/[MITgcm]/MITgcm/model/src/forward_step.F
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revision 1.31 by jmc, Fri Feb 8 22:14:37 2002 UTC revision 1.165 by heimbach, Fri Feb 13 21:56:48 2009 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2  C $Name$  C $Name$
3    
4    #include "PACKAGES_CONFIG.h"
5  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
6    
7    #ifdef ALLOW_GMREDI
8    # include "GMREDI_OPTIONS.h"
9    #endif
10    #ifdef ALLOW_OBCS
11    # include "OBCS_OPTIONS.h"
12    #endif
13    #ifdef ALLOW_SEAICE
14    # include "SEAICE_OPTIONS.h"
15    #endif
16    
17  CBOP  CBOP
18  C     !ROUTINE: FORWARD_STEP  C     !ROUTINE: FORWARD_STEP
19  C     !INTERFACE:  C     !INTERFACE:
# Line 17  C     | Line 28  C     |
28  C     | THE_MAIN_LOOP is the toplevel routine for the Tangent Linear and  C     | THE_MAIN_LOOP is the toplevel routine for the Tangent Linear and
29  C     | Adjoint Model Compiler (TAMC). For this purpose the initialization  C     | Adjoint Model Compiler (TAMC). For this purpose the initialization
30  C     | of the model was split into two parts. Those parameters that do  C     | of the model was split into two parts. Those parameters that do
31  C     | not depend on a specific model run are set in INITIALISE_FIXED,    C     | not depend on a specific model run are set in INITIALISE_FIXED,
32  C     | whereas those that do depend on the specific realization are  C     | whereas those that do depend on the specific realization are
33  C     | initialized in INITIALISE_VARIA.    C     | initialized in INITIALISE_VARIA.
34  C     |  C     |
35  C     *==================================================================  C     *==================================================================
36  C     \ev  C     \ev
# Line 31  C     == Global variables == Line 42  C     == Global variables ==
42  #include "EEPARAMS.h"  #include "EEPARAMS.h"
43  #include "PARAMS.h"  #include "PARAMS.h"
44  #include "DYNVARS.h"  #include "DYNVARS.h"
 #include "FFIELDS.h"  
45    
46  #ifdef ALLOW_NONHYDROSTATIC  #ifdef ALLOW_MNC
47  #include "CG3D.h"  #include "MNC_PARAMS.h"
48    #endif
49    
50    #ifdef HAVE_SIGREG
51    #include "SIGREG.h"
52  #endif  #endif
53    
54  #ifdef ALLOW_SHAP_FILT  #ifdef ALLOW_SHAP_FILT
55  #include "SHAP_FILT.h"  # include "SHAP_FILT.h"
56  #endif  #endif
57  #ifdef ALLOW_ZONAL_FILT  #ifdef ALLOW_ZONAL_FILT
58  #include "ZONAL_FILT.h"  # include "ZONAL_FILT.h"
59    #endif
60    #ifdef COMPONENT_MODULE
61    # include "CPL_PARAMS.h"
62  #endif  #endif
63    
64  #ifdef ALLOW_AUTODIFF_TAMC  #ifdef ALLOW_AUTODIFF_TAMC
65    # include "FFIELDS.h"
66    # include "SURFACE.h"
67    
68  # include "tamc.h"  # include "tamc.h"
69  # include "ctrl.h"  # include "ctrl.h"
70  # include "ctrl_dummy.h"  # include "ctrl_dummy.h"
71  # include "cost.h"  # include "cost.h"
72  # ifdef INCLUDE_EXTERNAL_FORCING_PACKAGE  # include "EOS.h"
73  #  include "exf_fields.h"  # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
74    #  include "GRID.h"
75    # endif
76    # ifdef ALLOW_EXF
77    #  include "EXF_FIELDS.h"
78  #  ifdef ALLOW_BULKFORMULAE  #  ifdef ALLOW_BULKFORMULAE
79  #   include "exf_constants.h"  #   include "EXF_CONSTANTS.h"
80  #  endif  #  endif
81  # endif  # endif
82    # ifdef ALLOW_PTRACERS
83    #  include "PTRACERS_SIZE.h"
84    #  include "PTRACERS_FIELDS.h"
85    # endif
86    # ifdef ALLOW_GCHEM
87    #  include "GCHEM_FIELDS.h"
88    # endif
89    # ifdef ALLOW_CFC
90    #  include "CFC.h"
91    # endif
92    # ifdef ALLOW_DIC
93    #  include "DIC_VARS.h"
94    #  include "DIC_LOAD.h"
95    #  include "DIC_ATMOS.h"
96    # endif
97  # ifdef ALLOW_OBCS  # ifdef ALLOW_OBCS
98  #  include "OBCS.h"  #  include "OBCS.h"
99    #  ifdef ALLOW_PTRACERS
100    #   include "OBCS_PTRACERS.h"
101    #  endif
102    # endif
103    # ifdef ALLOW_CD_CODE
104    #  include "CD_CODE_VARS.h"
105    # endif
106    # ifdef ALLOW_THSICE
107    #  include "THSICE_VARS.h"
108    # endif
109    # ifdef ALLOW_SEAICE
110    #  include "SEAICE.h"
111    # endif
112    # ifdef ALLOW_SALT_PLUME
113    #  include "SALT_PLUME.h"
114    # endif
115    # ifdef ALLOW_EBM
116    #  include "EBM.h"
117  # endif  # endif
118    # ifdef ALLOW_KPP
119    #  include "KPP.h"
120    # endif
121    # ifdef ALLOW_GMREDI
122    #  include "GMREDI.h"
123    # endif
124    # ifdef ALLOW_RBCS
125    #  include "RBCS.h"
126    # endif
127    #endif /* ALLOW_AUTODIFF_TAMC */
128    
129    #ifdef ALLOW_MNC
130          EXTERNAL DIFFERENT_MULTIPLE
131          LOGICAL  DIFFERENT_MULTIPLE
132  #endif  #endif
133    
134  C     !LOCAL VARIABLES:  
135    C     !INPUT/OUTPUT PARAMETERS:
136  C     == Routine arguments ==  C     == Routine arguments ==
137  C     note: under the multi-threaded model myiter and  C     note: under the multi-threaded model myIter and
138  C           mytime are local variables passed around as routine  C           myTime are local variables passed around as routine
139  C           arguments. Although this is fiddly it saves the need to  C           arguments. Although this is fiddly it saves the need to
140  C           impose additional synchronisation points when they are  C           impose additional synchronisation points when they are
141  C           updated.  C           updated.
142  C     myiter - iteration counter for this thread  C     myTime :: time counter for this thread
143  C     mytime - time counter for this thread  C     myIter :: iteration counter for this thread
144  C     mythid - thread number for this instance of the routine.  C     myThid :: thread number for this instance of the routine.
145        integer iloop        INTEGER iloop
146        integer mythid        _RL     myTime
147        integer myiter        INTEGER myIter
148        _RL     mytime        INTEGER myThid
       INTEGER bi,bj  
149    
150    C     !LOCAL VARIABLES:
151    C     == Local variables ==
152    C     modelEnd  :: true if reaching the end of the run
153          LOGICAL modelEnd
154    #ifdef COMPONENT_MODULE
155          INTEGER myItP1
156    #endif
157  CEOP  CEOP
158    
159    #ifdef ALLOW_DEBUG
160          IF ( debugLevel .GE. debLevB )
161         &    CALL DEBUG_ENTER('FORWARD_STEP',myThid)
162    #endif
163    
164  #ifdef ALLOW_AUTODIFF_TAMC  #ifdef ALLOW_AUTODIFF_TAMC
165  C--     Reset the model iteration counter and the model time.        CALL AUTODIFF_INADMODE_UNSET( myThid )
         myiter = nIter0 + (iloop-1)  
         mytime = startTime + float(iloop-1)*deltaTclock  
166  #endif  #endif
167    
168  #ifdef ALLOW_AUTODIFF_TAMC  #ifdef ALLOW_AUTODIFF_TAMC
169  C       Include call to a dummy routine. Its adjoint will be  C--   Reset the model iteration counter and the model time.
170  C       called at the proper place in the adjoint code.        myIter = nIter0 + (iloop-1)
171  C       The adjoint routine will print out adjoint values        myTime = startTime + float(iloop-1)*deltaTclock
 C       if requested. The location of the call is important,  
 C       it has to be after the adjoint of the exchanges  
 C       (DO_GTERM_BLOCKING_EXCHANGES).  
         CALL DUMMY_IN_STEPPING( myTime, myIter, myThid )  
         CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )  
172  #endif  #endif
173    
 #ifdef EXACT_CONSERV  
       IF (exactConserv) THEN  
 C--   Update etaH(n+1) :  
         DO bj=myByLo(myThid),myByHi(myThid)  
          DO bi=myBxLo(myThid),myBxHi(myThid)  
            CALL CALC_EXACT_ETA( .FALSE., bi,bj, uVel,vVel,  
      I                          myTime, myIter, myThid )  
          ENDDO  
         ENDDO  
         IF (implicDiv2Dflow .NE. 1. _d 0 .OR. useOBCS )  
      &     _EXCH_XY_R8(etaH, myThid )  
       ENDIF  
 #endif /* EXACT_CONSERV */  
   
 #ifdef NONLIN_FRSURF  
 C--   compute the future surface level thickness  
 C      according to etaH(n+1)  
         IF ( nonlinFreeSurf.GT.0) THEN  
           CALL CALC_SURF_DR(etaH, myTime, myIter, myThid )  
         ENDIF  
 #endif /* NONLIN_FRSURF */  
   
 C--     Load forcing/external data fields.  
 #ifdef INCLUDE_EXTERNAL_FORCING_PACKAGE  
 C       NOTE, that although the exf package is part of the  
 C       distribution, it is not currently maintained, i.e.  
 C       exf is disabled by default in genmake.  
174  #ifdef ALLOW_AUTODIFF_TAMC  #ifdef ALLOW_AUTODIFF_TAMC
175  c**************************************  c**************************************
176  #include "checkpoint_lev1_directives.h"  #include "checkpoint_lev1_directives.h"
177    #include "checkpoint_lev1_template.h"
178  c**************************************  c**************************************
179  #endif  #endif
180          CALL EXF_GETFORCING( mytime, myiter, mythid )  
181  #else  C--   Switch on/off diagnostics for snap-shot output:
182          CALL TIMER_START('EXTERNAL_FIELDS_LOAD[THE_MAIN_LOOP]',mythid)  #ifdef ALLOW_DIAGNOSTICS
183          CALL EXTERNAL_FIELDS_LOAD( mytime, myiter, mythid )        IF ( useDiagnostics ) THEN
184          CALL TIMER_STOP ('EXTERNAL_FIELDS_LOAD[THE_MAIN_LOOP]',mythid)          CALL DIAGNOSTICS_SWITCH_ONOFF( myTime, myIter, myThid )
185    C--   State-variables diagnostics
186            CALL TIMER_START('DO_STATEVARS_DIAGS  [FORWARD_STEP]',myThid)
187            CALL DO_STATEVARS_DIAGS( myTime, 0, myIter, myThid )
188            CALL TIMER_STOP ('DO_STATEVARS_DIAGS  [FORWARD_STEP]',myThid)
189          ENDIF
190  #endif  #endif
191    
192  C--     Step forward fields and calculate time tendency terms.  #ifdef ALLOW_PROFILES
193          CALL TIMER_START('THERMODYNAMICS      [THE_MAIN_LOOP]',mythid)  #ifdef ALLOW_DEBUG
194          CALL THERMODYNAMICS( myTime, myIter, myThid )        IF (debugMode) CALL DEBUG_CALL('',myThid)
195          CALL TIMER_STOP ('THERMODYNAMICS      [THE_MAIN_LOOP]',mythid)  #endif
196    c--     Accumulate in-situ time averages of theta, salt, and SSH.
197            CALL TIMER_START('PROFILES_INLOOP    [THE_MAIN_LOOP]', mythid)
198            CALL PROFILES_INLOOP( mytime, mythid )
199            CALL TIMER_STOP ('PROFILES_INLOOP    [THE_MAIN_LOOP]', mythid)
200    #endif
201    
202  #ifdef ALLOW_SHAP_FILT  C--   Call driver to load external forcing fields from file
203         IF (useSHAP_FILT .AND.  #ifdef ALLOW_DEBUG
204       &     staggerTimeStep .AND. shap_filt_TrStagg ) THEN        IF ( debugLevel .GE. debLevB )
205          CALL TIMER_START('SHAP_FILT           [THE_MAIN_LOOP]',myThid)       & CALL DEBUG_CALL('LOAD_FIELDS_DRIVER',myThid)
         CALL SHAP_FILT_APPLY_TS( gT, gS, myTime, myIter, myThid )  
         CALL TIMER_STOP ('SHAP_FILT           [THE_MAIN_LOOP]',myThid)  
        ENDIF  
206  #endif  #endif
207  #ifdef ALLOW_ZONAL_FILT  #ifdef ALLOW_AUTODIFF_TAMC
208         IF (useZONAL_FILT .AND.  cph Important STORE that avoids hidden recomp. of load_fields_driver
209       &     staggerTimeStep .AND. zonal_filt_TrStagg ) THEN  CADJ STORE theta      = comlev1, key = ikey_dynamics,
210          CALL TIMER_START('ZONAL_FILT_APPLY    [THE_MAIN_LOOP]',myThid)  CADJ &     kind = isbyte
211          CALL ZONAL_FILT_APPLY_TS( gT, gS, myThid )  CADJ STORE uvel, vvel = comlev1, key = ikey_dynamics,
212          CALL TIMER_STOP ('ZONAL_FILT_APPLY    [THE_MAIN_LOOP]',myThid)  CADJ &     kind = isbyte
213    #endif
214          CALL TIMER_START('LOAD_FIELDS_DRIVER  [FORWARD_STEP]',myThid)
215          CALL LOAD_FIELDS_DRIVER( myTime, myIter, myThid )
216          CALL TIMER_STOP ('LOAD_FIELDS_DRIVER  [FORWARD_STEP]',myThid)
217    
218    C--   Call Bulk-Formulae forcing package
219    #ifdef ALLOW_BULK_FORCE
220          IF ( useBulkForce ) THEN
221    #ifdef ALLOW_DEBUG
222            IF ( debugLevel .GE. debLevB )
223         &   CALL DEBUG_CALL('BULKF_FORCING',myThid)
224    #endif
225            CALL TIMER_START('BULKF_FORCING       [FORWARD_STEP]',myThid)
226    C-    calculate qnet and empmr (and wind stress)
227            CALL BULKF_FORCING( myTime, myIter, myThid )
228            CALL TIMER_STOP ('BULKF_FORCING       [FORWARD_STEP]',myThid)
229          ENDIF
230    #endif /* ALLOW_BULK_FORCE */
231    
232    C--   Call external chepaml forcing package
233    #ifdef ALLOW_CHEAPAML
234          IF ( useCheapAML  ) THEN
235    #ifdef ALLOW_DEBUG
236           IF ( debugLevel .GE. debLevB )
237         &    CALL DEBUG_CALL('CHEAPAML_FIELDS_LOAD',myThid)
238    #endif
239           CALL TIMER_START('CHEAPAML      [FORWARD_STEP]',mythid)
240    C-    calculate qnet (and wind stress)
241           CALL CHEAPAML( myTime, myIter,myThid )
242           CALL TIMER_STOP ('CHEAPAML      [FORWARD_STEP]',mythid)
243        ENDIF        ENDIF
244  #endif    #endif /*ALLOW_CHEAPAML */
245    
246    
247    #ifdef ALLOW_AUTODIFF
248    c--   Add control vector for forcing and parameter fields
249          IF ( myIter .EQ. nIter0 )
250         &     CALL CTRL_MAP_FORCING (myThid)
251    #endif
252    
253    #if (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_AUTODIFF_MONITOR))
254          CALL DUMMY_IN_STEPPING( myTime, myIter, myThid )
255    #endif
256    
257    #ifdef COMPONENT_MODULE
258          IF ( useCoupler .AND. cpl_earlyExpImpCall ) THEN
259    C      Post coupling data that I export.
260    C      Read in coupling data that I import.
261             CALL TIMER_START('CPL_EXPORT-IMPORT  [FORWARD_STEP]',myThid)
262             CALL CPL_EXPORT_MY_DATA(       myIter, myTime, myThid )
263             CALL CPL_IMPORT_EXTERNAL_DATA( myIter, myTime, myThid )
264             CALL TIMER_STOP ('CPL_EXPORT-IMPORT  [FORWARD_STEP]',myThid)
265          ENDIF
266    #endif /* COMPONENT_MODULE */
267    
268    #ifdef ALLOW_EBM
269          IF ( useEBM ) THEN
270    # ifdef ALLOW_DEBUG
271             IF ( debugLevel .GE. debLevB )
272         &    CALL DEBUG_CALL('EBM',myThid)
273    # endif
274             CALL TIMER_START('EBM                [FORWARD_STEP]',myThid)
275             CALL EBM_DRIVER ( myTime, myIter, myThid )
276             CALL TIMER_STOP ('EBM                [FORWARD_STEP]',myThid)
277          ENDIF
278    #endif /* ALLOW_EBM */
279    
280  C--     Step forward fields and calculate time tendency terms.  C--     Step forward fields and calculate time tendency terms.
         IF ( momStepping ) THEN  
         CALL TIMER_START('DYNAMICS            [THE_MAIN_LOOP]',mythid)  
         CALL DYNAMICS( myTime, myIter, myThid )  
         CALL TIMER_STOP ('DYNAMICS            [THE_MAIN_LOOP]',mythid)  
         ENDIF  
281    
282  #ifdef ALLOW_NONHYDROSTATIC  #ifdef ALLOW_DEBUG
283  C--   Step forward W field in N-H algorithm        IF ( debugLevel .GE. debLevB )
284          IF ( momStepping .AND. nonHydrostatic ) THEN       & CALL DEBUG_CALL('DO_ATMOSPHERIC_PHYS',myThid)
285            CALL TIMER_START('CALC_GW          [THE_MAIN_LOOP]',myThid)  #endif
286            CALL CALC_GW(myThid)        CALL TIMER_START('DO_ATMOSPHERIC_PHYS [FORWARD_STEP]',myThid)
287            CALL TIMER_STOP ('CALC_GW          [THE_MAIN_LOOP]',myThid)        CALL DO_ATMOSPHERIC_PHYS( myTime, myIter, myThid )
288          CALL TIMER_STOP ('DO_ATMOSPHERIC_PHYS [FORWARD_STEP]',myThid)
289    
290    #ifdef ALLOW_AUTODIFF_TAMC
291    CADJ STORE surfaceforcingtice    = comlev1, key = ikey_dynamics,
292    CADJ &     kind = isbyte
293    # ifdef ALLOW_KPP
294    CADJ STORE uvel               = comlev1, key = ikey_dynamics,
295    CADJ &     kind = isbyte
296    CADJ STORE vvel               = comlev1, key = ikey_dynamics,
297    CADJ &     kind = isbyte
298    # endif
299    # ifdef EXACT_CONSERV
300    cphCADJ STORE empmr              = comlev1, key = ikey_dynamics
301    cphCADJ STORE pmepr              = comlev1, key = ikey_dynamics
302    # endif
303    # ifdef ALLOW_PTRACERS
304    CADJ STORE ptracer               = comlev1, key = ikey_dynamics,
305    CADJ &     kind = isbyte
306    # endif
307    # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
308    cph-test
309    CADJ STORE hFacC                 = comlev1, key = ikey_dynamics,
310    CADJ &     kind = isbyte
311    #  ifndef DISABLE_RSTAR_CODE
312    CADJ STORE rstarexpc             = comlev1, key = ikey_dynamics,
313    CADJ &     kind = isbyte
314    #  endif
315    # endif
316    #endif /* ALLOW_AUTODIFF_TAMC */
317    
318    #ifndef ALLOW_AUTODIFF_TAMC
319          IF ( .NOT. useOffLine ) THEN
320    #endif
321    #ifdef ALLOW_DEBUG
322           IF ( debugLevel .GE. debLevB )
323         &    CALL DEBUG_CALL('DO_OCEANIC_PHYS',myThid)
324    #endif
325           CALL TIMER_START('DO_OCEANIC_PHYS     [FORWARD_STEP]',myThid)
326           CALL DO_OCEANIC_PHYS( myTime, myIter, myThid )
327           CALL TIMER_STOP ('DO_OCEANIC_PHYS     [FORWARD_STEP]',myThid)
328    #ifdef ALLOW_AUTODIFF_TAMC
329    CADJ STORE EmPmR    = comlev1, key = ikey_dynamics,
330    CADJ &     kind = isbyte
331    # ifdef EXACT_CONSERV
332    CADJ STORE pmepr    = comlev1, key = ikey_dynamics,
333    CADJ &     kind = isbyte
334    # endif
335    #else
336          ENDIF
337    #endif
338    
339    #ifdef ALLOW_AUTODIFF_TAMC
340    # ifdef NONLIN_FRSURF
341    cph-test
342    CADJ STORE hFac_surfC         = comlev1, key = ikey_dynamics,
343    CADJ &     kind = isbyte
344    CADJ STORE hfac_surfs         = comlev1, key = ikey_dynamics,
345    CADJ &     kind = isbyte
346    CADJ STORE hfac_surfw         = comlev1, key = ikey_dynamics,
347    CADJ &     kind = isbyte
348    # endif
349    # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
350    CADJ STORE hFacC, hFacS, hFacW
351    CADJ &     = comlev1, key = ikey_dynamics,
352    CADJ &     kind = isbyte
353    CADJ STORE recip_hFacC, recip_hFacS, recip_hFacW
354    CADJ &     = comlev1, key = ikey_dynamics,
355    CADJ &     kind = isbyte
356    c
357    CADJ STORE surfaceforcingu = comlev1, key = ikey_dynamics,
358    CADJ &     kind = isbyte
359    CADJ STORE surfaceforcingv = comlev1, key = ikey_dynamics,
360    CADJ &     kind = isbyte
361    # endif
362    #endif /* ALLOW_AUTODIFF_TAMC */
363    
364    #ifdef ALLOW_GCHEM
365    #ifdef ALLOW_AUTODIFF_TAMC
366    CADJ STORE ptracer  = comlev1, key = ikey_dynamics,
367    CADJ &     kind = isbyte
368    CADJ STORE theta  = comlev1, key = ikey_dynamics,
369    CADJ &     kind = isbyte
370    CADJ STORE salt  = comlev1, key = ikey_dynamics,
371    CADJ &     kind = isbyte
372    #endif
373          IF ( useGCHEM ) THEN
374    #ifdef ALLOW_DEBUG
375            IF ( debugLevel .GE. debLevB )
376         &       CALL DEBUG_CALL('GCHEM_CALC_TENDENCY',myThid)
377    #endif
378            CALL TIMER_START('GCHEM_CALC_TENDENCY [FORWARD_STEP]',myThid)
379            CALL GCHEM_CALC_TENDENCY( myTime, myIter, myThid )
380            CALL TIMER_STOP ('GCHEM_CALC_TENDENCY [FORWARD_STEP]',myThid)
381          ENDIF
382    #endif /* ALLOW_GCHEM */
383    
384    #ifdef ALLOW_AUTODIFF_TAMC
385    cph needed to be moved here from do_oceanic_physics
386    cph to be visible down the road
387    c
388    CADJ STORE rhoInSitu          = comlev1, key = ikey_dynamics,
389    CADJ &     kind = isbyte
390    CADJ STORE surfaceForcingS    = comlev1, key = ikey_dynamics,
391    CADJ &     kind = isbyte
392    CADJ STORE surfaceForcingT    = comlev1, key = ikey_dynamics,
393    CADJ &     kind = isbyte
394    CADJ STORE surfaceForcingTice = comlev1, key = ikey_dynamics,
395    CADJ &     kind = isbyte
396    CADJ STORE IVDConvCount       = comlev1, key = ikey_dynamics,
397    CADJ &     kind = isbyte
398    # ifdef ALLOW_PTRACERS
399    CADJ STORE surfaceForcingPTr  = comlev1, key = ikey_dynamics,
400    CADJ &     kind = isbyte
401    # endif
402    c
403    # ifdef ALLOW_GMREDI
404    CADJ STORE Kwx                = comlev1, key = ikey_dynamics,
405    CADJ &     kind = isbyte
406    CADJ STORE Kwy                = comlev1, key = ikey_dynamics,
407    CADJ &     kind = isbyte
408    CADJ STORE Kwz                = comlev1, key = ikey_dynamics,
409    CADJ &     kind = isbyte
410    #  ifdef GM_BOLUS_ADVEC
411    CADJ STORE GM_PsiX            = comlev1, key = ikey_dynamics,
412    CADJ &     kind = isbyte
413    CADJ STORE GM_PsiY            = comlev1, key = ikey_dynamics,
414    CADJ &     kind = isbyte
415    #  endif
416    # endif
417    c
418    # ifdef ALLOW_KPP
419    CADJ STORE KPPghat            = comlev1, key = ikey_dynamics,
420    CADJ &     kind = isbyte
421    CADJ STORE KPPfrac            = comlev1, key = ikey_dynamics,
422    CADJ &     kind = isbyte
423    CADJ STORE KPPdiffKzS         = comlev1, key = ikey_dynamics,
424    CADJ &     kind = isbyte
425    CADJ STORE KPPdiffKzT         = comlev1, key = ikey_dynamics,
426    CADJ &     kind = isbyte
427    # endif
428    c
429    # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
430    CADJ STORE theta,salt,wvel          = comlev1, key = ikey_dynamics,
431    CADJ &     kind = isbyte
432    CADJ STORE etaH               = comlev1, key = ikey_dynamics,
433    CADJ &     kind = isbyte
434    #  ifdef ALLOW_CD_CODE
435    CADJ STORE etanm1             = comlev1, key = ikey_dynamics,
436    CADJ &     kind = isbyte
437    #  endif
438    #  ifndef DISABLE_RSTAR_CODE
439    cph-test
440    CADJ STORE rstarexpc = comlev1, key = ikey_dynamics,
441    CADJ &     kind = isbyte
442    #  endif
443    # endif
444    #endif /* ALLOW_AUTODIFF_TAMC */
445    
446          IF ( .NOT.staggerTimeStep ) THEN
447    #ifdef ALLOW_DEBUG
448            IF ( debugLevel .GE. debLevB )
449         &    CALL DEBUG_CALL('THERMODYNAMICS',myThid)
450    #endif
451    CADJ STORE salt               = comlev1, key = ikey_dynamics,
452    CADJ &     kind = isbyte
453            CALL TIMER_START('THERMODYNAMICS      [FORWARD_STEP]',myThid)
454            CALL THERMODYNAMICS( myTime, myIter, myThid )
455            CALL TIMER_STOP ('THERMODYNAMICS      [FORWARD_STEP]',myThid)
456    C--    if not staggerTimeStep: end
457          ENDIF
458    c #ifdef ALLOW_NONHYDROSTATIC
459          IF ( implicitIntGravWave ) THEN
460            CALL TIMER_START('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
461            CALL DO_STAGGER_FIELDS_EXCHANGES( myTime, myIter, myThid )
462            CALL TIMER_STOP ('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
463          ENDIF
464    c #endif
465    
466    #ifdef COMPONENT_MODULE
467          IF ( useCoupler .AND. .NOT.cpl_earlyExpImpCall ) THEN
468    C      Post coupling data that I export.
469    C      Read in coupling data that I import.
470             myItP1 = myIter + 1
471             CALL TIMER_START('CPL_EXPORT-IMPORT  [FORWARD_STEP]',myThid)
472             CALL CPL_EXPORT_MY_DATA(       myItP1, myTime, myThid )
473             CALL CPL_IMPORT_EXTERNAL_DATA( myItP1, myTime, myThid )
474             CALL TIMER_STOP ('CPL_EXPORT-IMPORT  [FORWARD_STEP]',myThid)
475    # ifdef ALLOW_OCN_COMPON_INTERF
476            IF ( useRealFreshWaterFlux ) THEN
477             CALL OCN_APPLY_IMPORT( .FALSE., myTime, myIter, myThid )
478          ENDIF          ENDIF
479    # endif /* ALLOW_OCN_COMPON_INTERF */
480          ENDIF
481    #endif /* COMPONENT_MODULE */
482    
483    #ifdef ALLOW_AUTODIFF_TAMC
484    # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
485    CADJ STORE hFacC          = comlev1, key = ikey_dynamics,
486    CADJ &     kind = isbyte
487    CADJ STORE hFacS          = comlev1, key = ikey_dynamics,
488    CADJ &     kind = isbyte
489    CADJ STORE hFacW          = comlev1, key = ikey_dynamics,
490    CADJ &     kind = isbyte
491    CADJ STORE recip_hFacC    = comlev1, key = ikey_dynamics,
492    CADJ &     kind = isbyte
493    CADJ STORE recip_hFacS    = comlev1, key = ikey_dynamics,
494    CADJ &     kind = isbyte
495    CADJ STORE recip_hFacW    = comlev1, key = ikey_dynamics,
496    CADJ &     kind = isbyte
497    CADJ STORE etaN           = comlev1, key = ikey_dynamics,
498    CADJ &     kind = isbyte
499    c
500    #  ifndef DISABLE_RSTAR_CODE
501    CADJ STORE rstarFacC    = comlev1, key = ikey_dynamics,
502    CADJ &     kind = isbyte
503    CADJ STORE rstarFacS    = comlev1, key = ikey_dynamics,
504    CADJ &     kind = isbyte
505    CADJ STORE rstarFacW    = comlev1, key = ikey_dynamics,
506    CADJ &     kind = isbyte
507    c
508    CADJ STORE h0facc,h0facs,h0facw  
509    CADJ &     = comlev1, key = ikey_dynamics,
510    CADJ &     kind = isbyte
511    CADJ STORE rstardhcdt,rstardhsdt,rstardhwdt
512    CADJ &     = comlev1, key = ikey_dynamics,
513    CADJ &     kind = isbyte
514    CADJ STORE rstarexpc,rstarexps,rstarexpw
515    CADJ &     = comlev1, key = ikey_dynamics,
516    CADJ &     kind = isbyte
517    #  endif
518    # endif
519  #endif  #endif
520    C--   Step forward fields and calculate time tendency terms.
521    #ifndef ALLOW_AUTODIFF_TAMC
522          IF ( momStepping ) THEN
523    #endif
524    #ifdef ALLOW_DEBUG
525            IF ( debugLevel .GE. debLevB )
526         &    CALL DEBUG_CALL('DYNAMICS',myThid)
527    #endif
528            CALL TIMER_START('DYNAMICS            [FORWARD_STEP]',myThid)
529            CALL DYNAMICS( myTime, myIter, myThid )
530            CALL TIMER_STOP ('DYNAMICS            [FORWARD_STEP]',myThid)
531    #ifndef ALLOW_AUTODIFF_TAMC
532          ENDIF
533    #endif
534    
535    #ifdef ALLOW_AUTODIFF_TAMC
536    # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
537    CADJ STORE gU, gV  = comlev1, key = ikey_dynamics,
538    CADJ &     kind = isbyte
539    # endif
540    #endif
541    
542    C--   Update time-counter
543          myIter = nIter0 + iLoop
544          myTime = startTime + deltaTClock * float(iLoop)
545    
546    #ifdef ALLOW_MNC
547    C     Update the default next iter for MNC
548          IF ( useMNC ) THEN
549             CALL MNC_CW_CITER_SETG( 1, 1, -1, myIter , myThid )
550    
551    C        TODO: Logic should be added here so that users can specify, on
552    C        a per-citer-group basis, when it is time to update the
553    C        "current" (and not just the "next") iteration
554    
555    C        TODO: the following is just a temporary band-aid (mostly, for
556    C        Baylor) until someone writes a routine that better handles time
557    C        boundaries such as weeks, months, years, etc.
558             IF ( mnc_filefreq .GT. 0 ) THEN
559               IF (DIFFERENT_MULTIPLE(mnc_filefreq,myTime,deltaTClock))
560         &          THEN
561                 CALL MNC_CW_CITER_SETG( 1, 1, myIter, -1 , myThid )
562               ENDIF
563             ENDIF
564          ENDIF
565    #endif /* ALLOW_MNC */
566    
567    C--   Update geometric factors:
568  #ifdef NONLIN_FRSURF  #ifdef NONLIN_FRSURF
569  C--   update hfacC,W,S and recip_hFac according to etaH(n+1) :  C-    update hfacC,W,S and recip_hFac according to etaH(n+1) :
       IF ( momStepping ) THEN  
570        IF ( nonlinFreeSurf.GT.0) THEN        IF ( nonlinFreeSurf.GT.0) THEN
571           IF ( select_rStar.GT.0 ) THEN
572    # ifndef DISABLE_RSTAR_CODE
573    # ifdef ALLOW_AUTODIFF_TAMC
574    CADJ STORE hFacC    = comlev1, key = ikey_dynamics,
575    CADJ &     kind = isbyte
576    CADJ STORE hFacS    = comlev1, key = ikey_dynamics,
577    CADJ &     kind = isbyte
578    CADJ STORE hFacW    = comlev1, key = ikey_dynamics,
579    CADJ &     kind = isbyte
580    CADJ STORE recip_hFacC    = comlev1, key = ikey_dynamics,
581    CADJ &     kind = isbyte
582    CADJ STORE recip_hFacS    = comlev1, key = ikey_dynamics,
583    CADJ &     kind = isbyte
584    CADJ STORE recip_hFacW    = comlev1, key = ikey_dynamics,
585    CADJ &     kind = isbyte
586    c
587    CADJ STORE rstarFacC    = comlev1, key = ikey_dynamics,
588    CADJ &     kind = isbyte
589    CADJ STORE rstarFacS    = comlev1, key = ikey_dynamics,
590    CADJ &     kind = isbyte
591    CADJ STORE rstarFacW    = comlev1, key = ikey_dynamics,
592    CADJ &     kind = isbyte
593    c
594    CADJ STORE h0facc,h0facs,h0facw  = comlev1, key = ikey_dynamics,
595    CADJ &     kind = isbyte
596    # endif
597            CALL TIMER_START('UPDATE_R_STAR       [FORWARD_STEP]',myThid)
598            CALL UPDATE_R_STAR( myTime, myIter, myThid )
599            CALL TIMER_STOP ('UPDATE_R_STAR       [FORWARD_STEP]',myThid)
600    # ifdef ALLOW_AUTODIFF_TAMC
601    CADJ STORE hFacC    = comlev1, key = ikey_dynamics,
602    CADJ &     kind = isbyte
603    CADJ STORE hFacS    = comlev1, key = ikey_dynamics,
604    CADJ &     kind = isbyte
605    CADJ STORE hFacW    = comlev1, key = ikey_dynamics,
606    CADJ &     kind = isbyte
607    CADJ STORE recip_hFacC    = comlev1, key = ikey_dynamics,
608    CADJ &     kind = isbyte
609    CADJ STORE recip_hFacS    = comlev1, key = ikey_dynamics,
610    CADJ &     kind = isbyte
611    CADJ STORE recip_hFacW    = comlev1, key = ikey_dynamics,
612    CADJ &     kind = isbyte
613    # endif
614    # endif /* DISABLE_RSTAR_CODE */
615           ELSE
616    #ifdef ALLOW_AUTODIFF_TAMC
617    CADJ STORE hFac_surfC, hFac_surfS, hFac_surfW
618    CADJ &     = comlev1, key = ikey_dynamics,
619    CADJ &     kind = isbyte
620    #endif
621            CALL TIMER_START('UPDATE_SURF_DR      [FORWARD_STEP]',myThid)
622          CALL UPDATE_SURF_DR( myTime, myIter, myThid )          CALL UPDATE_SURF_DR( myTime, myIter, myThid )
623            CALL TIMER_STOP ('UPDATE_SURF_DR      [FORWARD_STEP]',myThid)
624           ENDIF
625        ENDIF        ENDIF
626    # ifdef ALLOW_AUTODIFF_TAMC
627    CADJ STORE hFacC    = comlev1, key = ikey_dynamics,
628    CADJ &     kind = isbyte
629    CADJ STORE hFacS    = comlev1, key = ikey_dynamics,
630    CADJ &     kind = isbyte
631    CADJ STORE hFacW    = comlev1, key = ikey_dynamics,
632    CADJ &     kind = isbyte
633    CADJ STORE recip_hFacC    = comlev1, key = ikey_dynamics,
634    CADJ &     kind = isbyte
635    CADJ STORE recip_hFacS    = comlev1, key = ikey_dynamics,
636    CADJ &     kind = isbyte
637    CADJ STORE recip_hFacW    = comlev1, key = ikey_dynamics,
638    CADJ &     kind = isbyte
639    # endif
640  C-    update also CG2D matrix (and preconditioner)  C-    update also CG2D matrix (and preconditioner)
641        IF ( nonlinFreeSurf.GT.2) THEN        IF ( momStepping .AND. nonlinFreeSurf.GT.2 ) THEN
642            CALL TIMER_START('UPDATE_CG2D         [FORWARD_STEP]',myThid)
643          CALL UPDATE_CG2D( myTime, myIter, myThid )          CALL UPDATE_CG2D( myTime, myIter, myThid )
644            CALL TIMER_STOP ('UPDATE_CG2D         [FORWARD_STEP]',myThid)
645        ENDIF        ENDIF
646        ENDIF  #endif /* NONLIN_FRSURF */
 #endif  
647    
648  C--   Apply Filters to u*,v* before SOLVE_FOR_PRESSURE  C--   Apply Filters to u*,v* before SOLVE_FOR_PRESSURE
649  #ifdef ALLOW_SHAP_FILT  #ifdef ALLOW_SHAP_FILT
650        IF (useSHAP_FILT .AND. shap_filt_uvStar) THEN        IF (useSHAP_FILT .AND. shap_filt_uvStar) THEN
651          CALL TIMER_START('SHAP_FILT           [THE_MAIN_LOOP]',myThid)          CALL TIMER_START('SHAP_FILT_UV        [FORWARD_STEP]',myThid)
         CALL SHAP_FILT_APPLY_UV( gUnm1,gVnm1, myTime,myIter,myThid )  
652          IF (implicDiv2Dflow.LT.1.) THEN          IF (implicDiv2Dflow.LT.1.) THEN
653  C--   Explicit+Implicit part of the Barotropic Flow Divergence  C--   Explicit+Implicit part of the Barotropic Flow Divergence
654  C      => Filtering of uVel,vVel is necessary  C      => Filtering of uVel,vVel is necessary
655            CALL SHAP_FILT_APPLY_UV( uVel,vVel, myTime,myIter,myThid )            CALL SHAP_FILT_APPLY_UV( uVel,vVel,
656         &                             myTime, myIter, myThid )
657          ENDIF          ENDIF
658          CALL TIMER_STOP ('SHAP_FILT           [THE_MAIN_LOOP]',myThid)          CALL SHAP_FILT_APPLY_UV( gU,gV,myTime,myIter,myThid)
659            CALL TIMER_STOP ('SHAP_FILT_UV        [FORWARD_STEP]',myThid)
660        ENDIF        ENDIF
661  #endif  #endif
662  #ifdef ALLOW_ZONAL_FILT  #ifdef ALLOW_ZONAL_FILT
663        IF (useZONAL_FILT .AND. zonal_filt_uvStar) THEN        IF (useZONAL_FILT .AND. zonal_filt_uvStar) THEN
664          CALL TIMER_START('ZONAL_FILT_APPLY    [THE_MAIN_LOOP]',myThid)          CALL TIMER_START('ZONAL_FILT_UV       [FORWARD_STEP]',myThid)
         CALL ZONAL_FILT_APPLY_UV( gUnm1, gVnm1, myThid )  
665          IF (implicDiv2Dflow.LT.1.) THEN          IF (implicDiv2Dflow.LT.1.) THEN
666  C--   Explicit+Implicit part of the Barotropic Flow Divergence  C--   Explicit+Implicit part of the Barotropic Flow Divergence
667  C      => Filtering of uVel,vVel is necessary  C      => Filtering of uVel,vVel is necessary
668            CALL ZONAL_FILT_APPLY_UV( uVel, vVel, myThid )            CALL ZONAL_FILT_APPLY_UV( uVel, vVel, myThid )
669          ENDIF          ENDIF
670          CALL TIMER_STOP ('ZONAL_FILT_APPLY    [THE_MAIN_LOOP]',myThid)          CALL ZONAL_FILT_APPLY_UV( gU, gV, myThid )
671            CALL TIMER_STOP ('ZONAL_FILT_UV       [FORWARD_STEP]',myThid)
672        ENDIF        ENDIF
673  #endif    #endif
674    
675  C--   Solve elliptic equation(s).  C--   Solve elliptic equation(s).
676  C     Two-dimensional only for conventional hydrostatic or  C     Two-dimensional only for conventional hydrostatic or
677  C     three-dimensional for non-hydrostatic and/or IGW scheme.  C     three-dimensional for non-hydrostatic and/or IGW scheme.
678        IF ( momStepping ) THEN        IF ( momStepping ) THEN
679        CALL TIMER_START('SOLVE_FOR_PRESSURE  [THE_MAIN_LOOP]',myThid)  #ifdef ALLOW_AUTODIFF_TAMC
680        CALL SOLVE_FOR_PRESSURE(myTime, myIter, myThid)  # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
681        CALL TIMER_STOP ('SOLVE_FOR_PRESSURE  [THE_MAIN_LOOP]',myThid)  CADJ STORE uvel, vvel
682    CADJ &     = comlev1, key = ikey_dynamics,
683    CADJ &     kind = isbyte
684    CADJ STORE empmr,hfacs,hfacw
685    CADJ &     = comlev1, key = ikey_dynamics,
686    CADJ &     kind = isbyte
687    # endif
688    #endif
689            CALL TIMER_START('SOLVE_FOR_PRESSURE  [FORWARD_STEP]',myThid)
690            CALL SOLVE_FOR_PRESSURE(myTime, myIter, myThid)
691            CALL TIMER_STOP ('SOLVE_FOR_PRESSURE  [FORWARD_STEP]',myThid)
692        ENDIF        ENDIF
693    
694  C--   Correct divergence in flow field and cycle time-stepping  C--   Correct divergence in flow field and cycle time-stepping momentum
695  C     arrays (for all fields) ; update time-counter  #ifndef ALLOW_AUTODIFF_TAMC
696        myIter = nIter0 + iLoop        IF ( momStepping ) THEN
697        myTime = startTime + deltaTClock * float(iLoop)  #endif
698        CALL TIMER_START('THE_CORRECTION_STEP [THE_MAIN_LOOP]',myThid)  #ifdef ALLOW_AUTODIFF_TAMC
699        CALL THE_CORRECTION_STEP(myTime, myIter, myThid)  # if (defined NONLIN_FRSURF) || (defined ALLOW_DEPTH_CONTROL)
700        CALL TIMER_STOP ('THE_CORRECTION_STEP [THE_MAIN_LOOP]',myThid)  #  ifndef DISABLE_RSTAR_CODE
701    cph-test
702    cph not clear, why this one
703    CADJ STORE h0facc = comlev1, key = ikey_dynamics,
704    CADJ &     kind = isbyte
705    #  endif
706    # endif
707    # ifdef ALLOW_DEPTH_CONTROL
708    CADJ STORE etan, uvel,vvel
709    CADJ &     = comlev1, key = ikey_dynamics
710    # endif
711    #endif
712            CALL TIMER_START('MOM_CORRECTION_STEP [FORWARD_STEP]',myThid)
713            CALL MOMENTUM_CORRECTION_STEP(myTime, myIter, myThid)
714            CALL TIMER_STOP ('MOM_CORRECTION_STEP [FORWARD_STEP]',myThid)
715    #ifndef ALLOW_AUTODIFF_TAMC
716          ENDIF
717    #endif
718    
719    #ifdef EXACT_CONSERV
720          IF (exactConserv) THEN
721    C--   Update etaH(n+1) :
722            CALL TIMER_START('UPDATE_ETAH         [FORWARD_STEP]',myThid)
723            CALL UPDATE_ETAH( myTime, myIter, myThid )
724            CALL TIMER_STOP ('UPDATE_ETAH         [FORWARD_STEP]',myThid)
725          ENDIF
726    #endif /* EXACT_CONSERV */
727    
728    #ifdef NONLIN_FRSURF
729          IF ( select_rStar.NE.0 ) THEN
730    # ifndef DISABLE_RSTAR_CODE
731    #  ifdef ALLOW_AUTODIFF_TAMC
732    cph-test
733    CADJ STORE rstarfacc,rstarfacs,rstarfacw = comlev1, key = ikey_dynamics,
734    CADJ &     kind = isbyte
735    #  endif
736    C--   r* : compute the future level thickness according to etaH(n+1)
737            CALL TIMER_START('CALC_R_STAR         [FORWARD_STEP]',myThid)
738            CALL CALC_R_STAR(etaH, myTime, myIter, myThid )
739            CALL TIMER_STOP ('CALC_R_STAR         [FORWARD_STEP]',myThid)
740    # endif /* DISABLE_RSTAR_CODE */
741          ELSEIF ( nonlinFreeSurf.GT.0) THEN
742    C--   compute the future surface level thickness according to etaH(n+1)
743    # ifdef ALLOW_AUTODIFF_TAMC
744    CADJ STORE etaH          = comlev1, key = ikey_dynamics,
745    CADJ &     kind = isbyte
746    # endif
747            CALL TIMER_START('CALC_SURF_DR      [FORWARD_STEP]',myThid)
748            CALL CALC_SURF_DR(etaH, myTime, myIter, myThid )
749            CALL TIMER_STOP ('CALC_SURF_DR      [FORWARD_STEP]',myThid)
750          ENDIF
751    # ifdef ALLOW_AUTODIFF_TAMC
752    CADJ STORE hFac_surfC       = comlev1, key = ikey_dynamics,
753    CADJ &     kind = isbyte
754    CADJ STORE salt,theta,vvel  = comlev1, key = ikey_dynamics,
755    CADJ &     kind = isbyte
756    # endif
757    #endif /* NONLIN_FRSURF */
758    
759    C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
760          IF ( staggerTimeStep ) THEN
761    C--   do exchanges of U,V (needed for multiDim) when using stagger time-step :
762    #ifdef ALLOW_DEBUG
763            IF ( debugLevel .GE. debLevB )
764         &   CALL DEBUG_CALL('DO_STAGGER_FIELDS_EXCH.',myThid)
765    #endif
766            CALL TIMER_START('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
767            CALL DO_STAGGER_FIELDS_EXCHANGES( myTime, myIter, myThid )
768            CALL TIMER_STOP ('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
769    
770    #ifdef ALLOW_DIAGNOSTICS
771    C--   State-variables diagnostics
772            IF ( useDiagnostics ) THEN
773              CALL TIMER_START('DO_STATEVARS_DIAGS  [FORWARD_STEP]',myThid)
774              CALL DO_STATEVARS_DIAGS( myTime, 1, myIter, myThid )
775              CALL TIMER_STOP ('DO_STATEVARS_DIAGS  [FORWARD_STEP]',myThid)
776            ENDIF
777    #endif
778    
779    #ifdef ALLOW_DEBUG
780            IF ( debugLevel .GE. debLevB )
781         &   CALL DEBUG_CALL('THERMODYNAMICS',myThid)
782    #endif
783            CALL TIMER_START('THERMODYNAMICS      [FORWARD_STEP]',myThid)
784            CALL THERMODYNAMICS( myTime, myIter, myThid )
785            CALL TIMER_STOP ('THERMODYNAMICS      [FORWARD_STEP]',myThid)
786    
787    C--    if staggerTimeStep: end
788          ENDIF
789    C---+--------+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
790    
791    #ifdef ALLOW_AUTODIFF_TAMC
792    cph This is needed because convective_adjustment calls
793    cph find_rho which may use pressure()
794    CADJ STORE totphihyd  = comlev1, key = ikey_dynamics,
795    CADJ &     kind = isbyte
796    #endif
797    C--   Cycle time-stepping Tracers arrays (T,S,+pTracers)
798          CALL TIMER_START('TRC_CORRECTION_STEP [FORWARD_STEP]',myThid)
799          CALL TRACERS_CORRECTION_STEP(myTime, myIter, myThid)
800          CALL TIMER_STOP ('TRC_CORRECTION_STEP [FORWARD_STEP]',myThid)
801    
802    #ifdef ALLOW_GCHEM
803    C     Add separate timestepping of chemical/biological/forcing
804    C     of ptracers here in GCHEM_FORCING_SEP
805    #ifdef ALLOW_AUTODIFF_TAMC
806    CADJ STORE ptracer  = comlev1, key = ikey_dynamics,
807    CADJ &     kind = isbyte
808    CADJ STORE theta  = comlev1, key = ikey_dynamics,
809    CADJ &     kind = isbyte
810    CADJ STORE salt  = comlev1, key = ikey_dynamics,
811    CADJ &     kind = isbyte
812    #endif
813          IF ( useGCHEM ) THEN
814    #ifdef ALLOW_DEBUG
815             IF ( debugLevel .GE. debLevB )
816         &    CALL DEBUG_CALL('GCHEM_FORCING_SEP',myThid)
817    #endif /* ALLOW_DEBUG */
818             CALL TIMER_START('GCHEM_FORCING_SEP  [FORWARD_STEP]',myThid)
819             CALL GCHEM_FORCING_SEP( myTime,myIter,myThid )
820             CALL TIMER_STOP ('GCHEM_FORCING_SEP  [FORWARD_STEP]',myThid)
821          ENDIF
822    #endif /* ALLOW_GCHEM */
823    
824  C--   Do "blocking" sends and receives for tendency "overlap" terms  C--   Do "blocking" sends and receives for tendency "overlap" terms
825  c     CALL TIMER_START('BLOCKING_EXCHANGES  [THE_MAIN_LOOP]',myThid)  c     CALL TIMER_START('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
826  c     CALL DO_GTERM_BLOCKING_EXCHANGES( myThid )  c     CALL DO_GTERM_BLOCKING_EXCHANGES( myThid )
827  c     CALL TIMER_STOP ('BLOCKING_EXCHANGES  [THE_MAIN_LOOP]',myThid)  c     CALL TIMER_STOP ('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
828    
829  C--   Do "blocking" sends and receives for field "overlap" terms  C--   Do "blocking" sends and receives for field "overlap" terms
830        CALL TIMER_START('BLOCKING_EXCHANGES  [THE_MAIN_LOOP]',myThid)        CALL TIMER_START('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
831        CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )        CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )
832        CALL TIMER_STOP ('BLOCKING_EXCHANGES  [THE_MAIN_LOOP]',myThid)        CALL TIMER_STOP ('BLOCKING_EXCHANGES  [FORWARD_STEP]',myThid)
833    
834    #ifdef ALLOW_DIAGNOSTICS
835          IF ( useDiagnostics ) THEN
836           CALL TIMER_START('DO_STATEVARS_DIAGS  [FORWARD_STEP]',myThid)
837           CALL DO_STATEVARS_DIAGS( myTime, 2, myIter, myThid )
838           CALL TIMER_STOP ('DO_STATEVARS_DIAGS  [FORWARD_STEP]',myThid)
839          ENDIF
840    #endif
841    
842    #ifdef ALLOW_GRIDALT
843          IF (useGRIDALT) THEN
844             CALL GRIDALT_UPDATE(myThid)
845          ENDIF
846    #endif
847    
848    #ifdef ALLOW_FIZHI
849          IF (useFIZHI) THEN
850             CALL TIMER_START('FIZHI               [FORWARD_STEP]',myThid)
851             CALL STEP_FIZHI_CORR ( myTime, myIter, myThid, dTtracerLev(1) )
852             CALL TIMER_STOP ('FIZHI               [FORWARD_STEP]',myThid)
853          ENDIF
854    #endif
855    
856  #ifdef ALLOW_FLT  #ifdef ALLOW_FLT
857  C--   Calculate float trajectories  C--   Calculate float trajectories
858        IF (useFLT) THEN        IF (useFLT) THEN
859          CALL TIMER_START('FLOATS            [THE_MAIN_LOOP]',myThid)          CALL TIMER_START('FLOATS            [FORWARD_STEP]',myThid)
860          CALL FLT_MAIN(myIter,myTime, myThid)          CALL FLT_MAIN( myTime, myIter, myThid )
861          CALL TIMER_STOP ('FLOATS            [THE_MAIN_LOOP]',myThid)          CALL TIMER_STOP ('FLOATS            [FORWARD_STEP]',myThid)
862        ENDIF        ENDIF
863  #endif  #endif
864    
865  #ifndef EXCLUDE_MONITOR  #ifdef ALLOW_TIMEAVE
866    C--   State-variables time-averaging
867          CALL TIMER_START('DO_STATEVARS_TAVE   [FORWARD_STEP]',myThid)
868          CALL DO_STATEVARS_TAVE( myTime, myIter, myThid )
869          CALL TIMER_STOP ('DO_STATEVARS_TAVE   [FORWARD_STEP]',myThid)
870    #endif
871    
872    #ifdef ALLOW_MONITOR
873          IF ( .NOT.useOffLine ) THEN
874  C--   Check status of solution (statistics, cfl, etc...)  C--   Check status of solution (statistics, cfl, etc...)
875        CALL MONITOR( myIter, myTime, myThid )          CALL TIMER_START('MONITOR             [FORWARD_STEP]',myThid)
876  #endif /* EXCLUDE_MONITOR */          CALL MONITOR( myIter, myTime, myThid )
877            CALL TIMER_STOP ('MONITOR             [FORWARD_STEP]',myThid)
878          ENDIF
879    #endif /* ALLOW_MONITOR */
880    
881    #ifdef ALLOW_COST
882    C--     compare model with data and compute cost function
883    C--     this is done after exchanges to allow interpolation
884          CALL TIMER_START('COST_TILE           [FORWARD_STEP]',myThid)
885          CALL COST_TILE  ( myTime, myIter, myThid )
886          CALL TIMER_STOP ('COST_TILE           [FORWARD_STEP]',myThid)
887    #endif
888    
 #ifndef ALLOW_AUTODIFF_TAMC  
889  C--   Do IO if needed.  C--   Do IO if needed.
890        CALL TIMER_START('DO_THE_MODEL_IO     [THE_MAIN_LOOP]',myThid)        CALL TIMER_START('DO_THE_MODEL_IO     [FORWARD_STEP]',myThid)
891        CALL DO_THE_MODEL_IO( myTime, myIter, myThid )        CALL DO_THE_MODEL_IO( myTime, myIter, myThid )
892        CALL TIMER_STOP ('DO_THE_MODEL_IO     [THE_MAIN_LOOP]',myThid)        CALL TIMER_STOP ('DO_THE_MODEL_IO     [FORWARD_STEP]',myThid)
893    
894          modelEnd = myTime.EQ.endTime .OR. myIter.EQ.nEndIter
895    #ifdef HAVE_SIGREG
896          IF ( useSIGREG ) THEN
897            modelEnd = modelEnd .OR. ( i_got_signal.GT.0 )
898          ENDIF
899    #endif /* HAVE_SIGREG */
900    
901  C--   Save state for restarts  C--   Save state for restarts
902  C     Note:    (jmc: is it still the case after ckp35 ?)        CALL TIMER_START('DO_WRITE_PICKUP     [FORWARD_STEP]',myThid)
903  C     =====        CALL DO_WRITE_PICKUP(
904  C     Because of the ordering of the timestepping code and       I                      modelEnd, myTime, myIter, myThid )
905  C     tendency term code at end of loop model arrays hold        CALL TIMER_STOP ('DO_WRITE_PICKUP     [FORWARD_STEP]',myThid)
906  C     U,V,T,S  at "time-level" N but gu, gv, gs, gt, guNM1,...  
907  C     at "time-level" N+1/2 (guNM1 at "time-level" N+1/2 is  #ifdef HAVE_SIGREG
908  C     gu at "time-level" N-1/2) and etaN at "time-level" N+1/2.        IF ( useSIGREG ) THEN
909  C      where N = I+timeLevBase-1          IF ( modelEnd .AND. i_got_signal.GT.0 ) THEN
910  C     Thus a checkpoint contains U.0000000000, GU.0000000001 and            STOP 'Checkpoint completed -- killed by signal handler'
911  C     etaN.0000000001 in the indexing scheme used for the model          ENDIF
912  C     "state" files. This example is referred to as a checkpoint        ENDIF
913  C     at time level 1  #endif /* HAVE_SIGREG */
       CALL TIMER_START('WRITE_CHECKPOINT    [THE_MAIN_LOOP]',myThid)  
       CALL WRITE_CHECKPOINT(  
      &        .FALSE., myTime, myIter, myThid )  
       CALL TIMER_STOP ('WRITE_CHECKPOINT    [THE_MAIN_LOOP]',myThid)  
914    
915  #endif /* ALLOW_AUTODIFF_TAMC */  #ifdef ALLOW_AUTODIFF_TAMC
916          CALL AUTODIFF_INADMODE_SET( myThid )
917    #endif
918    
919    #ifdef ALLOW_SHOWFLOPS
920          CALL TIMER_START('SHOWFLOPS_INLOOP   [THE_MAIN_LOOP]', mythid)
921          CALL SHOWFLOPS_INLOOP( iloop, mythid )
922          CALL TIMER_STOP ('SHOWFLOPS_INLOOP   [THE_MAIN_LOOP]', mythid)
923    #endif
924    
925    #ifdef ALLOW_DEBUG
926          IF ( debugLevel .GE. debLevB )
927         &    CALL DEBUG_LEAVE('FORWARD_STEP',myThid)
928    #endif
929    
930          RETURN
931        END        END
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