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derrtsqr.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 DERRTSQR( 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 DOUBLE 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 Denver
49*> \author NAG Ltd.
50*
51*> \ingroup double_lin
52*
53* =====================================================================
54 SUBROUTINE derrtsqr( 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 DOUBLE PRECISION A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
77 $ C( NMAX, NMAX ), TAU(NMAX*2)
78* ..
79* .. External Subroutines ..
80 EXTERNAL alaesm, chkxer, dgeqr,
81 $ dgemqr, dgelq, dgemlq
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* DGEQR
115*
116 srnamt = 'DGEQR'
117 infot = 1
118 CALL dgeqr( -1, 0, a, 1, tau, 1, w, 1, info )
119 CALL chkxer( 'DGEQR', infot, nout, lerr, ok )
120 infot = 2
121 CALL dgeqr( 0, -1, a, 1, tau, 1, w, 1, info )
122 CALL chkxer( 'DGEQR', infot, nout, lerr, ok )
123 infot = 4
124 CALL dgeqr( 1, 1, a, 0, tau, 1, w, 1, info )
125 CALL chkxer( 'DGEQR', infot, nout, lerr, ok )
126 infot = 6
127 CALL dgeqr( 3, 2, a, 3, tau, 1, w, 1, info )
128 CALL chkxer( 'DGEQR', infot, nout, lerr, ok )
129 infot = 8
130 CALL dgeqr( 3, 2, a, 3, tau, 7, w, 0, info )
131 CALL chkxer( 'DGEQR', infot, nout, lerr, ok )
132*
133* DLATSQR
134*
135 mb = 1
136 nb = 1
137 srnamt = 'DLATSQR'
138 infot = 1
139 CALL dlatsqr( -1, 0, mb, nb, a, 1, tau, 1, w, 1, info )
140 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
141 infot = 2
142 CALL dlatsqr( 1, 2, mb, nb, a, 1, tau, 1, w, 1, info )
143 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
144 CALL dlatsqr( 0, -1, mb, nb, a, 1, tau, 1, w, 1, info )
145 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
146 infot = 3
147 CALL dlatsqr( 2, 1, -1, nb, a, 2, tau, 1, w, 1, info )
148 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
149 infot = 4
150 CALL dlatsqr( 2, 1, mb, 2, a, 2, tau, 1, w, 1, info )
151 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
152 infot = 6
153 CALL dlatsqr( 2, 1, mb, nb, a, 1, tau, 1, w, 1, info )
154 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
155 infot = 8
156 CALL dlatsqr( 2, 1, mb, nb, a, 2, tau, 0, w, 1, info )
157 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
158 infot = 10
159 CALL dlatsqr( 2, 1, mb, nb, a, 2, tau, 2, w, 0, info )
160 CALL chkxer( 'DLATSQR', infot, nout, lerr, ok )
161*
162* DGEMQR
163*
164 tau(1)=1
165 tau(2)=1
166 tau(3)=1
167 tau(4)=1
168 srnamt = 'DGEMQR'
169 nb=1
170 infot = 1
171 CALL dgemqr( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
172 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
173 infot = 2
174 CALL dgemqr( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
175 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
176 infot = 3
177 CALL dgemqr( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
178 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
179 infot = 4
180 CALL dgemqr( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
181 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
182 infot = 5
183 CALL dgemqr( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
184 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
185 infot = 5
186 CALL dgemqr( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
187 CALL chkxer( 'dgemqr', INFOT, NOUT, LERR, OK )
188 INFOT = 7
189 CALL DGEMQR( 'l', 'n', 2, 1, 0, A, 0, TAU, 1, C, 1, W, 1,INFO)
190 CALL CHKXER( 'dgemqr', infot, nout, lerr, ok )
191 infot = 9
192 CALL dgemqr( 'R', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
193 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
194 infot = 9
195 CALL dgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
196 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
197 infot = 11
198 CALL dgemqr( 'L', 'N', 2, 1, 1, a, 2, tau, 6, c, 0, w, 1,info)
199 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
200 infot = 13
201 CALL dgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
202 CALL chkxer( 'DGEMQR', infot, nout, lerr, ok )
203*
204* DGELQ
205*
206 srnamt = 'dgelq'
207 INFOT = 1
208 CALL DGELQ( -1, 0, A, 1, TAU, 1, W, 1, INFO )
209 CALL CHKXER( 'dgelq', INFOT, NOUT, LERR, OK )
210 INFOT = 2
211 CALL DGELQ( 0, -1, A, 1, TAU, 1, W, 1, INFO )
212 CALL CHKXER( 'dgelq', INFOT, NOUT, LERR, OK )
213 INFOT = 4
214 CALL DGELQ( 1, 1, A, 0, TAU, 1, W, 1, INFO )
215 CALL CHKXER( 'dgelq', INFOT, NOUT, LERR, OK )
216 INFOT = 6
217 CALL DGELQ( 2, 3, A, 3, TAU, 1, W, 1, INFO )
218 CALL CHKXER( 'dgelq', INFOT, NOUT, LERR, OK )
219 INFOT = 8
220 CALL DGELQ( 2, 3, A, 3, TAU, 7, W, 0, INFO )
221 CALL CHKXER( 'dgelq', INFOT, NOUT, LERR, OK )
222*
223* DLASWLQ
224*
225 MB = 1
226 NB = 1
227 SRNAMT = 'dlaswlq'
228 INFOT = 1
229 CALL DLASWLQ( -1, 0, MB, NB, A, 1, TAU, 1, W, 1, INFO )
230 CALL CHKXER( 'dlaswlq', INFOT, NOUT, LERR, OK )
231 INFOT = 2
232 CALL DLASWLQ( 2, 1, MB, NB, A, 1, TAU, 1, W, 1, INFO )
233 CALL CHKXER( 'dlaswlq', INFOT, NOUT, LERR, OK )
234 CALL DLASWLQ( 0, -1, MB, NB, A, 1, TAU, 1, W, 1, INFO )
235 CALL CHKXER( 'dlaswlq', INFOT, NOUT, LERR, OK )
236 INFOT = 3
237 CALL DLASWLQ( 1, 2, -1, NB, A, 1, TAU, 1, W, 1, INFO )
238 CALL CHKXER( 'dlaswlq', INFOT, NOUT, LERR, OK )
239 CALL DLASWLQ( 1, 1, 2, NB, A, 1, TAU, 1, W, 1, INFO )
240 CALL CHKXER( 'dlaswlq', infot, nout, lerr, ok )
241 infot = 4
242 CALL dlaswlq( 1, 2, mb, -1, a, 1, tau, 1, w, 1, info )
243 CALL chkxer( 'DLASWLQ', infot, nout, lerr, ok )
244 infot = 6
245 CALL dlaswlq( 1, 2, mb, nb, a, 0, tau, 1, w, 1, info )
246 CALL chkxer( 'dlaswlq', INFOT, NOUT, LERR, OK )
247 INFOT = 8
248 CALL DLASWLQ( 1, 2, MB, NB, A, 1, TAU, 0, W, 1, INFO )
249 CALL CHKXER( 'dlaswlq', INFOT, NOUT, LERR, OK )
250 INFOT = 10
251 CALL DLASWLQ( 1, 2, MB, NB, A, 1, TAU, 1, W, 0, INFO )
252 CALL CHKXER( 'dlaswlq', INFOT, NOUT, LERR, OK )
253*
254* DGEMLQ
255*
256 TAU(1)=1
257 TAU(2)=1
258 SRNAMT = 'dgemlq'
259 NB=1
260 INFOT = 1
261 CALL DGEMLQ( '/', 'n', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
262 CALL chkxer( 'DGEMLQ', infot, nout, lerr, ok )
263 infot = 2
264 CALL dgemlq( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
265 CALL chkxer( 'DGEMLQ', infot, nout, lerr, ok )
266 infot = 3
267 CALL dgemlq( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
268 CALL chkxer( 'DGEMLQ', infot, nout, lerr, ok )
269 infot = 4
270 CALL dgemlq( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
271 CALL chkxer( 'DGEMLQ', infot, nout, lerr, ok )
272 infot = 5
273 CALL dgemlq( 'l', 'n', 0, 0, -1, A, 1, TAU, 1, C, 1, W,1,INFO)
274 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
275 INFOT = 5
276 CALL DGEMLQ( 'r', 'n', 0, 0, -1, A, 1, TAU, 1, C, 1, W,1,INFO)
277 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
278 INFOT = 7
279 CALL DGEMLQ( 'l', 'n', 1, 2, 0, A, 0, TAU, 1, C, 1, W, 1,INFO)
280 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
281 INFOT = 9
282 CALL DGEMLQ( 'r', 'n', 2, 2, 1, A, 1, TAU, 0, C, 1, W, 1,INFO)
283 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
284 INFOT = 9
285 CALL DGEMLQ( 'l', 'n', 2, 2, 1, A, 1, TAU, 0, C, 1, W, 1,INFO)
286 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
287 INFOT = 11
288 CALL DGEMLQ( 'l', 'n', 1, 2, 1, A, 1, TAU, 6, C, 0, W, 1,INFO)
289 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
290 INFOT = 13
291 CALL DGEMLQ( 'l', 'n', 2, 2, 1, A, 2, TAU, 6, C, 2, W, 0,INFO)
292 CALL CHKXER( 'dgemlq', INFOT, NOUT, LERR, OK )
293*
294* Print a summary line.
295*
296 CALL ALAESM( PATH, OK, NOUT )
297*
298 RETURN
299*
300* End of DERRTSQR
301*
302 END
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3196
dgelq
subroutine dgelq(m, n, a, lda, t, tsize, work, lwork, info)
DGELQ
Definition dgelq.f:172
dgemlq
subroutine dgemlq(side, trans, m, n, k, a, lda, t, tsize, c, ldc, work, lwork, info)
DGEMLQ
Definition dgemlq.f:171
dgemqr
subroutine dgemqr(side, trans, m, n, k, a, lda, t, tsize, c, ldc, work, lwork, info)
DGEMQR
Definition dgemqr.f:172
dgeqr
subroutine dgeqr(m, n, a, lda, t, tsize, work, lwork, info)
DGEQR
Definition dgeqr.f:174
dlaswlq
subroutine dlaswlq(m, n, mb, nb, a, lda, t, ldt, work, lwork, info)
DLASWLQ
Definition dlaswlq.f:164
dlatsqr
subroutine dlatsqr(m, n, mb, nb, a, lda, t, ldt, work, lwork, info)
DLATSQR
Definition dlatsqr.f:166
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
derrtsqr
subroutine derrtsqr(path, nunit)
DERRTSQR
Definition derrtsqr.f:55