How to make a parallel run

Add a cpp key and compile

​http://www.nemo-ocean.eu/index.php//Using-NEMO/User-Guides/Advanced/How-to-add-modify-new-modules-or-new-cpp-keys

and then see:

​http://www.nemo-ocean.eu/index.php//Using-NEMO/User-Guides/Advanced/How-to-set-up-one-simulation#eztoc1210_5

• Add key in modipsl/config/ORCA2_LIM/scripts/BB_make.ldef :
  

  key_mpp_mpi
  

• Set number of processor in modipsl/modeles/NEMO/OPA_SRC/par_oce.F90 :
  

  set jpni, jpnj and jpnij    
  

• Do an ins_make :
  

  ./modipsl/util/ins_make
  

• Go in ORCA2_LIM directory :
  

  cd modipsl/config/ORCA2_LIM
  

• Compile :
  

  gmake
  

Configure config.card

• Set same number of processors at compiling time in modipsl/config/ORCA2_LIM/IGCM00/config.card: :
  

  #-- Total Number of Processors 
  JobNumProcTot=#proc at compiling time
  

• Enable run multi processors option in modipsl/config/ORCA2_LIM/IGCM00/config.card: :
  

  #-- Run Options :
  JobRunOptions='"-np "${BATCH_NUM_PROC_TOT}"'