forge.ipsl.jussieu.fr/nemo/svn/tags/nemo_v3_3 )
  

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

   cd NEMOGCM/CONFIG
   ./makenemo -m SX8_BRODIE -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,...)

• Example of a mono-processor run :
  

   ./makenemo -m SX8_BRODIE -n ORCA2_LIM del_key "nproci=1 nprocj=1"
  

• Example of a multi-processor run (decomposition 2x4) :
  

   ./makenemo -m SX8_BRODIE -n ORCA2_LIM add_key "key_mpp_mpi nproci=2 nprocj=4" 
  

• 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 
   ln -s ../CONFIG/ORCA2_LIM/BLD/bin/nemo.exe bin/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
see : setupsimupage

• Submit Job :
  

   ./util/ins_job
   cd 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?