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

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Revision 1.2 - (show 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 C $Header: $
2 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 _BARRIER
42
43 #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
64 IF ( PTRACERS_pickup_read_mdsio ) THEN
65
66 WRITE(fn,'(A,I10.10)') 'pickup_ptracers.',myIter
67 prec = precFloat64
68
69 IF ( usePickupBeforeC54 ) THEN
70 C Read fields as consecutive records
71 DO iTracer=1,PTRACERS_num
72 iRec = iTracer
73 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 _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 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 _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 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 _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 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 iRec = 2*iTracer
106 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 _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
113 ENDIF
114
115 ENDIF
116
117 #endif /* ALLOW_PTRACERS */
118
119 RETURN
120 END

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