File: serrorhr_col.f

package info (click to toggle)
lapack 3.11.0-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 76,136 kB
  • sloc: fortran: 605,191; ansic: 197,715; makefile: 5,018; f90: 1,379; sh: 326; python: 266
file content (161 lines) | stat: -rw-r--r-- 4,130 bytes parent folder | download
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
*> \brief \b SERRORHR_COL
*
*  =========== DOCUMENTATION ===========
*
* Online html documentation available at
*            http://www.netlib.org/lapack/explore-html/
*
*  Definition:
*  ===========
*
*       SUBROUTINE SERRORHR_COL( PATH, NUNIT )
*
*       .. Scalar Arguments ..
*       CHARACTER*3        PATH
*       INTEGER            NUNIT
*       ..
*
*
*> \par Purpose:
*  =============
*>
*> \verbatim
*>
*> SERRORHR_COL tests the error exits for SORHR_COL that does
*> Householder reconstruction from the output of tall-skinny
*> factorization SLATSQR.
*> \endverbatim
*
*  Arguments:
*  ==========
*
*> \param[in] PATH
*> \verbatim
*>          PATH is CHARACTER*3
*>          The LAPACK path name for the routines to be tested.
*> \endverbatim
*>
*> \param[in] NUNIT
*> \verbatim
*>          NUNIT is INTEGER
*>          The unit number for output.
*> \endverbatim
*
*  Authors:
*  ========
*
*> \author Univ. of Tennessee
*> \author Univ. of California Berkeley
*> \author Univ. of Colorado Denver
*> \author NAG Ltd.
*
*> \ingroup singlr_lin
*
*  =====================================================================
      SUBROUTINE SERRORHR_COL( PATH, NUNIT )
      IMPLICIT NONE
*
*  -- LAPACK test routine --
*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
*
*     .. Scalar Arguments ..
      CHARACTER(LEN=3)   PATH
      INTEGER            NUNIT
*     ..
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER            NMAX
      PARAMETER          ( NMAX = 2 )
*     ..
*     .. Local Scalars ..
      INTEGER            I, INFO, J
*     ..
*     .. Local Arrays ..
      REAL               A( NMAX, NMAX ), T( NMAX, NMAX ), D(NMAX)
*     ..
*     .. External Subroutines ..
      EXTERNAL           ALAESM, CHKXER, SORHR_COL
*     ..
*     .. Scalars in Common ..
      LOGICAL            LERR, OK
      CHARACTER(LEN=32)  SRNAMT
      INTEGER            INFOT, NOUT
*     ..
*     .. Common blocks ..
      COMMON             / INFOC / INFOT, NOUT, OK, LERR
      COMMON             / SRNAMC / SRNAMT
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          REAL
*     ..
*     .. Executable Statements ..
*
      NOUT = NUNIT
      WRITE( NOUT, FMT = * )
*
*     Set the variables to innocuous values.
*
      DO J = 1, NMAX
         DO I = 1, NMAX
            A( I, J ) = 1.E+0 / REAL( I+J )
            T( I, J ) = 1.E+0 / REAL( I+J )
         END DO
         D( J ) = 0.E+0
      END DO
      OK = .TRUE.
*
*     Error exits for Householder reconstruction
*
*     SORHR_COL
*
      SRNAMT = 'SORHR_COL'
*
      INFOT = 1
      CALL SORHR_COL( -1, 0, 1, A, 1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      INFOT = 2
      CALL SORHR_COL( 0, -1, 1, A, 1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
      CALL SORHR_COL( 1, 2, 1, A, 1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      INFOT = 3
      CALL SORHR_COL( 0, 0, -1, A, 1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      CALL SORHR_COL( 0, 0, 0, A, 1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      INFOT = 5
      CALL SORHR_COL( 0, 0, 1, A, -1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      CALL SORHR_COL( 0, 0, 1, A, 0, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      CALL SORHR_COL( 2, 0, 1, A, 1, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      INFOT = 7
      CALL SORHR_COL( 0, 0, 1, A, 1, T, -1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      CALL SORHR_COL( 0, 0, 1, A, 1, T, 0, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
      CALL SORHR_COL( 4, 3, 2, A, 4, T, 1, D, INFO )
      CALL CHKXER( 'SORHR_COL', INFOT, NOUT, LERR, OK )
*
*     Print a summary line.
*
      CALL ALAESM( PATH, OK, NOUT )
*
      RETURN
*
*     End of SERRORHR_COL
*
      END