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

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Revision 1.16 - (show annotations) (download)
Wed Jan 30 04:12:12 2002 UTC (22 years, 3 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint44e_post, chkpt44d_post, checkpoint44e_pre, chkpt44a_post, chkpt44c_pre, release1_final_v1, checkpoint44b_post, chkpt44a_pre, checkpoint44b_pre, chkpt44c_post, checkpoint44f_pre
Branch point for: release1_final
Changes since 1.15: +18 -2 lines
small changes associated with NonLin_FreeSurf option :
* initialization (ini_psurf.F);
* dump hFac fields (write_state.F);
* avoid unnecessary re-computation (forward_step.F initialise_varia.F calc_surf_dr.F);

1 C $Header: /u/gcmpack/models/MITgcmUV/model/src/write_state.F,v 1.15 2001/09/26 18:09:16 cnh Exp $
2 C $Name: $
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 #include "GRID.h"
59 #ifdef ALLOW_PASSIVE_TRACER
60 #include "TR1.h"
61 #endif
62 LOGICAL DIFFERENT_MULTIPLE
63 EXTERNAL DIFFERENT_MULTIPLE
64 INTEGER IO_ERRCOUNT
65 EXTERNAL IO_ERRCOUNT
66
67 C !INPUT/OUTPUT PARAMETERS:
68 C == Routine arguments ==
69 C myThid - Thread number for this instance of the routine.
70 C myIter - Iteration number
71 C myCurrentTime - Current time of simulation ( s )
72 _RL myCurrentTime
73 INTEGER myThid
74 INTEGER myIter
75
76 C !LOCAL VARIABLES:
77 C == Local variables ==
78 CHARACTER*(MAX_LEN_MBUF) suff
79 INTEGER iRec
80 CEOP
81
82 IF (
83 & DIFFERENT_MULTIPLE(dumpFreq,myCurrentTime,
84 & myCurrentTime-deltaTClock) .OR.
85 & myCurrentTime.EQ.endTime .OR.
86 & myCurrentTime.EQ.startTime
87 & ) THEN
88 iRec = int ( (myCurrentTime-startTime) / dumpFreq +1.5 )
89
90 C-- Going to really do some IO. Make everyone except master thread wait.
91 _BARRIER
92 _BEGIN_MASTER( myThid )
93
94 C-- Write model fields
95
96 #ifdef MULTIPLE_RECORD_STATE_FILES
97
98 C Write each snap-shot as a new record in one file per variable
99 C - creates relatively few files but these files can become huge
100 CALL WRITE_REC_XYZ_RL( 'U', uVel,iRec,myIter,myThid)
101 CALL WRITE_REC_XYZ_RL( 'V', vVel,iRec,myIter,myThid)
102 CALL WRITE_REC_XYZ_RL( 'T', theta,iRec,myIter,myThid)
103 CALL WRITE_REC_XYZ_RL( 'S', salt,iRec,myIter,myThid)
104 CALL WRITE_REC_XY_RL('Eta',etaN,iRec,myIter,myThid)
105 CALL WRITE_REC_XYZ_RL( 'W',wVel,iRec,myIter,myThid)
106 #ifdef ALLOW_PASSIVE_TRACER
107 CALL WRITE_REC_XYZ_RL( 'TR1',tr1,iRec,myIter,myThid)
108 #endif
109 #ifdef ALLOW_NONHYDROSTATIC
110 IF (nonHydroStatic) THEN
111 CALL WRITE_REC_XYZ_RL( 'PNH',phi_nh,iRec,myIter,myThid)
112 ENDIF
113 #endif /* ALLOW_NONHYDROSTATIC */
114 #ifdef NONLIN_FRSURF
115 CALL WRITE_REC_XYZ_RS('hFacC.',hFacC,iRec,myIter,myThid)
116 CALL WRITE_FLD_XYZ_RS('hFacW.',hFacW,iRec,myIter,myThid)
117 CALL WRITE_FLD_XYZ_RS('hFacS.',hFacS,iRec,myIter,myThid)
118 #endif /* NONLIN_FRSURF */
119
120 #else /* MULTIPLE_RECORD_STATE_FILES */
121
122 C Write each snap-shot as a new file (original and default method)
123 C - creates many files but for large configurations is easier to
124 C transfer analyse a particular snap-shots
125 WRITE(suff,'(I10.10)') myIter
126 CALL WRITE_FLD_XYZ_RL( 'U.',suff,uVel,myIter,myThid)
127 CALL WRITE_FLD_XYZ_RL( 'V.',suff,vVel,myIter,myThid)
128 CALL WRITE_FLD_XYZ_RL( 'T.',suff,theta,myIter,myThid)
129 CALL WRITE_FLD_XYZ_RL( 'S.',suff,salt,myIter,myThid)
130 CALL WRITE_FLD_XY_RL('Eta.',suff,etaN,myIter,myThid)
131 CALL WRITE_FLD_XYZ_RL( 'W.',suff,wVel,myIter,myThid)
132 #ifdef ALLOW_PASSIVE_TRACER
133 CALL WRITE_FLD_XYZ_RL( 'TR1.',suff,tr1,myIter,myThid)
134 #endif
135 #ifdef ALLOW_NONHYDROSTATIC
136 IF (nonHydroStatic) THEN
137 CALL WRITE_FLD_XYZ_RL( 'PNH.',suff,phi_nh,myIter,myThid)
138 ENDIF
139 #endif /* ALLOW_NONHYDROSTATIC */
140 #ifdef NONLIN_FRSURF
141 CALL WRITE_FLD_XYZ_RS('hFacC.',suff,hFacC,myIter,myThid)
142 CALL WRITE_FLD_XYZ_RS('hFacW.',suff,hFacW,myIter,myThid)
143 CALL WRITE_FLD_XYZ_RS('hFacS.',suff,hFacS,myIter,myThid)
144 #endif /* NONLIN_FRSURF */
145
146 #endif /* MULTIPLE_RECORD_STATE_FILES */
147
148 _END_MASTER( myThid )
149 _BARRIER
150
151 ENDIF
152
153 RETURN
154 END

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