LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ derrlq()

subroutine derrlq ( character*3  PATH,
integer  NUNIT 
)

DERRLQ

Purpose:
 DERRLQ tests the error exits for the DOUBLE PRECISION routines
 that use the LQ 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.
Date
December 2016

Definition at line 57 of file derrlq.f.

57 *
58 * -- LAPACK test routine (version 3.7.0) --
59 * -- LAPACK is a software package provided by Univ. of Tennessee, --
60 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
61 * December 2016
62 *
63 * .. Scalar Arguments ..
64  CHARACTER*3 path
65  INTEGER nunit
66 * ..
67 *
68 * =====================================================================
69 *
70 * .. Parameters ..
71  INTEGER nmax
72  parameter( nmax = 2 )
73 * ..
74 * .. Local Scalars ..
75  INTEGER i, info, j
76 * ..
77 * .. Local Arrays ..
78  DOUBLE PRECISION a( nmax, nmax ), af( nmax, nmax ), b( nmax ),
79  $ w( nmax ), x( nmax )
80 * ..
81 * .. External Subroutines ..
82  EXTERNAL alaesm, chkxer, dgelq2, dgelqf, dgelqs, dorgl2,
83  $ dorglq, dorml2, dormlq
84 * ..
85 * .. Scalars in Common ..
86  LOGICAL lerr, ok
87  CHARACTER*32 srnamt
88  INTEGER infot, nout
89 * ..
90 * .. Common blocks ..
91  COMMON / infoc / infot, nout, ok, lerr
92  COMMON / srnamc / srnamt
93 * ..
94 * .. Intrinsic Functions ..
95  INTRINSIC dble
96 * ..
97 * .. Executable Statements ..
98 *
99  nout = nunit
100  WRITE( nout, fmt = * )
101 *
102 * Set the variables to innocuous values.
103 *
104  DO 20 j = 1, nmax
105  DO 10 i = 1, nmax
106  a( i, j ) = 1.d0 / dble( i+j )
107  af( i, j ) = 1.d0 / dble( i+j )
108  10 CONTINUE
109  b( j ) = 0.d0
110  w( j ) = 0.d0
111  x( j ) = 0.d0
112  20 CONTINUE
113  ok = .true.
114 *
115 * Error exits for LQ factorization
116 *
117 * DGELQF
118 *
119  srnamt = 'DGELQF'
120  infot = 1
121  CALL dgelqf( -1, 0, a, 1, b, w, 1, info )
122  CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
123  infot = 2
124  CALL dgelqf( 0, -1, a, 1, b, w, 1, info )
125  CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
126  infot = 4
127  CALL dgelqf( 2, 1, a, 1, b, w, 2, info )
128  CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
129  infot = 7
130  CALL dgelqf( 2, 1, a, 2, b, w, 1, info )
131  CALL chkxer( 'DGELQF', infot, nout, lerr, ok )
132 *
133 * DGELQ2
134 *
135  srnamt = 'DGELQ2'
136  infot = 1
137  CALL dgelq2( -1, 0, a, 1, b, w, info )
138  CALL chkxer( 'DGELQ2', infot, nout, lerr, ok )
139  infot = 2
140  CALL dgelq2( 0, -1, a, 1, b, w, info )
141  CALL chkxer( 'DGELQ2', infot, nout, lerr, ok )
142  infot = 4
143  CALL dgelq2( 2, 1, a, 1, b, w, info )
144  CALL chkxer( 'DGELQ2', infot, nout, lerr, ok )
145 *
146 * DGELQS
147 *
148  srnamt = 'DGELQS'
149  infot = 1
150  CALL dgelqs( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
151  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
152  infot = 2
153  CALL dgelqs( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
154  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
155  infot = 2
156  CALL dgelqs( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
157  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
158  infot = 3
159  CALL dgelqs( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
160  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
161  infot = 5
162  CALL dgelqs( 2, 2, 0, a, 1, x, b, 2, w, 1, info )
163  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
164  infot = 8
165  CALL dgelqs( 1, 2, 0, a, 1, x, b, 1, w, 1, info )
166  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
167  infot = 10
168  CALL dgelqs( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
169  CALL chkxer( 'DGELQS', infot, nout, lerr, ok )
170 *
171 * DORGLQ
172 *
173  srnamt = 'DORGLQ'
174  infot = 1
175  CALL dorglq( -1, 0, 0, a, 1, x, w, 1, info )
176  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
177  infot = 2
178  CALL dorglq( 0, -1, 0, a, 1, x, w, 1, info )
179  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
180  infot = 2
181  CALL dorglq( 2, 1, 0, a, 2, x, w, 2, info )
182  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
183  infot = 3
184  CALL dorglq( 0, 0, -1, a, 1, x, w, 1, info )
185  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
186  infot = 3
187  CALL dorglq( 1, 1, 2, a, 1, x, w, 1, info )
188  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
189  infot = 5
190  CALL dorglq( 2, 2, 0, a, 1, x, w, 2, info )
191  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
192  infot = 8
193  CALL dorglq( 2, 2, 0, a, 2, x, w, 1, info )
194  CALL chkxer( 'DORGLQ', infot, nout, lerr, ok )
195 *
196 * DORGL2
197 *
198  srnamt = 'DORGL2'
199  infot = 1
200  CALL dorgl2( -1, 0, 0, a, 1, x, w, info )
201  CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
202  infot = 2
203  CALL dorgl2( 0, -1, 0, a, 1, x, w, info )
204  CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
205  infot = 2
206  CALL dorgl2( 2, 1, 0, a, 2, x, w, info )
207  CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
208  infot = 3
209  CALL dorgl2( 0, 0, -1, a, 1, x, w, info )
210  CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
211  infot = 3
212  CALL dorgl2( 1, 1, 2, a, 1, x, w, info )
213  CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
214  infot = 5
215  CALL dorgl2( 2, 2, 0, a, 1, x, w, info )
216  CALL chkxer( 'DORGL2', infot, nout, lerr, ok )
217 *
218 * DORMLQ
219 *
220  srnamt = 'DORMLQ'
221  infot = 1
222  CALL dormlq( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
224  infot = 2
225  CALL dormlq( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
226  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
227  infot = 3
228  CALL dormlq( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
229  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
230  infot = 4
231  CALL dormlq( 'L', 'N', 0, -1, 0, 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, 0, -1, a, 1, x, af, 1, w, 1, info )
235  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
236  infot = 5
237  CALL dormlq( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, 1, info )
238  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
239  infot = 5
240  CALL dormlq( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
241  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
242  infot = 7
243  CALL dormlq( 'L', 'N', 2, 0, 2, a, 1, x, af, 2, w, 1, info )
244  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
245  infot = 7
246  CALL dormlq( 'R', 'N', 0, 2, 2, a, 1, x, af, 1, w, 1, info )
247  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
248  infot = 10
249  CALL dormlq( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, 1, info )
250  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
251  infot = 12
252  CALL dormlq( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
253  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
254  infot = 12
255  CALL dormlq( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
256  CALL chkxer( 'DORMLQ', infot, nout, lerr, ok )
257 *
258 * DORML2
259 *
260  srnamt = 'DORML2'
261  infot = 1
262  CALL dorml2( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
263  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
264  infot = 2
265  CALL dorml2( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
266  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
267  infot = 3
268  CALL dorml2( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
269  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
270  infot = 4
271  CALL dorml2( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
272  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
273  infot = 5
274  CALL dorml2( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
275  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
276  infot = 5
277  CALL dorml2( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
278  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
279  infot = 5
280  CALL dorml2( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
281  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
282  infot = 7
283  CALL dorml2( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, info )
284  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
285  infot = 7
286  CALL dorml2( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, info )
287  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
288  infot = 10
289  CALL dorml2( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, info )
290  CALL chkxer( 'DORML2', infot, nout, lerr, ok )
291 *
292 * Print a summary line.
293 *
294  CALL alaesm( path, ok, nout )
295 *
296  RETURN
297 *
298 * End of DERRLQ
299 *
subroutine dorglq(M, N, K, A, LDA, TAU, WORK, LWORK, INFO)
DORGLQ
Definition: dorglq.f:129
subroutine dorgl2(M, N, K, A, LDA, TAU, WORK, INFO)
DORGL2
Definition: dorgl2.f:115
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:65
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:123
subroutine dgelqf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
DGELQF
Definition: dgelqf.f:137
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3199
subroutine dormlq(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, LWORK, INFO)
DORMLQ
Definition: dormlq.f:169
subroutine dgelqs(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
DGELQS
Definition: dgelqs.f:123
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:161
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