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
|
C
C SPDX-License-Identifier: BSD-3-Clause
C
* SB02MD EXAMPLE PROGRAM TEXT.
*
* .. Parameters ..
INTEGER NIN, NOUT
PARAMETER ( NIN = 5, NOUT = 6 )
INTEGER NMAX
PARAMETER ( NMAX = 20 )
INTEGER LDA, LDG, LDQ, LDS, LDU
PARAMETER ( LDA = NMAX, LDG = NMAX, LDQ = NMAX,
$ LDS = 2*NMAX, LDU = 2*NMAX )
INTEGER LIWORK
PARAMETER ( LIWORK = 2*NMAX )
INTEGER LDWORK
PARAMETER ( LDWORK = 6*NMAX )
* .. Local Scalars ..
DOUBLE PRECISION RCOND
INTEGER I, INFO, J, N
CHARACTER DICO, HINV, SCAL, SORT, UPLO
* .. Local Arrays ..
DOUBLE PRECISION A(LDA,NMAX), DWORK(LDWORK), G(LDG,NMAX),
$ Q(LDQ,NMAX), S(LDS,2*NMAX), U(LDU,2*NMAX),
$ WI(2*NMAX), WR(2*NMAX)
INTEGER IWORK(LIWORK)
LOGICAL BWORK(LIWORK)
* .. External Subroutines ..
EXTERNAL SB02MD
* .. Executable Statements ..
*
WRITE ( NOUT, FMT = 99999 )
* Skip the heading in the data file and read the data.
READ ( NIN, FMT = '()' )
READ ( NIN, FMT = * ) N, DICO, HINV, UPLO, SCAL, 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 )
READ ( NIN, FMT = * ) ( ( Q(I,J), J = 1,N ), I = 1,N )
READ ( NIN, FMT = * ) ( ( G(I,J), J = 1,N ), I = 1,N )
* Find the solution matrix X.
CALL SB02MD( DICO, HINV, UPLO, SCAL, SORT, N, A, LDA, G, LDG,
$ Q, LDQ, RCOND, WR, WI, S, LDS, U, LDU, IWORK,
$ DWORK, LDWORK, BWORK, INFO )
*
IF ( INFO.NE.0 ) THEN
WRITE ( NOUT, FMT = 99998 ) INFO
ELSE
WRITE ( NOUT, FMT = 99997 ) RCOND
DO 20 I = 1, N
WRITE ( NOUT, FMT = 99996 ) ( Q(I,J), J = 1,N )
20 CONTINUE
END IF
END IF
STOP
*
99999 FORMAT (' SB02MD EXAMPLE PROGRAM RESULTS',/1X)
99998 FORMAT (' INFO on exit from SB02MD = ',I2)
99997 FORMAT (' RCOND = ',F4.2,//' The solution matrix X is ')
99996 FORMAT (20(1X,F8.4))
99995 FORMAT (/' N is out of range.',/' N = ',I5)
END
|
