LAPACK  3.10.1
LAPACK: Linear Algebra PACKage
serrtsqr.f
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1 *> \brief \b DERRTSQR
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 SERRTSQR( 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 *> DERRTSQR tests the error exits for the REAL 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 Denver
49 *> \author NAG Ltd.
50 *
51 *> \ingroup double_lin
52 *
53 * =====================================================================
54  SUBROUTINE serrtsqr( 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, MB, NB
74 * ..
75 * .. Local Arrays ..
76  REAL A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
77  $ C( NMAX, NMAX ), TAU(NMAX*2)
78 * ..
79 * .. External Subroutines ..
80  EXTERNAL alaesm, chkxer, sgeqr,
81  $ sgemqr, sgelq, sgemlq
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 real
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 / real( i+j )
105  c( i, j ) = 1.d0 / real( i+j )
106  t( i, j ) = 1.d0 / real( 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 * SGEQR
115 *
116  srnamt = 'SGEQR'
117  infot = 1
118  CALL sgeqr( -1, 0, a, 1, tau, 1, w, 1, info )
119  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
120  infot = 2
121  CALL sgeqr( 0, -1, a, 1, tau, 1, w, 1, info )
122  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
123  infot = 4
124  CALL sgeqr( 1, 1, a, 0, tau, 1, w, 1, info )
125  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
126  infot = 6
127  CALL sgeqr( 3, 2, a, 3, tau, 1, w, 1, info )
128  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
129  infot = 8
130  CALL sgeqr( 3, 2, a, 3, tau, 7, w, 0, info )
131  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
132 *
133 * SLATSQR
134 *
135  mb = 1
136  nb = 1
137  srnamt = 'SLATSQR'
138  infot = 1
139  CALL slatsqr( -1, 0, mb, nb, a, 1, tau, 1, w, 1, info )
140  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
141  infot = 2
142  CALL slatsqr( 1, 2, mb, nb, a, 1, tau, 1, w, 1, info )
143  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
144  CALL slatsqr( 0, -1, mb, nb, a, 1, tau, 1, w, 1, info )
145  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
146  infot = 3
147  CALL slatsqr( 2, 1, -1, nb, a, 2, tau, 1, w, 1, info )
148  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
149  infot = 4
150  CALL slatsqr( 2, 1, mb, 2, a, 2, tau, 1, w, 1, info )
151  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
152  infot = 6
153  CALL slatsqr( 2, 1, mb, nb, a, 1, tau, 1, w, 1, info )
154  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
155  infot = 8
156  CALL slatsqr( 2, 1, mb, nb, a, 2, tau, 0, w, 1, info )
157  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
158  infot = 10
159  CALL slatsqr( 2, 1, mb, nb, a, 2, tau, 2, w, 0, info )
160  CALL chkxer( 'SLATSQR', infot, nout, lerr, ok )
161 *
162 * SGEMQR
163 *
164  tau(1)=1
165  tau(2)=1
166  tau(3)=1
167  tau(4)=1
168  srnamt = 'SGEMQR'
169  nb=1
170  infot = 1
171  CALL sgemqr( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
172  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
173  infot = 2
174  CALL sgemqr( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
175  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
176  infot = 3
177  CALL sgemqr( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
178  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
179  infot = 4
180  CALL sgemqr( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
181  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
182  infot = 5
183  CALL sgemqr( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
184  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
185  infot = 5
186  CALL sgemqr( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
187  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
188  infot = 7
189  CALL sgemqr( 'L', 'N', 2, 1, 0, a, 0, tau, 1, c, 1, w, 1,info)
190  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
191  infot = 9
192  CALL sgemqr( 'R', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
193  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
194  infot = 9
195  CALL sgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
196  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
197  infot = 11
198  CALL sgemqr( 'L', 'N', 2, 1, 1, a, 2, tau, 6, c, 0, w, 1,info)
199  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
200  infot = 13
201  CALL sgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
202  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
203 *
204 * SGELQ
205 *
206  srnamt = 'SGELQ'
207  infot = 1
208  CALL sgelq( -1, 0, a, 1, tau, 1, w, 1, info )
209  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
210  infot = 2
211  CALL sgelq( 0, -1, a, 1, tau, 1, w, 1, info )
212  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
213  infot = 4
214  CALL sgelq( 1, 1, a, 0, tau, 1, w, 1, info )
215  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
216  infot = 6
217  CALL sgelq( 2, 3, a, 3, tau, 1, w, 1, info )
218  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
219  infot = 8
220  CALL sgelq( 2, 3, a, 3, tau, 7, w, 0, info )
221  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
222 *
223 * SLASWLQ
224 *
225  mb = 1
226  nb = 1
227  srnamt = 'SLASWLQ'
228  infot = 1
229  CALL slaswlq( -1, 0, mb, nb, a, 1, tau, 1, w, 1, info )
230  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
231  infot = 2
232  CALL slaswlq( 2, 1, mb, nb, a, 1, tau, 1, w, 1, info )
233  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
234  CALL slaswlq( 0, -1, mb, nb, a, 1, tau, 1, w, 1, info )
235  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
236  infot = 3
237  CALL slaswlq( 1, 2, -1, nb, a, 1, tau, 1, w, 1, info )
238  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
239  CALL slaswlq( 1, 1, 2, nb, a, 1, tau, 1, w, 1, info )
240  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
241  infot = 4
242  CALL slaswlq( 1, 2, mb, -1, a, 1, tau, 1, w, 1, info )
243  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
244  infot = 6
245  CALL slaswlq( 1, 2, mb, nb, a, 0, tau, 1, w, 1, info )
246  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
247  infot = 8
248  CALL slaswlq( 1, 2, mb, nb, a, 1, tau, 0, w, 1, info )
249  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
250  infot = 10
251  CALL slaswlq( 1, 2, mb, nb, a, 1, tau, 1, w, 0, info )
252  CALL chkxer( 'SLASWLQ', infot, nout, lerr, ok )
253 *
254 * SGEMLQ
255 *
256  tau(1)=1
257  tau(2)=1
258  srnamt = 'SGEMLQ'
259  nb=1
260  infot = 1
261  CALL sgemlq( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
262  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
263  infot = 2
264  CALL sgemlq( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
265  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
266  infot = 3
267  CALL sgemlq( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
268  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
269  infot = 4
270  CALL sgemlq( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
271  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
272  infot = 5
273  CALL sgemlq( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
274  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
275  infot = 5
276  CALL sgemlq( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
277  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
278  infot = 7
279  CALL sgemlq( 'L', 'N', 1, 2, 0, a, 0, tau, 1, c, 1, w, 1,info)
280  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
281  infot = 9
282  CALL sgemlq( 'R', 'N', 2, 2, 1, a, 1, tau, 0, c, 1, w, 1,info)
283  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
284  infot = 9
285  CALL sgemlq( 'L', 'N', 2, 2, 1, a, 1, tau, 0, c, 1, w, 1,info)
286  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
287  infot = 11
288  CALL sgemlq( 'L', 'N', 1, 2, 1, a, 1, tau, 6, c, 0, w, 1,info)
289  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
290  infot = 13
291  CALL sgemlq( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
292  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
293 *
294 * Print a summary line.
295 *
296  CALL alaesm( path, ok, nout )
297 *
298  RETURN
299 *
300 * End of SERRTSQR
301 *
302  END
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
subroutine serrtsqr(PATH, NUNIT)
DERRTSQR
Definition: serrtsqr.f:55
subroutine sgelq(M, N, A, LDA, T, TSIZE, WORK, LWORK, INFO)
SGELQ
Definition: sgelq.f:172
subroutine sgemlq(SIDE, TRANS, M, N, K, A, LDA, T, TSIZE, C, LDC, WORK, LWORK, INFO)
SGEMLQ
Definition: sgemlq.f:170
subroutine sgemqr(SIDE, TRANS, M, N, K, A, LDA, T, TSIZE, C, LDC, WORK, LWORK, INFO)
SGEMQR
Definition: sgemqr.f:172
subroutine sgeqr(M, N, A, LDA, T, TSIZE, WORK, LWORK, INFO)
SGEQR
Definition: sgeqr.f:174
subroutine slaswlq(M, N, MB, NB, A, LDA, T, LDT, WORK, LWORK, INFO)
SLASWLQ
Definition: slaswlq.f:164
subroutine slatsqr(M, N, MB, NB, A, LDA, T, LDT, WORK, LWORK, INFO)
SLATSQR
Definition: slatsqr.f:166