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C $Header: /u/gcmpack/MITgcm/model/src/main_do_loop.F,v 1.7 2013/03/29 23:08:55 heimbach Exp $ |
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C $Name: $ |
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|
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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#ifdef ALLOW_OBCS |
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# include "OBCS_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_SEAICE |
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# include "SEAICE_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_GENERIC_ADVDIFF |
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# include "GAD_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_GMREDI |
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# include "GMREDI_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_STREAMICE |
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# include "STREAMICE_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_GGL90 |
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# include "GGL90_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_EXF |
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# include "EXF_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_CTRL |
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# include "CTRL_OPTIONS.h" |
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#endif |
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|
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CBOP |
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C !ROUTINE: MAIN_DO_LOOP |
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C !INTERFACE: |
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SUBROUTINE MAIN_DO_LOOP( myTime, myIter, myThid ) |
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|
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C !DESCRIPTION: \bv |
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C *================================================================* |
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C | SUBROUTINE the_loop_body |
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C | o Run the ocean model and evaluate the specified cost function. |
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C *================================================================* |
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C | |
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C | MAIN_DO_LOOP is the toplevel routine for the Tangent Linear and |
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C | Adjoint Model Compiler (TAMC). |
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C | For this purpose the initialization |
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C | of the model was split into two parts. Those parameters that do |
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C | not depend on a specific model run are set in INITIALISE_FIXED, |
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C | whereas those that do depend on the specific realization are |
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C | initialized in INITIALISE_VARIA. |
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C | This routine is to be used in conjuction with the MITgcmuv |
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C | checkpoint 37. |
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C *================================================================* |
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C \ev |
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|
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C !USES: |
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IMPLICIT NONE |
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C == Global variables == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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|
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c************************************** |
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#ifdef ALLOW_AUTODIFF |
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# ifndef ALLOW_AUTODIFF_OPENAD |
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|
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c These includes are needed for |
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c AD-checkpointing. |
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c They provide the fields to be stored. |
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|
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# include "AUTODIFF_MYFIELDS.h" |
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# include "GRID.h" |
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# include "DYNVARS.h" |
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# include "SURFACE.h" |
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# include "FFIELDS.h" |
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# include "EOS.h" |
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# include "AUTODIFF.h" |
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|
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# ifdef ALLOW_GENERIC_ADVDIFF |
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# include "GAD.h" |
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# include "GAD_SOM_VARS.h" |
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# endif |
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# ifdef ALLOW_MOM_FLUXFORM |
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# include "MOM_FLUXFORM.h" |
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# endif |
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# ifdef ALLOW_CD_CODE |
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# include "CD_CODE_VARS.h" |
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# endif |
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# ifdef ALLOW_OBCS |
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# include "OBCS_PARAMS.h" |
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# include "OBCS_FIELDS.h" |
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# include "OBCS_SEAICE.h" |
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# ifdef ALLOW_PTRACERS |
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# include "OBCS_PTRACERS.h" |
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# endif |
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# endif |
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# ifdef ALLOW_EXF |
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# include "EXF_FIELDS.h" |
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# ifdef ALLOW_BULKFORMULAE |
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# include "EXF_CONSTANTS.h" |
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# endif |
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# endif /* ALLOW_EXF */ |
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# ifdef ALLOW_SEAICE |
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# include "SEAICE_SIZE.h" |
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# include "SEAICE.h" |
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# include "SEAICE_PARAMS.h" |
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# include "SEAICE_COST.h" |
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# include "SEAICE_TRACER.h" |
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# endif |
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# ifdef ALLOW_SALT_PLUME |
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# include "SALT_PLUME.h" |
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# endif |
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# ifdef ALLOW_THSICE |
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# include "THSICE_SIZE.h" |
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# include "THSICE_VARS.h" |
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# endif |
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# ifdef ALLOW_EBM |
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# include "EBM.h" |
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# endif |
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# ifdef ALLOW_RBCS |
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# include "RBCS_SIZE.h" |
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# include "RBCS_FIELDS.h" |
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# endif |
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# ifdef ALLOW_OFFLINE |
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# include "OFFLINE.h" |
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# endif |
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# ifdef ALLOW_CG2D_NSA |
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# include "CG2D.h" |
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# endif |
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# ifdef ALLOW_DIVIDED_ADJOINT_MPI |
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# include "mpif.h" |
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# endif |
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|
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# include "tamc.h" |
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|
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# ifdef ALLOW_GGL90 |
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# include "GGL90.h" |
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# endif |
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# ifdef ALLOW_PROFILES |
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# include "profiles.h" |
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# endif |
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|
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# ifdef ALLOW_ECCO_EVOLUTION |
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# ifdef ALLOW_ECCO |
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# include "ecco_cost.h" |
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# endif |
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# endif |
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|
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# endif /* undef ALLOW_AUTODIFF_OPENAD */ |
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|
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# ifdef ALLOW_CTRL |
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# include "CTRL_SIZE.h" |
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# include "ctrl.h" |
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# include "ctrl_dummy.h" |
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# include "CTRL_GENARR.h" |
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# endif |
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# ifdef ALLOW_COST |
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# include "cost.h" |
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# endif |
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|
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# ifdef ALLOW_PTRACERS |
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# include "PTRACERS_SIZE.h" |
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# include "PTRACERS_FIELDS.h" |
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# include "PTRACERS_START.h" |
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# endif |
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# ifdef ALLOW_GCHEM |
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# include "GCHEM_FIELDS.h" |
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# endif |
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# ifdef ALLOW_CFC |
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# include "CFC.h" |
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# endif |
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# ifdef ALLOW_DIC |
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# include "DIC_VARS.h" |
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# include "DIC_LOAD.h" |
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# include "DIC_ATMOS.h" |
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# include "DIC_CTRL.h" |
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# include "DIC_COST.h" |
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# endif |
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# ifdef ALLOW_SHELFICE |
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# include "SHELFICE.h" |
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# include "SHELFICE_COST.h" |
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# endif |
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# ifdef ALLOW_STREAMICE |
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# include "STREAMICE.h" |
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# include "STREAMICE_ADV.h" |
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# include "STREAMICE_BDRY.h" |
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# include "STREAMICE_CG.h" |
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# endif |
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|
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#endif /* ALLOW_AUTODIFF */ |
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c************************************** |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C note: under the multi-threaded model myiter and |
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C mytime are local variables passed around as routine |
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C arguments. Although this is fiddly it saves the need to |
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C impose additional synchronisation points when they are |
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C updated. |
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C myTime :: time counter for this thread |
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C myIter :: iteration counter for this thread |
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C myThid :: thread number for this instance of the routine. |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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|
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C !FUNCTIONS: |
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C == Functions == |
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|
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C !LOCAL VARIABLES: |
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C == Local variables == |
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INTEGER iloop |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef STORE_LOADEDREC_TEST |
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INTEGER bi,bj |
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#endif /* STORE_LOADEDREC_TEST */ |
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#endif |
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|
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CEOP |
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|
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#ifdef ALLOW_DEBUG |
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IF (debugMode) CALL DEBUG_ENTER('MAIN_DO_LOOP',myThid) |
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#endif |
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|
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c >>>>>>>>>>>>>>>>>>>>>>>>>>> LOOP <<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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c >>>>>>>>>>>>>>>>>>>>>>>>>>> STARTS <<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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|
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c++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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#ifndef ALLOW_AUTODIFF_OPENAD |
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c++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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# ifdef ALLOW_AUTODIFF |
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# ifdef ALLOW_TAMC_CHECKPOINTING |
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|
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max_lev4=nTimeSteps/(nchklev_1*nchklev_2*nchklev_3)+1 |
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max_lev3=nTimeSteps/(nchklev_1*nchklev_2)+1 |
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max_lev2=nTimeSteps/nchklev_1+1 |
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|
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c************************************** |
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# ifdef ALLOW_DIVIDED_ADJOINT |
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CADJ loop = divided |
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# endif |
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c************************************** |
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|
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# ifdef AUTODIFF_4_LEVEL_CHECKPOINT |
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do ilev_4 = 1,nchklev_4 |
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if(ilev_4.le.max_lev4) then |
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c************************************** |
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#ifdef ALLOW_AUTODIFF_WHTAPEIO |
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CALL AUTODIFF_WHTAPEIO_SYNC( 4 , 0, mythid ) |
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#endif |
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CALL AUTODIFF_STORE( myThid ) |
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#include "checkpoint_lev4_directives.h" |
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CALL AUTODIFF_RESTORE( myThid ) |
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#ifdef ALLOW_AUTODIFF_WHTAPEIO |
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CALL AUTODIFF_WHTAPEIO_SYNC( 4 , 1, mythid ) |
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#endif |
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c************************************** |
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c-- Initialise storage for the middle loop. |
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CADJ INIT tapelev3 = USER |
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# endif /* AUTODIFF_4_LEVEL_CHECKPOINT */ |
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|
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# ifndef AUTODIFF_2_LEVEL_CHECKPOINT |
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do ilev_3 = 1,nchklev_3 |
262 |
if(ilev_3.le.max_lev3) then |
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c************************************** |
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#ifdef ALLOW_AUTODIFF_WHTAPEIO |
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CALL AUTODIFF_WHTAPEIO_SYNC( 3 , 0, mythid ) |
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#endif |
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CALL AUTODIFF_STORE( myThid ) |
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#include "checkpoint_lev3_directives.h" |
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CALL AUTODIFF_RESTORE( myThid ) |
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#ifdef ALLOW_AUTODIFF_WHTAPEIO |
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CALL AUTODIFF_WHTAPEIO_SYNC( 3 , 1, mythid ) |
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#endif |
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c************************************** |
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c-- Initialise storage for the middle loop. |
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CADJ INIT tapelev2 = USER |
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# endif /* AUTODIFF_2_LEVEL_CHECKPOINT */ |
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|
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do ilev_2 = 1,nchklev_2 |
279 |
if(ilev_2.le.max_lev2) then |
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c************************************** |
281 |
#ifdef ALLOW_AUTODIFF_WHTAPEIO |
282 |
CALL AUTODIFF_WHTAPEIO_SYNC( 2 , 0, mythid ) |
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#endif |
284 |
CALL AUTODIFF_STORE( myThid ) |
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#include "checkpoint_lev2_directives.h" |
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CALL AUTODIFF_RESTORE( myThid ) |
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#ifdef ALLOW_AUTODIFF_WHTAPEIO |
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CALL AUTODIFF_WHTAPEIO_SYNC( 2 , 1, mythid ) |
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#endif |
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c************************************** |
291 |
|
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# endif /* ALLOW_TAMC_CHECKPOINTING */ |
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|
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c************************************** |
295 |
c-- |
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c-- Initialize storage for the innermost loop. |
297 |
c-- Always check common block sizes for the checkpointing! |
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c-- |
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CADJ INIT comlev1 = COMMON,nchklev_1 |
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CADJ INIT comlev1_bibj = COMMON,nchklev_1*nsx*nsy*nthreads_chkpt |
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CADJ INIT comlev1_bibj_k = COMMON,nchklev_1*nsx*nsy*nr*nthreads_chkpt |
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c-- |
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# ifdef ALLOW_KPP |
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CADJ INIT comlev1_kpp = COMMON,nchklev_1*nsx*nsy |
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CADJ INIT comlev1_kpp_k = COMMON,nchklev_1*nsx*nsy*nr |
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# endif /* ALLOW_KPP */ |
307 |
c-- |
308 |
# ifdef ALLOW_GMREDI |
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CADJ INIT comlev1_gmredi_k_gad |
310 |
CADJ & = COMMON,nchklev_1*nsx*nsy*nr*nthreads_chkpt*maxpass |
311 |
# endif /* ALLOW_GMREDI */ |
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c-- |
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# ifdef ALLOW_PTRACERS |
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CADJ INIT comlev1_bibj_ptracers = COMMON, |
315 |
CADJ & nchklev_1*nsx*nsy*nthreads_chkpt*PTRACERS_num |
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CADJ INIT comlev1_bibj_k_ptracers = COMMON, |
317 |
CADJ & nchklev_1*nsx*nsy*nthreads_chkpt*PTRACERS_num*nr |
318 |
# endif /* ALLOW_PTRACERS */ |
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c-- |
320 |
# ifndef DISABLE_MULTIDIM_ADVECTION |
321 |
CADJ INIT comlev1_bibj_gad = COMMON, |
322 |
CADJ & nchklev_1*nsx*nsy*nthreads_chkpt*maxpass |
323 |
CADJ INIT comlev1_bibj_k_gad = COMMON, |
324 |
CADJ & nchklev_1*nsx*nsy*nr*nthreads_chkpt*maxpass |
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CADJ INIT comlev1_bibj_k_gad_pass = COMMON, |
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CADJ & nchklev_1*nsx*nsy*nr*nthreads_chkpt*maxpass*maxpass |
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# endif /* DISABLE_MULTIDIM_ADVECTION */ |
328 |
c-- |
329 |
# ifdef ALLOW_MOM_COMMON |
330 |
# ifndef AUTODIFF_DISABLE_LEITH |
331 |
CADJ INIT comlev1_mom_ijk_loop |
332 |
CADJ & = COMMON,nchklev_1* |
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CADJ & (snx+2*olx)*nsx*(sny+2*oly)*nsy*nr*nthreads_chkpt |
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# endif /* AUTODIFF_DISABLE_LEITH */ |
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# endif /* ALLOW_MOM_COMMON */ |
336 |
c-- |
337 |
# if (defined (ALLOW_EXF) && defined (ALLOW_BULKFORMULAE)) |
338 |
CADJ INIT comlev1_exf_1 |
339 |
CADJ & = COMMON,nchklev_1*snx*nsx*sny*nsy*nthreads_chkpt |
340 |
CADJ INIT comlev1_exf_2 |
341 |
CADJ & = COMMON,niter_bulk*nchklev_1*snx*nsx*sny*nsy*nthreads_chkpt |
342 |
# endif /* ALLOW_BULKFORMULAE */ |
343 |
c-- |
344 |
# ifdef ALLOW_SEAICE |
345 |
# ifdef SEAICE_ALLOW_DYNAMICS |
346 |
CADJ INIT comlev1_dynsol = COMMON,nchklev_1*MPSEUDOTIMESTEPS |
347 |
# ifdef SEAICE_LSR_ADJOINT_ITER |
348 |
CADJ INIT comlev1_dyniter = |
349 |
CADJ & COMMON,nchklev_1*MPSEUDOTIMESTEPS*SOLV_MAX_FIXED |
350 |
# endif |
351 |
# endif |
352 |
# ifdef SEAICE_ALLOW_EVP |
353 |
CADJ INIT comlev1_evp = COMMON,nEVPstepMax*nchklev_1 |
354 |
# endif |
355 |
# ifdef SEAICE_MULTICATEGORY |
356 |
CADJ INIT comlev1_multdim |
357 |
CADJ & = COMMON,nchklev_1*nsx*nsy*nthreads_chkpt*multdim |
358 |
# endif |
359 |
# ifndef DISABLE_MULTIDIM_ADVECTION |
360 |
CADJ INIT comlev1_bibj_k_gadice = COMMON, |
361 |
CADJ & nchklev_1*nsx*nsy*nthreads_chkpt*maxpass |
362 |
CADJ INIT comlev1_bibj_k_gadice_pass = COMMON, |
363 |
CADJ & nchklev_1*nsx*nsy*nthreads_chkpt*maxpass*maxpass |
364 |
# endif /* DISABLE_MULTIDIM_ADVECTION */ |
365 |
# endif /* ALLOW_SEAICE */ |
366 |
c-- |
367 |
# ifdef ALLOW_THSICE |
368 |
CADJ INIT comlev1_thsice_1 |
369 |
CADJ & = COMMON,nchklev_1*snx*nsx*sny*nsy*nthreads_chkpt |
370 |
CADJ INIT comlev1_thsice_2 |
371 |
CADJ & = COMMON,nchklev_1*snx*nsx*sny*nsy*nlyr*nthreads_chkpt |
372 |
CADJ INIT comlev1_thsice_3 |
373 |
CADJ & = COMMON,nchklev_1*snx*nsx*sny*nsy*MaxTsf*nthreads_chkpt |
374 |
CADJ INIT comlev1_thsice_4 |
375 |
CADJ & = COMMON,nchklev_1*nsx*nsy*maxpass*nthreads_chkpt |
376 |
# endif /* ALLOW_THSICE */ |
377 |
c-- |
378 |
# ifdef ALLOW_STREAMICE |
379 |
CADJ INIT comlev1_stream_nl = COMMON,nchklev_1*streamice_max_nl |
380 |
CADJ INIT comlev1_stream_front = COMMON,nchklev_1*4 |
381 |
CADJ INIT comlev1_stream_ij |
382 |
CADJ & = COMMON,nchklev_1*4*(snx+2)*nsx*(sny+2)*nsy |
383 |
CADJ INIT comlev1_stream_hybrid |
384 |
CADJ & = COMMON,nchklev_1*snx*nsx*sny*nsy*nr*nthreads_chkpt |
385 |
# endif |
386 |
c-- |
387 |
# ifdef ALLOW_CG2D_NSA |
388 |
CADJ INIT comlev1_cg2d |
389 |
CADJ & = COMMON,nchklev_1*nthreads_chkpt |
390 |
CADJ INIT comlev1_cg2d_iter |
391 |
CADJ & = COMMON,nchklev_1*nthreads_chkpt*numItersMax |
392 |
# endif |
393 |
c-- |
394 |
c************************************** |
395 |
|
396 |
#ifdef STORE_LOADEDREC_TEST |
397 |
DO bj = myByLo(myThid), myByHi(myThid) |
398 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
399 |
loadedRec(bi,bj) = 0 |
400 |
ENDDO |
401 |
ENDDO |
402 |
#endif /* STORE_LOADEDREC_TEST */ |
403 |
|
404 |
#ifdef ALLOW_TAMC_CHECKPOINTING |
405 |
|
406 |
do ilev_1 = 1,nchklev_1 |
407 |
|
408 |
c-- The if-statement below introduces a some flexibility in the |
409 |
c-- choice of the 3-tupel ( nchklev_1, nchklev_2, nchklev_3 ). |
410 |
|
411 |
iloop = (ilev_2 - 1)*nchklev_1 + ilev_1 |
412 |
# ifndef AUTODIFF_2_LEVEL_CHECKPOINT |
413 |
& + (ilev_3 - 1)*nchklev_2*nchklev_1 |
414 |
# endif |
415 |
# ifdef AUTODIFF_4_LEVEL_CHECKPOINT |
416 |
& + (ilev_4 - 1)*nchklev_3*nchklev_2*nchklev_1 |
417 |
# endif |
418 |
|
419 |
if ( iloop .le. nTimeSteps ) then |
420 |
|
421 |
# else /* ALLOW_TAMC_CHECKPOINTING undefined */ |
422 |
|
423 |
DO iloop = 1, nTimeSteps |
424 |
|
425 |
# endif /* ALLOW_TAMC_CHECKPOINTING */ |
426 |
# endif /* ALLOW_AUTODIFF */ |
427 |
|
428 |
#endif /* undef ALLOW_AUTODIFF_OPENAD */ |
429 |
|
430 |
#ifdef ALLOW_AUTODIFF_OPENAD |
431 |
DO iloop = 1, nTimeSteps |
432 |
#endif |
433 |
|
434 |
#ifndef ALLOW_AUTODIFF |
435 |
|
436 |
c-- Start the main loop of adjoint_Objfunc. Automatic differentiation |
437 |
c-- NOT enabled. |
438 |
DO iloop = 1, nTimeSteps |
439 |
|
440 |
#endif /* ALLOW_AUTODIFF */ |
441 |
|
442 |
c-- >>> Loop body start <<< |
443 |
|
444 |
#ifdef ALLOW_AUTODIFF_TAMC |
445 |
nIter0 = NINT( (startTime-baseTime)/deltaTClock ) |
446 |
# ifndef ALLOW_AUTODIFF_OPENAD |
447 |
ikey_dynamics = ilev_1 |
448 |
# endif |
449 |
#endif |
450 |
|
451 |
#ifdef ALLOW_ECCO |
452 |
#ifdef ALLOW_ECCO_EVOLUTION |
453 |
#ifdef ALLOW_DEBUG |
454 |
IF (debugMode) CALL DEBUG_CALL('cost_averagesfields',myThid) |
455 |
#endif |
456 |
c-- Accumulate time averages of temperature, salinity |
457 |
#ifdef ALLOW_AUTODIFF |
458 |
C-- Reset the model iteration counter and the model time. |
459 |
myIter = nIter0 + (iloop-1) |
460 |
myTime = startTime + float(iloop-1)*deltaTClock |
461 |
#endif |
462 |
CALL TIMER_START('COST_AVERAGESFIELDS [MAIN_DO_LOOP]',mythid) |
463 |
CALL COST_AVERAGESFIELDS( mytime, mythid ) |
464 |
CALL TIMER_STOP ('COST_AVERAGESFIELDS [MAIN_DO_LOOP]',mythid) |
465 |
#endif /* ALLOW_ECCO_EVOLUTION */ |
466 |
#endif /* ALLOW_ECCO */ |
467 |
|
468 |
#ifdef ALLOW_PROFILES |
469 |
IF (usePROFILES) THEN |
470 |
#ifdef ALLOW_DEBUG |
471 |
IF (debugMode) CALL DEBUG_CALL('profiles_inloop',myThid) |
472 |
#endif |
473 |
c-- Accumulate in-situ time averages of theta, salt, and SSH. |
474 |
#ifdef ALLOW_AUTODIFF |
475 |
C-- Reset the model iteration counter and the model time. |
476 |
myIter = nIter0 + (iloop-1) |
477 |
myTime = startTime + float(iloop-1)*deltaTClock |
478 |
#endif |
479 |
CALL TIMER_START('PROFILES_INLOOP [MAIN_DO_LOOP]', mythid) |
480 |
CALL PROFILES_INLOOP( mytime, mythid ) |
481 |
CALL TIMER_STOP ('PROFILES_INLOOP [MAIN_DO_LOOP]', mythid) |
482 |
ENDIF |
483 |
#endif |
484 |
|
485 |
#ifdef ALLOW_DEBUG |
486 |
IF (debugMode) CALL DEBUG_CALL('FORWARD_STEP',myThid) |
487 |
#endif |
488 |
|
489 |
#ifdef ALLOW_ATM2D |
490 |
CALL TIMER_START('FORWARD_STEP_ATM2D [MAIN_DO_LOOP]',mythid) |
491 |
CALL FORWARD_STEP_ATM2D( iloop, mytime, myiter, mythid ) |
492 |
CALL TIMER_STOP ('FORWARD_STEP_ATM2D [MAIN_DO_LOOP]',mythid) |
493 |
#else |
494 |
CALL TIMER_START('FORWARD_STEP [MAIN_DO_LOOP]',mythid) |
495 |
CALL FORWARD_STEP( iloop, mytime, myiter, mythid ) |
496 |
CALL TIMER_STOP ('FORWARD_STEP [MAIN_DO_LOOP]',mythid) |
497 |
#endif |
498 |
|
499 |
c-- >>> Loop body end <<< |
500 |
#ifdef ALLOW_AUTODIFF |
501 |
# ifndef ALLOW_AUTODIFF_OPENAD |
502 |
|
503 |
# ifdef ALLOW_TAMC_CHECKPOINTING |
504 |
endif |
505 |
enddo |
506 |
endif |
507 |
enddo |
508 |
# ifndef AUTODIFF_2_LEVEL_CHECKPOINT |
509 |
endif |
510 |
enddo |
511 |
# endif |
512 |
# ifdef AUTODIFF_4_LEVEL_CHECKPOINT |
513 |
endif |
514 |
enddo |
515 |
# endif |
516 |
# else /* ndef ALLOW_TAMC_CHECKPOINTING */ |
517 |
ENDDO |
518 |
# endif /* ALLOW_TAMC_CHECKPOINTING */ |
519 |
# else /* ndef ALLOW_AUTODIFF_OPENAD */ |
520 |
ENDDO |
521 |
# endif /* ALLOW_AUTODIFF_OPENAD */ |
522 |
#else /* ALLOW_AUTODIFF */ |
523 |
ENDDO |
524 |
#endif /* ALLOW_AUTODIFF */ |
525 |
|
526 |
#ifdef ALLOW_DEBUG |
527 |
IF (debugMode) CALL DEBUG_LEAVE('MAIN_DO_LOOP',myThid) |
528 |
#endif |
529 |
|
530 |
RETURN |
531 |
END |