LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ derrql()

subroutine derrql ( character*3  path,
integer  nunit 
)

DERRQL

Purpose:
 DERRQL tests the error exits for the DOUBLE PRECISION routines
 that use the QL 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 derrql.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, dgeql2, dgeqlf, dgeqls, dorg2l,
80 $ dorgql, dorm2l, dormql
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 QL factorization
113*
114* DGEQLF
115*
116 srnamt = 'DGEQLF'
117 infot = 1
118 CALL dgeqlf( -1, 0, a, 1, b, w, 1, info )
119 CALL chkxer( 'DGEQLF', infot, nout, lerr, ok )
120 infot = 2
121 CALL dgeqlf( 0, -1, a, 1, b, w, 1, info )
122 CALL chkxer( 'DGEQLF', infot, nout, lerr, ok )
123 infot = 4
124 CALL dgeqlf( 2, 1, a, 1, b, w, 1, info )
125 CALL chkxer( 'DGEQLF', infot, nout, lerr, ok )
126 infot = 7
127 CALL dgeqlf( 1, 2, a, 1, b, w, 1, info )
128 CALL chkxer( 'DGEQLF', infot, nout, lerr, ok )
129*
130* DGEQL2
131*
132 srnamt = 'DGEQL2'
133 infot = 1
134 CALL dgeql2( -1, 0, a, 1, b, w, info )
135 CALL chkxer( 'DGEQL2', infot, nout, lerr, ok )
136 infot = 2
137 CALL dgeql2( 0, -1, a, 1, b, w, info )
138 CALL chkxer( 'DGEQL2', infot, nout, lerr, ok )
139 infot = 4
140 CALL dgeql2( 2, 1, a, 1, b, w, info )
141 CALL chkxer( 'DGEQL2', infot, nout, lerr, ok )
142*
143* DGEQLS
144*
145 srnamt = 'DGEQLS'
146 infot = 1
147 CALL dgeqls( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
148 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
149 infot = 2
150 CALL dgeqls( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
151 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
152 infot = 2
153 CALL dgeqls( 1, 2, 0, a, 1, x, b, 1, w, 1, info )
154 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
155 infot = 3
156 CALL dgeqls( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
157 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
158 infot = 5
159 CALL dgeqls( 2, 1, 0, a, 1, x, b, 2, w, 1, info )
160 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
161 infot = 8
162 CALL dgeqls( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
163 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
164 infot = 10
165 CALL dgeqls( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
166 CALL chkxer( 'DGEQLS', infot, nout, lerr, ok )
167*
168* DORGQL
169*
170 srnamt = 'DORGQL'
171 infot = 1
172 CALL dorgql( -1, 0, 0, a, 1, x, w, 1, info )
173 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
174 infot = 2
175 CALL dorgql( 0, -1, 0, a, 1, x, w, 1, info )
176 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
177 infot = 2
178 CALL dorgql( 1, 2, 0, a, 1, x, w, 2, info )
179 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
180 infot = 3
181 CALL dorgql( 0, 0, -1, a, 1, x, w, 1, info )
182 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
183 infot = 3
184 CALL dorgql( 1, 1, 2, a, 1, x, w, 1, info )
185 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
186 infot = 5
187 CALL dorgql( 2, 1, 0, a, 1, x, w, 1, info )
188 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
189 infot = 8
190 CALL dorgql( 2, 2, 0, a, 2, x, w, 1, info )
191 CALL chkxer( 'DORGQL', infot, nout, lerr, ok )
192*
193* DORG2L
194*
195 srnamt = 'DORG2L'
196 infot = 1
197 CALL dorg2l( -1, 0, 0, a, 1, x, w, info )
198 CALL chkxer( 'DORG2L', infot, nout, lerr, ok )
199 infot = 2
200 CALL dorg2l( 0, -1, 0, a, 1, x, w, info )
201 CALL chkxer( 'DORG2L', infot, nout, lerr, ok )
202 infot = 2
203 CALL dorg2l( 1, 2, 0, a, 1, x, w, info )
204 CALL chkxer( 'DORG2L', infot, nout, lerr, ok )
205 infot = 3
206 CALL dorg2l( 0, 0, -1, a, 1, x, w, info )
207 CALL chkxer( 'DORG2L', infot, nout, lerr, ok )
208 infot = 3
209 CALL dorg2l( 2, 1, 2, a, 2, x, w, info )
210 CALL chkxer( 'DORG2L', infot, nout, lerr, ok )
211 infot = 5
212 CALL dorg2l( 2, 1, 0, a, 1, x, w, info )
213 CALL chkxer( 'DORG2L', infot, nout, lerr, ok )
214*
215* DORMQL
216*
217 srnamt = 'DORMQL'
218 infot = 1
219 CALL dormql( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
220 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
221 infot = 2
222 CALL dormql( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
224 infot = 3
225 CALL dormql( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
226 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
227 infot = 4
228 CALL dormql( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, 1, info )
229 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
230 infot = 5
231 CALL dormql( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, 1, info )
232 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
233 infot = 5
234 CALL dormql( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, 1, info )
235 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
236 infot = 5
237 CALL dormql( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
238 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
239 infot = 7
240 CALL dormql( 'L', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
241 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
242 infot = 7
243 CALL dormql( 'R', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
244 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
245 infot = 10
246 CALL dormql( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, 1, info )
247 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
248 infot = 12
249 CALL dormql( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
250 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
251 infot = 12
252 CALL dormql( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
253 CALL chkxer( 'DORMQL', infot, nout, lerr, ok )
254*
255* DORM2L
256*
257 srnamt = 'DORM2L'
258 infot = 1
259 CALL dorm2l( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
260 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
261 infot = 2
262 CALL dorm2l( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
263 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
264 infot = 3
265 CALL dorm2l( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
266 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
267 infot = 4
268 CALL dorm2l( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
269 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
270 infot = 5
271 CALL dorm2l( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
272 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
273 infot = 5
274 CALL dorm2l( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
275 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
276 infot = 5
277 CALL dorm2l( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
278 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
279 infot = 7
280 CALL dorm2l( 'L', 'N', 2, 1, 0, a, 1, x, af, 2, w, info )
281 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
282 infot = 7
283 CALL dorm2l( 'R', 'N', 1, 2, 0, a, 1, x, af, 1, w, info )
284 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
285 infot = 10
286 CALL dorm2l( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, info )
287 CALL chkxer( 'DORM2L', infot, nout, lerr, ok )
288*
289* Print a summary line.
290*
291 CALL alaesm( path, ok, nout )
292*
293 RETURN
294*
295* End of DERRQL
296*
alaesm
subroutine alaesm(path, ok, nout)
ALAESM
Definition alaesm.f:63
chkxer
subroutine chkxer(srnamt, infot, nout, lerr, ok)
Definition cblat2.f:3224
dgeqls
subroutine dgeqls(m, n, nrhs, a, lda, tau, b, ldb, work, lwork, info)
DGEQLS
Definition dgeqls.f:122
dgeql2
subroutine dgeql2(m, n, a, lda, tau, work, info)
DGEQL2 computes the QL factorization of a general rectangular matrix using an unblocked algorithm.
Definition dgeql2.f:123
dgeqlf
subroutine dgeqlf(m, n, a, lda, tau, work, lwork, info)
DGEQLF
Definition dgeqlf.f:138
dorg2l
subroutine dorg2l(m, n, k, a, lda, tau, work, info)
DORG2L generates all or part of the orthogonal matrix Q from a QL factorization determined by sgeqlf ...
Definition dorg2l.f:114
dorgql
subroutine dorgql(m, n, k, a, lda, tau, work, lwork, info)
DORGQL
Definition dorgql.f:128
dorm2l
subroutine dorm2l(side, trans, m, n, k, a, lda, tau, c, ldc, work, info)
DORM2L multiplies a general matrix by the orthogonal matrix from a QL factorization determined by sge...
Definition dorm2l.f:159
dormql
subroutine dormql(side, trans, m, n, k, a, lda, tau, c, ldc, work, lwork, info)
DORMQL
Definition dormql.f:167
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