LAPACK  3.9.1
LAPACK: Linear Algebra PACKage
zerrtsqr.f
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1 *> \brief \b ZERRTSQR
2 *
3 * =========== DOCUMENTATION ===========
4 *
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
7 *
8 * Definition:
9 * ===========
10 *
11 * SUBROUTINE ZERRTSQR( PATH, NUNIT )
12 *
13 * .. Scalar Arguments ..
14 * CHARACTER*3 PATH
15 * INTEGER NUNIT
16 * ..
17 *
18 *
19 *> \par Purpose:
20 * =============
21 *>
22 *> \verbatim
23 *>
24 *> ZERRTSQR tests the error exits for the ZOUBLE PRECISION routines
25 *> that use the TSQR decomposition of a general matrix.
26 *> \endverbatim
27 *
28 * Arguments:
29 * ==========
30 *
31 *> \param[in] PATH
32 *> \verbatim
33 *> PATH is CHARACTER*3
34 *> The LAPACK path name for the routines to be tested.
35 *> \endverbatim
36 *>
37 *> \param[in] NUNIT
38 *> \verbatim
39 *> NUNIT is INTEGER
40 *> The unit number for output.
41 *> \endverbatim
42 *
43 * Authors:
44 * ========
45 *
46 *> \author Univ. of Tennessee
47 *> \author Univ. of California Berkeley
48 *> \author Univ. of Colorado Zenver
49 *> \author NAG Ltd.
50 *
51 *> \ingroup double_lin
52 *
53 * =====================================================================
54  SUBROUTINE zerrtsqr( PATH, NUNIT )
55  IMPLICIT NONE
56 *
57 * -- LAPACK test routine --
58 * -- LAPACK is a software package provided by Univ. of Tennessee, --
59 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
60 *
61 * .. Scalar Arguments ..
62  CHARACTER*3 PATH
63  INTEGER NUNIT
64 * ..
65 *
66 * =====================================================================
67 *
68 * .. Parameters ..
69  INTEGER NMAX
70  parameter( nmax = 2 )
71 * ..
72 * .. Local Scalars ..
73  INTEGER I, INFO, J, NB
74 * ..
75 * .. Local Arrays ..
76  COMPLEX*16 A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
77  $ C( NMAX, NMAX ), TAU(NMAX)
78 * ..
79 * .. External Subroutines ..
80  EXTERNAL alaesm, chkxer, zgeqr,
81  $ zgemqr, zgelq, zgemlq
82 * ..
83 * .. Scalars in Common ..
84  LOGICAL LERR, OK
85  CHARACTER*32 SRNAMT
86  INTEGER INFOT, NOUT
87 * ..
88 * .. Common blocks ..
89  COMMON / infoc / infot, nout, ok, lerr
90  COMMON / srnamc / srnamt
91 * ..
92 * .. Intrinsic Functions ..
93  INTRINSIC dble
94 * ..
95 * .. Executable Statements ..
96 *
97  nout = nunit
98  WRITE( nout, fmt = * )
99 *
100 * Set the variables to innocuous values.
101 *
102  DO j = 1, nmax
103  DO i = 1, nmax
104  a( i, j ) = 1.d0 / dble( i+j )
105  c( i, j ) = 1.d0 / dble( i+j )
106  t( i, j ) = 1.d0 / dble( i+j )
107  END DO
108  w( j ) = 0.d0
109  END DO
110  ok = .true.
111 *
112 * Error exits for TS factorization
113 *
114 * ZGEQR
115 *
116  srnamt = 'ZGEQR'
117  infot = 1
118  CALL zgeqr( -1, 0, a, 1, tau, 1, w, 1, info )
119  CALL chkxer( 'ZGEQR', infot, nout, lerr, ok )
120  infot = 2
121  CALL zgeqr( 0, -1, a, 1, tau, 1, w, 1, info )
122  CALL chkxer( 'ZGEQR', infot, nout, lerr, ok )
123  infot = 4
124  CALL zgeqr( 1, 1, a, 0, tau, 1, w, 1, info )
125  CALL chkxer( 'ZGEQR', infot, nout, lerr, ok )
126  infot = 6
127  CALL zgeqr( 3, 2, a, 3, tau, 1, w, 1, info )
128  CALL chkxer( 'ZGEQR', infot, nout, lerr, ok )
129  infot = 8
130  CALL zgeqr( 3, 2, a, 3, tau, 8, w, 0, info )
131  CALL chkxer( 'ZGEQR', infot, nout, lerr, ok )
132 *
133 * ZGEMQR
134 *
135  tau(1)=1
136  tau(2)=1
137  srnamt = 'ZGEMQR'
138  nb=1
139  infot = 1
140  CALL zgemqr( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
141  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
142  infot = 2
143  CALL zgemqr( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
144  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
145  infot = 3
146  CALL zgemqr( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
147  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
148  infot = 4
149  CALL zgemqr( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
150  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
151  infot = 5
152  CALL zgemqr( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
153  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
154  infot = 5
155  CALL zgemqr( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
156  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
157  infot = 7
158  CALL zgemqr( 'L', 'N', 2, 1, 0, a, 0, tau, 1, c, 1, w, 1,info)
159  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
160  infot = 9
161  CALL zgemqr( 'R', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
162  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
163  infot = 9
164  CALL zgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
165  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
166  infot = 11
167  CALL zgemqr( 'L', 'N', 2, 1, 1, a, 2, tau, 6, c, 0, w, 1,info)
168  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
169  infot = 13
170  CALL zgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
171  CALL chkxer( 'ZGEMQR', infot, nout, lerr, ok )
172 *
173 * ZGELQ
174 *
175  srnamt = 'ZGELQ'
176  infot = 1
177  CALL zgelq( -1, 0, a, 1, tau, 1, w, 1, info )
178  CALL chkxer( 'ZGELQ', infot, nout, lerr, ok )
179  infot = 2
180  CALL zgelq( 0, -1, a, 1, tau, 1, w, 1, info )
181  CALL chkxer( 'ZGELQ', infot, nout, lerr, ok )
182  infot = 4
183  CALL zgelq( 1, 1, a, 0, tau, 1, w, 1, info )
184  CALL chkxer( 'ZGELQ', infot, nout, lerr, ok )
185  infot = 6
186  CALL zgelq( 2, 3, a, 3, tau, 1, w, 1, info )
187  CALL chkxer( 'ZGELQ', infot, nout, lerr, ok )
188  infot = 8
189  CALL zgelq( 2, 3, a, 3, tau, 8, w, 0, info )
190  CALL chkxer( 'ZGELQ', infot, nout, lerr, ok )
191 *
192 * ZGEMLQ
193 *
194  tau(1)=1
195  tau(2)=1
196  srnamt = 'ZGEMLQ'
197  nb=1
198  infot = 1
199  CALL zgemlq( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
200  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
201  infot = 2
202  CALL zgemlq( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
203  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
204  infot = 3
205  CALL zgemlq( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
206  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
207  infot = 4
208  CALL zgemlq( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
209  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
210  infot = 5
211  CALL zgemlq( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
212  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
213  infot = 5
214  CALL zgemlq( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
215  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
216  infot = 7
217  CALL zgemlq( 'L', 'N', 1, 2, 0, a, 0, tau, 1, c, 1, w, 1,info)
218  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
219  infot = 9
220  CALL zgemlq( 'R', 'N', 2, 2, 1, a, 1, tau, 0, c, 1, w, 1,info)
221  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
222  infot = 9
223  CALL zgemlq( 'L', 'N', 2, 2, 1, a, 1, tau, 0, c, 1, w, 1,info)
224  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
225  infot = 11
226  CALL zgemlq( 'L', 'N', 1, 2, 1, a, 1, tau, 6, c, 0, w, 1,info)
227  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
228  infot = 13
229  CALL zgemlq( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
230  CALL chkxer( 'ZGEMLQ', infot, nout, lerr, ok )
231 *
232 * Print a summary line.
233 *
234  CALL alaesm( path, ok, nout )
235 *
236  RETURN
237 *
238 * End of DERRTSQR
239 *
240  END
chkxer
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
alaesm
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
zerrtsqr
subroutine zerrtsqr(PATH, NUNIT)
ZERRTSQR
Definition: zerrtsqr.f:55
zgelq
subroutine zgelq(M, N, A, LDA, T, TSIZE, WORK, LWORK, INFO)
ZGELQ
Definition: zgelq.f:172
zgemlq
subroutine zgemlq(SIDE, TRANS, M, N, K, A, LDA, T, TSIZE, C, LDC, WORK, LWORK, INFO)
ZGEMLQ
Definition: zgemlq.f:169
zgemqr
subroutine zgemqr(SIDE, TRANS, M, N, K, A, LDA, T, TSIZE, C, LDC, WORK, LWORK, INFO)
ZGEMQR
Definition: zgemqr.f:172
zgeqr
subroutine zgeqr(M, N, A, LDA, T, TSIZE, WORK, LWORK, INFO)
ZGEQR
Definition: zgeqr.f:174