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derrlq.f
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1*> \brief \b DERRLQ
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 DERRLQ( 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*> DERRLQ tests the error exits for the DOUBLE PRECISION routines
25*> that use the LQ 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 derrlq( PATH, NUNIT )
55*
56* -- LAPACK test routine --
57* -- LAPACK is a software package provided by Univ. of Tennessee, --
58* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
59*
60* .. Scalar Arguments ..
61 CHARACTER*3 PATH
62 INTEGER NUNIT
63* ..
64*
65* =====================================================================
66*
67* .. Parameters ..
68 INTEGER NMAX
69 parameter( nmax = 2 )
70* ..
71* .. Local Scalars ..
72 INTEGER I, INFO, J
73* ..
74* .. Local Arrays ..
75 DOUBLE PRECISION A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
76 $ W( NMAX ), X( NMAX )
77* ..
78* .. External Subroutines ..
79 EXTERNAL alaesm, chkxer, dgelq2, dgelqf, dgelqs, dorgl2,
80 $ dorglq, dorml2, dormlq
81* ..
82* .. Scalars in Common ..
83 LOGICAL LERR, OK
84 CHARACTER*32 SRNAMT
85 INTEGER INFOT, NOUT
86* ..
87* .. Common blocks ..
88 COMMON / infoc / infot, nout, ok, lerr
89 COMMON / srnamc / srnamt
90* ..
91* .. Intrinsic Functions ..
92 INTRINSIC dble
93* ..
94* .. Executable Statements ..
95*
96 nout = nunit
97 WRITE( nout, fmt = * )
98*
99* Set the variables to innocuous values.
100*
101 DO 20 j = 1, nmax
102 DO 10 i = 1, nmax
103 a( i, j ) = 1.d0 / dble( i+j )
104 af( i, j ) = 1.d0 / dble( i+j )
105 10 CONTINUE
106 b( j ) = 0.d0
107 w( j ) = 0.d0
108 x( j ) = 0.d0
109 20 CONTINUE
110 ok = .true.
111*
112* Error exits for LQ factorization
113*
114* DGELQF
115*
116 srnamt = 'DGELQF'
117 infot = 1
118 CALL dgelqf( -1, 0, a, 1, b, w, 1, info )
119 CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
120 infot = 2
121 CALL dgelqf( 0, -1, a, 1, b, w, 1, info )
122 CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
123 infot = 4
124 CALL dgelqf( 2, 1, a, 1, b, w, 2, info )
125 CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
126 infot = 7
127 CALL dgelqf( 2, 1, a, 2, b, w, 1, info )
128 CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
129*
130* DGELQ2
131*
132 srnamt = 'DGELQ2'
133 infot = 1
134 CALL dgelq2( -1, 0, a, 1, b, w, info )
135 CALL chkxer( 'DGELQ2', infot, nout, lerr, ok )
136 infot = 2
137 CALL dgelq2( 0, -1, a, 1, b, w, info )
138 CALL chkxer( 'DGELQ2', infot, nout, lerr, ok )
139 infot = 4
140 CALL dgelq2( 2, 1, a, 1, b, w, info )
141 CALL chkxer( 'DGELQ2', infot, nout, lerr, ok )
142*
143* DGELQS
144*
145 srnamt = 'DGELQS'
146 infot = 1
147 CALL dgelqs( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
148 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
149 infot = 2
150 CALL dgelqs( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
151 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
152 infot = 2
153 CALL dgelqs( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
154 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
155 infot = 3
156 CALL dgelqs( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
157 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
158 infot = 5
159 CALL dgelqs( 2, 2, 0, a, 1, x, b, 2, w, 1, info )
160 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
161 infot = 8
162 CALL dgelqs( 1, 2, 0, a, 1, x, b, 1, w, 1, info )
163 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
164 infot = 10
165 CALL dgelqs( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
166 CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
167*
168* DORGLQ
169*
170 srnamt = 'DORGLQ'
171 infot = 1
172 CALL dorglq( -1, 0, 0, a, 1, x, w, 1, info )
173 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
174 infot = 2
175 CALL dorglq( 0, -1, 0, a, 1, x, w, 1, info )
176 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
177 infot = 2
178 CALL dorglq( 2, 1, 0, a, 2, x, w, 2, info )
179 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
180 infot = 3
181 CALL dorglq( 0, 0, -1, a, 1, x, w, 1, info )
182 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
183 infot = 3
184 CALL dorglq( 1, 1, 2, a, 1, x, w, 1, info )
185 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
186 infot = 5
187 CALL dorglq( 2, 2, 0, a, 1, x, w, 2, info )
188 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
189 infot = 8
190 CALL dorglq( 2, 2, 0, a, 2, x, w, 1, info )
191 CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
192*
193* DORGL2
194*
195 srnamt = 'DORGL2'
196 infot = 1
197 CALL dorgl2( -1, 0, 0, a, 1, x, w, info )
198 CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
199 infot = 2
200 CALL dorgl2( 0, -1, 0, a, 1, x, w, info )
201 CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
202 infot = 2
203 CALL dorgl2( 2, 1, 0, a, 2, x, w, info )
204 CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
205 infot = 3
206 CALL dorgl2( 0, 0, -1, a, 1, x, w, info )
207 CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
208 infot = 3
209 CALL dorgl2( 1, 1, 2, a, 1, x, w, info )
210 CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
211 infot = 5
212 CALL dorgl2( 2, 2, 0, a, 1, x, w, info )
213 CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
214*
215* DORMLQ
216*
217 srnamt = 'DORMLQ'
218 infot = 1
219 CALL dormlq( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
220 CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
221 infot = 2
222 CALL dormlq( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223 CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
224 infot = 3
225 CALL dormlq( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
226 CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
227 infot = 4
228 CALL dormlq( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, 1, info )
229 CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
230 infot = 5
231 CALL dormlq( 'l', 'n', 0, 0, -1, A, 1, X, AF, 1, W, 1, INFO )
232 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
233 INFOT = 5
234 CALL DORMLQ( 'l', 'n', 0, 1, 1, A, 1, X, AF, 1, W, 1, INFO )
235 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
236 INFOT = 5
237 CALL DORMLQ( 'r', 'n', 1, 0, 1, A, 1, X, AF, 1, W, 1, INFO )
238 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
239 INFOT = 7
240 CALL DORMLQ( 'l', 'n', 2, 0, 2, A, 1, X, AF, 2, W, 1, INFO )
241 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
242 INFOT = 7
243 CALL DORMLQ( 'r', 'n', 0, 2, 2, A, 1, X, AF, 1, W, 1, INFO )
244 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
245 INFOT = 10
246 CALL DORMLQ( 'l', 'n', 2, 1, 0, A, 2, X, AF, 1, W, 1, INFO )
247 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
248 INFOT = 12
249 CALL DORMLQ( 'l', 'n', 1, 2, 0, A, 1, X, AF, 1, W, 1, INFO )
250 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
251 INFOT = 12
252 CALL DORMLQ( 'r', 'n', 2, 1, 0, A, 1, X, AF, 2, W, 1, INFO )
253 CALL CHKXER( 'dormlq', INFOT, NOUT, LERR, OK )
254*
255* DORML2
256*
257 SRNAMT = 'dorml2'
258 INFOT = 1
259 CALL DORML2( '/', 'n', 0, 0, 0, A, 1, X, AF, 1, W, INFO )
260 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
261 INFOT = 2
262 CALL DORML2( 'l', '/', 0, 0, 0, A, 1, X, AF, 1, W, INFO )
263 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
264 INFOT = 3
265 CALL DORML2( 'l', 'n', -1, 0, 0, A, 1, X, AF, 1, W, INFO )
266 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
267 INFOT = 4
268 CALL DORML2( 'l', 'n', 0, -1, 0, A, 1, X, AF, 1, W, INFO )
269 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
270 INFOT = 5
271 CALL DORML2( 'l', 'n', 0, 0, -1, A, 1, X, AF, 1, W, INFO )
272 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
273 INFOT = 5
274 CALL DORML2( 'l', 'n', 0, 1, 1, A, 1, X, AF, 1, W, INFO )
275 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
276 INFOT = 5
277 CALL DORML2( 'r', 'n', 1, 0, 1, A, 1, X, AF, 1, W, INFO )
278 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
279 INFOT = 7
280 CALL DORML2( 'l', 'n', 2, 1, 2, A, 1, X, AF, 2, W, INFO )
281 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
282 INFOT = 7
283 CALL DORML2( 'r', 'n', 1, 2, 2, A, 1, X, AF, 1, W, INFO )
284 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
285 INFOT = 10
286 CALL DORML2( 'l', 'n', 2, 1, 0, A, 2, X, AF, 1, W, INFO )
287 CALL CHKXER( 'dorml2', INFOT, NOUT, LERR, OK )
288*
289* Print a summary line.
290*
291 CALL ALAESM( PATH, OK, NOUT )
292*
293 RETURN
294*
295* End of DERRLQ
296*
297 END
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3196
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
dgelq2
subroutine dgelq2(m, n, a, lda, tau, work, info)
DGELQ2 computes the LQ factorization of a general rectangular matrix using an unblocked algorithm.
Definition dgelq2.f:129
dgelqf
subroutine dgelqf(m, n, a, lda, tau, work, lwork, info)
DGELQF
Definition dgelqf.f:143
dorml2
subroutine dorml2(side, trans, m, n, k, a, lda, tau, c, ldc, work, info)
DORML2 multiplies a general matrix by the orthogonal matrix from a LQ factorization determined by sge...
Definition dorml2.f:159
dorgl2
subroutine dorgl2(m, n, k, a, lda, tau, work, info)
DORGL2
Definition dorgl2.f:113
dormlq
subroutine dormlq(side, trans, m, n, k, a, lda, tau, c, ldc, work, lwork, info)
DORMLQ
Definition dormlq.f:167
dorglq
subroutine dorglq(m, n, k, a, lda, tau, work, lwork, info)
DORGLQ
Definition dorglq.f:127
dgelqs
subroutine dgelqs(m, n, nrhs, a, lda, tau, b, ldb, work, lwork, info)
DGELQS
Definition dgelqs.f:121
derrlq
subroutine derrlq(path, nunit)
DERRLQ
Definition derrlq.f:55