/[MITgcm]/MITgcm/pkg/ptracers/ptracers_read_pickup.F
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Annotation of /MITgcm/pkg/ptracers/ptracers_read_pickup.F

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Revision 1.2 - (hide annotations) (download)
Thu Oct 26 00:29:33 2006 UTC (17 years, 7 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint58r_post, checkpoint58t_post, checkpoint58s_post
Changes since 1.1: +22 -16 lines
- call pkg/rw S/R (rather than directly MDSIO)
- all threads call I/0 S/R (needed for singleCPUIO to work in multi-threaded)

1 jmc 1.2 C $Header: $
2 jmc 1.1 C $Name: $
3    
4     #include "PTRACERS_OPTIONS.h"
5    
6     C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
7     CBOP
8     C !ROUTINE: PTRACERS_READ_PICKUP
9    
10     C !INTERFACE:
11     SUBROUTINE PTRACERS_READ_PICKUP( myIter, myThid )
12    
13     C !DESCRIPTION:
14     C Reads current state of passive tracers from a pickup file
15    
16     C !USES:
17     IMPLICIT NONE
18     #include "SIZE.h"
19     #include "EEPARAMS.h"
20     #include "PARAMS.h"
21     #include "PTRACERS_SIZE.h"
22     #include "PTRACERS.h"
23    
24     C !INPUT PARAMETERS:
25     C myIter :: time-step number
26     C myThid :: thread number
27     INTEGER myIter
28     INTEGER myThid
29    
30     #ifdef ALLOW_PTRACERS
31    
32     C !LOCAL VARIABLES:
33     C iTracer :: loop indices
34     C iRec :: record number
35     C fn :: character buffer for creating filename
36     C prec :: precision of pickup files
37     INTEGER iTracer,prec,iRec
38     CHARACTER*(MAX_LEN_MBUF) fn
39     CEOP
40    
41 jmc 1.2 _BARRIER
42    
43 jmc 1.1 #ifdef ALLOW_MNC
44     IF ( PTRACERS_pickup_read_mnc ) THEN
45     C Read variables from the pickup file
46     WRITE(fn,'(a)') 'pickup_ptracers'
47     CALL MNC_FILE_CLOSE_ALL_MATCHING(fn, myThid)
48     CALL MNC_CW_SET_UDIM(fn, 1, myThid)
49     CALL MNC_CW_SET_CITER(fn, 3, 3, myIter, -1, myThid)
50     DO iTracer = 1,PTRACERS_numInUse
51     CALL MNC_CW_RL_R('D',fn,0,0, PTRACERS_names(iTracer),
52     & gPtrNm1(1-OLx,1-OLy,1,1,1,iTracer),myThid)
53     _EXCH_XYZ_R8(gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer),myThid)
54     ENDDO
55     CALL MNC_CW_SET_UDIM(fn, 2, myThid)
56     DO iTracer = 1,PTRACERS_numInUse
57     CALL MNC_CW_RL_R('D',fn,0,0, PTRACERS_names(iTracer),
58     & pTracer(1-OLx,1-OLy,1,1,1,iTracer),myThid)
59     _EXCH_XYZ_R8(pTracer(1-Olx,1-Oly,1,1,1,iTracer),myThid)
60     ENDDO
61     ENDIF
62     #endif /* ALLOW_MNC */
63 jmc 1.2
64 jmc 1.1 IF ( PTRACERS_pickup_read_mdsio ) THEN
65    
66     WRITE(fn,'(A,I10.10)') 'pickup_ptracers.',myIter
67     prec = precFloat64
68 jmc 1.2
69 jmc 1.1 IF ( usePickupBeforeC54 ) THEN
70     C Read fields as consecutive records
71     DO iTracer=1,PTRACERS_num
72     iRec = iTracer
73 jmc 1.2 CALL READ_REC_3D_RL( fn, prec, Nr,
74     O pTracer(1-Olx,1-Oly,1,1,1,iTracer),
75     I iRec, myIter, myThid )
76 jmc 1.1 _EXCH_XYZ_R8(pTracer(1-Olx,1-Oly,1,1,1,iTracer),myThid)
77     ENDDO
78    
79     C Read historical tendancies as consecutive records
80     DO iTracer=1,PTRACERS_num
81     iRec = iTracer + PTRACERS_num
82 jmc 1.2 CALL READ_REC_3D_RL( fn, prec, Nr,
83     O gPtr(1-Olx,1-Oly,1,1,1,iTracer),
84     I iRec, myIter, myThid )
85 jmc 1.1 _EXCH_XYZ_R8(gPtr(1-Olx,1-Oly,1,1,1,iTracer),myThid)
86     ENDDO
87     DO iTracer=1,PTRACERS_num
88     iRec = iTracer + PTRACERS_num*2
89 jmc 1.2 CALL READ_REC_3D_RL( fn, prec, Nr,
90     O gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer),
91     I iRec, myIter, myThid )
92 jmc 1.1 _EXCH_XYZ_R8(gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer),myThid)
93     ENDDO
94    
95     ELSE
96     C Read fields & tendancies (needed for AB) as consecutive records,
97     C one tracer after the other, only for tracers "InUse". Note:
98     C this allow to restart from a pickup with a different number of
99     C tracers, with write_pickup dumping all of them (PTRACERS_num).
100     DO iTracer=1,PTRACERS_numInUse
101 jmc 1.2 iRec = 2*iTracer -1
102     CALL READ_REC_3D_RL( fn, prec, Nr,
103     O pTracer(1-Olx,1-Oly,1,1,1,iTracer),
104     I iRec, myIter, myThid )
105 jmc 1.1 iRec = 2*iTracer
106 jmc 1.2 CALL READ_REC_3D_RL( fn, prec, Nr,
107     O gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer),
108     I iRec, myIter, myThid )
109 jmc 1.1 _EXCH_XYZ_R8(pTracer(1-Olx,1-Oly,1,1,1,iTracer),myThid)
110     _EXCH_XYZ_R8(gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer),myThid)
111     ENDDO
112 jmc 1.2
113 jmc 1.1 ENDIF
114    
115     ENDIF
116    
117     #endif /* ALLOW_PTRACERS */
118    
119     RETURN
120     END

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