LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ derrrq()

subroutine derrrq ( character*3  path,
integer  nunit 
)

DERRRQ

Purpose:
 DERRRQ tests the error exits for the DOUBLE PRECISION routines
 that use the RQ decomposition of a general matrix.
Parameters
[in]PATH
          PATH is CHARACTER*3
          The LAPACK path name for the routines to be tested.
[in]NUNIT
          NUNIT is INTEGER
          The unit number for output.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.

Definition at line 54 of file derrrq.f.

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, dgerq2, dgerqf, dgerqs, dorgr2,
80 $ dorgrq, dormr2, dormrq
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 RQ factorization
113*
114* DGERQF
115*
116 srnamt = 'DGERQF'
117 infot = 1
118 CALL dgerqf( -1, 0, a, 1, b, w, 1, info )
119 CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
120 infot = 2
121 CALL dgerqf( 0, -1, a, 1, b, w, 1, info )
122 CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
123 infot = 4
124 CALL dgerqf( 2, 1, a, 1, b, w, 2, info )
125 CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
126 infot = 7
127 CALL dgerqf( 2, 1, a, 2, b, w, 1, info )
128 CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
129*
130* DGERQ2
131*
132 srnamt = 'DGERQ2'
133 infot = 1
134 CALL dgerq2( -1, 0, a, 1, b, w, info )
135 CALL chkxer( 'DGERQ2', infot, nout, lerr, ok )
136 infot = 2
137 CALL dgerq2( 0, -1, a, 1, b, w, info )
138 CALL chkxer( 'DGERQ2', infot, nout, lerr, ok )
139 infot = 4
140 CALL dgerq2( 2, 1, a, 1, b, w, info )
141 CALL chkxer( 'DGERQ2', infot, nout, lerr, ok )
142*
143* DGERQS
144*
145 srnamt = 'DGERQS'
146 infot = 1
147 CALL dgerqs( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
148 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
149 infot = 2
150 CALL dgerqs( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
151 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
152 infot = 2
153 CALL dgerqs( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
154 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
155 infot = 3
156 CALL dgerqs( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
157 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
158 infot = 5
159 CALL dgerqs( 2, 2, 0, a, 1, x, b, 2, w, 1, info )
160 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
161 infot = 8
162 CALL dgerqs( 2, 2, 0, a, 2, x, b, 1, w, 1, info )
163 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
164 infot = 10
165 CALL dgerqs( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
166 CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
167*
168* DORGRQ
169*
170 srnamt = 'DORGRQ'
171 infot = 1
172 CALL dorgrq( -1, 0, 0, a, 1, x, w, 1, info )
173 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
174 infot = 2
175 CALL dorgrq( 0, -1, 0, a, 1, x, w, 1, info )
176 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
177 infot = 2
178 CALL dorgrq( 2, 1, 0, a, 2, x, w, 2, info )
179 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
180 infot = 3
181 CALL dorgrq( 0, 0, -1, a, 1, x, w, 1, info )
182 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
183 infot = 3
184 CALL dorgrq( 1, 2, 2, a, 1, x, w, 1, info )
185 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
186 infot = 5
187 CALL dorgrq( 2, 2, 0, a, 1, x, w, 2, info )
188 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
189 infot = 8
190 CALL dorgrq( 2, 2, 0, a, 2, x, w, 1, info )
191 CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
192*
193* DORGR2
194*
195 srnamt = 'DORGR2'
196 infot = 1
197 CALL dorgr2( -1, 0, 0, a, 1, x, w, info )
198 CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
199 infot = 2
200 CALL dorgr2( 0, -1, 0, a, 1, x, w, info )
201 CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
202 infot = 2
203 CALL dorgr2( 2, 1, 0, a, 2, x, w, info )
204 CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
205 infot = 3
206 CALL dorgr2( 0, 0, -1, a, 1, x, w, info )
207 CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
208 infot = 3
209 CALL dorgr2( 1, 2, 2, a, 2, x, w, info )
210 CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
211 infot = 5
212 CALL dorgr2( 2, 2, 0, a, 1, x, w, info )
213 CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
214*
215* DORMRQ
216*
217 srnamt = 'DORMRQ'
218 infot = 1
219 CALL dormrq( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
220 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
221 infot = 2
222 CALL dormrq( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
224 infot = 3
225 CALL dormrq( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
226 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
227 infot = 4
228 CALL dormrq( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, 1, info )
229 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
230 infot = 5
231 CALL dormrq( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, 1, info )
232 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
233 infot = 5
234 CALL dormrq( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, 1, info )
235 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
236 infot = 5
237 CALL dormrq( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
238 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
239 infot = 7
240 CALL dormrq( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, 1, info )
241 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
242 infot = 7
243 CALL dormrq( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, 1, info )
244 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
245 infot = 10
246 CALL dormrq( 'L', 'N', 2, 1, 0, a, 1, x, af, 1, w, 1, info )
247 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
248 infot = 12
249 CALL dormrq( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
250 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
251 infot = 12
252 CALL dormrq( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
253 CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
254*
255* DORMR2
256*
257 srnamt = 'DORMR2'
258 infot = 1
259 CALL dormr2( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
260 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
261 infot = 2
262 CALL dormr2( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
263 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
264 infot = 3
265 CALL dormr2( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
266 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
267 infot = 4
268 CALL dormr2( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
269 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
270 infot = 5
271 CALL dormr2( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
272 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
273 infot = 5
274 CALL dormr2( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
275 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
276 infot = 5
277 CALL dormr2( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
278 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
279 infot = 7
280 CALL dormr2( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, info )
281 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
282 infot = 7
283 CALL dormr2( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, info )
284 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
285 infot = 10
286 CALL dormr2( 'L', 'N', 2, 1, 0, a, 1, x, af, 1, w, info )
287 CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
288*
289* Print a summary line.
290*
291 CALL alaesm( path, ok, nout )
292*
293 RETURN
294*
295* End of DERRRQ
296*
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3224
dgerqs
subroutine dgerqs(m, n, nrhs, a, lda, tau, b, ldb, work, lwork, info)
DGERQS
Definition dgerqs.f:122
dgerq2
subroutine dgerq2(m, n, a, lda, tau, work, info)
DGERQ2 computes the RQ factorization of a general rectangular matrix using an unblocked algorithm.
Definition dgerq2.f:123
dgerqf
subroutine dgerqf(m, n, a, lda, tau, work, lwork, info)
DGERQF
Definition dgerqf.f:139
dorgr2
subroutine dorgr2(m, n, k, a, lda, tau, work, info)
DORGR2 generates all or part of the orthogonal matrix Q from an RQ factorization determined by sgerqf...
Definition dorgr2.f:114
dorgrq
subroutine dorgrq(m, n, k, a, lda, tau, work, lwork, info)
DORGRQ
Definition dorgrq.f:128
dormr2
subroutine dormr2(side, trans, m, n, k, a, lda, tau, c, ldc, work, info)
DORMR2 multiplies a general matrix by the orthogonal matrix from a RQ factorization determined by sge...
Definition dormr2.f:159
dormrq
subroutine dormrq(side, trans, m, n, k, a, lda, tau, c, ldc, work, lwork, info)
DORMRQ
Definition dormrq.f:167
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