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

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Revision 1.30 - (show annotations) (download)
Thu Feb 5 00:13:47 2004 UTC (20 years, 3 months ago) by edhill
Branch: MAIN
Changes since 1.29: +9 -6 lines
 o getting closer to a usable MNC package through the "cw" layer:
   - numerous bug fixes
   - global attributes added
   - improved handling of the unlimited dimension
   - "cw" can handle variables with up to 7 dimensions
   - added list of pre-defined grid types

1 C $Header: /u/u3/gcmpack/MITgcm/model/src/write_state.F,v 1.29 2004/02/04 05:45:09 edhill Exp $
2 C $Name: $
3
4 #include "PACKAGES_CONFIG.h"
5 #include "CPP_OPTIONS.h"
6
7 #undef MULTIPLE_RECORD_STATE_FILES
8
9 CBOP
10 C !ROUTINE: WRITE_STATE
11 C !INTERFACE:
12 SUBROUTINE WRITE_STATE ( myTime, myIter, myThid )
13 C !DESCRIPTION: \bv
14 C *==========================================================*
15 C | SUBROUTINE WRITE_STATE
16 C | o Controlling routine for IO to dump model state.
17 C *==========================================================*
18 C | Write model state files for post-processing. This file
19 C | includes code for diagnosing W and RHO for output.
20 C | File write_state.F: Routines to handle mid-level I/O
21 C | interface.
22 C | o WRITE_STATE - Write out model state.
23 C | The following CPP flag (MULTIPLE_RECORD_STATE_FILES) is
24 C | #define/#undefed here since it is specific to this routine
25 C | and very user-preference specific.
26 C |
27 C | If #undefed (default) the state files are written as in all versions
28 C | prior to checkpoint32, where a file is created per variable, per time
29 C | and per tile. This *has* to be the default because most users use this
30 C | mode and all utilities and scripts (diagnostic) assume this form.
31 C | It is also robust, as explained below.
32 C |
33 C | If #defined, subsequent snap-shots are written as records in the
34 C | same file (no iteration number in filenames).
35 C | Advantages: - fewer files
36 C | - for small problems, is easy to copy the output around
37 C | Disadvantages:
38 C | - breaks a lot of diagnostic scripts
39 C | - for large or long problems this creates huge files
40 C | - is an unexpected, unsolicited change in behaviour which came
41 C | as a surprise (in c32) and inconvenience to several users
42 C | - can not accomodate changing the frequency of output
43 C | after a pickup (this is trivial in previous method
44 C | but needs new code and parameters in this new method)
45 C | Known Bugs:
46 C | - if the length of integration is not exactly an integer
47 C | times the output frequency then the last record written
48 C | (at end of integration) overwrites a previously written
49 C | record corresponding to an earier time. *BE WARNED*
50 C *==========================================================*
51 C \ev
52
53 C !USES:
54 IMPLICIT NONE
55 C == Global variables ===
56 #include "SIZE.h"
57 #include "EEPARAMS.h"
58 #include "PARAMS.h"
59 #include "DYNVARS.h"
60 #include "GRID.h"
61 #include "EOS.h"
62 #ifdef ALLOW_PASSIVE_TRACER
63 #include "TR1.h"
64 #endif
65 LOGICAL DIFFERENT_MULTIPLE
66 EXTERNAL DIFFERENT_MULTIPLE
67 INTEGER IO_ERRCOUNT
68 EXTERNAL IO_ERRCOUNT
69
70 C !INPUT/OUTPUT PARAMETERS:
71 C == Routine arguments ==
72 C myThid - Thread number for this instance of the routine.
73 C myIter - Iteration number
74 C myTime - Current time of simulation ( s )
75 _RL myTime
76 INTEGER myThid
77 INTEGER myIter
78
79 C !LOCAL VARIABLES:
80 C == Local variables ==
81 CHARACTER*(MAX_LEN_MBUF) suff
82 INTEGER iRec
83 #ifdef ALLOW_MNC
84 _RL mnc_d_iter
85 #endif
86 CEOP
87
88 IF (
89 & DIFFERENT_MULTIPLE(dumpFreq,myTime,
90 & myTime-deltaTClock) .OR.
91 & myTime.EQ.endTime .OR.
92 & myTime.EQ.startTime
93 & ) THEN
94 IF ( dumpFreq .EQ. 0.0 ) THEN
95 iRec = 1
96 ELSE
97 iRec = int ( (myTime-startTime) / dumpFreq +1.5 )
98 ENDIF
99
100 C-- Going to really do some IO. Make everyone except master thread wait.
101 _BARRIER
102 _BEGIN_MASTER( myThid )
103
104 C-- Write model fields
105
106 #ifdef MULTIPLE_RECORD_STATE_FILES
107
108 C Write each snap-shot as a new record in one file per variable
109 C - creates relatively few files but these files can become huge
110 CALL WRITE_REC_XYZ_RL( 'U', uVel,iRec,myIter,myThid)
111 CALL WRITE_REC_XYZ_RL( 'V', vVel,iRec,myIter,myThid)
112 CALL WRITE_REC_XYZ_RL( 'T', theta,iRec,myIter,myThid)
113 CALL WRITE_REC_XYZ_RL( 'S', salt,iRec,myIter,myThid)
114 CALL WRITE_REC_XY_RL('Eta',etaN,iRec,myIter,myThid)
115 CALL WRITE_REC_XYZ_RL( 'W',wVel,iRec,myIter,myThid)
116 #ifdef ALLOW_PASSIVE_TRACER
117 ceh3 needs an IF ( usePASSIVE_TRACER ) THEN
118 CALL WRITE_REC_XYZ_RL( 'TR1',tr1,iRec,myIter,myThid)
119 #endif /* ALLOW_PASSIVE_TRACER */
120 #ifdef ALLOW_NONHYDROSTATIC
121 IF (nonHydroStatic) THEN
122 CALL WRITE_REC_XYZ_RL( 'PNH',phi_nh,iRec,myIter,myThid)
123 ENDIF
124 #endif /* ALLOW_NONHYDROSTATIC */
125 #ifdef NONLIN_FRSURF
126 c CALL WRITE_REC_XYZ_RS('hFacC.',hFacC,iRec,myIter,myThid)
127 c CALL WRITE_REC_XYZ_RS('hFacW.',hFacW,iRec,myIter,myThid)
128 c CALL WRITE_REC_XYZ_RS('hFacS.',hFacS,iRec,myIter,myThid)
129 #endif /* NONLIN_FRSURF */
130
131 #else /* MULTIPLE_RECORD_STATE_FILES */
132
133 C Write each snap-shot as a new file (original and default method)
134 C - creates many files but for large configurations is easier to
135 C transfer analyse a particular snap-shots
136 WRITE(suff,'(I10.10)') myIter
137 CALL WRITE_FLD_XYZ_RL( 'U.',suff,uVel,myIter,myThid)
138 CALL WRITE_FLD_XYZ_RL( 'V.',suff,vVel,myIter,myThid)
139 CALL WRITE_FLD_XYZ_RL( 'T.',suff,theta,myIter,myThid)
140 CALL WRITE_FLD_XYZ_RL( 'S.',suff,salt,myIter,myThid)
141 CALL WRITE_FLD_XY_RL('Eta.',suff,etaN,myIter,myThid)
142 CALL WRITE_FLD_XYZ_RL( 'W.',suff,wVel,myIter,myThid)
143 IF ( useDynP_inEos_Zc .OR. myIter.NE.nIter0 )
144 & CALL WRITE_FLD_XYZ_RL( 'PH.',suff,totPhiHyd,myIter,myThid)
145 IF (buoyancyRelation.NE.'ATMOSPHERIC' .AND. myIter.NE.nIter0)
146 & CALL WRITE_FLD_XY_RL('PHL.',suff,phiHydLow,myIter,myThid)
147 #ifdef ALLOW_PASSIVE_TRACER
148 ceh3 needs an IF ( usePASSIVE_TRACER ) THEN
149 CALL WRITE_FLD_XYZ_RL( 'TR1.',suff,tr1,myIter,myThid)
150 #endif
151 #ifdef ALLOW_NONHYDROSTATIC
152 IF (nonHydroStatic) THEN
153 CALL WRITE_FLD_XYZ_RL( 'PNH.',suff,phi_nh,myIter,myThid)
154 ENDIF
155 #endif /* ALLOW_NONHYDROSTATIC */
156 #ifdef NONLIN_FRSURF
157 c CALL WRITE_FLD_XYZ_RS('hFacC.',suff,hFacC,myIter,myThid)
158 c CALL WRITE_FLD_XYZ_RS('hFacW.',suff,hFacW,myIter,myThid)
159 c CALL WRITE_FLD_XYZ_RS('hFacS.',suff,hFacS,myIter,myThid)
160 #endif /* NONLIN_FRSURF */
161
162 #endif /* MULTIPLE_RECORD_STATE_FILES */
163
164 #ifdef ALLOW_PTRACERS
165 IF (usePTRACERS) CALL PTRACERS_WRITE_STATE(myIter,myTime,myThid)
166 #endif /* ALLOW_PTRACERS */
167 _END_MASTER( myThid )
168 _BARRIER
169
170 #ifdef ALLOW_MNC
171 C Test the MNC package
172 mnc_d_iter = myIter
173 write(*,*) 'mnc_d_iter, myIter = ', mnc_d_iter, myIter
174 CALL MNC_CW_RL_W_R(myThid,'state',0,0,'iter',-1,mnc_d_iter)
175 CALL MNC_CW_RL_W_D(myThid,'state',0,0,'U',0, uVel)
176 #endif
177
178 ENDIF
179
180 RETURN
181 END

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