LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ serrql()

subroutine serrql ( character*3  PATH,
integer  NUNIT 
)

SERRQL

Purpose:
 SERRQL tests the error exits for the REAL 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 serrql.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  REAL A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
76  $ W( NMAX ), X( NMAX )
77 * ..
78 * .. External Subroutines ..
79  EXTERNAL alaesm, chkxer, sgeql2, sgeqlf, sgeqls, sorg2l,
80  $ sorgql, sorm2l, sormql
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 real
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. / real( i+j )
104  af( i, j ) = 1. / real( i+j )
105  10 CONTINUE
106  b( j ) = 0.
107  w( j ) = 0.
108  x( j ) = 0.
109  20 CONTINUE
110  ok = .true.
111 *
112 * Error exits for QL factorization
113 *
114 * SGEQLF
115 *
116  srnamt = 'SGEQLF'
117  infot = 1
118  CALL sgeqlf( -1, 0, a, 1, b, w, 1, info )
119  CALL chkxer( 'SGEQLF', infot, nout, lerr, ok )
120  infot = 2
121  CALL sgeqlf( 0, -1, a, 1, b, w, 1, info )
122  CALL chkxer( 'SGEQLF', infot, nout, lerr, ok )
123  infot = 4
124  CALL sgeqlf( 2, 1, a, 1, b, w, 1, info )
125  CALL chkxer( 'SGEQLF', infot, nout, lerr, ok )
126  infot = 7
127  CALL sgeqlf( 1, 2, a, 1, b, w, 1, info )
128  CALL chkxer( 'SGEQLF', infot, nout, lerr, ok )
129 *
130 * SGEQL2
131 *
132  srnamt = 'SGEQL2'
133  infot = 1
134  CALL sgeql2( -1, 0, a, 1, b, w, info )
135  CALL chkxer( 'SGEQL2', infot, nout, lerr, ok )
136  infot = 2
137  CALL sgeql2( 0, -1, a, 1, b, w, info )
138  CALL chkxer( 'SGEQL2', infot, nout, lerr, ok )
139  infot = 4
140  CALL sgeql2( 2, 1, a, 1, b, w, info )
141  CALL chkxer( 'SGEQL2', infot, nout, lerr, ok )
142 *
143 * SGEQLS
144 *
145  srnamt = 'SGEQLS'
146  infot = 1
147  CALL sgeqls( -1, 0, 0, a, 1, x, b, 1, w, 1, info )
148  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
149  infot = 2
150  CALL sgeqls( 0, -1, 0, a, 1, x, b, 1, w, 1, info )
151  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
152  infot = 2
153  CALL sgeqls( 1, 2, 0, a, 1, x, b, 1, w, 1, info )
154  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
155  infot = 3
156  CALL sgeqls( 0, 0, -1, a, 1, x, b, 1, w, 1, info )
157  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
158  infot = 5
159  CALL sgeqls( 2, 1, 0, a, 1, x, b, 2, w, 1, info )
160  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
161  infot = 8
162  CALL sgeqls( 2, 1, 0, a, 2, x, b, 1, w, 1, info )
163  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
164  infot = 10
165  CALL sgeqls( 1, 1, 2, a, 1, x, b, 1, w, 1, info )
166  CALL chkxer( 'SGEQLS', infot, nout, lerr, ok )
167 *
168 * SORGQL
169 *
170  srnamt = 'SORGQL'
171  infot = 1
172  CALL sorgql( -1, 0, 0, a, 1, x, w, 1, info )
173  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
174  infot = 2
175  CALL sorgql( 0, -1, 0, a, 1, x, w, 1, info )
176  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
177  infot = 2
178  CALL sorgql( 1, 2, 0, a, 1, x, w, 2, info )
179  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
180  infot = 3
181  CALL sorgql( 0, 0, -1, a, 1, x, w, 1, info )
182  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
183  infot = 3
184  CALL sorgql( 1, 1, 2, a, 1, x, w, 1, info )
185  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
186  infot = 5
187  CALL sorgql( 2, 1, 0, a, 1, x, w, 1, info )
188  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
189  infot = 8
190  CALL sorgql( 2, 2, 0, a, 2, x, w, 1, info )
191  CALL chkxer( 'SORGQL', infot, nout, lerr, ok )
192 *
193 * SORG2L
194 *
195  srnamt = 'SORG2L'
196  infot = 1
197  CALL sorg2l( -1, 0, 0, a, 1, x, w, info )
198  CALL chkxer( 'SORG2L', infot, nout, lerr, ok )
199  infot = 2
200  CALL sorg2l( 0, -1, 0, a, 1, x, w, info )
201  CALL chkxer( 'SORG2L', infot, nout, lerr, ok )
202  infot = 2
203  CALL sorg2l( 1, 2, 0, a, 1, x, w, info )
204  CALL chkxer( 'SORG2L', infot, nout, lerr, ok )
205  infot = 3
206  CALL sorg2l( 0, 0, -1, a, 1, x, w, info )
207  CALL chkxer( 'SORG2L', infot, nout, lerr, ok )
208  infot = 3
209  CALL sorg2l( 2, 1, 2, a, 2, x, w, info )
210  CALL chkxer( 'SORG2L', infot, nout, lerr, ok )
211  infot = 5
212  CALL sorg2l( 2, 1, 0, a, 1, x, w, info )
213  CALL chkxer( 'SORG2L', infot, nout, lerr, ok )
214 *
215 * SORMQL
216 *
217  srnamt = 'SORMQL'
218  infot = 1
219  CALL sormql( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
220  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
221  infot = 2
222  CALL sormql( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, 1, info )
223  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
224  infot = 3
225  CALL sormql( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, 1, info )
226  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
227  infot = 4
228  CALL sormql( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, 1, info )
229  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
230  infot = 5
231  CALL sormql( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, 1, info )
232  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
233  infot = 5
234  CALL sormql( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, 1, info )
235  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
236  infot = 5
237  CALL sormql( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, 1, info )
238  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
239  infot = 7
240  CALL sormql( 'L', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
241  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
242  infot = 7
243  CALL sormql( 'R', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
244  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
245  infot = 10
246  CALL sormql( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, 1, info )
247  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
248  infot = 12
249  CALL sormql( 'L', 'N', 1, 2, 0, a, 1, x, af, 1, w, 1, info )
250  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
251  infot = 12
252  CALL sormql( 'R', 'N', 2, 1, 0, a, 1, x, af, 2, w, 1, info )
253  CALL chkxer( 'SORMQL', infot, nout, lerr, ok )
254 *
255 * SORM2L
256 *
257  srnamt = 'SORM2L'
258  infot = 1
259  CALL sorm2l( '/', 'N', 0, 0, 0, a, 1, x, af, 1, w, info )
260  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
261  infot = 2
262  CALL sorm2l( 'L', '/', 0, 0, 0, a, 1, x, af, 1, w, info )
263  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
264  infot = 3
265  CALL sorm2l( 'L', 'N', -1, 0, 0, a, 1, x, af, 1, w, info )
266  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
267  infot = 4
268  CALL sorm2l( 'L', 'N', 0, -1, 0, a, 1, x, af, 1, w, info )
269  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
270  infot = 5
271  CALL sorm2l( 'L', 'N', 0, 0, -1, a, 1, x, af, 1, w, info )
272  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
273  infot = 5
274  CALL sorm2l( 'L', 'N', 0, 1, 1, a, 1, x, af, 1, w, info )
275  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
276  infot = 5
277  CALL sorm2l( 'R', 'N', 1, 0, 1, a, 1, x, af, 1, w, info )
278  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
279  infot = 7
280  CALL sorm2l( 'L', 'N', 2, 1, 0, a, 1, x, af, 2, w, info )
281  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
282  infot = 7
283  CALL sorm2l( 'R', 'N', 1, 2, 0, a, 1, x, af, 1, w, info )
284  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
285  infot = 10
286  CALL sorm2l( 'L', 'N', 2, 1, 0, a, 2, x, af, 1, w, info )
287  CALL chkxer( 'SORM2L', infot, nout, lerr, ok )
288 *
289 * Print a summary line.
290 *
291  CALL alaesm( path, ok, nout )
292 *
293  RETURN
294 *
295 * End of SERRQL
296 *
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
subroutine sgeql2(M, N, A, LDA, TAU, WORK, INFO)
SGEQL2 computes the QL factorization of a general rectangular matrix using an unblocked algorithm.
Definition: sgeql2.f:123
subroutine sgeqlf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
SGEQLF
Definition: sgeqlf.f:138
subroutine sorm2l(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, INFO)
SORM2L multiplies a general matrix by the orthogonal matrix from a QL factorization determined by sge...
Definition: sorm2l.f:159
subroutine sorg2l(M, N, K, A, LDA, TAU, WORK, INFO)
SORG2L generates all or part of the orthogonal matrix Q from a QL factorization determined by sgeqlf ...
Definition: sorg2l.f:114
subroutine sormql(SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, LWORK, INFO)
SORMQL
Definition: sormql.f:168
subroutine sorgql(M, N, K, A, LDA, TAU, WORK, LWORK, INFO)
SORGQL
Definition: sorgql.f:128
subroutine sgeqls(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
SGEQLS
Definition: sgeqls.f:122
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