-
Notifications
You must be signed in to change notification settings - Fork 0
/
CONGRADC.for
183 lines (180 loc) · 4.7 KB
/
CONGRADC.for
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
SUBROUTINE CONGRADC (ISTL_)
C
C CHANGE RECORD
C ** SUBROUTINE CONGRAD SOLVES THE EXTERNAL MODE BY A CONJUGATE
C ** GRADIENT SCHEME
C
USE GLOBAL
REAL TTMP
! *** DSLLC
REAL,SAVE,ALLOCATABLE,DIMENSION(:)::PNORTH
REAL,SAVE,ALLOCATABLE,DIMENSION(:)::PSOUTH
REAL,SAVE,ALLOCATABLE,DIMENSION(:)::TMPCG
IF(.NOT.ALLOCATED(PNORTH))THEN
ALLOCATE(PNORTH(LCM))
ALLOCATE(PSOUTH(LCM))
ALLOCATE(TMPCG(LCM))
PNORTH=0.0
PSOUTH=0.0
TMPCG=0.0
ENDIF
! *** DSLLC
C
TTMP=SECNDS(0.0)
DO L=2,LA
PNORTH(L)=P(LNC(L))
PSOUTH(L)=P(LSC(L))
ENDDO
DO L=2,LA
RCG(L)=FPTMP(L)-CCC(L)*P(L)-CCN(L)*PNORTH(L)-CCS(L)*PSOUTH(L)
& -CCW(L)*P(L-1)-CCE(L)*P(L+1)
ENDDO
IF(MDCHH.GE.1)THEN
DO NMD=1,MDCHH
LHOST=LMDCHH(NMD)
LCHNU=LMDCHU(NMD)
LCHNV=LMDCHV(NMD)
C
C X-DIRECTION CHANNEL
C
IF(MDCHTYP(NMD).EQ.1)THEN
RCG(LCHNU)=RCG(LCHNU)+CCCCHH(NMD)*P(LHOST)
RCG(LHOST)=RCG(LHOST)+CCCCHH(NMD)*P(LCHNU)
ENDIF
C
C Y-DIRECTION CHANNEL
C
IF(MDCHTYP(NMD).EQ.2)THEN
RCG(LCHNV)=RCG(LCHNV)+CCCCHH(NMD)*P(LHOST)
RCG(LHOST)=RCG(LHOST)+CCCCHH(NMD)*P(LCHNV)
ENDIF
ENDDO
ENDIF
DO L=2,LA
PCG(L)=RCG(L)*CCCI(L)
ENDDO
RPCG=0.
DO L=2,LA
RPCG=RPCG+RCG(L)*PCG(L)
ENDDO
IF(RPCG.EQ.0.0)RETURN ! *** DSLLC SINGLE LINE
ITER=0
100 CONTINUE
ITER=ITER+1
DO L=2,LA
PNORTH(L)=PCG(LNC(L))
PSOUTH(L)=PCG(LSC(L))
ENDDO
DO L=2,LA
APCG(L)=CCC(L)*PCG(L)+CCS(L)*PSOUTH(L)+CCN(L)*PNORTH(L)
& +CCW(L)*PCG(L-1)+CCE(L)*PCG(L+1)
ENDDO
IF(MDCHH.GE.1)THEN
DO NMD=1,MDCHH
LHOST=LMDCHH(NMD)
LCHNU=LMDCHU(NMD)
LCHNV=LMDCHV(NMD)
C
C X-DIRECTION CHANNEL
C
IF(MDCHTYP(NMD).EQ.1)THEN
APCG(LCHNU)=APCG(LCHNU)+CCCCHH(NMD)*PCG(LHOST)
APCG(LHOST)=APCG(LHOST)+CCCCHH(NMD)*PCG(LCHNU)
ENDIF
C
C Y-DIRECTION CHANNEL
C
IF(MDCHTYP(NMD).EQ.2)THEN
APCG(LCHNV)=APCG(LCHNV)+CCCCHH(NMD)*PCG(LHOST)
APCG(LHOST)=APCG(LHOST)+CCCCHH(NMD)*PCG(LCHNV)
ENDIF
ENDDO
ENDIF
PAPCG=0.
DO L=2,LA
PAPCG=PAPCG+APCG(L)*PCG(L)
ENDDO
ALPHA=RPCG/PAPCG
DO L=2,LA
P(L)=P(L)+ALPHA*PCG(L)
ENDDO
DO L=2,LA
RCG(L)=RCG(L)-ALPHA*APCG(L)
ENDDO
DO L=2,LA
TMPCG(L)=CCCI(L)*RCG(L)
ENDDO
RPCGN=0.
RSQ=0.
DO L=2,LA
RPCGN=RPCGN+RCG(L)*TMPCG(L)
RSQ=RSQ+RCG(L)*RCG(L)
ENDDO
IF(RSQ .LE. RSQM) GOTO 200
IF(ITER .GE. ITERM)THEN
WRITE(6,600)
WRITE(8,*)' I J CCS CCW CCC CCE CCN FPTMP' ! PM
DO L=2,LA
WRITE(8,800)IL(L),JL(L),CCS(L),CCW(L),CCC(L),CCE(L),CCN(L),
& FPTMP(L)
ENDDO
CALL SURFPLT
CALL VELPLTH
CALL EEXPOUT(-1)
STOP
ENDIF
BETA=RPCGN/RPCG
RPCG=RPCGN
DO L=2,LA
PCG(L)=TMPCG(L)+BETA*PCG(L)
ENDDO
GOTO 100
600 FORMAT(' MAXIMUM ITERATIONS EXCEEDED IN EXTERNAL SOLUTION')
C
C ** CALCULATE FINAL RESIDUAL
C
200 CONTINUE
! *** DSLLC BEGIN BLOCK
IF(ISLOG.GE.1)THEN
DO L=2,LA
PNORTH(L)=P(LNC(L))
PSOUTH(L)=P(LSC(L))
ENDDO
RSQ=0.
DO L=2,LA
RCG(L)=CCC(L)*P(L)+CCS(L)*PSOUTH(L)+CCN(L)*PNORTH(L)
& +CCW(L)*P(L-1)+CCE(L)*P(L+1)-FPTMP(L)
ENDDO
IF(MDCHH.GE.1)THEN
DO NMD=1,MDCHH
LHOST=LMDCHH(NMD)
LCHNU=LMDCHU(NMD)
LCHNV=LMDCHV(NMD)
C
C X-DIRECTION CHANNEL
C
IF(MDCHTYP(NMD).EQ.1)THEN
RCG(LCHNU)=RCG(LCHNU)-CCCCHH(NMD)*P(LHOST)
RCG(LHOST)=RCG(LHOST)-CCCCHH(NMD)*P(LCHNU)
ENDIF
C
C Y-DIRECTION CHANNEL
C
IF(MDCHTYP(NMD).EQ.2)THEN
RCG(LCHNV)=RCG(LCHNV)-CCCCHH(NMD)*P(LHOST)
RCG(LHOST)=RCG(LHOST)-CCCCHH(NMD)*P(LCHNV)
ENDIF
ENDDO
ENDIF
DO L=2,LA
RCG(L)=RCG(L)*CCCI(L)
ENDDO
DO L=2,LA
RSQ=RSQ+RCG(L)*RCG(L)
ENDDO
ENDIF
! *** DSLLC END BLOCK
TCONG=TCONG+SECNDS(TTMP)
800 FORMAT(2I6,6E13.4)
RETURN
END