LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ 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 *
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
subroutine dgeqls(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
DGEQLS
Definition: dgeqls.f:122
subroutine dgeqlf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
DGEQLF
Definition: dgeqlf.f:138
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
subroutine dormql(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, LWORK, INFO)
DORMQL
Definition: dormql.f:167
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
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
subroutine dorgql(M, N, K, A, LDA, TAU, WORK, LWORK, INFO)
DORGQL
Definition: dorgql.f:128
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