43 |
C | | and/or instance. Each instance manages |
C | | and/or instance. Each instance manages |
44 |
C | | a specifc set of tiles. |
C | | a specifc set of tiles. |
45 |
C | | |
C | | |
46 |
C | |--INITIALISE |
C | |--INITIALISE_FIXED |
47 |
C | | o Set initial conditions and model configuration |
C | | o Set model configuration (fixed arrays) |
48 |
C | | Topography, hydrography, timestep, grid, etc.. |
C | | Topography, hydrography, timestep, grid, etc.. |
49 |
C | | |
C | | |
50 |
C ==> | | ** Time stepping loop starts here ** |
C | |--THE_MAIN_LOOP |
51 |
C | | | |
C | | | |
52 |
C /|\ | | |
C | | |--INITIALISE_VARIA |
53 |
C | | |--LOAD_EXTERNAL_DATA |
C | | | o Set initial conditions (variable arrays) |
54 |
C /|\ | | o Load and/or set time dependent forcing fields |
C | | | |
55 |
C | | | |
C ==> | | | ** Time stepping loop starts here ** |
56 |
C /|\ | |--DYNAMICS |
C | | | | |
57 |
C | | | o Evaluate "forward" terms |
C /|\ | | | |
58 |
C /|\ | | |
C | | | |--FORWARD_STEP |
59 |
C | | |--DO_THE_MODEL_IO |
C /|\ | | | | o Does a single forward step of the model |
60 |
C /|\ | | o Write model state |
C | | | | | |
61 |
C | | | |
C /|\ | | | | |
62 |
C /|\ | |--SOLVE_FOR_PRESSURE |
C | | | | |--LOAD_EXTERNAL_DATA |
63 |
C | | | o Find pressure field to keep flow non-divergent |
C /|\ | | | | o Load and/or set time dependent forcing fields |
64 |
C /|\ | | |
C | | | | | |
65 |
C | | |--DO_GTERM_BLOCKING_EXCHANGES |
C /|\ | | | |--DYNAMICS |
66 |
C /|\ | | o Update overlap regions |
C | | | | | o Evaluate "forward" terms |
67 |
C | | | |
C /|\ | | | | |
68 |
C /|\ | |--WRITE_CHECKPOINT |
C | | | | |--DO_THE_MODEL_IO |
69 |
C | | | o Write restart file(s) |
C /|\ | | | | o Write model state |
70 |
C /|\ | | |
C | | | | | |
71 |
C | | | |
C /|\ | | | |--SOLVE_FOR_PRESSURE |
72 |
C |<== | | ** Time stepping loop finishes here ** |
C | | | | | o Find pressure field to keep flow non-divergent |
73 |
|
C /|\ | | | | |
74 |
|
C | | | | |--DO_GTERM_BLOCKING_EXCHANGES |
75 |
|
C /|\ | | | | o Update overlap regions |
76 |
|
C | | | | | |
77 |
|
C /|\ | | | |--WRITE_CHECKPOINT |
78 |
|
C | | | | | o Write restart file(s) |
79 |
|
C /|\ | | | |
80 |
|
C | | | | |
81 |
|
C |<== | | | ** Time stepping loop finishes here ** |
82 |
|
C | | | |
83 |
|
C | | |-- |
84 |
C | | |
C | | |
85 |
C | |--WRITE_STATE |
C | |--WRITE_STATE |
86 |
C | |--WRITE_CHECKPOINT |
C | |--WRITE_CHECKPOINT |
112 |
C arguments. Although this is fiddly it saves the need to |
C arguments. Although this is fiddly it saves the need to |
113 |
C impose additional synchronisation points when they are |
C impose additional synchronisation points when they are |
114 |
C updated. |
C updated. |
|
C myCurrentIter - Iteration counter for this thread |
|
|
C myCurrentTime - Time counter for this thread |
|
|
C I - Loop counter |
|
|
INTEGER I, myCurrentIter |
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|
_RL myCurrentTime |
|
115 |
|
|
116 |
C-- This timer encompasses the whole code |
C-- This timer encompasses the whole code |
117 |
CALL TIMER_START('ALL',myThid) |
CALL TIMER_START('ALL [THE_MODEL_MAIN]',myThid) |
118 |
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|
|
CALL TIMER_START('SPIN-UP',myThid) |
|
119 |
|
|
120 |
C-- Set model initial conditions |
C-- Set model configuration (fixed arrays) |
121 |
CALL TIMER_START('INITIALISE [SPIN-UP]',myThid) |
CALL TIMER_START('INITIALISE_FIXED [THE_MODEL_MAIN]',myThid) |
122 |
CALL INITIALISE( myThid ) |
CALL INITIALISE_FIXED( myThid ) |
123 |
myCurrentTime = startTime |
CALL TIMER_STOP ('INITIALISE_FIXED [THE_MODEL_MAIN]',myThid) |
|
myCurrentIter = nIter0 |
|
|
CALL TIMER_STOP ('INITIALISE [SPIN-UP]',myThid) |
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|
|
|
|
C-- Dump for start state |
|
|
CALL TIMER_START('I/O (WRITE) [SPIN-UP]',myThid) |
|
|
CALL WRITE_STATE( .TRUE., myCurrentTime, myCurrentIter, myThid ) |
|
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CALL TIMER_STOP ('I/O (WRITE) [SPIN-UP]',myThid) |
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|
|
|
|
CALL TIMER_STOP ('SPIN-UP',myThid) |
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|
|
|
C-- Begin time stepping loop |
|
|
CALL TIMER_START('MAIN LOOP',myThid) |
|
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DO I=1, nTimeSteps |
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|
|
|
|
C-- Load forcing/external data fields |
|
|
CALL TIMER_START('I/O (READ) [MAIN LOOP]',myThid) |
|
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CALL LOAD_EXTERNAL_FIELDS( myCurrentTime, myCurrentIter, myThid ) |
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CALL TIMER_STOP ('I/O (READ) [MAIN LOOP]',myThid) |
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|
|
|
#ifdef INCLUDE_SHAPIRO_FILTER_CODE |
|
|
C-- Step forward all tiles, filter and exchange. |
|
|
CALL TIMER_START('SHAP_FILT [MAIN LOOP]',myThid) |
|
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CALL SHAP_FILT( myCurrentTime, myCurrentIter, myThid ) |
|
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CALL TIMER_STOP ('SHAP_FILT [MAIN LOOP]',myThid) |
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#endif |
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|
|
|
|
C-- Step forward fields and calculate time tendency terms |
|
|
CALL TIMER_START('DYNAMICS [MAIN LOOP]',myThid) |
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CALL DYNAMICS( myCurrentTime, myCurrentIter, myThid ) |
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|
CALL TIMER_STOP ('DYNAMICS [MAIN LOOP]',myThid) |
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|
|
|
#ifdef ALLOW_NONHYDROSTATIC |
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C-- Step forward W field in N-H algorithm |
|
|
IF ( nonHydrostatic ) THEN |
|
|
CALL TIMER_START('CALC_GW [MAIN LOOP]',myThid) |
|
|
CALL CALC_GW( myThid) |
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|
CALL TIMER_STOP ('CALC_GW [MAIN LOOP]',myThid) |
|
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ENDIF |
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|
#endif |
|
124 |
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|
|
C-- Do time averages |
|
|
#ifdef INCLUDE_DIAGNOSTICS_INTERFACE_CODE |
|
|
CALL TIMER_START('I/O (WRITE) [MAIN LOOP]',myThid) |
|
|
IF (taveFreq.GT.0.) THEN |
|
|
CALL WRITE_TIME_AVERAGES( myCurrentTime, myCurrentIter, myThid ) |
|
|
ENDIF |
|
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CALL TIMER_STOP ('I/O (WRITE) [MAIN LOOP]',myThid) |
|
|
#endif |
|
125 |
|
|
126 |
C-- Do IO if needed. |
C-- Call time stepping loop of full model |
127 |
C Note: |
CALL TIMER_START('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid) |
128 |
C ===== |
CALL THE_MAIN_LOOP( myThid ) |
129 |
C At this point model arrays hold U,V,T,S at "time-level" N |
CALL TIMER_STOP ('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid) |
|
C and cg2d_x at "time-level" N-1/2 where N = I+timeLevBase-1. |
|
|
C By convention this is taken to be the model "state". |
|
|
CALL TIMER_START('I/O (WRITE) [MAIN LOOP]',myThid) |
|
|
CALL DO_THE_MODEL_IO( myCurrentTime, myCurrentIter, myThid ) |
|
|
CALL TIMER_STOP ('I/O (WRITE) [MAIN LOOP]',myThid) |
|
|
|
|
|
C-- Solve elliptic equation(s). |
|
|
C Two-dimensional only for conventional hydrostatic or |
|
|
C three-dimensional for non-hydrostatic and/or IGW scheme. |
|
|
CALL TIMER_START('SOLVE_FOR_PRESSURE [MAIN LOOP]',myThid) |
|
|
CALL SOLVE_FOR_PRESSURE( myThid ) |
|
|
CALL TIMER_STOP ('SOLVE_FOR_PRESSURE [MAIN LOOP]',myThid) |
|
|
|
|
|
C-- Do "blocking" sends and receives for tendency "overlap" terms |
|
|
CALL TIMER_START('BLOCKING_EXCHANGES [MAIN LOOP]',myThid) |
|
|
CALL DO_GTERM_BLOCKING_EXCHANGES( myThid ) |
|
|
CALL TIMER_STOP ('BLOCKING_EXCHANGES [MAIN LOOP]',myThid) |
|
|
|
|
|
myCurrentIter = myCurrentIter + 1 |
|
|
myCurrentTime = myCurrentTime + deltaTClock |
|
|
|
|
|
C-- Save state for restarts |
|
|
C Note: |
|
|
C ===== |
|
|
C Because of the ordering of the timestepping code and |
|
|
C tendency term code at end of loop model arrays hold |
|
|
C U,V,T,S at "time-level" N but gu, gv, gs, gt, guNM1,... |
|
|
C at "time-level" N+1/2 (guNM1 at "time-level" N+1/2 is |
|
|
C gu at "time-level" N-1/2) and cg2d_x at "time-level" N+1/2. |
|
|
C where N = I+timeLevBase-1 |
|
|
C Thus a checkpoint contains U.0000000000, GU.0000000001 and |
|
|
C cg2d_x.0000000001 in the indexing scheme used for the model |
|
|
C "state" files. This example is referred to as a checkpoint |
|
|
C at time level 1 |
|
|
CALL TIMER_START('I/O (WRITE) [MAIN LOOP]',myThid) |
|
|
CALL |
|
|
& WRITE_CHECKPOINT( .FALSE., myCurrentTime, myCurrentIter, myThid ) |
|
|
CALL TIMER_STOP ('I/O (WRITE) [MAIN LOOP]',myThid) |
|
|
|
|
|
ENDDO |
|
|
CALL TIMER_STOP ('MAIN LOOP',myThid) |
|
|
CALL TIMER_START('SPIN-DOWN',myThid) |
|
|
|
|
|
C-- Final checkpoint (incase the in-loop checkpoint was missed) |
|
|
CALL TIMER_START('I/O (WRITE) [SPIN-DOWN]',myThid) |
|
|
CALL |
|
|
& WRITE_CHECKPOINT( .TRUE., myCurrentTime, myCurrentIter, myThid ) |
|
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-DOWN]',myThid) |
|
|
|
|
|
C-- Step-forward U/V/Theta/Salt for purposes of final I/O dump |
|
|
CALL TIMER_START('DYNAMICS [SPIN-DOWN]',myThid) |
|
|
CALL DYNAMICS( myCurrentTime, myCurrentIter, myThid ) |
|
|
CALL TIMER_STOP ('DYNAMICS [SPIN-DOWN]',myThid) |
|
|
|
|
|
#ifdef ALLOW_NONHYDROSTATIC |
|
|
IF ( nonHydrostatic ) THEN |
|
|
C-- Step forward W field in N-H algorithm |
|
|
CALL TIMER_START('CALC_GW [SPIN-DOWN]',myThid) |
|
|
CALL CALC_GW( myThid) |
|
|
CALL TIMER_STOP ('CALC_GW [SPIN-DOWN]',myThid) |
|
|
ENDIF |
|
|
#endif |
|
|
|
|
|
C-- Do time averages |
|
|
#ifdef INCLUDE_DIAGNOSTICS_INTERFACE_CODE |
|
|
IF (taveFreq.GT.0.) THEN |
|
|
CALL TIMER_START('I/O (WRITE) [SPIN-DOWN]',myThid) |
|
|
CALL WRITE_TIME_AVERAGES( myCurrentTime, myCurrentIter, myThid ) |
|
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-DOWN]',myThid) |
|
|
ENDIF |
|
|
#endif |
|
130 |
|
|
|
C-- Dump for end state |
|
|
CALL TIMER_START('I/O (WRITE) [SPIN-DOWN]',myThid) |
|
|
CALL WRITE_STATE( .FALSE., myCurrentTime, myCurrentIter, myThid ) |
|
|
CALL TIMER_STOP ('I/O (WRITE) [SPIN-DOWN]',myThid) |
|
131 |
|
|
132 |
CALL TIMER_STOP ('SPIN-DOWN',myThid) |
CALL TIMER_STOP ('ALL [THE_MODEL_MAIN]',myThid) |
|
CALL TIMER_STOP ('ALL',myThid) |
|
133 |
|
|
134 |
C-- Write timer statistics |
C-- Write timer statistics |
135 |
IF ( myThid .EQ. 1 ) THEN |
IF ( myThid .EQ. 1 ) THEN |