LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ 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.
Date
December 2016

Definition at line 57 of file derrrq.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, dgerq2, dgerqf, dgerqs, dorgr2,
83  $ dorgrq, dormr2, dormrq
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 RQ factorization
116 *
117 * DGERQF
118 *
119  srnamt = 'DGERQF'
120  infot = 1
121  CALL dgerqf( -1, 0, a, 1, b, w, 1, info )
122  CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
123  infot = 2
124  CALL dgerqf( 0, -1, a, 1, b, w, 1, info )
125  CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
126  infot = 4
127  CALL dgerqf( 2, 1, a, 1, b, w, 2, info )
128  CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
129  infot = 7
130  CALL dgerqf( 2, 1, a, 2, b, w, 1, info )
131  CALL chkxer( 'DGERQF', infot, nout, lerr, ok )
132 *
133 * DGERQ2
134 *
135  srnamt = 'DGERQ2'
136  infot = 1
137  CALL dgerq2( -1, 0, a, 1, b, w, info )
138  CALL chkxer( 'DGERQ2', infot, nout, lerr, ok )
139  infot = 2
140  CALL dgerq2( 0, -1, a, 1, b, w, info )
141  CALL chkxer( 'DGERQ2', infot, nout, lerr, ok )
142  infot = 4
143  CALL dgerq2( 2, 1, a, 1, b, w, info )
144  CALL chkxer( 'DGERQ2', infot, nout, lerr, ok )
145 *
146 * DGERQS
147 *
148  srnamt = 'DGERQS'
149  infot = 1
150  CALL dgerqs( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
151  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
152  infot = 2
153  CALL dgerqs( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
154  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
155  infot = 2
156  CALL dgerqs( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
157  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
158  infot = 3
159  CALL dgerqs( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
160  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
161  infot = 5
162  CALL dgerqs( 2, 2, 0, a, 1, x, b, 2, w, 1, info )
163  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
164  infot = 8
165  CALL dgerqs( 2, 2, 0, a, 2, x, b, 1, w, 1, info )
166  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
167  infot = 10
168  CALL dgerqs( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
169  CALL chkxer( 'DGERQS', infot, nout, lerr, ok )
170 *
171 * DORGRQ
172 *
173  srnamt = 'DORGRQ'
174  infot = 1
175  CALL dorgrq( -1, 0, 0, a, 1, x, w, 1, info )
176  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
177  infot = 2
178  CALL dorgrq( 0, -1, 0, a, 1, x, w, 1, info )
179  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
180  infot = 2
181  CALL dorgrq( 2, 1, 0, a, 2, x, w, 2, info )
182  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
183  infot = 3
184  CALL dorgrq( 0, 0, -1, a, 1, x, w, 1, info )
185  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
186  infot = 3
187  CALL dorgrq( 1, 2, 2, a, 1, x, w, 1, info )
188  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
189  infot = 5
190  CALL dorgrq( 2, 2, 0, a, 1, x, w, 2, info )
191  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
192  infot = 8
193  CALL dorgrq( 2, 2, 0, a, 2, x, w, 1, info )
194  CALL chkxer( 'DORGRQ', infot, nout, lerr, ok )
195 *
196 * DORGR2
197 *
198  srnamt = 'DORGR2'
199  infot = 1
200  CALL dorgr2( -1, 0, 0, a, 1, x, w, info )
201  CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
202  infot = 2
203  CALL dorgr2( 0, -1, 0, a, 1, x, w, info )
204  CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
205  infot = 2
206  CALL dorgr2( 2, 1, 0, a, 2, x, w, info )
207  CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
208  infot = 3
209  CALL dorgr2( 0, 0, -1, a, 1, x, w, info )
210  CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
211  infot = 3
212  CALL dorgr2( 1, 2, 2, a, 2, x, w, info )
213  CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
214  infot = 5
215  CALL dorgr2( 2, 2, 0, a, 1, x, w, info )
216  CALL chkxer( 'DORGR2', infot, nout, lerr, ok )
217 *
218 * DORMRQ
219 *
220  srnamt = 'DORMRQ'
221  infot = 1
222  CALL dormrq( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
224  infot = 2
225  CALL dormrq( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
226  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
227  infot = 3
228  CALL dormrq( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
229  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
230  infot = 4
231  CALL dormrq( 'L', 'N', 0, -1, 0, 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, 0, -1, a, 1, x, af, 1, w, 1, info )
235  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
236  infot = 5
237  CALL dormrq( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, 1, info )
238  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
239  infot = 5
240  CALL dormrq( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
241  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
242  infot = 7
243  CALL dormrq( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, 1, info )
244  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
245  infot = 7
246  CALL dormrq( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, 1, info )
247  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
248  infot = 10
249  CALL dormrq( 'L', 'N', 2, 1, 0, a, 1, x, af, 1, w, 1, info )
250  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
251  infot = 12
252  CALL dormrq( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
253  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
254  infot = 12
255  CALL dormrq( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
256  CALL chkxer( 'DORMRQ', infot, nout, lerr, ok )
257 *
258 * DORMR2
259 *
260  srnamt = 'DORMR2'
261  infot = 1
262  CALL dormr2( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
263  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
264  infot = 2
265  CALL dormr2( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
266  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
267  infot = 3
268  CALL dormr2( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
269  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
270  infot = 4
271  CALL dormr2( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
272  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
273  infot = 5
274  CALL dormr2( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
275  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
276  infot = 5
277  CALL dormr2( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
278  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
279  infot = 5
280  CALL dormr2( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
281  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
282  infot = 7
283  CALL dormr2( 'L', 'N', 2, 1, 2, a, 1, x, af, 2, w, info )
284  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
285  infot = 7
286  CALL dormr2( 'R', 'N', 1, 2, 2, a, 1, x, af, 1, w, info )
287  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
288  infot = 10
289  CALL dormr2( 'L', 'N', 2, 1, 0, a, 1, x, af, 1, w, info )
290  CALL chkxer( 'DORMR2', infot, nout, lerr, ok )
291 *
292 * Print a summary line.
293 *
294  CALL alaesm( path, ok, nout )
295 *
296  RETURN
297 *
298 * End of DERRRQ
299 *
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:125
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:65
subroutine dormrq(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, LWORK, INFO)
DORMRQ
Definition: dormrq.f:169
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3199
subroutine dorgrq(M, N, K, A, LDA, TAU, WORK, LWORK, INFO)
DORGRQ
Definition: dorgrq.f:130
subroutine dgerqf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
DGERQF
Definition: dgerqf.f:140
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:161
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:116
subroutine dgerqs(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
DGERQS
Definition: dgerqs.f:124
Here is the call graph for this function:
Here is the caller graph for this function: