1 |
C $Header$ |
C $Header$ |
2 |
|
|
3 |
#include "CPP_EEOPTIONS.h" |
#include "CPP_OPTIONS.h" |
4 |
|
|
5 |
SUBROUTINE THE_MODEL_MAIN(myThid) |
SUBROUTINE THE_MODEL_MAIN(myThid) |
6 |
C /==========================================================\ |
C /==========================================================\ |
22 |
C | C*P* comments indicating place holders for which code is | |
C | C*P* comments indicating place holders for which code is | |
23 |
C | presently being developed. | |
C | presently being developed. | |
24 |
C \==========================================================/ |
C \==========================================================/ |
25 |
|
IMPLICIT NONE |
26 |
|
C |
27 |
|
C Call Tree |
28 |
|
C ========= |
29 |
|
C |
30 |
|
C main ( eesupp ) |
31 |
|
C | |
32 |
|
C . |
33 |
|
C . |
34 |
|
C . Generic environment initialisation ( see eesupp/src and |
35 |
|
C . eesupp/inc ) |
36 |
|
C . multiple threads and/or processes are created in here |
37 |
|
C . |
38 |
|
C . |
39 |
|
C . |
40 |
|
C | |
41 |
|
C |-THE_MODEL_MAIN - Begin specific model. One instance |
42 |
|
C | | of this codes exists for each thread |
43 |
|
C | | and/or instance. Each instance manages |
44 |
|
C | | a specifc set of tiles. |
45 |
|
C | | |
46 |
|
C | |--INITIALISE |
47 |
|
C | | o Set initial conditions and model configuration |
48 |
|
C | | Topography, hydrography, timestep, grid, etc.. |
49 |
|
C | | |
50 |
|
C ==> | | ** Time stepping loop starts here ** |
51 |
|
C | | | |
52 |
|
C /|\ | | |
53 |
|
C | | |--LOAD_EXTERNAL_DATA |
54 |
|
C /|\ | | o Load and/or set time dependent forcing fields |
55 |
|
C | | | |
56 |
|
C /|\ | |--DYNAMICS |
57 |
|
C | | | o Evaluate "forward" terms |
58 |
|
C /|\ | | |
59 |
|
C | | |--DO_THE_MODEL_IO |
60 |
|
C /|\ | | o Write model state |
61 |
|
C | | | |
62 |
|
C /|\ | |--SOLVE_FOR_PRESSURE |
63 |
|
C | | | o Find pressure field to keep flow non-divergent |
64 |
|
C /|\ | | |
65 |
|
C | | |--DO_GTERM_BLOCKING_EXCHANGES |
66 |
|
C /|\ | | o Update overlap regions |
67 |
|
C | | | |
68 |
|
C /|\ | |--WRITE_CHECKPOINT |
69 |
|
C | | | o Write restart file(s) |
70 |
|
C /|\ | | |
71 |
|
C | | | |
72 |
|
C |<== | | ** Time stepping loop finishes here ** |
73 |
|
C | | |
74 |
|
C | |--WRITE_STATE |
75 |
|
C | |--WRITE_CHECKPOINT |
76 |
|
C | |
77 |
|
C . |
78 |
|
C . |
79 |
|
C . Generic environment termination ( see eesupp/src and |
80 |
|
C . eesupp/inc ) |
81 |
|
C . |
82 |
|
C . |
83 |
|
|
84 |
C == Global variables === |
C == Global variables === |
85 |
#include "SIZE.h" |
#include "SIZE.h" |
86 |
#include "EEPARAMS.h" |
#include "EEPARAMS.h" |
87 |
#include "PARAMS.h" |
#include "PARAMS.h" |
|
#include "CG2D.h" |
|
88 |
#include "DYNVARS.h" |
#include "DYNVARS.h" |
89 |
|
#include "CG2D.h" |
90 |
|
#ifdef ALLOW_NONHYDROSTATIC |
91 |
|
#include "CG3D.h" |
92 |
|
#endif |
93 |
|
|
94 |
C == Routine arguments == |
C == Routine arguments == |
95 |
C myThid - Thread number for this instance of the routine. |
C myThid - Thread number for this instance of the routine. |
96 |
INTEGER myThid |
INTEGER myThid |
97 |
|
|
98 |
C == Local variables == |
C == Local variables == |
99 |
C Note: Under the multi-threaded model myCurrentIter and myCurrentTime |
C Note: Under the multi-threaded model myCurrentIter and |
100 |
C are local variables passed around as routine arguments. Although |
C myCurrentTime are local variables passed around as routine |
101 |
C this is fiddly it saves the need to impose additional synchronisation |
C arguments. Although this is fiddly it saves the need to |
102 |
C points when they are updated. |
C impose additional synchronisation points when they are |
103 |
|
C updated. |
104 |
C myCurrentIter - Iteration counter for this thread |
C myCurrentIter - Iteration counter for this thread |
105 |
C myCurrentTime - Time counter for this thread |
C myCurrentTime - Time counter for this thread |
106 |
C I - Loop counter |
C I - Loop counter |
107 |
INTEGER I, myCurrentIter |
INTEGER I, myCurrentIter |
108 |
REAL myCurrentTime |
_RL myCurrentTime |
109 |
|
|
110 |
|
C-- This timer encompasses the whole code |
111 |
|
CALL TIMER_START('ALL',myThid) |
112 |
|
|
113 |
|
CALL TIMER_START('SPIN-UP',myThid) |
114 |
|
|
115 |
C-- Set model initial conditions |
C-- Set model initial conditions |
116 |
|
CALL TIMER_START('INITIALISE [SPIN-UP]',myThid) |
117 |
CALL INITIALISE( myThid ) |
CALL INITIALISE( myThid ) |
118 |
myCurrentTime = startTime |
myCurrentTime = startTime |
119 |
myCurrentIter = nIter0 |
myCurrentIter = nIter0 |
120 |
|
CALL TIMER_STOP ('INITIALISE [SPIN-UP]',myThid) |
121 |
|
|
122 |
|
C-- Dump for start state |
123 |
|
CALL TIMER_START('I/O (WRITE) [SPIN-UP]',myThid) |
124 |
|
CALL WRITE_STATE( .TRUE., myCurrentTime, myCurrentIter, myThid ) |
125 |
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-UP]',myThid) |
126 |
|
|
127 |
|
CALL TIMER_STOP ('SPIN-UP',myThid) |
128 |
|
|
129 |
C-- Begin time stepping loop |
C-- Begin time stepping loop |
130 |
|
CALL TIMER_START('MAIN LOOP',myThid) |
131 |
DO I=1, nTimeSteps |
DO I=1, nTimeSteps |
132 |
|
|
133 |
C-- Do IO if needed. |
C-- Load forcing/external data fields |
134 |
CALL DO_THE_MODEL_IO( myCurrentIter, myThid ) |
CALL TIMER_START('I/O (READ) [MAIN LOOP]',myThid) |
135 |
|
CALL LOAD_EXTERNAL_FIELDS( myCurrentTime, myCurrentIter, myThid ) |
136 |
C-- Load offline tracer fields |
CALL TIMER_STOP ('I/O (READ) [MAIN LOOP]',myThid) |
137 |
IF ( MOD(myCurrentIter,numStepsPerPickup) .EQ. 1 ) THEN |
|
138 |
C I/O |
#ifdef INCLUDE_SHAPIRO_FILTER_CODE |
139 |
C o Writes to arrays are performed by their own thread (to ensure |
C-- Step forward all tiles, filter and exchange. |
140 |
C physical memory allocation will pair with thread). |
CALL TIMER_START('SHAP_FILT [MAIN LOOP]',myThid) |
141 |
C o Thread 1 reads into a buffer. |
CALL SHAP_FILT( myCurrentTime, myCurrentIter, myThid ) |
142 |
C CALL LOAD_OFFLINE_FIELDS( myCurrentTime, myCurrentIter, myThid ) |
CALL TIMER_STOP ('SHAP_FILT [MAIN LOOP]',myThid) |
143 |
|
#endif |
144 |
|
|
145 |
|
#ifdef ALLOW_OBCS |
146 |
|
C-- Set Open Boundaries Values |
147 |
|
IF (openBoundaries) THEN |
148 |
|
CALL TIMER_START('OBCS [MAIN LOOP]',myThid) |
149 |
|
CALL SET_OBCS( myCurrentTime, myThid ) |
150 |
|
CALL TIMER_STOP ('OBCS [MAIN LOOP]',myThid) |
151 |
ENDIF |
ENDIF |
152 |
|
#endif |
153 |
|
|
154 |
C-- Step forward fields and calculate time tendency terms |
C-- Step forward fields and calculate time tendency terms |
155 |
CALL DYNAMICS( myThid ) |
CALL TIMER_START('DYNAMICS [MAIN LOOP]',myThid) |
156 |
|
CALL DYNAMICS( myCurrentTime, myCurrentIter, myThid ) |
157 |
|
CALL TIMER_STOP ('DYNAMICS [MAIN LOOP]',myThid) |
158 |
|
|
159 |
|
#ifdef ALLOW_NONHYDROSTATIC |
160 |
|
C-- Step forward W field in N-H algorithm |
161 |
|
IF ( nonHydrostatic ) THEN |
162 |
|
CALL TIMER_START('CALC_GW [MAIN LOOP]',myThid) |
163 |
|
CALL CALC_GW( myThid) |
164 |
|
CALL TIMER_STOP ('CALC_GW [MAIN LOOP]',myThid) |
165 |
|
ENDIF |
166 |
|
#endif |
167 |
|
|
168 |
|
C-- Do time averages |
169 |
|
#ifdef INCLUDE_DIAGNOSTICS_INTERFACE_CODE |
170 |
|
CALL TIMER_START('I/O (WRITE) [MAIN LOOP]',myThid) |
171 |
|
IF (taveFreq.GT.0.) THEN |
172 |
|
CALL WRITE_TIME_AVERAGES( myCurrentTime, myCurrentIter, myThid ) |
173 |
|
ENDIF |
174 |
|
CALL TIMER_STOP ('I/O (WRITE) [MAIN LOOP]',myThid) |
175 |
|
#endif |
176 |
|
|
177 |
|
C-- Do IO if needed. |
178 |
|
C Note: |
179 |
|
C ===== |
180 |
|
C At this point model arrays hold U,V,T,S at "time-level" N |
181 |
|
C and cg2d_x at "time-level" N-1/2 where N = I+timeLevBase-1. |
182 |
|
C By convention this is taken to be the model "state". |
183 |
|
CALL TIMER_START('I/O (WRITE) [MAIN LOOP]',myThid) |
184 |
|
CALL DO_THE_MODEL_IO( myCurrentTime, myCurrentIter, myThid ) |
185 |
|
CALL TIMER_STOP ('I/O (WRITE) [MAIN LOOP]',myThid) |
186 |
|
|
187 |
C-- Solve elliptic equation(s). |
C-- Solve elliptic equation(s). |
188 |
C Two-dimensional only for conventional hydrostatic or three-dimensional |
C Two-dimensional only for conventional hydrostatic or |
189 |
C for non-hydrostatic and/or IGW scheme. |
C three-dimensional for non-hydrostatic and/or IGW scheme. |
190 |
|
CALL TIMER_START('SOLVE_FOR_PRESSURE [MAIN LOOP]',myThid) |
191 |
CALL SOLVE_FOR_PRESSURE( myThid ) |
CALL SOLVE_FOR_PRESSURE( myThid ) |
192 |
|
CALL TIMER_STOP ('SOLVE_FOR_PRESSURE [MAIN LOOP]',myThid) |
193 |
|
|
194 |
C-- Do "blocking" sends and receives for tendency "overlap" terms |
C-- Do "blocking" sends and receives for tendency "overlap" terms |
195 |
|
CALL TIMER_START('BLOCKING_EXCHANGES [MAIN LOOP]',myThid) |
196 |
CALL DO_GTERM_BLOCKING_EXCHANGES( myThid ) |
CALL DO_GTERM_BLOCKING_EXCHANGES( myThid ) |
197 |
|
CALL TIMER_STOP ('BLOCKING_EXCHANGES [MAIN LOOP]',myThid) |
198 |
|
|
199 |
myCurrentIter = myCurrentIter + 1 |
myCurrentIter = myCurrentIter + 1 |
200 |
myCurrentTime = myCurrentTime + deltaTtracer |
myCurrentTime = myCurrentTime + deltaTClock |
201 |
|
|
202 |
C-- Save state for restarts |
C-- Save state for restarts |
203 |
C*P* CALL CHECKPOINT( myThid ) |
C Note: |
204 |
|
C ===== |
205 |
|
C Because of the ordering of the timestepping code and |
206 |
|
C tendency term code at end of loop model arrays hold |
207 |
|
C U,V,T,S at "time-level" N but gu, gv, gs, gt, guNM1,... |
208 |
|
C at "time-level" N+1/2 (guNM1 at "time-level" N+1/2 is |
209 |
|
C gu at "time-level" N-1/2) and cg2d_x at "time-level" N+1/2. |
210 |
|
C where N = I+timeLevBase-1 |
211 |
|
C Thus a checkpoint contains U.0000000000, GU.0000000001 and |
212 |
|
C cg2d_x.0000000001 in the indexing scheme used for the model |
213 |
|
C "state" files. This example is referred to as a checkpoint |
214 |
|
C at time level 1 |
215 |
|
CALL TIMER_START('I/O (WRITE) [MAIN LOOP]',myThid) |
216 |
|
CALL |
217 |
|
& WRITE_CHECKPOINT( .FALSE., myCurrentTime, myCurrentIter, myThid ) |
218 |
|
CALL TIMER_STOP ('I/O (WRITE) [MAIN LOOP]',myThid) |
219 |
|
|
220 |
ENDDO |
ENDDO |
221 |
|
CALL TIMER_STOP ('MAIN LOOP',myThid) |
222 |
|
CALL TIMER_START('SPIN-DOWN',myThid) |
223 |
|
|
224 |
|
C-- Final checkpoint (incase the in-loop checkpoint was missed) |
225 |
|
CALL TIMER_START('I/O (WRITE) [SPIN-DOWN]',myThid) |
226 |
|
CALL |
227 |
|
& WRITE_CHECKPOINT( .TRUE., myCurrentTime, myCurrentIter, myThid ) |
228 |
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-DOWN]',myThid) |
229 |
|
|
230 |
|
#ifdef ALLOW_OBCS |
231 |
|
C-- Set Open Boundaries Values |
232 |
|
IF (openBoundaries) THEN |
233 |
|
CALL TIMER_START('OBCS [SPIN_DOWN]',myThid) |
234 |
|
CALL SET_OBCS( myCurrentTime, myThid ) |
235 |
|
CALL TIMER_STOP ('OBCS [SPIN_DOWN]',myThid) |
236 |
|
ENDIF |
237 |
|
#endif |
238 |
|
|
239 |
|
C-- Step-forward U/V/Theta/Salt for purposes of final I/O dump |
240 |
|
CALL TIMER_START('DYNAMICS [SPIN-DOWN]',myThid) |
241 |
|
CALL DYNAMICS( myCurrentTime, myCurrentIter, myThid ) |
242 |
|
CALL TIMER_STOP ('DYNAMICS [SPIN-DOWN]',myThid) |
243 |
|
|
244 |
|
#ifdef ALLOW_NONHYDROSTATIC |
245 |
|
IF ( nonHydrostatic ) THEN |
246 |
|
C-- Step forward W field in N-H algorithm |
247 |
|
CALL TIMER_START('CALC_GW [SPIN-DOWN]',myThid) |
248 |
|
CALL CALC_GW( myThid) |
249 |
|
CALL TIMER_STOP ('CALC_GW [SPIN-DOWN]',myThid) |
250 |
|
ENDIF |
251 |
|
#endif |
252 |
|
|
253 |
|
C-- Do time averages |
254 |
|
#ifdef ALLOW_DIAGNOSTICS |
255 |
|
IF (taveFreq.GT.0.) THEN |
256 |
|
CALL TIMER_START('I/O (WRITE) [SPIN-DOWN]',myThid) |
257 |
|
CALL WRITE_TIME_AVERAGES( myCurrentTime, myCurrentIter, myThid ) |
258 |
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-DOWN]',myThid) |
259 |
|
ENDIF |
260 |
|
#endif |
261 |
|
|
262 |
|
C-- Dump for end state |
263 |
|
CALL TIMER_START('I/O (WRITE) [SPIN-DOWN]',myThid) |
264 |
|
CALL WRITE_STATE( .FALSE., myCurrentTime, myCurrentIter, myThid ) |
265 |
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-DOWN]',myThid) |
266 |
|
|
267 |
|
CALL TIMER_STOP ('SPIN-DOWN',myThid) |
268 |
|
CALL TIMER_STOP ('ALL',myThid) |
269 |
|
|
270 |
|
C-- Write timer statistics |
271 |
|
IF ( myThid .EQ. 1 ) THEN |
272 |
|
CALL TIMER_PRINTALL( myThid ) |
273 |
|
CALL COMM_STATS |
274 |
|
ENDIF |
275 |
|
|
276 |
RETURN |
RETURN |
277 |
END |
END |