/[MITgcm]/MITgcm_contrib/AITCZ/code/write_state.F
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Revision 1.1 - (hide annotations) (download)
Wed Aug 20 15:24:59 2003 UTC (21 years, 11 months ago) by czaja
Branch: MAIN
CVS Tags: HEAD
Initial creation of Arnaud's simple coupled simulation.

1 czaja 1.1 C $Header: /u/u0/gcmpack/models/MITgcmUV/model/src/write_state.F,v 1.15 2001/09/26 18:09:16 cnh Exp $
2     C $Name: release1_beta1 $
3     #include "CPP_OPTIONS.h"
4    
5     #undef MULTIPLE_RECORD_STATE_FILES
6    
7     CBOP
8     C !ROUTINE: WRITE_STATE
9     C !INTERFACE:
10     SUBROUTINE WRITE_STATE ( myCurrentTime, myIter, myThid )
11     C !DESCRIPTION: \bv
12     C *==========================================================*
13     C | SUBROUTINE WRITE_STATE
14     C | o Controlling routine for IO to dump model state.
15     C *==========================================================*
16     C | Write model state files for post-processing. This file
17     C | includes code for diagnosing W and RHO for output.
18     C | File write_state.F: Routines to handle mid-level I/O
19     C | interface.
20     C | o WRITE_STATE - Write out model state.
21     C | The following CPP flag (MULTIPLE_RECORD_STATE_FILES) is
22     C | #define/#undefed here since it is specific to this routine
23     C | and very user-preference specific.
24     C |
25     C | If #undefed (default) the state files are written as in all versions
26     C | prior to checkpoint32, where a file is created per variable, per time
27     C | and per tile. This *has* to be the default because most users use this
28     C | mode and all utilities and scripts (diagnostic) assume this form.
29     C | It is also robust, as explained below.
30     C |
31     C | If #defined, subsequent snap-shots are written as records in the
32     C | same file (no iteration number in filenames).
33     C | Advantages: - fewer files
34     C | - for small problems, is easy to copy the output around
35     C | Disadvantages:
36     C | - breaks a lot of diagnostic scripts
37     C | - for large or long problems this creates huge files
38     C | - is an unexpected, unsolicited change in behaviour which came
39     C | as a surprise (in c32) and inconvenience to several users
40     C | - can not accomodate changing the frequency of output
41     C | after a pickup (this is trivial in previous method
42     C | but needs new code and parameters in this new method)
43     C | Known Bugs:
44     C | - if the length of integration is not exactly an integer
45     C | times the output frequency then the last record written
46     C | (at end of integration) overwrites a previously written
47     C | record corresponding to an earier time. *BE WARNED*
48     C *==========================================================*
49     C \ev
50    
51     C !USES:
52     IMPLICIT NONE
53     C == Global variables ===
54     #include "SIZE.h"
55     #include "EEPARAMS.h"
56     #include "PARAMS.h"
57     #include "DYNVARS.h"
58     #ifdef ALLOW_PASSIVE_TRACER
59     #include "TR1.h"
60     #endif
61     LOGICAL DIFFERENT_MULTIPLE
62     EXTERNAL DIFFERENT_MULTIPLE
63     INTEGER IO_ERRCOUNT
64     EXTERNAL IO_ERRCOUNT
65    
66     C !INPUT/OUTPUT PARAMETERS:
67     C == Routine arguments ==
68     C myThid - Thread number for this instance of the routine.
69     C myIter - Iteration number
70     C myCurrentTime - Current time of simulation ( s )
71     _RL myCurrentTime
72     INTEGER myThid
73     INTEGER myIter
74    
75     C !LOCAL VARIABLES:
76     C == Local variables ==
77     CHARACTER*(MAX_LEN_MBUF) suff
78     INTEGER iRec
79     CEOP
80    
81     IF (
82     & DIFFERENT_MULTIPLE(dumpFreq,myCurrentTime,
83     & myCurrentTime-deltaTClock) .OR.
84     & myCurrentTime.EQ.endTime .OR.
85     & myCurrentTime.EQ.startTime
86     & ) THEN
87     iRec = int ( (myCurrentTime-startTime) / dumpFreq +1.5 )
88    
89     C-- Going to really do some IO. Make everyone except master thread wait.
90     _BARRIER
91     _BEGIN_MASTER( myThid )
92    
93     C-- Write model fields
94     #ifdef MULTIPLE_RECORD_STATE_FILES
95     C Write each snap-shot as a new record in one file per variable
96     C - creates relatively few files but these files can become huge
97     CC(acz) CALL WRITE_REC_XYZ_RL( 'U', uVel,iRec,myIter,myThid)
98     CC(acz) CALL WRITE_REC_XYZ_RL( 'V', vVel,iRec,myIter,myThid)
99     CC(acz) CALL WRITE_REC_XYZ_RL( 'T', theta,iRec,myIter,myThid)
100     CC(acz) CALL WRITE_REC_XYZ_RL( 'S', salt,iRec,myIter,myThid)
101     CC(acz) CALL WRITE_REC_XY_RL('Eta',etaN,iRec,myIter,myThid)
102     CC(acz) CALL WRITE_REC_XYZ_RL( 'W',wVel,iRec,myIter,myThid)
103     #ifdef ALLOW_PASSIVE_TRACER
104     CALL WRITE_REC_XYZ_RL( 'TR1',tr1,iRec,myIter,myThid)
105     #endif
106     #ifdef ALLOW_NONHYDROSTATIC
107     IF (nonHydroStatic) THEN
108     CALL WRITE_REC_XYZ_RL( 'PNH',phi_nh,iRec,myIter,myThid)
109     ENDIF
110     #endif /* ALLOW_NONHYDROSTATIC */
111     #else
112     C Write each snap-shot as a new file (original and default method)
113     C - creates many files but for large configurations is easier to
114     C transfer analyse a particular snap-shots
115     WRITE(suff,'(I10.10)') myIter
116     CALL WRITE_FLD_XYZ_RL( 'U.',suff,uVel,myIter,myThid)
117     CALL WRITE_FLD_XYZ_RL( 'V.',suff,vVel,myIter,myThid)
118     CALL WRITE_FLD_XYZ_RL( 'T.',suff,theta,myIter,myThid)
119     CALL WRITE_FLD_XYZ_RL( 'S.',suff,salt,myIter,myThid)
120     CALL WRITE_FLD_XY_RL('Eta.',suff,etaN,myIter,myThid)
121     CALL WRITE_FLD_XYZ_RL( 'W.',suff,wVel,myIter,myThid)
122     #ifdef ALLOW_PASSIVE_TRACER
123     CALL WRITE_FLD_XYZ_RL( 'TR1.',suff,tr1,myIter,myThid)
124     #endif
125     #ifdef ALLOW_NONHYDROSTATIC
126     IF (nonHydroStatic) THEN
127     CALL WRITE_FLD_XYZ_RL( 'PNH.',suff,phi_nh,myIter,myThid)
128     ENDIF
129     #endif /* ALLOW_NONHYDROSTATIC */
130     CC (acz): write SST and STL
131     #ifdef ALLOW_MITPHYS
132     CALL WRITE_FLD_XY_RL('SST.',suff,SST_DYN,myIter,myThid)
133     CALL WRITE_FLD_XY_RL('STL.',suff,STL_DYN,myIter,myThid)
134     #endif /* ALLOW_MITPHYS */
135     #endif /* MULTIPLE_RECORD_STATE_FILES */
136    
137     _END_MASTER( myThid )
138     _BARRIER
139    
140     ENDIF
141    
142     RETURN
143     END

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