/[MITgcm]/MITgcm/model/src/forward_step.F
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Revision 1.100 - (hide annotations) (download)
Mon Jul 26 20:18:14 2004 UTC (19 years, 10 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint54d_post
Changes since 1.99: +1 -30 lines
move ocean specific S/R calls (FREEZE_SURFACE, THSICE_MAIN, OCN_APPLY_IMPORT)
 from forward_step.F to do_oceanic_phys.F

1 jmc 1.100 C $Header: /u/gcmpack/MITgcm/model/src/forward_step.F,v 1.99 2004/07/13 16:48:48 jmc Exp $
2 adcroft 1.15 C $Name: $
3 adcroft 1.1
4 edhill 1.64 #include "PACKAGES_CONFIG.h"
5 adcroft 1.1 #include "CPP_OPTIONS.h"
6 edhill 1.64
7 stephd 1.55 cswdptr -- add --
8 heimbach 1.56 #ifdef ALLOW_GCHEM
9     # include "GCHEM_OPTIONS.h"
10 stephd 1.55 #endif
11     cswdptr -- end add ---
12 adcroft 1.1
13 cnh 1.22 CBOP
14     C !ROUTINE: FORWARD_STEP
15     C !INTERFACE:
16 adcroft 1.13 SUBROUTINE FORWARD_STEP( iloop, myTime, myIter, myThid )
17 heimbach 1.12
18 cnh 1.22 C !DESCRIPTION: \bv
19     C *==================================================================
20     C | SUBROUTINE forward_step
21     C | o Run the ocean model and, optionally, evaluate a cost function.
22     C *==================================================================
23     C |
24     C | THE_MAIN_LOOP is the toplevel routine for the Tangent Linear and
25     C | Adjoint Model Compiler (TAMC). For this purpose the initialization
26     C | of the model was split into two parts. Those parameters that do
27     C | not depend on a specific model run are set in INITIALISE_FIXED,
28     C | whereas those that do depend on the specific realization are
29     C | initialized in INITIALISE_VARIA.
30     C |
31     C *==================================================================
32     C \ev
33 adcroft 1.1
34 cnh 1.22 C !USES:
35     IMPLICIT NONE
36     C == Global variables ==
37 adcroft 1.1 #include "SIZE.h"
38     #include "EEPARAMS.h"
39     #include "PARAMS.h"
40     #include "DYNVARS.h"
41    
42 jmc 1.27 #ifdef ALLOW_SHAP_FILT
43 jmc 1.91 # include "SHAP_FILT.h"
44 jmc 1.27 #endif
45     #ifdef ALLOW_ZONAL_FILT
46 jmc 1.91 # include "ZONAL_FILT.h"
47 jmc 1.27 #endif
48 jmc 1.93 #ifdef COMPONENT_MODULE
49     # include "CPL_PARAMS.h"
50     #endif
51 jmc 1.27
52 heimbach 1.12 #ifdef ALLOW_AUTODIFF_TAMC
53 jmc 1.91 # include "FFIELDS.h"
54    
55     # ifdef ALLOW_NONHYDROSTATIC
56     # include "CG3D.h"
57     # endif
58    
59 heimbach 1.30 # include "tamc.h"
60     # include "ctrl.h"
61     # include "ctrl_dummy.h"
62     # include "cost.h"
63 heimbach 1.37 # include "EOS.h"
64 edhill 1.69 # ifdef ALLOW_EXF
65 heimbach 1.30 # include "exf_fields.h"
66 heimbach 1.85 # include "exf_clim_fields.h"
67 jmc 1.63 # ifdef ALLOW_BULKFORMULAE
68 heimbach 1.30 # include "exf_constants.h"
69     # endif
70     # endif
71     # ifdef ALLOW_OBCS
72     # include "OBCS.h"
73     # endif
74 heimbach 1.56 # ifdef ALLOW_PTRACERS
75 jmc 1.99 # include "PTRACERS_SIZE.h"
76 heimbach 1.56 # include "PTRACERS.h"
77 heimbach 1.82 # endif
78     # ifdef ALLOW_CD_CODE
79     # include "CD_CODE_VARS.h"
80 heimbach 1.56 # endif
81 heimbach 1.92 # ifdef ALLOW_EBM
82     # include "EBM.h"
83     # endif
84 heimbach 1.56 #endif /* ALLOW_AUTODIFF_TAMC */
85 heimbach 1.12
86 cnh 1.22 C !LOCAL VARIABLES:
87     C == Routine arguments ==
88 adcroft 1.13 C note: under the multi-threaded model myiter and
89     C mytime are local variables passed around as routine
90     C arguments. Although this is fiddly it saves the need to
91     C impose additional synchronisation points when they are
92     C updated.
93 jmc 1.93 C myIter - iteration counter for this thread
94     C myTime - time counter for this thread
95     C myThid - thread number for this instance of the routine.
96     INTEGER iloop
97     INTEGER myThid
98     INTEGER myIter
99     _RL myTime
100 molod 1.83
101 jmc 1.93 C == Local variables ==
102     INTEGER myItP1
103 cnh 1.22 CEOP
104 heimbach 1.12
105 edhill 1.71 #ifdef ALLOW_DEBUG
106 heimbach 1.57 IF ( debugLevel .GE. debLevB )
107     & CALL DEBUG_ENTER('FORWARD_STEP',myThid)
108 adcroft 1.53 #endif
109    
110 heimbach 1.12 #ifdef ALLOW_AUTODIFF_TAMC
111 dimitri 1.45 C-- Reset the model iteration counter and the model time.
112     myiter = nIter0 + (iloop-1)
113     mytime = startTime + float(iloop-1)*deltaTclock
114 heimbach 1.12 #endif
115    
116 heimbach 1.32 #if (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_AUTODIFF_MONITOR))
117 dimitri 1.45 C Include call to a dummy routine. Its adjoint will be
118     C called at the proper place in the adjoint code.
119     C The adjoint routine will print out adjoint values
120     C if requested. The location of the call is important,
121     C it has to be after the adjoint of the exchanges
122     C (DO_GTERM_BLOCKING_EXCHANGES).
123     CALL DUMMY_IN_STEPPING( myTime, myIter, myThid )
124 heimbach 1.46 cph I've commented this line since it may conflict with MITgcm's adjoint
125     cph However, need to check whether that's still consistent
126     cph with the ecco-branch (it should).
127     cph CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )
128 heimbach 1.16 #endif
129    
130 heimbach 1.28 #ifdef ALLOW_AUTODIFF_TAMC
131     c**************************************
132     #include "checkpoint_lev1_directives.h"
133     c**************************************
134 heimbach 1.23 #endif
135 cheisey 1.38
136 heimbach 1.37 C-- Call external forcing package
137 cheisey 1.40 #ifdef ALLOW_BULK_FORCE
138 jmc 1.76 IF ( useBulkForce ) THEN
139 edhill 1.71 #ifdef ALLOW_DEBUG
140 jmc 1.58 IF ( debugLevel .GE. debLevB )
141 heimbach 1.57 & CALL DEBUG_CALL('BULKF_FIELDS_LOAD',myThid)
142 adcroft 1.53 #endif
143 jmc 1.76 CALL TIMER_START('BULKF_FORCING [FORWARD_STEP]',mythid)
144     C- load all forcing fields at current time
145     CALL BULKF_FIELDS_LOAD( myTime, myIter, myThid )
146     C- calculate qnet and empmr (and wind stress)
147     CALL BULKF_FORCING( myTime, myIter, myThid )
148     CALL TIMER_STOP ('BULKF_FORCING [FORWARD_STEP]',mythid)
149 jmc 1.63 ELSE
150 jmc 1.58 #endif /* ALLOW_BULK_FORCE */
151 jmc 1.63
152 edhill 1.64 # ifdef ALLOW_EXF
153 heimbach 1.72 # ifdef ALLOW_DEBUG
154 heimbach 1.57 IF ( debugLevel .GE. debLevB )
155     & CALL DEBUG_CALL('EXF_GETFORCING',myThid)
156 heimbach 1.72 # endif
157 dimitri 1.45 CALL TIMER_START('EXF_GETFORCING [FORWARD_STEP]',mythid)
158     CALL EXF_GETFORCING( mytime, myiter, mythid )
159     CALL TIMER_STOP ('EXF_GETFORCING [FORWARD_STEP]',mythid)
160 edhill 1.64 # else /* ALLOW_EXF undef */
161 heimbach 1.49 cph The following IF-statement creates an additional dependency
162     cph for the forcing fields requiring additional storing.
163     cph Therefore, the IF-statement will be put between CPP-OPTIONS,
164     cph assuming that ALLOW_SEAICE has not yet been differentiated.
165 heimbach 1.92 # if (defined (ALLOW_SEAICE) || defined (ALLOW_EBM))
166     IF ( .NOT. useSEAICE .AND. .NOT. useEBM ) THEN
167 heimbach 1.49 # endif
168 edhill 1.71 #ifdef ALLOW_DEBUG
169 heimbach 1.57 IF ( debugLevel .GE. debLevB )
170     & CALL DEBUG_CALL('EXTERNAL_FIELDS_LOAD',myThid)
171 adcroft 1.53 #endif
172 dimitri 1.45 CALL TIMER_START('EXTERNAL_FIELDS_LOAD[FORWARD_STEP]',mythid)
173     CALL EXTERNAL_FIELDS_LOAD( mytime, myiter, mythid )
174     CALL TIMER_STOP ('EXTERNAL_FIELDS_LOAD[FORWARD_STEP]',mythid)
175 heimbach 1.92 # if (defined (ALLOW_SEAICE) || defined (ALLOW_EBM))
176 dimitri 1.45 ENDIF
177 heimbach 1.49 # endif
178 edhill 1.64 # endif /* ALLOW_EXF */
179 jmc 1.63 #ifdef ALLOW_BULK_FORCE
180     C-- end of if/else block useBulfforce --
181     ENDIF
182     #endif /* ALLOW_BULK_FORCE */
183 heimbach 1.49
184 heimbach 1.68 #ifdef ALLOW_AUTODIFF
185 heimbach 1.49 c-- Add control vector for forcing and parameter fields
186     if ( myiter .EQ. nIter0 )
187     & CALL CTRL_MAP_FORCING (mythid)
188     #endif
189 cheisey 1.38
190 heimbach 1.49 # ifdef ALLOW_SEAICE
191 dimitri 1.45 C-- Call sea ice model to compute forcing/external data fields. In
192     C addition to computing prognostic sea-ice variables and diagnosing the
193     C forcing/external data fields that drive the ocean model, SEAICE_MODEL
194     C also sets theta to the freezing point under sea-ice. The implied
195     C surface heat flux is then stored in variable surfaceTendencyTice,
196     C which is needed by KPP package (kpp_calc.F and kpp_transport_t.F)
197     C to diagnose surface buoyancy fluxes and for the non-local transport
198     C term. Because this call precedes model thermodynamics, temperature
199     C under sea-ice may not be "exactly" at the freezing point by the time
200     C theta is dumped or time-averaged.
201     IF ( useSEAICE ) THEN
202 edhill 1.71 #ifdef ALLOW_DEBUG
203 heimbach 1.57 IF ( debugLevel .GE. debLevB )
204     & CALL DEBUG_CALL('SEAICE_MODEL',myThid)
205 adcroft 1.53 #endif
206 heimbach 1.36 CALL TIMER_START('SEAICE_MODEL [FORWARD_STEP]',myThid)
207 jmc 1.41 CALL SEAICE_MODEL( myTime, myIter, myThid )
208 heimbach 1.36 CALL TIMER_STOP ('SEAICE_MODEL [FORWARD_STEP]',myThid)
209 dimitri 1.45 ENDIF
210 dimitri 1.50 # endif /* ALLOW_SEAICE */
211 dimitri 1.73
212 heimbach 1.56 #ifdef ALLOW_AUTODIFF_TAMC
213     # ifdef ALLOW_PTRACERS
214     cph this replaces _bibj storing of ptracer within thermodynamics
215     CADJ STORE ptracer = comlev1, key = ikey_dynamics
216     # endif
217     #endif
218 stephd 1.62
219     #ifdef ALLOW_PTRACERS
220     # ifdef ALLOW_GCHEM
221     CALL GCHEM_FIELDS_LOAD( mytime, myiter, mythid )
222     # endif
223     #endif
224 jmc 1.78
225     #ifdef COMPONENT_MODULE
226 jmc 1.93 IF ( useCoupler .AND. cpl_earlyExpImpCall ) THEN
227 jmc 1.78 C Post coupling data that I export.
228     C Read in coupling data that I import.
229     CALL TIMER_START('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
230     CALL CPL_EXPORT_MY_DATA( myIter, myTime, myThid )
231     CALL CPL_IMPORT_EXTERNAL_DATA( myIter, myTime, myThid )
232     CALL TIMER_STOP ('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
233     ENDIF
234     #endif /* COMPONENT_MODULE */
235 stephd 1.62
236 heimbach 1.92 #ifdef ALLOW_EBM
237     IF ( useEBM ) THEN
238     # ifdef ALLOW_DEBUG
239     IF ( debugLevel .GE. debLevB )
240     & CALL DEBUG_CALL('EBM',myThid)
241     # endif
242     CALL TIMER_START('EBM [FORWARD_STEP]',mythid)
243     CALL EBM_DRIVER ( myTime, myIter, myThid )
244     CALL TIMER_STOP ('EBM [FORWARD_STEP]',mythid)
245     ENDIF
246     #endif
247 molod 1.79
248 jmc 1.97 C-- Step forward fields and calculate time tendency terms.
249    
250     #ifdef ALLOW_DEBUG
251     IF ( debugLevel .GE. debLevB )
252     & CALL DEBUG_CALL('DO_ATMOSPHERIC_PHYS',myThid)
253     #endif
254     CALL TIMER_START('DO_ATMOSPHERIC_PHYS [FORWARD_STEP]',mythid)
255     CALL DO_ATMOSPHERIC_PHYS( myTime, myIter, myThid )
256     CALL TIMER_STOP ('DO_ATMOSPHERIC_PHYS [FORWARD_STEP]',mythid)
257    
258 edhill 1.71 #ifdef ALLOW_DEBUG
259 jmc 1.96 IF ( debugLevel .GE. debLevB )
260     & CALL DEBUG_CALL('DO_OCEANIC_PHYS',myThid)
261     #endif
262     CALL TIMER_START('DO_OCEANIC_PHYS [FORWARD_STEP]',mythid)
263     CALL DO_OCEANIC_PHYS( myTime, myIter, myThid )
264     CALL TIMER_STOP ('DO_OCEANIC_PHYS [FORWARD_STEP]',mythid)
265    
266     IF ( .NOT.staggerTimeStep ) THEN
267     #ifdef ALLOW_DEBUG
268     IF ( debugLevel .GE. debLevB )
269 heimbach 1.57 & CALL DEBUG_CALL('THERMODYNAMICS',myThid)
270 adcroft 1.53 #endif
271 heimbach 1.36 CALL TIMER_START('THERMODYNAMICS [FORWARD_STEP]',mythid)
272 adcroft 1.15 CALL THERMODYNAMICS( myTime, myIter, myThid )
273 heimbach 1.36 CALL TIMER_STOP ('THERMODYNAMICS [FORWARD_STEP]',mythid)
274 jmc 1.96 C-- if not staggerTimeStep: end
275 dimitri 1.45 ENDIF
276 jmc 1.93
277     #ifdef COMPONENT_MODULE
278     IF ( useCoupler .AND. .NOT.cpl_earlyExpImpCall ) THEN
279     C Post coupling data that I export.
280     C Read in coupling data that I import.
281     myItP1 = myIter + 1
282     CALL TIMER_START('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
283     CALL CPL_EXPORT_MY_DATA( myItP1, myTime, myThid )
284     CALL CPL_IMPORT_EXTERNAL_DATA( myItP1, myTime, myThid )
285     CALL TIMER_STOP ('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
286     # ifndef ALLOW_AIM
287     IF ( useRealFreshWaterFlux ) THEN
288     CALL OCN_APPLY_IMPORT( .FALSE., myTime, myIter, myThid )
289     ENDIF
290     # endif
291     ENDIF
292     #endif /* COMPONENT_MODULE */
293 heimbach 1.12
294 dimitri 1.45 C-- Step forward fields and calculate time tendency terms.
295 heimbach 1.61 #ifndef ALLOW_AUTODIFF_TAMC
296 dimitri 1.45 IF ( momStepping ) THEN
297 heimbach 1.61 #endif
298 edhill 1.71 #ifdef ALLOW_DEBUG
299 heimbach 1.57 IF ( debugLevel .GE. debLevB )
300     & CALL DEBUG_CALL('DYNAMICS',myThid)
301 adcroft 1.53 #endif
302 heimbach 1.36 CALL TIMER_START('DYNAMICS [FORWARD_STEP]',mythid)
303 heimbach 1.12 CALL DYNAMICS( myTime, myIter, myThid )
304 heimbach 1.36 CALL TIMER_STOP ('DYNAMICS [FORWARD_STEP]',mythid)
305 heimbach 1.61 #ifndef ALLOW_AUTODIFF_TAMC
306 dimitri 1.45 ENDIF
307 heimbach 1.61 #endif
308 heimbach 1.12
309 adcroft 1.1 #ifdef ALLOW_NONHYDROSTATIC
310     C-- Step forward W field in N-H algorithm
311 dimitri 1.45 IF ( momStepping .AND. nonHydrostatic ) THEN
312 edhill 1.71 #ifdef ALLOW_DEBUG
313 heimbach 1.57 IF ( debugLevel .GE. debLevB )
314     & CALL DEBUG_CALL('CALC_GW',myThid)
315 adcroft 1.53 #endif
316 dimitri 1.45 CALL TIMER_START('CALC_GW [FORWARD_STEP]',myThid)
317     CALL CALC_GW(myThid)
318     CALL TIMER_STOP ('CALC_GW [FORWARD_STEP]',myThid)
319     ENDIF
320 adcroft 1.1 #endif
321 jmc 1.18
322 jmc 1.96 C-- Update time-counter
323     myIter = nIter0 + iLoop
324     myTime = startTime + deltaTClock * float(iLoop)
325    
326     C-- Update geometric factors:
327 jmc 1.18 #ifdef NONLIN_FRSURF
328 jmc 1.96 C- update hfacC,W,S and recip_hFac according to etaH(n+1) :
329 jmc 1.18 IF ( nonlinFreeSurf.GT.0) THEN
330 jmc 1.48 IF ( select_rStar.GT.0 ) THEN
331     CALL TIMER_START('UPDATE_R_STAR [FORWARD_STEP]',myThid)
332     CALL UPDATE_R_STAR( myTime, myIter, myThid )
333     CALL TIMER_STOP ('UPDATE_R_STAR [FORWARD_STEP]',myThid)
334     ELSE
335 dimitri 1.45 CALL TIMER_START('UPDATE_SURF_DR [FORWARD_STEP]',myThid)
336 jmc 1.18 CALL UPDATE_SURF_DR( myTime, myIter, myThid )
337 heimbach 1.36 CALL TIMER_STOP ('UPDATE_SURF_DR [FORWARD_STEP]',myThid)
338 jmc 1.48 ENDIF
339 jmc 1.18 ENDIF
340     C- update also CG2D matrix (and preconditioner)
341 jmc 1.33 IF ( momStepping .AND. nonlinFreeSurf.GT.2 ) THEN
342 dimitri 1.45 CALL TIMER_START('UPDATE_CG2D [FORWARD_STEP]',myThid)
343 jmc 1.18 CALL UPDATE_CG2D( myTime, myIter, myThid )
344 jmc 1.47 CALL TIMER_STOP ('UPDATE_CG2D [FORWARD_STEP]',myThid)
345 adcroft 1.19 ENDIF
346 jmc 1.18 #endif
347 adcroft 1.1
348 jmc 1.27 C-- Apply Filters to u*,v* before SOLVE_FOR_PRESSURE
349     #ifdef ALLOW_SHAP_FILT
350     IF (useSHAP_FILT .AND. shap_filt_uvStar) THEN
351 heimbach 1.36 CALL TIMER_START('SHAP_FILT [FORWARD_STEP]',myThid)
352 jmc 1.27 IF (implicDiv2Dflow.LT.1.) THEN
353     C-- Explicit+Implicit part of the Barotropic Flow Divergence
354     C => Filtering of uVel,vVel is necessary
355 jmc 1.59 CALL SHAP_FILT_APPLY_UV( uVel,vVel,
356 jmc 1.96 & myTime, myIter, myThid )
357 jmc 1.27 ENDIF
358 jmc 1.96 CALL SHAP_FILT_APPLY_UV( gU,gV,myTime,myIter,myThid)
359 heimbach 1.36 CALL TIMER_STOP ('SHAP_FILT [FORWARD_STEP]',myThid)
360 jmc 1.27 ENDIF
361     #endif
362     #ifdef ALLOW_ZONAL_FILT
363     IF (useZONAL_FILT .AND. zonal_filt_uvStar) THEN
364 heimbach 1.36 CALL TIMER_START('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid)
365 jmc 1.27 IF (implicDiv2Dflow.LT.1.) THEN
366     C-- Explicit+Implicit part of the Barotropic Flow Divergence
367     C => Filtering of uVel,vVel is necessary
368     CALL ZONAL_FILT_APPLY_UV( uVel, vVel, myThid )
369     ENDIF
370 jmc 1.59 CALL ZONAL_FILT_APPLY_UV( gU, gV, myThid )
371 heimbach 1.36 CALL TIMER_STOP ('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid)
372 jmc 1.27 ENDIF
373     #endif
374 heimbach 1.12
375 adcroft 1.1 C-- Solve elliptic equation(s).
376     C Two-dimensional only for conventional hydrostatic or
377     C three-dimensional for non-hydrostatic and/or IGW scheme.
378 adcroft 1.19 IF ( momStepping ) THEN
379 jmc 1.96 CALL TIMER_START('SOLVE_FOR_PRESSURE [FORWARD_STEP]',myThid)
380     CALL SOLVE_FOR_PRESSURE(myTime, myIter, myThid)
381     CALL TIMER_STOP ('SOLVE_FOR_PRESSURE [FORWARD_STEP]',myThid)
382     ENDIF
383    
384     C-- Correct divergence in flow field and cycle time-stepping momentum
385     c IF ( momStepping ) THEN
386     CALL TIMER_START('UV_CORRECTION_STEP [FORWARD_STEP]',myThid)
387     CALL MOMENTUM_CORRECTION_STEP(myTime, myIter, myThid)
388     CALL TIMER_STOP ('UV_CORRECTION_STEP [FORWARD_STEP]',myThid)
389     c ENDIF
390    
391     #ifdef EXACT_CONSERV
392     IF (exactConserv) THEN
393     C-- Update etaH(n+1) :
394     CALL TIMER_START('UPDATE_ETAH [FORWARD_STEP]',mythid)
395     CALL UPDATE_ETAH( myTime, myIter, myThid )
396     CALL TIMER_STOP ('UPDATE_ETAH [FORWARD_STEP]',mythid)
397 adcroft 1.19 ENDIF
398 jmc 1.96 #endif /* EXACT_CONSERV */
399    
400     #ifdef NONLIN_FRSURF
401     IF ( select_rStar.NE.0 ) THEN
402     C-- r* : compute the future level thickness according to etaH(n+1)
403     CALL TIMER_START('CALC_R_STAR [FORWARD_STEP]',mythid)
404     CALL CALC_R_STAR(etaH, myTime, myIter, myThid )
405     CALL TIMER_STOP ('CALC_R_STAR [FORWARD_STEP]',mythid)
406     ELSEIF ( nonlinFreeSurf.GT.0) THEN
407     C-- compute the future surface level thickness according to etaH(n+1)
408     CALL TIMER_START('CALC_SURF_DR [FORWARD_STEP]',mythid)
409     CALL CALC_SURF_DR(etaH, myTime, myIter, myThid )
410     CALL TIMER_STOP ('CALC_SURF_DR [FORWARD_STEP]',mythid)
411     ENDIF
412     #endif /* NONLIN_FRSURF */
413    
414     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
415     IF ( staggerTimeStep ) THEN
416 jmc 1.98 C-- do exchanges of U,V (needed for multiDim) when using stagger time-step :
417     #ifdef ALLOW_DEBUG
418     IF ( debugLevel .GE. debLevB )
419     & CALL DEBUG_CALL('DO_STAGGER_FIELDS_EXCH.',myThid)
420     #endif
421     CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
422     CALL DO_STAGGER_FIELDS_EXCHANGES( myTime, myIter, myThid )
423     CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
424 jmc 1.96
425     #ifdef ALLOW_DEBUG
426     IF ( debugLevel .GE. debLevB )
427     & CALL DEBUG_CALL('THERMODYNAMICS',myThid)
428     #endif
429     CALL TIMER_START('THERMODYNAMICS [FORWARD_STEP]',mythid)
430     CALL THERMODYNAMICS( myTime, myIter, myThid )
431     CALL TIMER_STOP ('THERMODYNAMICS [FORWARD_STEP]',mythid)
432    
433     C-- if staggerTimeStep: end
434     ENDIF
435     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
436 adcroft 1.1
437 heimbach 1.37 #ifdef ALLOW_AUTODIFF_TAMC
438     cph This is needed because convective_adjustment calls
439     cph find_rho which may use pressure()
440 heimbach 1.51 CADJ STORE totphihyd = comlev1, key = ikey_dynamics
441 heimbach 1.37 #endif
442 jmc 1.96 C-- Cycle time-stepping Tracers arrays (T,S,+pTracers)
443     CALL TIMER_START('TS_CORRECTION_STEP [FORWARD_STEP]',myThid)
444     CALL TRACERS_CORRECTION_STEP(myTime, myIter, myThid)
445     CALL TIMER_STOP ('TS_CORRECTION_STEP [FORWARD_STEP]',myThid)
446 adcroft 1.5
447 adcroft 1.1 C-- Do "blocking" sends and receives for tendency "overlap" terms
448 heimbach 1.36 c CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
449 jmc 1.7 c CALL DO_GTERM_BLOCKING_EXCHANGES( myThid )
450 heimbach 1.36 c CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
451 adcroft 1.5
452     C-- Do "blocking" sends and receives for field "overlap" terms
453 heimbach 1.36 CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
454 adcroft 1.5 CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )
455 heimbach 1.36 CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
456 stephd 1.54
457     cswdptr -- add for seperate timestepping of chemical/biological/forcing
458     cswdptr of ptracers ---
459 heimbach 1.56 #ifdef ALLOW_GCHEM
460 edhill 1.64 ceh3 This is broken -- this ifdef should not be visible!
461 stephd 1.62 #ifdef PTRACERS_SEPARATE_FORCING
462 edhill 1.64 ceh3 needs an IF ( use GCHEM ) THEN
463 stephd 1.62 call GCHEM_FORCING_SEP( myTime,myIter,myThid )
464 edhill 1.64 #endif /* PTRACERS_SEPARATE_FORCING */
465     #endif /* ALLOW_GCHEM */
466 stephd 1.54 cswdptr -- end add ---
467 molod 1.83
468     C AMM
469     #ifdef ALLOW_GRIDALT
470 molod 1.88 if (useGRIDALT) then
471     CALL GRIDALT_UPDATE(myThid)
472 molod 1.89 endif
473 molod 1.83 #endif
474     C AMM
475 stephd 1.54
476 molod 1.79 C AMM
477     #ifdef ALLOW_FIZHI
478 molod 1.88 if( useFIZHI) then
479 molod 1.90 CALL TIMER_START('FIZHI [FORWARD_STEP]',mythid)
480 molod 1.88 CALL STEP_FIZHI_CORR ( myTime, myIter, myThid )
481 molod 1.90 CALL TIMER_STOP('FIZHI [FORWARD_STEP]',mythid)
482 molod 1.88 endif
483 molod 1.79 #endif
484     C AMM
485 adcroft 1.20
486     #ifdef ALLOW_FLT
487     C-- Calculate float trajectories
488     IF (useFLT) THEN
489 heimbach 1.36 CALL TIMER_START('FLOATS [FORWARD_STEP]',myThid)
490 adcroft 1.20 CALL FLT_MAIN(myIter,myTime, myThid)
491 heimbach 1.36 CALL TIMER_STOP ('FLOATS [FORWARD_STEP]',myThid)
492 adcroft 1.20 ENDIF
493     #endif
494 heimbach 1.12
495 jmc 1.97 C-- State-variables statistics (time-aver, diagnostics ...)
496     CALL TIMER_START('DO_STATEVARS_DIAGS [FORWARD_STEP]',myThid)
497     CALL DO_STATEVARS_DIAGS( myTime, myIter, myThid )
498     CALL TIMER_STOP ('DO_STATEVARS_DIAGS [FORWARD_STEP]',myThid)
499    
500 edhill 1.70 #ifdef ALLOW_MONITOR
501 heimbach 1.12 C-- Check status of solution (statistics, cfl, etc...)
502 dimitri 1.45 CALL TIMER_START('MONITOR [FORWARD_STEP]',myThid)
503 heimbach 1.12 CALL MONITOR( myIter, myTime, myThid )
504 heimbach 1.36 CALL TIMER_STOP ('MONITOR [FORWARD_STEP]',myThid)
505 edhill 1.70 #endif /* ALLOW_MONITOR */
506 molod 1.86
507 jmc 1.7 C-- Do IO if needed.
508 heimbach 1.36 CALL TIMER_START('DO_THE_MODEL_IO [FORWARD_STEP]',myThid)
509 heimbach 1.12 CALL DO_THE_MODEL_IO( myTime, myIter, myThid )
510 heimbach 1.36 CALL TIMER_STOP ('DO_THE_MODEL_IO [FORWARD_STEP]',myThid)
511 adcroft 1.1
512     C-- Save state for restarts
513 heimbach 1.36 CALL TIMER_START('WRITE_CHECKPOINT [FORWARD_STEP]',myThid)
514 jmc 1.77 CALL PACKAGES_WRITE_PICKUP(
515     I .FALSE., myTime, myIter, myThid )
516 adcroft 1.1 CALL WRITE_CHECKPOINT(
517 jmc 1.77 I .FALSE., myTime, myIter, myThid )
518 heimbach 1.36 CALL TIMER_STOP ('WRITE_CHECKPOINT [FORWARD_STEP]',myThid)
519 adcroft 1.53
520 edhill 1.71 #ifdef ALLOW_DEBUG
521 heimbach 1.57 IF ( debugLevel .GE. debLevB )
522     & CALL DEBUG_LEAVE('FORWARD_STEP',myThid)
523 adcroft 1.53 #endif
524 adcroft 1.1
525 jmc 1.77 RETURN
526 adcroft 1.1 END

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