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1 utke 1.6 C $Header: /u/gcmpack/MITgcm_contrib/heimbach/OpenAD/code_shallow_openad/the_model_main.F,v 1.5 2006/01/18 23:43:11 utke Exp $
2 heimbach 1.1 C $Name: $
3    
4     CBOI
5     C
6     C !TITLE: MITGCM KERNEL CODE SYNOPSIS
7     C !AUTHORS: mitgcm developers ( support@mitgcm.org )
8     C !AFFILIATION: Massachussetts Institute of Technology
9     C !DATE:
10     C !INTRODUCTION: Kernel dynamical routines
11     C This document summarises MITgcm code under the model/ subdirectory.
12     C The code under model/ ( src/ and inc/ ) contains most of
13     C the driver routines for the baseline forms of the kernel equations in the
14     C MITgcm algorithm. Numerical code for much of the baseline forms of
15     C these equations is also under the model/ directory. Other numerical code
16     C used for the kernel equations is contained in packages in the pkg/
17     C directory tree.
18     C Code for auxilliary equations and alternate dicretizations of the kernel
19     C equations and algorithm can also be found in the pkg/ directory tree.
20     C
21     C \subsection{Getting Help and Reporting Errors and Problems}
22     C If you have questions please e-mail support@mitgcm.org. We also welcome
23     C reports of errors and inconsistencies in the code or in the accompanying
24     C documentation. Please feel free to send these
25     C to support@mitgcm.org. For further information and to review
26     C problems reported to support@mitgcm.org please visit http://mitgcm.org.
27     C
28     C \subsection{MITgcm Kernel Code Calling Sequence}
29     C \bv
30     C
31     C Invocation from WRAPPER level...
32     C :
33     C :
34     C |
35     C |-THE_MODEL_MAIN :: Primary driver for the MITgcm algorithm
36     C | :: Called from WRAPPER level numerical
37     C | :: code innvocation routine. On entry
38     C | :: to THE_MODEL_MAIN separate thread and
39     C | :: separate processes will have been established.
40     C | :: Each thread and process will have a unique ID
41     C | :: but as yet it will not be associated with a
42     C | :: specific region in decomposed discrete space.
43     C |
44     C |-INITIALISE_FIXED :: Set fixed model arrays such as topography,
45     C | | :: grid, solver matrices etc..
46     C | |
47     C | |-INI_PARMS :: Routine to set kernel model parameters.
48     C | | :: By default kernel parameters are read from file
49     C | | :: "data" in directory in which code executes.
50     C | |
51     C | |-MON_INIT :: Initialises monitor pacakge ( see pkg/monitor )
52     C | |
53     C | |-INI_GRID :: Control grid array (vert. and hori.) initialisation.
54     C | | | :: Grid arrays are held and described in GRID.h.
55     C | | |
56     C | | |-INI_VERTICAL_GRID :: Initialise vertical grid arrays.
57     C | | |
58     C | | |-INI_CARTESIAN_GRID :: Cartesian horiz. grid initialisation
59     C | | | :: (calculate grid from kernel parameters).
60     C | | |
61     C | | |-INI_SPHERICAL_POLAR_GRID :: Spherical polar horiz. grid
62     C | | | :: initialisation (calculate grid from
63     C | | | :: kernel parameters).
64     C | | |
65     C | | |-INI_CURVILINEAR_GRID :: General orthogonal, structured horiz.
66     C | | :: grid initialisations. ( input from raw
67     C | | :: grid files, LONC.bin, DXF.bin etc... )
68     C | |
69     C | |-INI_DEPTHS :: Read (from "bathyFile") or set bathymetry/orgography.
70     C | |
71     C | |-INI_MASKS_ETC :: Derive horizontal and vertical cell fractions and
72     C | | :: land masking for solid-fluid boundaries.
73     C | |
74     C | |-INI_LINEAR_PHSURF :: Set ref. surface Bo_surf
75     C | |
76     C | |-INI_CORI :: Set coriolis term. zero, f-plane, beta-plane,
77     C | | :: sphere optins are coded.
78     C | |
79     C | |-PACAKGES_BOOT :: Start up the optional package environment.
80     C | | :: Runtime selection of active packages.
81     C | |
82     C | |-PACKAGES_READPARMS :: Call active package internal parameter load.
83     C | | |
84     C | | |-GMREDI_READPARMS :: GM Package. see pkg/gmredi
85     C | | |-KPP_READPARMS :: KPP Package. see pkg/kpp
86     C | | |-SHAP_FILT_READPARMS :: Shapiro filter package. see pkg/shap_filt
87     C | | |-OBCS_READPARMS :: Open bndy package. see pkg/obcs
88     C | | |-AIM_READPARMS :: Intermediate Atmos. pacakage. see pkg/aim
89     C | | |-COST_READPARMS :: Cost function package. see pkg/cost
90     C | | |-CTRL_INIT :: Control vector support package. see pkg/ctrl
91     C | | |-OPTIM_READPARMS :: Optimisation support package. see pkg/ctrl
92     C | | |-GRDCHK_READPARMS :: Gradient check package. see pkg/grdchk
93     C | | |-ECCO_READPARMS :: ECCO Support Package. see pkg/ecco
94     C | | |-PTRACERS_READPARMS :: multiple tracer package, see pkg/ptracers
95     C | | |-GCHEM_READPARMS :: tracer interface package, see pkg/gchem
96     C | |
97     C | |-PACKAGES_CHECK
98     C | | |
99     C | | |-KPP_CHECK :: KPP Package. pkg/kpp
100     C | | |-OBCS_CHECK :: Open bndy Pacakge. pkg/obcs
101     C | | |-GMREDI_CHECK :: GM Package. pkg/gmredi
102     C | |
103     C | |-PACKAGES_INIT_FIXED
104     C | | |-OBCS_INIT_FIXED :: Open bndy Package. see pkg/obcs
105     C | | |-FLT_INIT :: Floats Package. see pkg/flt
106     C | | |-GCHEM_INIT_FIXED :: tracer interface pachage, see pkg/gchem
107     C | |
108     C | |-ZONAL_FILT_INIT :: FFT filter Package. see pkg/zonal_filt
109     C | |
110     C | |-INI_CG2D :: 2d con. grad solver initialisation.
111     C | |
112     C | |-INI_CG3D :: 3d con. grad solver initialisation.
113     C | |
114     C | |-CONFIG_SUMMARY :: Provide synopsis of kernel setup.
115     C | :: Includes annotated table of kernel
116     C | :: parameter settings.
117     C |
118     C |-CTRL_UNPACK :: Control vector support package. see pkg/ctrl
119     C |
120     C |-ADTHE_MAIN_LOOP :: Derivative evaluating form of main time stepping loop
121     C ! :: Auotmatically gerenrated by TAMC/TAF.
122     C |
123     C |-CTRL_PACK :: Control vector support package. see pkg/ctrl
124     C |
125     C |-GRDCHK_MAIN :: Gradient check package. see pkg/grdchk
126     C |
127     C |-THE_MAIN_LOOP :: Main timestepping loop routine.
128     C | |
129     C | |-INITIALISE_VARIA :: Set the initial conditions for time evolving
130     C | | | :: variables
131     C | | |
132     C | | |-INI_LINEAR_PHISURF :: Set ref. surface Bo_surf
133     C | | |
134     C | | |-INI_CORI :: Set coriolis term. zero, f-plane, beta-plane,
135     C | | | :: sphere optins are coded.
136     C | | |
137     C | | |-INI_CG2D :: 2d con. grad solver initialisation.
138     C | | |-INI_CG3D :: 3d con. grad solver initialisation.
139     C | | |-INI_MIXING :: Initialise diapycnal diffusivity.
140     C | | |-INI_DYNVARS :: Initialise to zero all DYNVARS.h arrays (dynamical
141     C | | | :: fields).
142     C | | |
143     C | | |-INI_FIELDS :: Control initialising model fields to non-zero
144     C | | | |-INI_VEL :: Initialize 3D flow field.
145     C | | | |-INI_THETA :: Set model initial temperature field.
146     C | | | |-INI_SALT :: Set model initial salinity field.
147     C | | | |-INI_PSURF :: Set model initial free-surface height/pressure.
148     C | | | |-INI_PRESSURE :: Compute model initial hydrostatic pressure
149     C | | | |-READ_CHECKPOINT :: Read the checkpoint
150     C | | |
151     C | | |-THE_CORRECTION_STEP :: Step forward to next time step.
152     C | | | | :: Here applied to move restart conditions
153     C | | | | :: (saved in mid timestep) to correct level in
154     C | | | | :: time (only used for pre-c35).
155     C | | | |
156     C | | | |-CALC_GRAD_PHI_SURF :: Return DDx and DDy of surface pressure
157     C | | | |-CORRECTION_STEP :: Pressure correction to momentum
158     C | | | |-CYCLE_TRACER :: Move tracers forward in time.
159     C | | | |-OBCS_APPLY :: Open bndy package. see pkg/obcs
160     C | | | |-SHAP_FILT_APPLY :: Shapiro filter package. see pkg/shap_filt
161     C | | | |-ZONAL_FILT_APPLY :: FFT filter package. see pkg/zonal_filt
162     C | | | |-CONVECTIVE_ADJUSTMENT :: Control static instability mixing.
163     C | | | | |-FIND_RHO :: Find adjacent densities.
164     C | | | | |-CONVECT :: Mix static instability.
165     C | | | | |-TIMEAVE_CUMULATE :: Update convection statistics.
166     C | | | |
167     C | | | |-CALC_EXACT_ETA :: Change SSH to flow divergence.
168     C | | |
169     C | | |-CONVECTIVE_ADJUSTMENT_INI :: Control static instability mixing
170     C | | | | :: Extra time history interactions.
171     C | | | |
172     C | | | |-FIND_RHO :: Find adjacent densities.
173     C | | | |-CONVECT :: Mix static instability.
174     C | | | |-TIMEAVE_CUMULATE :: Update convection statistics.
175     C | | |
176     C | | |-PACKAGES_INIT_VARIABLES :: Does initialisation of time evolving
177     C | | | | :: package data.
178     C | | | |
179     C | | | |-GMREDI_INIT :: GM package. ( see pkg/gmredi )
180     C | | | |-KPP_INIT :: KPP package. ( see pkg/kpp )
181     C | | | |-KPP_OPEN_DIAGS
182     C | | | |-OBCS_INIT_VARIABLES :: Open bndy. package. ( see pkg/obcs )
183     C | | | |-PTRACERS_INIT :: multi. tracer package,(see pkg/ptracers)
184     C | | | |-GCHEM_INIT : : tracer interface pkg (see pkh/gchem)
185     C | | | |-AIM_INIT :: Interm. atmos package. ( see pkg/aim )
186     C | | | |-CTRL_MAP_INI :: Control vector package.( see pkg/ctrl )
187     C | | | |-COST_INIT :: Cost function package. ( see pkg/cost )
188     C | | | |-ECCO_INIT :: ECCO support package. ( see pkg/ecco )
189     C | | | |-INI_FORCING :: Set model initial forcing fields.
190     C | | | | :: Either set in-line or from file as shown.
191     C | | | |-READ_FLD_XY_RS(zonalWindFile)
192     C | | | |-READ_FLD_XY_RS(meridWindFile)
193     C | | | |-READ_FLD_XY_RS(surfQFile)
194     C | | | |-READ_FLD_XY_RS(EmPmRfile)
195     C | | | |-READ_FLD_XY_RS(thetaClimFile)
196     C | | | |-READ_FLD_XY_RS(saltClimFile)
197     C | | | |-READ_FLD_XY_RS(surfQswFile)
198     C | | |
199     C | | |-CALC_SURF_DR :: Calculate the new surface level thickness.
200     C | | |-UPDATE_SURF_DR :: Update the surface-level thickness fraction.
201     C | | |-UPDATE_CG2D :: Update 2d conjugate grad. for Free-Surf.
202     C | | |-STATE_SUMMARY :: Summarize model prognostic variables.
203     C | | |-TIMEAVE_STATVARS :: Time averaging package ( see pkg/timeave ).
204     C | |
205     C | |-WRITE_STATE :: Controlling routine for IO to dump model state.
206     C | | |-WRITE_REC_XYZ_RL :: Single file I/O
207     C | | |-WRITE_FLD_XYZ_RL :: Multi-file I/O
208     C | |
209     C | |-MONITOR :: Monitor state ( see pkg/monitor )
210     C | |-CTRL_MAP_FORCING :: Control vector support package. ( see pkg/ctrl )
211     C====|>|
212     C====|>| ****************************
213     C====|>| BEGIN MAIN TIMESTEPPING LOOP
214     C====|>| ****************************
215     C====|>|
216     C/\ | |-FORWARD_STEP :: Step forward a time-step ( AT LAST !!! )
217     C/\ | | |
218     C/\ | | |-DUMMY_IN_STEPPING :: autodiff package ( pkg/autoduff ).
219     C/\ | | |-CALC_EXACT_ETA :: Change SSH to flow divergence.
220     C/\ | | |-CALC_SURF_DR :: Calculate the new surface level thickness.
221     C/\ | | |-EXF_GETFORCING :: External forcing package. ( pkg/exf )
222     C/\ | | |-EXTERNAL_FIELDS_LOAD :: Control loading time dep. external data.
223     C/\ | | | | :: Simple interpolcation between end-points
224     C/\ | | | | :: for forcing datasets.
225     C/\ | | | |
226     C/\ | | | |-EXCH :: Sync forcing. in overlap regions.
227     C/\ | | |-SEAICE_MODEL :: Compute sea-ice terms. ( pkg/seaice )
228     C/\ | | |-FREEZE :: Limit surface temperature.
229     C/\ | | |-GCHEM_FIELD_LOAD :: load tracer forcing fields (pkg/gchem)
230     C/\ | | |
231     C/\ | | |-THERMODYNAMICS :: theta, salt + tracer equations driver.
232     C/\ | | | |
233     C/\ | | | |-INTEGRATE_FOR_W :: Integrate for vertical velocity.
234     C/\ | | | |-OBCS_APPLY_W :: Open bndy. package ( see pkg/obcs ).
235     C/\ | | | |-FIND_RHO :: Calculates [rho(S,T,z)-RhoConst] of a slice
236     C/\ | | | |-GRAD_SIGMA :: Calculate isoneutral gradients
237     C/\ | | | |-CALC_IVDC :: Set Implicit Vertical Diffusivity for Convection
238     C/\ | | | |
239     C/\ | | | |-OBCS_CALC :: Open bndy. package ( see pkg/obcs ).
240     C/\ | | | |-EXTERNAL_FORCING_SURF:: Accumulates appropriately dimensioned
241     C/\ | | | | | :: forcing terms.
242     C/\ | | | | |-PTRACERS_FORCING_SURF :: Tracer package ( see pkg/ptracers ).
243     C/\ | | | |
244     C/\ | | | |-GMREDI_CALC_TENSOR :: GM package ( see pkg/gmredi ).
245     C/\ | | | |-GMREDI_CALC_TENSOR_DUMMY :: GM package ( see pkg/gmredi ).
246     C/\ | | | |-KPP_CALC :: KPP package ( see pkg/kpp ).
247     C/\ | | | |-KPP_CALC_DUMMY :: KPP package ( see pkg/kpp ).
248     C/\ | | | |-AIM_DO_ATMOS_PHYSICS :: Intermed. atmos package ( see pkg/aim ).
249     C/\ | | | |-GAD_ADVECTION :: Generalised advection driver (multi-dim
250     C/\ | | | | advection case) (see pkg/gad).
251     C/\ | | | |-CALC_COMMON_FACTORS :: Calculate common data (such as volume flux)
252     C/\ | | | |-CALC_DIFFUSIVITY :: Calculate net vertical diffusivity
253     C/\ | | | | |
254     C/\ | | | | |-GMREDI_CALC_DIFF :: GM package ( see pkg/gmredi ).
255     C/\ | | | | |-KPP_CALC_DIFF :: KPP package ( see pkg/kpp ).
256     C/\ | | | |
257     C/\ | | | |-CALC_GT :: Calculate the temperature tendency terms
258     C/\ | | | | |
259     C/\ | | | | |-GAD_CALC_RHS :: Generalised advection package
260     C/\ | | | | | | :: ( see pkg/gad )
261     C/\ | | | | | |-KPP_TRANSPORT_T :: KPP non-local transport ( see pkg/kpp ).
262     C/\ | | | | |
263     C/\ | | | | |-EXTERNAL_FORCING_T :: Problem specific forcing for temperature.
264     C/\ | | | | |-ADAMS_BASHFORTH2 :: Extrapolate tendencies forward in time.
265     C/\ | | | | |-FREESURF_RESCALE_G :: Re-scale Gt for free-surface height.
266     C/\ | | | |
267     C/\ | | | |-TIMESTEP_TRACER :: Step tracer field forward in time
268     C/\ | | | |
269     C/\ | | | |-CALC_GS :: Calculate the salinity tendency terms
270     C/\ | | | | |
271     C/\ | | | | |-GAD_CALC_RHS :: Generalised advection package
272     C/\ | | | | | | :: ( see pkg/gad )
273     C/\ | | | | | |-KPP_TRANSPORT_S :: KPP non-local transport ( see pkg/kpp ).
274     C/\ | | | | |
275     C/\ | | | | |-EXTERNAL_FORCING_S :: Problem specific forcing for salt.
276     C/\ | | | | |-ADAMS_BASHFORTH2 :: Extrapolate tendencies forward in time.
277     C/\ | | | | |-FREESURF_RESCALE_G :: Re-scale Gs for free-surface height.
278     C/\ | | | |
279     C/\ | | | |-TIMESTEP_TRACER :: Step tracer field forward in time
280     C/\ | | | |
281     C/\ | | | |-TIMESTEP_TRACER :: Step tracer field forward in time
282     C/\ | | | |
283     C/\ | | | |-PTRACERS_INTEGRATE :: Integrate other tracer(s) ( see pkg/ptracers ).
284     C/\ | | | | |
285     C/\ | | | | |-GAD_CALC_RHS :: Generalised advection package
286     C/\ | | | | | | :: ( see pkg/gad )
287     C/\ | | | | | |-KPP_TRANSPORT_PTR:: KPP non-local transport ( see pkg/kpp ).
288     C/\ | | | | |
289     C/\ | | | | |-PTRACERS_FORCING :: Problem specific forcing for tracer.
290     C/\ | | | | |-GCHEM_FORCING_INT :: tracer forcing for gchem pkg (if all
291     C/\ | | | | | tendancy terms calcualted together)
292     C/\ | | | | |-ADAMS_BASHFORTH2 :: Extrapolate tendencies forward in time.
293     C/\ | | | | |-FREESURF_RESCALE_G :: Re-scale Gs for free-surface height.
294     C/\ | | | | |-TIMESTEP_TRACER :: Step tracer field forward in time
295     C/\ | | | |
296     C/\ | | | |-OBCS_APPLY_TS :: Open bndy. package (see pkg/obcs ).
297     C/\ | | | |
298     C/\ | | | |-IMPLDIFF :: Solve vertical implicit diffusion equation.
299     C/\ | | | |-OBCS_APPLY_TS :: Open bndy. package (see pkg/obcs ).
300     C/\ | | | |
301     C/\ | | | |-AIM_AIM2DYN_EXCHANGES :: Inetermed. atmos (see pkg/aim).
302     C/\ | | | |-EXCH :: Update overlaps
303     C/\ | | |
304     C/\ | | |-DYNAMICS :: Momentum equations driver.
305     C/\ | | | |
306     C/\ | | | |-CALC_GRAD_PHI_SURF :: Calculate the gradient of the surface
307     C/\ | | | | Potential anomaly.
308     C/\ | | | |-CALC_VISCOSITY :: Calculate net vertical viscosity
309     C/\ | | | | |-KPP_CALC_VISC :: KPP package ( see pkg/kpp ).
310     C/\ | | | |
311     C/\ | | | |-CALC_PHI_HYD :: Integrate the hydrostatic relation.
312     C/\ | | | |-MOM_FLUXFORM :: Flux form mom eqn. package ( see
313     C/\ | | | | pkg/mom_fluxform ).
314     C/\ | | | |-MOM_VECINV :: Vector invariant form mom eqn. package ( see
315     C/\ | | | | pkg/mom_vecinv ).
316     C/\ | | | |-TIMESTEP :: Step momentum fields forward in time
317     C/\ | | | |-OBCS_APPLY_UV :: Open bndy. package (see pkg/obcs ).
318     C/\ | | | |
319     C/\ | | | |-IMPLDIFF :: Solve vertical implicit diffusion equation.
320     C/\ | | | |-OBCS_APPLY_UV :: Open bndy. package (see pkg/obcs ).
321     C/\ | | | |
322     C/\ | | | |-TIMEAVE_CUMUL_1T :: Time averaging package ( see pkg/timeave ).
323     C/\ | | | |-TIMEAVE_CUMUATE :: Time averaging package ( see pkg/timeave ).
324     C/\ | | | |-DEBUG_STATS_RL :: Quick debug package ( see pkg/debug ).
325     C/\ | | |
326     C/\ | | |-CALC_GW :: vert. momentum tendency terms ( NH, QH only ).
327     C/\ | | |
328     C/\ | | |-UPDATE_SURF_DR :: Update the surface-level thickness fraction.
329     C/\ | | |
330     C/\ | | |-UPDATE_CG2D :: Update 2d conjugate grad. for Free-Surf.
331     C/\ | | |
332     C/\ | | |-SOLVE_FOR_PRESSURE :: Find surface pressure.
333     C/\ | | | |-CALC_DIV_GHAT :: Form the RHS of the surface pressure eqn.
334     C/\ | | | |-CG2D :: Two-dim pre-con. conjugate-gradient.
335     C/\ | | | |-CG3D :: Three-dim pre-con. conjugate-gradient solver.
336     C/\ | | |
337     C/\ | | |-THE_CORRECTION_STEP :: Step forward to next time step.
338     C/\ | | | |
339     C/\ | | | |-CALC_GRAD_PHI_SURF :: Return DDx and DDy of surface pressure
340     C/\ | | | |-CORRECTION_STEP :: Pressure correction to momentum
341     C/\ | | | |-CYCLE_TRACER :: Move tracers forward in time.
342     C/\ | | | |-OBCS_APPLY :: Open bndy package. see pkg/obcs
343     C/\ | | | |-SHAP_FILT_APPLY :: Shapiro filter package. see pkg/shap_filt
344     C/\ | | | |-ZONAL_FILT_APPLY :: FFT filter package. see pkg/zonal_filt
345     C/\ | | | |-CONVECTIVE_ADJUSTMENT :: Control static instability mixing.
346     C/\ | | | | |-FIND_RHO :: Find adjacent densities.
347     C/\ | | | | |-CONVECT :: Mix static instability.
348     C/\ | | | | |-TIMEAVE_CUMULATE :: Update convection statistics.
349     C/\ | | | |
350     C/\ | | | |-CALC_EXACT_ETA :: Change SSH to flow divergence.
351     C/\ | | |
352     C/\ | | |-DO_FIELDS_BLOCKING_EXCHANGES :: Sync up overlap regions.
353     C/\ | | | |-EXCH
354     C/\ | | |
355     C/\ | | |-GCHEM_FORCING_SEP :: tracer forcing for gchem pkg (if
356     C/\ | | | tracer dependent tendencies calculated
357     C/\ | | | separatly)
358     C/\ | | |
359     C/\ | | |-FLT_MAIN :: Float package ( pkg/flt ).
360     C/\ | | |
361     C/\ | | |-MONITOR :: Monitor package ( pkg/monitor ).
362     C/\ | | |
363     C/\ | | |-DO_THE_MODEL_IO :: Standard diagnostic I/O.
364     C/\ | | | |-WRITE_STATE :: Core state I/O
365     C/\ | | | |-TIMEAVE_STATV_WRITE :: Time averages. see pkg/timeave
366     C/\ | | | |-AIM_WRITE_DIAGS :: Intermed. atmos diags. see pkg/aim
367     C/\ | | | |-GMREDI_DIAGS :: GM diags. see pkg/gmredi
368     C/\ | | | |-KPP_DO_DIAGS :: KPP diags. see pkg/kpp
369     C/\ | | | |-SBO_CALC :: SBO diags. see pkg/sbo
370     C/\ | | | |-SBO_DIAGS :: SBO diags. see pkg/sbo
371     C/\ | | | |-SEAICE_DO_DIAGS :: SEAICE diags. see pkg/seaice
372     C/\ | | | |-GCHEM_DIAGS :: gchem diags. see pkg/gchem
373     C/\ | | |
374     C/\ | | |-WRITE_CHECKPOINT :: Do I/O for restart files.
375     C/\ | |
376     C/\ | |-COST_TILE :: Cost function package. ( see pkg/cost )
377     C<===|=|
378     C<===|=| **************************
379     C<===|=| END MAIN TIMESTEPPING LOOP
380     C<===|=| **************************
381     C<===|=|
382     C | |-COST_FINAL :: Cost function package. ( see pkg/cost )
383     C |
384     C |-WRITE_CHECKPOINT :: Final state storage, for restart.
385     C |
386     C |-TIMER_PRINTALL :: Computational timing summary
387     C |
388     C |-COMM_STATS :: Summarise inter-proc and inter-thread communication
389     C :: events.
390     C \ev
391     C
392     C
393     CEOI
394    
395    
396     #include "AD_CONFIG.h"
397     #include "PACKAGES_CONFIG.h"
398     #include "CPP_OPTIONS.h"
399    
400     CBOP
401    
402     C !ROUTINE: THE_MODEL_MAIN
403    
404     C !INTERFACE:
405     SUBROUTINE THE_MODEL_MAIN(myThid)
406     IMPLICIT NONE
407    
408     C !DESCRIPTION: \bv
409     C *==========================================================*
410     C | SUBROUTINE THE_MODEL_MAIN
411     C | o Master controlling routine for model using the MITgcm
412     C | UV parallel wrapper.
413     C *==========================================================*
414     C | THE_MODEL_MAIN is invoked by the MITgcm UV parallel
415     C | wrapper with a single integer argument "myThid". This
416     C | variable identifies the thread number of an instance of
417     C | THE_MODEL_MAIN. Each instance of THE_MODEL_MAIN works
418     C | on a particular region of the models domain and
419     C | synchronises with other instances as necessary. The
420     C | routine has to "understand" the MITgcm parallel
421     C | environment and the numerical algorithm. Editing this
422     C | routine is best done with some knowledge of both aspects.
423     C | Notes
424     C | =====
425     C | C*P* comments indicating place holders for which code is
426     C | presently being developed.
427     C *==========================================================*
428     C \ev
429    
430     C !CALLING SEQUENCE:
431     C THE_MODEL_MAIN()
432     C |
433     C |
434     C |--INITIALISE_FIXED
435     C | o Set model configuration (fixed arrays)
436     C | Topography, hydrography, timestep, grid, etc..
437     C |
438     C |--CTRL_UNPACK o Derivative mode. Unpack control vector.
439     C |
440     C |--ADTHE_MAIN_LOOP o Main timestepping loop for combined
441     C | prognostic and reverse mode integration.
442     C |
443     C |--CTRL_PACK o Derivative mode. Unpack control vector.
444     C |
445     C |--GRDCHK_MAIN o Gradient check control routine.
446     C |
447     C |--THE_MAIN_LOOP o Main timestepping loop for pure prognostic
448     C | integration.
449     C |
450     C |--WRITE_CHECKPOINT o Write retsart information.
451     C |
452     C |--TIMER_PRINTALL o Print out timing statistics.
453     C |
454     C |--COMM_STATS o Print out communication statistics.
455    
456     C !USES:
457     C == Global variables ===
458    
459     use active_module
460    
461     use OpenAD_rev
462     use OpenAD_tape
463     use OpenAD_checkpoints
464    
465    
466     #include "SIZE.h"
467     #include "EEPARAMS.h"
468     #include "PARAMS.h"
469     #include "DYNVARS.h"
470 utke 1.4 #include "ctrl.h"
471     #include "cost.h"
472 heimbach 1.1
473     #ifdef ALLOW_AUTODIFF_TAMC
474     # include "tamc.h"
475     #endif
476     #ifdef ALLOW_CTRL
477     # include "optim.h"
478     #endif
479    
480     C !INPUT/OUTPUT PARAMETERS:
481     C == Routine arguments ==
482     C myThid - Thread number for this instance of the routine.
483     INTEGER myThid
484    
485     C !LOCAL VARIABLES:
486     C == Local variables ==
487     C Note: Under the multi-threaded model myCurrentIter and
488     C myCurrentTime are local variables passed around as routine
489     C arguments. Although this is fiddly it saves the need to
490     C impose additional synchronisation points when they are
491     C updated.
492     C myCurrentTime - Time counter for this thread
493     C myCurrentIter - Iteration counter for this thread
494     INTEGER myCurrentIter
495     _RL myCurrentTime
496     logical exst
497     logical lastdiva
498     CEOP
499     c-- set default:
500     lastdiva = .TRUE.
501    
502     c set the execution mode
503     our_rev_mode%arg_store=.FALSE.
504     our_rev_mode%arg_restore=.FALSE.
505     our_rev_mode%res_store=.FALSE.
506     our_rev_mode%res_restore=.FALSE.
507     our_rev_mode%plain=.TRUE.
508     our_rev_mode%tape=.FALSE.
509     our_rev_mode%adjoint=.FALSE.
510 utke 1.2 our_rev_mode%switchedToCheckpoint=.FALSE.
511 heimbach 1.1 c initialize the tape
512     call tape_init()
513     c initialize the checkpoint areas
514     call cp_init()
515    
516     #ifdef ALLOW_DEBUG
517     IF (debugMode) CALL DEBUG_ENTER('THE_MODEL_MAIN',myThid)
518     #endif
519    
520     C-- This timer encompasses the whole code
521     CALL TIMER_START('ALL [THE_MODEL_MAIN]',myThid)
522    
523     #ifdef ALLOW_DEBUG
524     IF (debugMode) CALL DEBUG_CALL('INITIALISE_FIXED',myThid)
525     #endif
526    
527     C-- Set model configuration (fixed arrays)
528     CALL TIMER_START('INITIALISE_FIXED [THE_MODEL_MAIN]',myThid)
529     CALL INITIALISE_FIXED( myThid )
530     CALL TIMER_STOP ('INITIALISE_FIXED [THE_MODEL_MAIN]',myThid)
531    
532     myCurrentTime = startTime
533     myCurrentIter = nIter0
534    
535     #if ( defined (ALLOW_ADMTLM) )
536     c
537     STOP 'should never get here; ADMTLM_DSVD calls ADMTLM_DRIVER'
538     c
539     #elif ( defined (ALLOW_AUTODIFF))
540    
541     # ifndef EXCLUDE_CTRL_PACK
542     _BEGIN_MASTER( mythid )
543     IF (myProcId .eq. 0) THEN
544     inquire( file='costfinal', exist=exst )
545     IF ( .NOT. exst ) THEN
546     IF ( optimcycle.NE.0 ) THEN
547     CALL TIMER_START('CTRL_UNPACK [THE_MODEL_MAIN]',mythid)
548     CALL CTRL_UNPACK( .TRUE. , mythid )
549     CALL TIMER_STOP ('CTRL_UNPACK [THE_MODEL_MAIN]',mythid)
550     ENDIF
551     ENDIF
552     ENDIF
553     _END_MASTER( mythid )
554     _BARRIER
555     # endif /* EXCLUDE_CTRL_PACK */
556    
557     # ifdef ALLOW_COST
558     CALL COST_DEPENDENT_INIT ( mythid )
559     _BARRIER
560     # endif
561    
562     # if ( defined (ALLOW_TANGENTLINEAR_RUN) )
563     c
564     CALL TIMER_START('G_THE_MAIN_LOOP [TANGENT RUN]',mythid)
565     CALL G_THE_MAIN_LOOP ( myCurrentTime, myCurrentIter, myThid )
566     CALL TIMER_STOP ('G_THE_MAIN_LOOP [TANGENT RUN]',mythid)
567     c
568     # elif ( defined (ALLOW_ADJOINT_RUN) || \
569     defined (ALLOW_ECCO_OPTIMIZATION) )
570     c
571     # ifdef ALLOW_DIVIDED_ADJOINT
572     c-- The following assumes the TAF option '-pure'
573     inquire( file='costfinal', exist=exst )
574     IF ( .NOT. exst) THEN
575     CALL TIMER_START('MDTHE_MAIN_LOOP [MD RUN]', mythid)
576     CALL MDTHE_MAIN_LOOP ( myCurrentTime, myCurrentIter, mythid )
577     CALL TIMER_STOP ('MDTHE_MAIN_LOOP [MD RUN]', mythid)
578     CALL COST_FINAL_STORE ( mythid, lastdiva )
579     ELSE
580     CALL TIMER_START('ADTHE_MAIN_LOOP [ADJOINT RUN]', mythid)
581     CALL ADTHE_MAIN_LOOP ( myCurrentTime, myCurrentIter, mythid )
582     CALL TIMER_STOP ('ADTHE_MAIN_LOOP [ADJOINT RUN]', mythid)
583     CALL COST_FINAL_RESTORE ( mythid, lastdiva )
584     ENDIF
585     c--
586     # else /* ALLOW_DIVIDED_ADJOINT undef */
587     CALL TIMER_START('ADTHE_MAIN_LOOP [ADJOINT RUN]', mythid)
588     CALL ADTHE_MAIN_LOOP ( myCurrentTime, myCurrentIter, mythid )
589     cph CALL ADTHE_MAIN_LOOP ( mythid )
590     CALL TIMER_STOP ('ADTHE_MAIN_LOOP [ADJOINT RUN]', mythid)
591     # endif /* ALLOW_DIVIDED_ADJOINT */
592     c
593     # else /* forward run only within AD setting */
594    
595     #ifdef ALLOW_DEBUG
596     IF (debugMode) CALL DEBUG_CALL('THE_MAIN_LOOP',myThid)
597     #endif
598     C-- Call time stepping loop of full model
599     CALL TIMER_START('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid)
600 utke 1.2 our_rev_mode%plain=.FALSE.
601     our_rev_mode%tape=.TRUE.
602 utke 1.5 CALL OpenAD_THE_MAIN_LOOP( myCurrentTime, myCurrentIter, myThid )
603 heimbach 1.1 our_rev_mode%arg_store=.FALSE.
604     our_rev_mode%arg_restore=.FALSE.
605     our_rev_mode%plain=.FALSE.
606 utke 1.2 our_rev_mode%tape=.FALSE.
607 heimbach 1.1 our_rev_mode%adjoint=.TRUE.
608 utke 1.3 fc%d=1.0
609 utke 1.5 CALL OpenAD_THE_MAIN_LOOP( myCurrentTime, myCurrentIter, myThid )
610 utke 1.6 do i1=1-olx,snx+olx
611     do i2=1-oly,sny+oly
612     do i3=1,nr
613     do i4=1,nsx
614     do i5=1,nsy
615     write (*,*) 'JU: (',
616     +i1,',',i2,',',i3,',',i4,',',i5,') salt/theta ',
617     +xx_salt(i1,i2,i3,i4,i5)%d,'/',xx_theta(i1,i2,i3,i4,i5)%d
618     end do
619     end do
620     end do
621     end do
622     end do
623 utke 1.2 our_rev_mode%plain=.TRUE.
624     our_rev_mode%tape=.FALSE.
625 utke 1.6 our_rev_mode%adjoint=.FALSE.
626 heimbach 1.1 CALL TIMER_STOP ('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid)
627    
628     # endif
629    
630     # ifndef EXCLUDE_CTRL_PACK
631     _BEGIN_MASTER( mythid )
632     IF ( myProcId .eq. 0 .AND. lastdiva ) THEN
633     CALL TIMER_START('CTRL_PACK [THE_MODEL_MAIN]',mythid)
634     call CTRL_PACK( .FALSE. , mythid )
635     CALL TIMER_STOP ('CTRL_PACK [THE_MODEL_MAIN]',mythid)
636     IF ( optimcycle.EQ.0 .AND. mycurrentiter.EQ.niter0 ) THEN
637     CALL TIMER_START('CTRL_PACK [THE_MODEL_MAIN]',mythid)
638     CALL CTRL_PACK( .TRUE. , mythid )
639     CALL TIMER_STOP ('CTRL_PACK [THE_MODEL_MAIN]',mythid)
640     ENDIF
641     ENDIF
642     _END_MASTER( mythid )
643     _BARRIER
644     # endif /* EXCLUDE_CTRL_PACK */
645    
646    
647     # ifdef ALLOW_GRDCHK
648     IF ( useGrdchk .AND. lastdiva ) THEN
649     CALL TIMER_START('GRDCHK_MAIN [THE_MODEL_MAIN]',mythid)
650     CALL GRDCHK_MAIN( mythid )
651     CALL TIMER_STOP ('GRDCHK_MAIN [THE_MODEL_MAIN]',mythid)
652     _BARRIER
653     ENDIF
654     # endif
655    
656     #else /* ALL AD-related undef */
657    
658     #ifdef ALLOW_DEBUG
659     IF (debugMode) CALL DEBUG_CALL('THE_MAIN_LOOP',myThid)
660     #endif
661     C-- Call time stepping loop of full model
662     CALL TIMER_START('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid)
663     CALL THE_MAIN_LOOP( myCurrentTime, myCurrentIter, myThid )
664     CALL TIMER_STOP ('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid)
665    
666     #endif /* ALLOW_TANGENTLINEAR_RUN ALLOW_ADJOINT_RUN ALLOW_ADMTLM */
667    
668     C-- Final checkpoint (in case the in-loop checkpoint was missed)
669     CALL TIMER_START('WRITE_CHECKPOINT [THE_MODEL_MAIN]',myThid)
670     CALL PACKAGES_WRITE_PICKUP(
671     I .TRUE., myCurrentTime, myCurrentIter, myThid )
672     CALL WRITE_CHECKPOINT(
673     I .TRUE., myCurrentTime, myCurrentIter, myThid )
674     CALL TIMER_STOP ('WRITE_CHECKPOINT [THE_MODEL_MAIN]',myThid)
675    
676     CALL TIMER_STOP ('ALL [THE_MODEL_MAIN]',myThid)
677    
678     #ifdef ALLOW_DIAGNOSTICS
679     IF (useDiagnostics) THEN
680     C Close all diagnostics output files
681     CALL DIAGSTATS_CLOSE_IO( myThid )
682     ENDIF
683     #endif
684    
685     #ifdef ALLOW_MNC
686     IF (useMNC) THEN
687     C Close all open NetCDF files
688     _BEGIN_MASTER( mythid )
689     CALL MNC_FILE_CLOSE_ALL( myThid )
690     _END_MASTER( mythid )
691     ENDIF
692     #endif
693    
694     C-- Write timer statistics
695     IF ( myThid .EQ. 1 ) THEN
696     CALL TIMER_PRINTALL( myThid )
697     CALL COMM_STATS
698     ENDIF
699    
700     #ifdef ALLOW_DEBUG
701     IF (debugMode) CALL DEBUG_LEAVE('THE_MODEL_MAIN',myThid)
702     #endif
703    
704     RETURN
705     END

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