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
|
C
C SPDX-License-Identifier: BSD-3-Clause
C
* SB02OD EXAMPLE PROGRAM TEXT
*
* .. Parameters ..
INTEGER NIN, NOUT
PARAMETER ( NIN = 5, NOUT = 6 )
INTEGER NMAX, MMAX, PMAX
PARAMETER ( NMAX = 20, MMAX = 20, PMAX = 20 )
INTEGER NMAX2M, NMAX2
PARAMETER ( NMAX2M = 2*NMAX+MMAX, NMAX2 = 2*NMAX )
INTEGER LDA, LDB, LDL, LDQ, LDR, LDS, LDT, LDU, LDX
PARAMETER ( LDA = NMAX, LDB = NMAX, LDL = NMAX,
$ LDQ = MAX(NMAX,PMAX), LDR = MAX(MMAX,PMAX),
$ LDS = NMAX2M, LDT = NMAX2M, LDU = NMAX2,
$ LDX = NMAX )
INTEGER LIWORK
PARAMETER ( LIWORK = MAX(MMAX,NMAX2) )
INTEGER LDWORK
PARAMETER ( LDWORK = MAX(14*NMAX+23,16*NMAX) )
INTEGER LBWORK
PARAMETER ( LBWORK = NMAX2 )
* .. Local Scalars ..
DOUBLE PRECISION RCOND, TOL
INTEGER I, INFO, J, M, N, P
CHARACTER*1 DICO, FACT, JOBB, JOBL, SORT, UPLO
LOGICAL LJOBB
* .. Local Arrays ..
DOUBLE PRECISION A(LDA,NMAX), ALFAI(NMAX2), ALFAR(NMAX2),
$ B(LDB,MMAX), BETA(NMAX2), DWORK(LDWORK),
$ L(LDL,MMAX), Q(LDQ,NMAX), R(LDR,MMAX),
$ S(LDS,NMAX2M), T(LDT,NMAX2), U(LDU,NMAX2),
$ X(LDX,NMAX)
INTEGER IWORK(LIWORK)
LOGICAL BWORK(LBWORK)
C .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
* .. External Subroutines ..
EXTERNAL SB02OD
* .. Intrinsic Functions ..
INTRINSIC MAX
* .. Executable Statements ..
*
WRITE ( NOUT, FMT = 99999 )
* Skip the heading in the data file and read the data.
READ ( NIN, FMT = '()' )
READ ( NIN, FMT = * ) N, M, P, TOL, DICO, JOBB, FACT, UPLO, JOBL,
$ SORT
IF ( N.LT.0 .OR. N.GT.NMAX ) THEN
WRITE ( NOUT, FMT = 99995 ) N
ELSE
READ ( NIN, FMT = * ) ( ( A(I,J), J = 1,N ), I = 1,N )
IF ( M.LT.0 .OR. M.GT.MMAX ) THEN
WRITE ( NOUT, FMT = 99994 ) M
ELSE
LJOBB = LSAME( JOBB, 'B' )
IF ( LJOBB ) THEN
READ ( NIN, FMT = * ) ( ( B(I,J), J = 1,M ), I = 1,N )
ELSE
READ ( NIN, FMT = * ) ( ( B(I,J), J = 1,N ), I = 1,N )
END IF
IF ( P.LT.0 .OR. P.GT.PMAX ) THEN
WRITE ( NOUT, FMT = 99993 ) P
ELSE
IF ( LSAME( FACT, 'N' ) .OR. LSAME( FACT, 'D' ) ) THEN
READ ( NIN, FMT = * )
$ ( ( Q(I,J), J = 1,N ), I = 1,N )
ELSE
READ ( NIN, FMT = * )
$ ( ( Q(I,J), J = 1,N ), I = 1,P )
END IF
IF ( LJOBB ) THEN
IF ( LSAME( FACT, 'N' ) .OR. LSAME( FACT, 'C' ) ) THEN
READ ( NIN, FMT = * )
$ ( ( R(I,J), J = 1,M ), I = 1,M )
ELSE
READ ( NIN, FMT = * )
$ ( ( R(I,J), J = 1,M ), I = 1,P )
END IF
IF ( LSAME( JOBL, 'N' ) )
$ READ ( NIN, FMT = * )
$ ( ( L(I,J), J = 1,M ), I = 1,N )
END IF
* Find the solution matrix X.
CALL SB02OD( DICO, JOBB, FACT, UPLO, JOBL, SORT, N, M, P,
$ A, LDA, B, LDB, Q, LDQ, R, LDR, L, LDL,
$ RCOND, X, LDX, ALFAR, ALFAI, BETA, S, LDS,
$ T, LDT, U, LDU, TOL, IWORK, DWORK, LDWORK,
$ BWORK, INFO )
*
IF ( INFO.NE.0 ) THEN
WRITE ( NOUT, FMT = 99998 ) INFO
ELSE
WRITE ( NOUT, FMT = 99997 )
DO 20 I = 1, N
WRITE ( NOUT, FMT = 99996 ) ( X(I,J), J = 1,N )
20 CONTINUE
END IF
END IF
END IF
END IF
STOP
*
99999 FORMAT (' SB02OD EXAMPLE PROGRAM RESULTS',/1X)
99998 FORMAT (' INFO on exit from SB02OD = ',I2)
99997 FORMAT (' The solution matrix X is ')
99996 FORMAT (20(1X,F8.4))
99995 FORMAT (/' N is out of range.',/' N = ',I5)
99994 FORMAT (/' M is out of range.',/' M = ',I5)
99993 FORMAT (/' P is out of range.',/' P = ',I5)
END
|
