/[MITgcm]/MITgcm/model/src/forward_step.F
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Contents of /MITgcm/model/src/forward_step.F

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Revision 1.111 - (show annotations) (download)
Mon Dec 20 01:55:37 2004 UTC (19 years, 5 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint57b_post, checkpoint57c_post, checkpoint57c_pre
Changes since 1.110: +8 -1 lines
call diagnostics_switch_onoff at the beginning of the time-step

1 C $Header: /u/gcmpack/MITgcm/model/src/forward_step.F,v 1.110 2004/11/28 23:49:03 mlosch Exp $
2 C $Name: $
3
4 #include "PACKAGES_CONFIG.h"
5 #include "CPP_OPTIONS.h"
6
7 #ifdef ALLOW_OFFLINE
8 # include "OFFLINE_OPTIONS.h"
9 #endif
10 #ifdef ALLOW_GMREDI
11 # include "GMREDI_OPTIONS.h"
12 #endif
13
14 CBOP
15 C !ROUTINE: FORWARD_STEP
16 C !INTERFACE:
17 SUBROUTINE FORWARD_STEP( iloop, myTime, myIter, myThid )
18
19 C !DESCRIPTION: \bv
20 C *==================================================================
21 C | SUBROUTINE forward_step
22 C | o Run the ocean model and, optionally, evaluate a cost function.
23 C *==================================================================
24 C |
25 C | THE_MAIN_LOOP is the toplevel routine for the Tangent Linear and
26 C | Adjoint Model Compiler (TAMC). For this purpose the initialization
27 C | of the model was split into two parts. Those parameters that do
28 C | not depend on a specific model run are set in INITIALISE_FIXED,
29 C | whereas those that do depend on the specific realization are
30 C | initialized in INITIALISE_VARIA.
31 C |
32 C *==================================================================
33 C \ev
34
35 C !USES:
36 IMPLICIT NONE
37 C == Global variables ==
38 #include "SIZE.h"
39 #include "EEPARAMS.h"
40 #include "PARAMS.h"
41 #include "DYNVARS.h"
42
43 #ifdef ALLOW_SHAP_FILT
44 # include "SHAP_FILT.h"
45 #endif
46 #ifdef ALLOW_ZONAL_FILT
47 # include "ZONAL_FILT.h"
48 #endif
49 #ifdef COMPONENT_MODULE
50 # include "CPL_PARAMS.h"
51 #endif
52
53 #ifdef ALLOW_AUTODIFF_TAMC
54 # include "FFIELDS.h"
55
56 # ifdef ALLOW_NONHYDROSTATIC
57 # include "CG3D.h"
58 # endif
59
60 # include "tamc.h"
61 # include "ctrl.h"
62 # include "ctrl_dummy.h"
63 # include "cost.h"
64 # include "EOS.h"
65 # ifdef ALLOW_EXF
66 # include "exf_fields.h"
67 # include "exf_clim_fields.h"
68 # ifdef ALLOW_BULKFORMULAE
69 # include "exf_constants.h"
70 # endif
71 # endif
72 # ifdef ALLOW_OBCS
73 # include "OBCS.h"
74 # endif
75 # ifdef ALLOW_PTRACERS
76 # include "PTRACERS_SIZE.h"
77 # include "PTRACERS.h"
78 # endif
79 # ifdef ALLOW_CD_CODE
80 # include "CD_CODE_VARS.h"
81 # endif
82 # ifdef ALLOW_EBM
83 # include "EBM.h"
84 # endif
85 # ifdef EXACT_CONSERV
86 # include "SURFACE.h"
87 # endif
88 # ifdef ALLOW_KPP
89 # include "KPP.h"
90 # endif
91 # ifdef ALLOW_GMREDI
92 # include "GMREDI.h"
93 # endif
94 #endif /* ALLOW_AUTODIFF_TAMC */
95
96 C !LOCAL VARIABLES:
97 C == Routine arguments ==
98 C note: under the multi-threaded model myiter and
99 C mytime are local variables passed around as routine
100 C arguments. Although this is fiddly it saves the need to
101 C impose additional synchronisation points when they are
102 C updated.
103 C myIter - iteration counter for this thread
104 C myTime - time counter for this thread
105 C myThid - thread number for this instance of the routine.
106 INTEGER iloop
107 INTEGER myThid
108 INTEGER myIter
109 _RL myTime
110
111 C == Local variables ==
112 INTEGER myItP1
113 CEOP
114
115 #ifdef ALLOW_DEBUG
116 IF ( debugLevel .GE. debLevB )
117 & CALL DEBUG_ENTER('FORWARD_STEP',myThid)
118 #endif
119
120 #ifdef ALLOW_AUTODIFF_TAMC
121 C-- Reset the model iteration counter and the model time.
122 myiter = nIter0 + (iloop-1)
123 mytime = startTime + float(iloop-1)*deltaTclock
124 #endif
125
126 #ifdef ALLOW_AUTODIFF_TAMC
127 c**************************************
128 #include "checkpoint_lev1_directives.h"
129 c**************************************
130 #endif
131
132 C-- Switch on/off diagnostics for snap-shot output:
133 #ifdef ALLOW_DIAGNOSTICS
134 IF ( useDiagnostics ) THEN
135 CALL DIAGNOSTICS_SWITCH_ONOFF( myIter, myThid )
136 ENDIF
137 #endif
138
139 C-- Call external forcing package
140 #ifdef ALLOW_BULK_FORCE
141 IF ( useBulkForce ) THEN
142 #ifdef ALLOW_DEBUG
143 IF ( debugLevel .GE. debLevB )
144 & CALL DEBUG_CALL('BULKF_FIELDS_LOAD',myThid)
145 #endif
146 CALL TIMER_START('BULKF_FORCING [FORWARD_STEP]',mythid)
147 C- load all forcing fields at current time
148 CALL BULKF_FIELDS_LOAD( myTime, myIter, myThid )
149 C- calculate qnet and empmr (and wind stress)
150 CALL BULKF_FORCING( myTime, myIter, myThid )
151 CALL TIMER_STOP ('BULKF_FORCING [FORWARD_STEP]',mythid)
152 ELSE
153 #endif /* ALLOW_BULK_FORCE */
154
155 # ifdef ALLOW_EXF
156 # ifdef ALLOW_DEBUG
157 IF ( debugLevel .GE. debLevB )
158 & CALL DEBUG_CALL('EXF_GETFORCING',myThid)
159 # endif
160 CALL TIMER_START('EXF_GETFORCING [FORWARD_STEP]',mythid)
161 CALL EXF_GETFORCING( mytime, myiter, mythid )
162 CALL TIMER_STOP ('EXF_GETFORCING [FORWARD_STEP]',mythid)
163 # else /* ALLOW_EXF undef */
164 cph The following IF-statement creates an additional dependency
165 cph for the forcing fields requiring additional storing.
166 cph Therefore, the IF-statement will be put between CPP-OPTIONS,
167 cph assuming that ALLOW_SEAICE has not yet been differentiated.
168 # if (defined (ALLOW_SEAICE) || defined (ALLOW_EBM))
169 IF ( .NOT. useSEAICE .AND. .NOT. useEBM ) THEN
170 # endif
171 #ifdef ALLOW_DEBUG
172 IF ( debugLevel .GE. debLevB )
173 & CALL DEBUG_CALL('EXTERNAL_FIELDS_LOAD',myThid)
174 #endif
175 CALL TIMER_START('EXTERNAL_FIELDS_LOAD[FORWARD_STEP]',mythid)
176 CALL EXTERNAL_FIELDS_LOAD( mytime, myiter, mythid )
177 CALL TIMER_STOP ('EXTERNAL_FIELDS_LOAD[FORWARD_STEP]',mythid)
178 # if (defined (ALLOW_SEAICE) || defined (ALLOW_EBM))
179 ENDIF
180 # endif
181 # endif /* ALLOW_EXF */
182 #ifdef ALLOW_BULK_FORCE
183 C-- end of if/else block useBulfforce --
184 ENDIF
185 #endif /* ALLOW_BULK_FORCE */
186
187 #ifdef ALLOW_AUTODIFF
188 c-- Add control vector for forcing and parameter fields
189 if ( myiter .EQ. nIter0 )
190 & CALL CTRL_MAP_FORCING (mythid)
191 #endif
192
193 #if (defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_AUTODIFF_MONITOR))
194 C Include call to a dummy routine. Its adjoint will be
195 C called at the proper place in the adjoint code.
196 C The adjoint routine will print out adjoint values
197 C if requested. The location of the call is important,
198 C it has to be after the adjoint of the exchanges
199 C (DO_GTERM_BLOCKING_EXCHANGES).
200 CALL DUMMY_IN_STEPPING( myTime, myIter, myThid )
201 cph I've commented this line since it may conflict with MITgcm's adjoint
202 cph However, need to check whether that's still consistent
203 cph with the ecco-branch (it should).
204 cph CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )
205 #endif
206
207 # ifdef ALLOW_SEAICE
208 C-- Call sea ice model to compute forcing/external data fields. In
209 C addition to computing prognostic sea-ice variables and diagnosing the
210 C forcing/external data fields that drive the ocean model, SEAICE_MODEL
211 C also sets theta to the freezing point under sea-ice. The implied
212 C surface heat flux is then stored in variable surfaceTendencyTice,
213 C which is needed by KPP package (kpp_calc.F and kpp_transport_t.F)
214 C to diagnose surface buoyancy fluxes and for the non-local transport
215 C term. Because this call precedes model thermodynamics, temperature
216 C under sea-ice may not be "exactly" at the freezing point by the time
217 C theta is dumped or time-averaged.
218 IF ( useSEAICE ) THEN
219 #ifdef ALLOW_DEBUG
220 IF ( debugLevel .GE. debLevB )
221 & CALL DEBUG_CALL('SEAICE_MODEL',myThid)
222 #endif
223 CALL TIMER_START('SEAICE_MODEL [FORWARD_STEP]',myThid)
224 CALL SEAICE_MODEL( myTime, myIter, myThid )
225 CALL TIMER_STOP ('SEAICE_MODEL [FORWARD_STEP]',myThid)
226 ENDIF
227 # endif /* ALLOW_SEAICE */
228
229 #ifdef ALLOW_AUTODIFF_TAMC
230 # ifdef ALLOW_PTRACERS
231 cph this replaces _bibj storing of ptracer within thermodynamics
232 CADJ STORE ptracer = comlev1, key = ikey_dynamics
233 # endif
234 #endif
235
236 #ifdef ALLOW_OFFLINE
237 call OFFLINE_FIELDS_LOAD( myTime, myIter, myThid )
238 #endif
239
240 #ifdef ALLOW_PTRACERS
241 # ifdef ALLOW_GCHEM
242 IF ( useGCHEM ) THEN
243 CALL GCHEM_FIELDS_LOAD( mytime, myiter, mythid )
244 ENDIF
245 # endif
246 #endif
247
248 #ifdef COMPONENT_MODULE
249 IF ( useCoupler .AND. cpl_earlyExpImpCall ) THEN
250 C Post coupling data that I export.
251 C Read in coupling data that I import.
252 CALL TIMER_START('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
253 CALL CPL_EXPORT_MY_DATA( myIter, myTime, myThid )
254 CALL CPL_IMPORT_EXTERNAL_DATA( myIter, myTime, myThid )
255 CALL TIMER_STOP ('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
256 ENDIF
257 #endif /* COMPONENT_MODULE */
258
259 #ifdef ALLOW_EBM
260 IF ( useEBM ) THEN
261 # ifdef ALLOW_DEBUG
262 IF ( debugLevel .GE. debLevB )
263 & CALL DEBUG_CALL('EBM',myThid)
264 # endif
265 CALL TIMER_START('EBM [FORWARD_STEP]',mythid)
266 CALL EBM_DRIVER ( myTime, myIter, myThid )
267 CALL TIMER_STOP ('EBM [FORWARD_STEP]',mythid)
268 ENDIF
269 #endif
270
271 C-- Step forward fields and calculate time tendency terms.
272
273 #ifdef ALLOW_DEBUG
274 IF ( debugLevel .GE. debLevB )
275 & CALL DEBUG_CALL('DO_ATMOSPHERIC_PHYS',myThid)
276 #endif
277 CALL TIMER_START('DO_ATMOSPHERIC_PHYS [FORWARD_STEP]',mythid)
278 CALL DO_ATMOSPHERIC_PHYS( myTime, myIter, myThid )
279 CALL TIMER_STOP ('DO_ATMOSPHERIC_PHYS [FORWARD_STEP]',mythid)
280
281 #ifdef ALLOW_AUTODIFF_TAMC
282 CADJ STORE theta = comlev1, key = ikey_dynamics
283 CADJ STORE salt = comlev1, key = ikey_dynamics
284 CADJ STORE totphihyd = comlev1, key = ikey_dynamics
285 CADJ STORE surfaceforcingtice = comlev1, key = ikey_dynamics
286 # ifdef ALLOW_KPP
287 CADJ STORE uvel = comlev1, key = ikey_dynamics
288 CADJ STORE vvel = comlev1, key = ikey_dynamics
289 # endif
290 # ifdef EXACT_CONSERV
291 CADJ STORE empmr = comlev1, key = ikey_dynamics
292 CADJ STORE pmepr = comlev1, key = ikey_dynamics
293 # endif
294 #endif /* ALLOW_AUTODIFF_TAMC */
295
296 #ifndef ALLOW_OFFLINE
297 #ifdef ALLOW_DEBUG
298 IF ( debugLevel .GE. debLevB )
299 & CALL DEBUG_CALL('DO_OCEANIC_PHYS',myThid)
300 #endif
301 CALL TIMER_START('DO_OCEANIC_PHYS [FORWARD_STEP]',mythid)
302 CALL DO_OCEANIC_PHYS( myTime, myIter, myThid )
303 CALL TIMER_STOP ('DO_OCEANIC_PHYS [FORWARD_STEP]',mythid)
304 #endif
305
306 #ifdef ALLOW_GCHEM
307 C GCHEM package is an interface for any bio-geochemical or
308 C ecosystem model you would like to include.
309 C If GCHEM_SEPARATE_FORCING is not defined, you are
310 C responsible for computing tendency terms for passive
311 C tracers and storing them on a 3DxNumPtracers-array called
312 C gchemTendency in GCHEM_CALC_TENDENCY. This tendency is then added
313 C to gPtr in ptracers_forcing later-on.
314 C If GCHEM_SEPARATE_FORCING is defined, you are reponsible for
315 C UPDATING ptracers directly in GCHEM_FORCING_SEP. This amounts
316 C to a completely separate time step that you have to implement
317 C yourself (Eulerian seems to be fine in most cases).
318 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
319 C CAVEAT: Up to now, when GCHEM is turned on the field ptracerForcingSurf,
320 C which is needed for KPP is not set properly. ptracerForcingSurf must
321 C be treated differently depending on whether GCHEM_SEPARATE_FORCING
322 C is define or not. TBD.
323 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
324 #ifdef ALLOW_DEBUG
325 IF ( debugLevel .GE. debLevB )
326 & CALL DEBUG_CALL('GCHEM_CALC_TENDENCY',myThid)
327 #endif
328 IF ( useGCHEM ) THEN
329 CALL TIMER_START('GCHEM_CALC_TENDENCY [FORWARD_STEP]',myThid)
330 CALL GCHEM_CALC_TENDENCY( myTime, myIter, myThid )
331 CALL TIMER_STOP ('GCHEM_CALC_TENDENCY [FORWARD_STEP]',myThid)
332 ENDIF
333 #endif /* ALLOW_GCHEM */
334
335 #ifdef ALLOW_AUTODIFF_TAMC
336 cph needed to be moved here from do_oceanic_physics
337 cph to be visible down the road
338 c
339 CADJ STORE surfaceForcingS = comlev1, key = ikey_dynamics
340 CADJ STORE surfaceForcingT = comlev1, key = ikey_dynamics
341 CADJ STORE surfaceForcingTice = comlev1, key = ikey_dynamics
342 ctest(
343 CADJ STORE IVDConvCount = comlev1, key = ikey_dynamics
344 ctest)
345 # ifdef ALLOW_PTRACERS
346 CADJ STORE surfaceForcingPtr = comlev1, key = ikey_dynamics
347 # endif
348 c
349 # ifdef ALLOW_GMREDI
350 CADJ STORE Kwx = comlev1, key = ikey_dynamics
351 CADJ STORE Kwy = comlev1, key = ikey_dynamics
352 CADJ STORE Kwz = comlev1, key = ikey_dynamics
353 # ifdef GM_BOLUS_ADVEC
354 CADJ STORE GM_PsiX = comlev1, key = ikey_dynamics
355 CADJ STORE GM_PsiY = comlev1, key = ikey_dynamics
356 # endif
357 # endif
358 c
359 # ifdef ALLOW_KPP
360 CADJ STORE KPPghat = comlev1, key = ikey_dynamics
361 CADJ STORE KPPfrac = comlev1, key = ikey_dynamics
362 CADJ STORE KPPdiffKzS = comlev1, key = ikey_dynamics
363 CADJ STORE KPPdiffKzT = comlev1, key = ikey_dynamics
364 # endif
365 #endif /* ALLOW_AUTODIFF_TAMC */
366
367 IF ( .NOT.staggerTimeStep ) THEN
368 #ifdef ALLOW_DEBUG
369 IF ( debugLevel .GE. debLevB )
370 & CALL DEBUG_CALL('THERMODYNAMICS',myThid)
371 #endif
372 CALL TIMER_START('THERMODYNAMICS [FORWARD_STEP]',mythid)
373 CALL THERMODYNAMICS( myTime, myIter, myThid )
374 CALL TIMER_STOP ('THERMODYNAMICS [FORWARD_STEP]',mythid)
375 C-- if not staggerTimeStep: end
376 ENDIF
377
378 #ifdef COMPONENT_MODULE
379 IF ( useCoupler .AND. .NOT.cpl_earlyExpImpCall ) THEN
380 C Post coupling data that I export.
381 C Read in coupling data that I import.
382 myItP1 = myIter + 1
383 CALL TIMER_START('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
384 CALL CPL_EXPORT_MY_DATA( myItP1, myTime, myThid )
385 CALL CPL_IMPORT_EXTERNAL_DATA( myItP1, myTime, myThid )
386 CALL TIMER_STOP ('CPL_EXPORT-IMPORT [FORWARD_STEP]',myThid)
387 # ifndef ALLOW_AIM
388 IF ( useRealFreshWaterFlux ) THEN
389 CALL OCN_APPLY_IMPORT( .FALSE., myTime, myIter, myThid )
390 ENDIF
391 # endif
392 ENDIF
393 #endif /* COMPONENT_MODULE */
394
395 C-- Step forward fields and calculate time tendency terms.
396 #ifndef ALLOW_OFFLINE
397 #ifndef ALLOW_AUTODIFF_TAMC
398 IF ( momStepping ) THEN
399 #endif
400 #ifdef ALLOW_DEBUG
401 IF ( debugLevel .GE. debLevB )
402 & CALL DEBUG_CALL('DYNAMICS',myThid)
403 #endif
404 CALL TIMER_START('DYNAMICS [FORWARD_STEP]',mythid)
405 CALL DYNAMICS( myTime, myIter, myThid )
406 CALL TIMER_STOP ('DYNAMICS [FORWARD_STEP]',mythid)
407 #ifndef ALLOW_AUTODIFF_TAMC
408 ENDIF
409 #endif
410 #endif
411
412 #ifdef ALLOW_NONHYDROSTATIC
413 C-- Step forward W field in N-H algorithm
414 IF ( momStepping .AND. nonHydrostatic ) THEN
415 #ifdef ALLOW_DEBUG
416 IF ( debugLevel .GE. debLevB )
417 & CALL DEBUG_CALL('CALC_GW',myThid)
418 #endif
419 CALL TIMER_START('CALC_GW [FORWARD_STEP]',myThid)
420 CALL CALC_GW(myThid)
421 CALL TIMER_STOP ('CALC_GW [FORWARD_STEP]',myThid)
422 ENDIF
423 #endif
424
425 C-- Update time-counter
426 myIter = nIter0 + iLoop
427 myTime = startTime + deltaTClock * float(iLoop)
428
429 C-- Update geometric factors:
430 #ifdef NONLIN_FRSURF
431 C- update hfacC,W,S and recip_hFac according to etaH(n+1) :
432 IF ( nonlinFreeSurf.GT.0) THEN
433 IF ( select_rStar.GT.0 ) THEN
434 CALL TIMER_START('UPDATE_R_STAR [FORWARD_STEP]',myThid)
435 CALL UPDATE_R_STAR( myTime, myIter, myThid )
436 CALL TIMER_STOP ('UPDATE_R_STAR [FORWARD_STEP]',myThid)
437 ELSE
438 CALL TIMER_START('UPDATE_SURF_DR [FORWARD_STEP]',myThid)
439 CALL UPDATE_SURF_DR( myTime, myIter, myThid )
440 CALL TIMER_STOP ('UPDATE_SURF_DR [FORWARD_STEP]',myThid)
441 ENDIF
442 ENDIF
443 C- update also CG2D matrix (and preconditioner)
444 IF ( momStepping .AND. nonlinFreeSurf.GT.2 ) THEN
445 CALL TIMER_START('UPDATE_CG2D [FORWARD_STEP]',myThid)
446 CALL UPDATE_CG2D( myTime, myIter, myThid )
447 CALL TIMER_STOP ('UPDATE_CG2D [FORWARD_STEP]',myThid)
448 ENDIF
449 #endif
450
451 C-- Apply Filters to u*,v* before SOLVE_FOR_PRESSURE
452 #ifdef ALLOW_SHAP_FILT
453 IF (useSHAP_FILT .AND. shap_filt_uvStar) THEN
454 CALL TIMER_START('SHAP_FILT [FORWARD_STEP]',myThid)
455 IF (implicDiv2Dflow.LT.1.) THEN
456 C-- Explicit+Implicit part of the Barotropic Flow Divergence
457 C => Filtering of uVel,vVel is necessary
458 CALL SHAP_FILT_APPLY_UV( uVel,vVel,
459 & myTime, myIter, myThid )
460 ENDIF
461 CALL SHAP_FILT_APPLY_UV( gU,gV,myTime,myIter,myThid)
462 CALL TIMER_STOP ('SHAP_FILT [FORWARD_STEP]',myThid)
463 ENDIF
464 #endif
465 #ifdef ALLOW_ZONAL_FILT
466 IF (useZONAL_FILT .AND. zonal_filt_uvStar) THEN
467 CALL TIMER_START('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid)
468 IF (implicDiv2Dflow.LT.1.) THEN
469 C-- Explicit+Implicit part of the Barotropic Flow Divergence
470 C => Filtering of uVel,vVel is necessary
471 CALL ZONAL_FILT_APPLY_UV( uVel, vVel, myThid )
472 ENDIF
473 CALL ZONAL_FILT_APPLY_UV( gU, gV, myThid )
474 CALL TIMER_STOP ('ZONAL_FILT_APPLY [FORWARD_STEP]',myThid)
475 ENDIF
476 #endif
477
478 C-- Solve elliptic equation(s).
479 C Two-dimensional only for conventional hydrostatic or
480 C three-dimensional for non-hydrostatic and/or IGW scheme.
481 #ifndef ALLOW_OFFLINE
482 IF ( momStepping ) THEN
483 CALL TIMER_START('SOLVE_FOR_PRESSURE [FORWARD_STEP]',myThid)
484 CALL SOLVE_FOR_PRESSURE(myTime, myIter, myThid)
485 CALL TIMER_STOP ('SOLVE_FOR_PRESSURE [FORWARD_STEP]',myThid)
486 ENDIF
487 #endif
488
489 C-- Correct divergence in flow field and cycle time-stepping momentum
490 c IF ( momStepping ) THEN
491 #ifndef ALLOW_OFFLINE
492 CALL TIMER_START('UV_CORRECTION_STEP [FORWARD_STEP]',myThid)
493 CALL MOMENTUM_CORRECTION_STEP(myTime, myIter, myThid)
494 CALL TIMER_STOP ('UV_CORRECTION_STEP [FORWARD_STEP]',myThid)
495 #endif
496 c ENDIF
497
498 #ifdef EXACT_CONSERV
499 IF (exactConserv) THEN
500 C-- Update etaH(n+1) :
501 CALL TIMER_START('UPDATE_ETAH [FORWARD_STEP]',mythid)
502 CALL UPDATE_ETAH( myTime, myIter, myThid )
503 CALL TIMER_STOP ('UPDATE_ETAH [FORWARD_STEP]',mythid)
504 ENDIF
505 #endif /* EXACT_CONSERV */
506
507 #ifdef NONLIN_FRSURF
508 IF ( select_rStar.NE.0 ) THEN
509 C-- r* : compute the future level thickness according to etaH(n+1)
510 CALL TIMER_START('CALC_R_STAR [FORWARD_STEP]',mythid)
511 CALL CALC_R_STAR(etaH, myTime, myIter, myThid )
512 CALL TIMER_STOP ('CALC_R_STAR [FORWARD_STEP]',mythid)
513 ELSEIF ( nonlinFreeSurf.GT.0) THEN
514 C-- compute the future surface level thickness according to etaH(n+1)
515 CALL TIMER_START('CALC_SURF_DR [FORWARD_STEP]',mythid)
516 CALL CALC_SURF_DR(etaH, myTime, myIter, myThid )
517 CALL TIMER_STOP ('CALC_SURF_DR [FORWARD_STEP]',mythid)
518 ENDIF
519 #endif /* NONLIN_FRSURF */
520
521 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
522 IF ( staggerTimeStep ) THEN
523 C-- do exchanges of U,V (needed for multiDim) when using stagger time-step :
524 #ifdef ALLOW_DEBUG
525 IF ( debugLevel .GE. debLevB )
526 & CALL DEBUG_CALL('DO_STAGGER_FIELDS_EXCH.',myThid)
527 #endif
528 CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
529 CALL DO_STAGGER_FIELDS_EXCHANGES( myTime, myIter, myThid )
530 CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
531
532 #ifdef ALLOW_DEBUG
533 IF ( debugLevel .GE. debLevB )
534 & CALL DEBUG_CALL('THERMODYNAMICS',myThid)
535 #endif
536 CALL TIMER_START('THERMODYNAMICS [FORWARD_STEP]',mythid)
537 CALL THERMODYNAMICS( myTime, myIter, myThid )
538 CALL TIMER_STOP ('THERMODYNAMICS [FORWARD_STEP]',mythid)
539
540 C-- if staggerTimeStep: end
541 ENDIF
542 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
543
544 #ifdef ALLOW_AUTODIFF_TAMC
545 cph This is needed because convective_adjustment calls
546 cph find_rho which may use pressure()
547 CADJ STORE totphihyd = comlev1, key = ikey_dynamics
548 #endif
549 C-- Cycle time-stepping Tracers arrays (T,S,+pTracers)
550 CALL TIMER_START('TS_CORRECTION_STEP [FORWARD_STEP]',myThid)
551 CALL TRACERS_CORRECTION_STEP(myTime, myIter, myThid)
552 CALL TIMER_STOP ('TS_CORRECTION_STEP [FORWARD_STEP]',myThid)
553
554 #ifdef ALLOW_GCHEM
555 C Add separate timestepping of chemical/biological/forcing
556 C of ptracers here in GCHEM_FORCING_SEP
557 #ifdef ALLOW_DEBUG
558 IF ( debugLevel .GE. debLevB )
559 & CALL DEBUG_CALL('GCHEM_FORCING_SEP',myThid)
560 #endif /* ALLOW_DEBUG */
561 IF ( useGCHEM ) THEN
562 CALL TIMER_START('GCHEM_FORCING_SEP [FORWARD_STEP]',myThid)
563 CALL GCHEM_FORCING_SEP( myTime,myIter,myThid )
564 CALL TIMER_STOP ('GCHEM_FORCING_SEP [FORWARD_STEP]',myThid)
565 ENDIF
566 #endif /* ALLOW_GCHEM */
567
568 C-- Do "blocking" sends and receives for tendency "overlap" terms
569 c CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
570 c CALL DO_GTERM_BLOCKING_EXCHANGES( myThid )
571 c CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
572
573 C-- Do "blocking" sends and receives for field "overlap" terms
574 CALL TIMER_START('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
575 CALL DO_FIELDS_BLOCKING_EXCHANGES( myThid )
576 CALL TIMER_STOP ('BLOCKING_EXCHANGES [FORWARD_STEP]',myThid)
577
578
579 C AMM
580 #ifdef ALLOW_GRIDALT
581 if (useGRIDALT) then
582 CALL GRIDALT_UPDATE(myThid)
583 endif
584 #endif
585 C AMM
586
587 C AMM
588 #ifdef ALLOW_FIZHI
589 if( useFIZHI) then
590 CALL TIMER_START('FIZHI [FORWARD_STEP]',mythid)
591 CALL STEP_FIZHI_CORR ( myTime, myIter, myThid )
592 CALL TIMER_STOP('FIZHI [FORWARD_STEP]',mythid)
593 endif
594 #endif
595 C AMM
596
597 #ifdef ALLOW_FLT
598 C-- Calculate float trajectories
599 IF (useFLT) THEN
600 CALL TIMER_START('FLOATS [FORWARD_STEP]',myThid)
601 CALL FLT_MAIN(myIter,myTime, myThid)
602 CALL TIMER_STOP ('FLOATS [FORWARD_STEP]',myThid)
603 ENDIF
604 #endif
605
606 C-- State-variables statistics (time-aver, diagnostics ...)
607 CALL TIMER_START('DO_STATEVARS_DIAGS [FORWARD_STEP]',myThid)
608 CALL DO_STATEVARS_DIAGS( myTime, myIter, myThid )
609 CALL TIMER_STOP ('DO_STATEVARS_DIAGS [FORWARD_STEP]',myThid)
610
611 #ifndef ALLOW_OFFLINE
612 #ifdef ALLOW_MONITOR
613 C-- Check status of solution (statistics, cfl, etc...)
614 CALL TIMER_START('MONITOR [FORWARD_STEP]',myThid)
615 CALL MONITOR( myIter, myTime, myThid )
616 CALL TIMER_STOP ('MONITOR [FORWARD_STEP]',myThid)
617 #endif /* ALLOW_MONITOR */
618 #endif
619
620 #ifdef ALLOW_COST
621 C-- compare model with data and compute cost function
622 C-- this is done after exchanges to allow interpolation
623 CALL TIMER_START('COST_TILE [FORWARD_STEP]',myThid)
624 CALL COST_TILE ( mytime, myiter, myThid )
625 CALL TIMER_STOP ('COST_TILE [FORWARD_STEP]',myThid)
626 #endif
627
628 C-- Do IO if needed.
629 #ifdef ALLOW_OFFLINE
630 CALL TIMER_START('OFFLINE_MODEL_IO [FORWARD_STEP]',myThid)
631 CALL OFFLINE_MODEL_IO( myTime, myIter, myThid )
632 CALL TIMER_STOP ('OFFLINE_MODEL_IO [FORWARD_STEP]',myThid)
633 #else
634 CALL TIMER_START('DO_THE_MODEL_IO [FORWARD_STEP]',myThid)
635 CALL DO_THE_MODEL_IO( myTime, myIter, myThid )
636 CALL TIMER_STOP ('DO_THE_MODEL_IO [FORWARD_STEP]',myThid)
637 #endif
638
639 C-- Save state for restarts
640 CALL TIMER_START('WRITE_CHECKPOINT [FORWARD_STEP]',myThid)
641 CALL PACKAGES_WRITE_PICKUP(
642 I .FALSE., myTime, myIter, myThid )
643 #ifndef ALLOW_OFFLINE
644 CALL WRITE_CHECKPOINT(
645 I .FALSE., myTime, myIter, myThid )
646 #endif
647 CALL TIMER_STOP ('WRITE_CHECKPOINT [FORWARD_STEP]',myThid)
648
649 #ifdef ALLOW_DEBUG
650 IF ( debugLevel .GE. debLevB )
651 & CALL DEBUG_LEAVE('FORWARD_STEP',myThid)
652 #endif
653
654 RETURN
655 END

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