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cheisey |
1.40 |
C $Header: /u/u0/gcmpack/MITgcm/model/src/forward_step.F,v 1.39 2002/11/20 19:08:25 cheisey Exp $ |
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adcroft |
1.15 |
C $Name: $ |
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adcroft |
1.1 |
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#include "CPP_OPTIONS.h" |
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cnh |
1.22 |
CBOP |
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C !ROUTINE: FORWARD_STEP |
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C !INTERFACE: |
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adcroft |
1.13 |
SUBROUTINE FORWARD_STEP( iloop, myTime, myIter, myThid ) |
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heimbach |
1.12 |
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cnh |
1.22 |
C !DESCRIPTION: \bv |
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C *================================================================== |
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C | SUBROUTINE forward_step |
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C | o Run the ocean model and, optionally, evaluate a cost function. |
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C *================================================================== |
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C | |
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C | THE_MAIN_LOOP is the toplevel routine for the Tangent Linear and |
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C | Adjoint Model Compiler (TAMC). 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 | |
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C *================================================================== |
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C \ev |
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adcroft |
1.1 |
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cnh |
1.22 |
C !USES: |
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IMPLICIT NONE |
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C == Global variables == |
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adcroft |
1.1 |
#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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heimbach |
1.12 |
#include "FFIELDS.h" |
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adcroft |
1.1 |
#ifdef ALLOW_NONHYDROSTATIC |
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#include "CG3D.h" |
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#endif |
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jmc |
1.27 |
#ifdef ALLOW_SHAP_FILT |
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#include "SHAP_FILT.h" |
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#endif |
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#ifdef ALLOW_ZONAL_FILT |
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#include "ZONAL_FILT.h" |
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#endif |
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heimbach |
1.12 |
#ifdef ALLOW_AUTODIFF_TAMC |
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heimbach |
1.30 |
# include "tamc.h" |
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# include "ctrl.h" |
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# include "ctrl_dummy.h" |
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# include "cost.h" |
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heimbach |
1.37 |
# include "EOS.h" |
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heimbach |
1.30 |
# ifdef INCLUDE_EXTERNAL_FORCING_PACKAGE |
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# include "exf_fields.h" |
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cheisey |
1.40 |
# ifdef ALLOW_BULK_FORCE |
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heimbach |
1.30 |
# include "exf_constants.h" |
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# endif |
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# endif |
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# ifdef ALLOW_OBCS |
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# include "OBCS.h" |
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# endif |
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heimbach |
1.12 |
#endif |
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cnh |
1.22 |
C !LOCAL VARIABLES: |
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C == Routine arguments == |
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adcroft |
1.13 |
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 myiter - iteration counter for this thread |
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C mytime - time counter for this thread |
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C mythid - thread number for this instance of the routine. |
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heimbach |
1.12 |
integer iloop |
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integer mythid |
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integer myiter |
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_RL mytime |
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jmc |
1.21 |
INTEGER bi,bj |
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heimbach |
1.12 |
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cnh |
1.22 |
CEOP |
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heimbach |
1.12 |
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#ifdef ALLOW_AUTODIFF_TAMC |
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heimbach |
1.14 |
C-- Reset the model iteration counter and the model time. |
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heimbach |
1.12 |
myiter = nIter0 + (iloop-1) |
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mytime = startTime + float(iloop-1)*deltaTclock |
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#endif |
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heimbach |
1.32 |
#if (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_AUTODIFF_MONITOR)) |
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heimbach |
1.16 |
C Include call to a dummy routine. Its adjoint will be |
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C called at the proper place in the adjoint code. |
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C The adjoint routine will print out adjoint values |
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C if requested. The location of the call is important, |
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C it has to be after the adjoint of the exchanges |
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C (DO_GTERM_BLOCKING_EXCHANGES). |
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CALL DUMMY_IN_STEPPING( myTime, myIter, myThid ) |
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heimbach |
1.26 |
CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid ) |
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heimbach |
1.16 |
#endif |
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jmc |
1.21 |
#ifdef EXACT_CONSERV |
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IF (exactConserv) THEN |
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C-- Update etaH(n+1) : |
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heimbach |
1.36 |
CALL TIMER_START('UPDATE_ETAH [FORWARD_STEP]',mythid) |
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jmc |
1.35 |
CALL UPDATE_ETAH( myTime, myIter, myThid ) |
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heimbach |
1.36 |
CALL TIMER_STOP ('UPDATE_ETAH [FORWARD_STEP]',mythid) |
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jmc |
1.21 |
ENDIF |
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#endif /* EXACT_CONSERV */ |
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jmc |
1.18 |
#ifdef NONLIN_FRSURF |
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C-- compute the future surface level thickness |
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jmc |
1.21 |
C according to etaH(n+1) |
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jmc |
1.18 |
IF ( nonlinFreeSurf.GT.0) THEN |
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heimbach |
1.36 |
CALL TIMER_START('CALC_SURF_DR [FORWARD_STEP]',mythid) |
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jmc |
1.21 |
CALL CALC_SURF_DR(etaH, myTime, myIter, myThid ) |
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heimbach |
1.36 |
CALL TIMER_STOP ('CALC_SURF_DR [FORWARD_STEP]',mythid) |
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jmc |
1.18 |
ENDIF |
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jmc |
1.21 |
#endif /* NONLIN_FRSURF */ |
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jmc |
1.18 |
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cheisey |
1.38 |
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adcroft |
1.13 |
C-- Load forcing/external data fields. |
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heimbach |
1.28 |
#ifdef ALLOW_AUTODIFF_TAMC |
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c************************************** |
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#include "checkpoint_lev1_directives.h" |
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c************************************** |
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heimbach |
1.23 |
#endif |
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cheisey |
1.38 |
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heimbach |
1.37 |
C-- Call external forcing package |
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cheisey |
1.38 |
cswdblk -- add --- |
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cheisey |
1.40 |
#ifdef ALLOW_BULK_FORCE |
133 |
cheisey |
1.38 |
CALL TIMER_START('BULKF_FIELDS_LOAD[THE_MAIN_LOOP]',mythid) |
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CALL BULKF_FIELDS_LOAD( mytime, myiter, mythid ) |
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CALL TIMER_STOP ('BULKF_FIELDS_LOAD[THE_MAIN_LOOP]',mythid) |
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c calculate qnet and empmr (and wind stress) |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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CALL BULKF_FORCING( bi,bj, mytime, myiter, mythid ) |
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ENDDO |
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ENDDO |
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c Update the tile edges. |
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_EXCH_XY_R8(Qnet, mythid) |
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_EXCH_XY_R8(EmPmR, mythid) |
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_EXCH_XY_R8(fu , mythid) |
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_EXCH_XY_R8(fv , mythid) |
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cswdblk -- end add --- |
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#endif |
149 |
cheisey |
1.39 |
#ifdef INCLUDE_EXTERNAL_FORCING_PACKAGE |
150 |
cheisey |
1.40 |
IF ( .not. useSEAICE .and. .not. useBulkForce ) THEN |
151 |
heimbach |
1.36 |
CALL TIMER_START('EXF_GETFORCING [FORWARD_STEP]',mythid) |
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CALL EXF_GETFORCING( mytime, myiter, mythid ) |
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CALL TIMER_STOP ('EXF_GETFORCING [FORWARD_STEP]',mythid) |
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ENDIF |
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heimbach |
1.12 |
#else |
156 |
cheisey |
1.40 |
IF ( .not. useSEAICE .and. .not. useBulkForce ) THEN |
157 |
heimbach |
1.36 |
CALL TIMER_START('EXTERNAL_FIELDS_LOAD[FORWARD_STEP]',mythid) |
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CALL EXTERNAL_FIELDS_LOAD( mytime, myiter, mythid ) |
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CALL TIMER_STOP ('EXTERNAL_FIELDS_LOAD[FORWARD_STEP]',mythid) |
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ENDIF |
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#endif /* INCLUDE_EXTERNAL_FORCING_PACKAGE */ |
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cheisey |
1.38 |
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164 |
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heimbach |
1.36 |
#ifdef ALLOW_SEAICE |
167 |
heimbach |
1.37 |
C-- Call sea ice model to compute forcing/external data fields. |
168 |
heimbach |
1.36 |
IF ( useSEAICE ) THEN |
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CALL TIMER_START('SEAICE_MODEL [FORWARD_STEP]',myThid) |
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cheisey |
1.38 |
Cxxxx CALL SEAICE_MODEL( myTime, myIter, myThid ) |
171 |
heimbach |
1.36 |
CALL TIMER_STOP ('SEAICE_MODEL [FORWARD_STEP]',myThid) |
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ENDIF |
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#endif ALLOW_SEAICE |
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adcroft |
1.15 |
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C-- Step forward fields and calculate time tendency terms. |
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heimbach |
1.36 |
CALL TIMER_START('THERMODYNAMICS [FORWARD_STEP]',mythid) |
177 |
adcroft |
1.15 |
CALL THERMODYNAMICS( myTime, myIter, myThid ) |
178 |
heimbach |
1.36 |
CALL TIMER_STOP ('THERMODYNAMICS [FORWARD_STEP]',mythid) |
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jmc |
1.35 |
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C-- do exchanges (needed for DYNAMICS) when using stagger time-step : |
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heimbach |
1.36 |
CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid) |
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jmc |
1.35 |
CALL DO_STAGGER_FIELDS_EXCHANGES( myTime, myIter, myThid ) |
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heimbach |
1.36 |
CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid) |
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jmc |
1.24 |
|
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#ifdef ALLOW_SHAP_FILT |
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jmc |
1.27 |
IF (useSHAP_FILT .AND. |
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& staggerTimeStep .AND. shap_filt_TrStagg ) THEN |
188 |
heimbach |
1.36 |
CALL TIMER_START('SHAP_FILT [FORWARD_STEP]',myThid) |
189 |
jmc |
1.24 |
CALL SHAP_FILT_APPLY_TS( gT, gS, myTime, myIter, myThid ) |
190 |
heimbach |
1.36 |
CALL TIMER_STOP ('SHAP_FILT [FORWARD_STEP]',myThid) |
191 |
jmc |
1.24 |
ENDIF |
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#endif |
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jmc |
1.27 |
#ifdef ALLOW_ZONAL_FILT |
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IF (useZONAL_FILT .AND. |
195 |
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& staggerTimeStep .AND. zonal_filt_TrStagg ) THEN |
196 |
heimbach |
1.36 |
CALL TIMER_START('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid) |
197 |
jmc |
1.27 |
CALL ZONAL_FILT_APPLY_TS( gT, gS, myThid ) |
198 |
heimbach |
1.36 |
CALL TIMER_STOP ('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid) |
199 |
jmc |
1.27 |
ENDIF |
200 |
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#endif |
201 |
heimbach |
1.12 |
|
202 |
adcroft |
1.13 |
C-- Step forward fields and calculate time tendency terms. |
203 |
adcroft |
1.19 |
IF ( momStepping ) THEN |
204 |
heimbach |
1.36 |
CALL TIMER_START('DYNAMICS [FORWARD_STEP]',mythid) |
205 |
heimbach |
1.12 |
CALL DYNAMICS( myTime, myIter, myThid ) |
206 |
heimbach |
1.36 |
CALL TIMER_STOP ('DYNAMICS [FORWARD_STEP]',mythid) |
207 |
adcroft |
1.19 |
ENDIF |
208 |
heimbach |
1.12 |
|
209 |
adcroft |
1.1 |
#ifdef ALLOW_NONHYDROSTATIC |
210 |
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C-- Step forward W field in N-H algorithm |
211 |
adcroft |
1.19 |
IF ( momStepping .AND. nonHydrostatic ) THEN |
212 |
heimbach |
1.36 |
CALL TIMER_START('CALC_GW [FORWARD_STEP]',myThid) |
213 |
heimbach |
1.12 |
CALL CALC_GW(myThid) |
214 |
heimbach |
1.36 |
CALL TIMER_STOP ('CALC_GW [FORWARD_STEP]',myThid) |
215 |
heimbach |
1.12 |
ENDIF |
216 |
adcroft |
1.1 |
#endif |
217 |
jmc |
1.18 |
|
218 |
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#ifdef NONLIN_FRSURF |
219 |
jmc |
1.21 |
C-- update hfacC,W,S and recip_hFac according to etaH(n+1) : |
220 |
jmc |
1.18 |
IF ( nonlinFreeSurf.GT.0) THEN |
221 |
heimbach |
1.36 |
CALL TIMER_START('UPDATE_SURF_DR [FORWARD_STEP]',mythid) |
222 |
jmc |
1.18 |
CALL UPDATE_SURF_DR( myTime, myIter, myThid ) |
223 |
heimbach |
1.36 |
CALL TIMER_STOP ('UPDATE_SURF_DR [FORWARD_STEP]',myThid) |
224 |
jmc |
1.18 |
ENDIF |
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C- update also CG2D matrix (and preconditioner) |
226 |
jmc |
1.33 |
IF ( momStepping .AND. nonlinFreeSurf.GT.2 ) THEN |
227 |
heimbach |
1.36 |
CALL TIMER_START('UPDATE_CG2D [FORWARD_STEP]',mythid) |
228 |
jmc |
1.18 |
CALL UPDATE_CG2D( myTime, myIter, myThid ) |
229 |
heimbach |
1.36 |
CALL TIMER_START('UPDATE_CG2D [FORWARD_STEP]',mythid) |
230 |
adcroft |
1.19 |
ENDIF |
231 |
jmc |
1.18 |
#endif |
232 |
adcroft |
1.1 |
|
233 |
jmc |
1.27 |
C-- Apply Filters to u*,v* before SOLVE_FOR_PRESSURE |
234 |
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#ifdef ALLOW_SHAP_FILT |
235 |
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IF (useSHAP_FILT .AND. shap_filt_uvStar) THEN |
236 |
heimbach |
1.36 |
CALL TIMER_START('SHAP_FILT [FORWARD_STEP]',myThid) |
237 |
jmc |
1.27 |
CALL SHAP_FILT_APPLY_UV( gUnm1,gVnm1, myTime,myIter,myThid ) |
238 |
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IF (implicDiv2Dflow.LT.1.) THEN |
239 |
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C-- Explicit+Implicit part of the Barotropic Flow Divergence |
240 |
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C => Filtering of uVel,vVel is necessary |
241 |
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CALL SHAP_FILT_APPLY_UV( uVel,vVel, myTime,myIter,myThid ) |
242 |
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ENDIF |
243 |
heimbach |
1.36 |
CALL TIMER_STOP ('SHAP_FILT [FORWARD_STEP]',myThid) |
244 |
jmc |
1.27 |
ENDIF |
245 |
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#endif |
246 |
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#ifdef ALLOW_ZONAL_FILT |
247 |
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IF (useZONAL_FILT .AND. zonal_filt_uvStar) THEN |
248 |
heimbach |
1.36 |
CALL TIMER_START('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid) |
249 |
jmc |
1.27 |
CALL ZONAL_FILT_APPLY_UV( gUnm1, gVnm1, myThid ) |
250 |
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IF (implicDiv2Dflow.LT.1.) THEN |
251 |
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C-- Explicit+Implicit part of the Barotropic Flow Divergence |
252 |
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C => Filtering of uVel,vVel is necessary |
253 |
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CALL ZONAL_FILT_APPLY_UV( uVel, vVel, myThid ) |
254 |
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ENDIF |
255 |
heimbach |
1.36 |
CALL TIMER_STOP ('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid) |
256 |
jmc |
1.27 |
ENDIF |
257 |
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#endif |
258 |
heimbach |
1.12 |
|
259 |
adcroft |
1.1 |
C-- Solve elliptic equation(s). |
260 |
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C Two-dimensional only for conventional hydrostatic or |
261 |
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C three-dimensional for non-hydrostatic and/or IGW scheme. |
262 |
adcroft |
1.19 |
IF ( momStepping ) THEN |
263 |
heimbach |
1.36 |
CALL TIMER_START('SOLVE_FOR_PRESSURE [FORWARD_STEP]',myThid) |
264 |
jmc |
1.31 |
CALL SOLVE_FOR_PRESSURE(myTime, myIter, myThid) |
265 |
heimbach |
1.36 |
CALL TIMER_STOP ('SOLVE_FOR_PRESSURE [FORWARD_STEP]',myThid) |
266 |
adcroft |
1.19 |
ENDIF |
267 |
adcroft |
1.1 |
|
268 |
heimbach |
1.37 |
#ifdef ALLOW_AUTODIFF_TAMC |
269 |
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cph This is needed because convective_adjustment calls |
270 |
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cph find_rho which may use pressure() |
271 |
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CADJ STORE pressure = comlev1, key = ikey_dynamics |
272 |
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#endif |
273 |
adcroft |
1.5 |
C-- Correct divergence in flow field and cycle time-stepping |
274 |
jmc |
1.7 |
C arrays (for all fields) ; update time-counter |
275 |
heimbach |
1.12 |
myIter = nIter0 + iLoop |
276 |
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myTime = startTime + deltaTClock * float(iLoop) |
277 |
heimbach |
1.36 |
CALL TIMER_START('THE_CORRECTION_STEP [FORWARD_STEP]',myThid) |
278 |
heimbach |
1.12 |
CALL THE_CORRECTION_STEP(myTime, myIter, myThid) |
279 |
heimbach |
1.36 |
CALL TIMER_STOP ('THE_CORRECTION_STEP [FORWARD_STEP]',myThid) |
280 |
adcroft |
1.5 |
|
281 |
adcroft |
1.1 |
C-- Do "blocking" sends and receives for tendency "overlap" terms |
282 |
heimbach |
1.36 |
c CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid) |
283 |
jmc |
1.7 |
c CALL DO_GTERM_BLOCKING_EXCHANGES( myThid ) |
284 |
heimbach |
1.36 |
c CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid) |
285 |
adcroft |
1.5 |
|
286 |
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C-- Do "blocking" sends and receives for field "overlap" terms |
287 |
heimbach |
1.36 |
CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid) |
288 |
adcroft |
1.5 |
CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid ) |
289 |
heimbach |
1.36 |
CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid) |
290 |
adcroft |
1.20 |
|
291 |
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#ifdef ALLOW_FLT |
292 |
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C-- Calculate float trajectories |
293 |
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IF (useFLT) THEN |
294 |
heimbach |
1.36 |
CALL TIMER_START('FLOATS [FORWARD_STEP]',myThid) |
295 |
adcroft |
1.20 |
CALL FLT_MAIN(myIter,myTime, myThid) |
296 |
heimbach |
1.36 |
CALL TIMER_STOP ('FLOATS [FORWARD_STEP]',myThid) |
297 |
adcroft |
1.20 |
ENDIF |
298 |
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#endif |
299 |
heimbach |
1.12 |
|
300 |
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#ifndef EXCLUDE_MONITOR |
301 |
|
|
C-- Check status of solution (statistics, cfl, etc...) |
302 |
heimbach |
1.36 |
CALL TIMER_START('MONITOR [FORWARD_STEP]',mythid) |
303 |
heimbach |
1.12 |
CALL MONITOR( myIter, myTime, myThid ) |
304 |
heimbach |
1.36 |
CALL TIMER_STOP ('MONITOR [FORWARD_STEP]',myThid) |
305 |
heimbach |
1.12 |
#endif /* EXCLUDE_MONITOR */ |
306 |
adcroft |
1.1 |
|
307 |
jmc |
1.7 |
C-- Do IO if needed. |
308 |
heimbach |
1.36 |
CALL TIMER_START('DO_THE_MODEL_IO [FORWARD_STEP]',myThid) |
309 |
heimbach |
1.12 |
CALL DO_THE_MODEL_IO( myTime, myIter, myThid ) |
310 |
heimbach |
1.36 |
CALL TIMER_STOP ('DO_THE_MODEL_IO [FORWARD_STEP]',myThid) |
311 |
adcroft |
1.1 |
|
312 |
|
|
C-- Save state for restarts |
313 |
jmc |
1.7 |
C Note: (jmc: is it still the case after ckp35 ?) |
314 |
adcroft |
1.1 |
C ===== |
315 |
|
|
C Because of the ordering of the timestepping code and |
316 |
|
|
C tendency term code at end of loop model arrays hold |
317 |
|
|
C U,V,T,S at "time-level" N but gu, gv, gs, gt, guNM1,... |
318 |
|
|
C at "time-level" N+1/2 (guNM1 at "time-level" N+1/2 is |
319 |
jmc |
1.10 |
C gu at "time-level" N-1/2) and etaN at "time-level" N+1/2. |
320 |
adcroft |
1.1 |
C where N = I+timeLevBase-1 |
321 |
|
|
C Thus a checkpoint contains U.0000000000, GU.0000000001 and |
322 |
jmc |
1.10 |
C etaN.0000000001 in the indexing scheme used for the model |
323 |
adcroft |
1.1 |
C "state" files. This example is referred to as a checkpoint |
324 |
|
|
C at time level 1 |
325 |
heimbach |
1.36 |
CALL TIMER_START('WRITE_CHECKPOINT [FORWARD_STEP]',myThid) |
326 |
adcroft |
1.1 |
CALL WRITE_CHECKPOINT( |
327 |
heimbach |
1.12 |
& .FALSE., myTime, myIter, myThid ) |
328 |
heimbach |
1.36 |
CALL TIMER_STOP ('WRITE_CHECKPOINT [FORWARD_STEP]',myThid) |
329 |
adcroft |
1.1 |
|
330 |
|
|
END |