LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
serrsy.f
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1 *> \brief \b SERRSY
2 *
3 * =========== DOCUMENTATION ===========
4 *
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
7 *
8 * Definition:
9 * ===========
10 *
11 * SUBROUTINE SERRSY( PATH, NUNIT )
12 *
13 * .. Scalar Arguments ..
14 * CHARACTER*3 PATH
15 * INTEGER NUNIT
16 * ..
17 *
18 *
19 *> \par Purpose:
20 * =============
21 *>
22 *> \verbatim
23 *>
24 *> SERRSY tests the error exits for the REAL routines
25 *> for symmetric indefinite matrices.
26 *> \endverbatim
27 *
28 * Arguments:
29 * ==========
30 *
31 *> \param[in] PATH
32 *> \verbatim
33 *> PATH is CHARACTER*3
34 *> The LAPACK path name for the routines to be tested.
35 *> \endverbatim
36 *>
37 *> \param[in] NUNIT
38 *> \verbatim
39 *> NUNIT is INTEGER
40 *> The unit number for output.
41 *> \endverbatim
42 *
43 * Authors:
44 * ========
45 *
46 *> \author Univ. of Tennessee
47 *> \author Univ. of California Berkeley
48 *> \author Univ. of Colorado Denver
49 *> \author NAG Ltd.
50 *
51 *> \date November 2015
52 *
53 *> \ingroup single_lin
54 *
55 * =====================================================================
56  SUBROUTINE serrsy( PATH, NUNIT )
57 *
58 * -- LAPACK test routine (version 3.6.0) --
59 * -- LAPACK is a software package provided by Univ. of Tennessee, --
60 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
61 * November 2015
62 *
63 * .. Scalar Arguments ..
64  CHARACTER*3 PATH
65  INTEGER NUNIT
66 * ..
67 *
68 * =====================================================================
69 *
70 * .. Parameters ..
71  INTEGER NMAX
72  parameter ( nmax = 4 )
73 * ..
74 * .. Local Scalars ..
75  CHARACTER*2 C2
76  INTEGER I, INFO, J
77  REAL ANRM, RCOND
78 * ..
79 * .. Local Arrays ..
80  INTEGER IP( nmax ), IW( nmax )
81  REAL A( nmax, nmax ), AF( nmax, nmax ), B( nmax ),
82  $ r1( nmax ), r2( nmax ), w( 3*nmax ), x( nmax )
83 * ..
84 * .. External Functions ..
85  LOGICAL LSAMEN
86  EXTERNAL lsamen
87 * ..
88 * .. External Subroutines ..
89  EXTERNAL alaesm, chkxer, sspcon, ssycon_rook, ssprfs,
90  $ ssptrf, ssptri, ssptrs, ssycon, ssyrfs, ssytf2,
91  $ ssytf2_rook, ssytrf, ssytrf_rook, ssytri,
92  $ ssytri_rook, ssytri2, ssytrs, ssytrs_rook
93 * ..
94 * .. Scalars in Common ..
95  LOGICAL LERR, OK
96  CHARACTER*32 SRNAMT
97  INTEGER INFOT, NOUT
98 * ..
99 * .. Common blocks ..
100  COMMON / infoc / infot, nout, ok, lerr
101  COMMON / srnamc / srnamt
102 * ..
103 * .. Intrinsic Functions ..
104  INTRINSIC real
105 * ..
106 * .. Executable Statements ..
107 *
108  nout = nunit
109  WRITE( nout, fmt = * )
110  c2 = path( 2: 3 )
111 *
112 * Set the variables to innocuous values.
113 *
114  DO 20 j = 1, nmax
115  DO 10 i = 1, nmax
116  a( i, j ) = 1. / REAL( i+j )
117  af( i, j ) = 1. / REAL( i+j )
118  10 CONTINUE
119  b( j ) = 0.
120  r1( j ) = 0.
121  r2( j ) = 0.
122  w( j ) = 0.
123  x( j ) = 0.
124  ip( j ) = j
125  iw( j ) = j
126  20 CONTINUE
127  anrm = 1.0
128  rcond = 1.0
129  ok = .true.
130 *
131  IF( lsamen( 2, c2, 'SY' ) ) THEN
132 *
133 * Test error exits of the routines that use factorization
134 * of a symmetric indefinite matrix with patrial
135 * (Bunch-Kaufman) pivoting.
136 *
137 * SSYTRF
138 *
139  srnamt = 'SSYTRF'
140  infot = 1
141  CALL ssytrf( '/', 0, a, 1, ip, w, 1, info )
142  CALL chkxer( 'SSYTRF', infot, nout, lerr, ok )
143  infot = 2
144  CALL ssytrf( 'U', -1, a, 1, ip, w, 1, info )
145  CALL chkxer( 'SSYTRF', infot, nout, lerr, ok )
146  infot = 4
147  CALL ssytrf( 'U', 2, a, 1, ip, w, 4, info )
148  CALL chkxer( 'SSYTRF', infot, nout, lerr, ok )
149 *
150 * SSYTF2
151 *
152  srnamt = 'SSYTF2'
153  infot = 1
154  CALL ssytf2( '/', 0, a, 1, ip, info )
155  CALL chkxer( 'SSYTF2', infot, nout, lerr, ok )
156  infot = 2
157  CALL ssytf2( 'U', -1, a, 1, ip, info )
158  CALL chkxer( 'SSYTF2', infot, nout, lerr, ok )
159  infot = 4
160  CALL ssytf2( 'U', 2, a, 1, ip, info )
161  CALL chkxer( 'SSYTF2', infot, nout, lerr, ok )
162 *
163 * SSYTRI
164 *
165  srnamt = 'SSYTRI'
166  infot = 1
167  CALL ssytri( '/', 0, a, 1, ip, w, info )
168  CALL chkxer( 'SSYTRI', infot, nout, lerr, ok )
169  infot = 2
170  CALL ssytri( 'U', -1, a, 1, ip, w, info )
171  CALL chkxer( 'SSYTRI', infot, nout, lerr, ok )
172  infot = 4
173  CALL ssytri( 'U', 2, a, 1, ip, w, info )
174  CALL chkxer( 'SSYTRI', infot, nout, lerr, ok )
175 *
176 * SSYTRI2
177 *
178  srnamt = 'SSYTRI2'
179  infot = 1
180  CALL ssytri2( '/', 0, a, 1, ip, w, iw(1), info )
181  CALL chkxer( 'SSYTRI2', infot, nout, lerr, ok )
182  infot = 2
183  CALL ssytri2( 'U', -1, a, 1, ip, w, iw(1), info )
184  CALL chkxer( 'SSYTRI2', infot, nout, lerr, ok )
185  infot = 4
186  CALL ssytri2( 'U', 2, a, 1, ip, w, iw(1), info )
187  CALL chkxer( 'SSYTRI2', infot, nout, lerr, ok )
188 *
189 * SSYTRS
190 *
191  srnamt = 'SSYTRS'
192  infot = 1
193  CALL ssytrs( '/', 0, 0, a, 1, ip, b, 1, info )
194  CALL chkxer( 'SSYTRS', infot, nout, lerr, ok )
195  infot = 2
196  CALL ssytrs( 'U', -1, 0, a, 1, ip, b, 1, info )
197  CALL chkxer( 'SSYTRS', infot, nout, lerr, ok )
198  infot = 3
199  CALL ssytrs( 'U', 0, -1, a, 1, ip, b, 1, info )
200  CALL chkxer( 'SSYTRS', infot, nout, lerr, ok )
201  infot = 5
202  CALL ssytrs( 'U', 2, 1, a, 1, ip, b, 2, info )
203  CALL chkxer( 'SSYTRS', infot, nout, lerr, ok )
204  infot = 8
205  CALL ssytrs( 'U', 2, 1, a, 2, ip, b, 1, info )
206  CALL chkxer( 'SSYTRS', infot, nout, lerr, ok )
207 *
208 * SSYRFS
209 *
210  srnamt = 'SSYRFS'
211  infot = 1
212  CALL ssyrfs( '/', 0, 0, a, 1, af, 1, ip, b, 1, x, 1, r1, r2, w,
213  $ iw, info )
214  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
215  infot = 2
216  CALL ssyrfs( 'U', -1, 0, a, 1, af, 1, ip, b, 1, x, 1, r1, r2,
217  $ w, iw, info )
218  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
219  infot = 3
220  CALL ssyrfs( 'U', 0, -1, a, 1, af, 1, ip, b, 1, x, 1, r1, r2,
221  $ w, iw, info )
222  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
223  infot = 5
224  CALL ssyrfs( 'U', 2, 1, a, 1, af, 2, ip, b, 2, x, 2, r1, r2, w,
225  $ iw, info )
226  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
227  infot = 7
228  CALL ssyrfs( 'U', 2, 1, a, 2, af, 1, ip, b, 2, x, 2, r1, r2, w,
229  $ iw, info )
230  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
231  infot = 10
232  CALL ssyrfs( 'U', 2, 1, a, 2, af, 2, ip, b, 1, x, 2, r1, r2, w,
233  $ iw, info )
234  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
235  infot = 12
236  CALL ssyrfs( 'U', 2, 1, a, 2, af, 2, ip, b, 2, x, 1, r1, r2, w,
237  $ iw, info )
238  CALL chkxer( 'SSYRFS', infot, nout, lerr, ok )
239 *
240 * SSYCON
241 *
242  srnamt = 'SSYCON'
243  infot = 1
244  CALL ssycon( '/', 0, a, 1, ip, anrm, rcond, w, iw, info )
245  CALL chkxer( 'SSYCON', infot, nout, lerr, ok )
246  infot = 2
247  CALL ssycon( 'U', -1, a, 1, ip, anrm, rcond, w, iw, info )
248  CALL chkxer( 'SSYCON', infot, nout, lerr, ok )
249  infot = 4
250  CALL ssycon( 'U', 2, a, 1, ip, anrm, rcond, w, iw, info )
251  CALL chkxer( 'SSYCON', infot, nout, lerr, ok )
252  infot = 6
253  CALL ssycon( 'U', 1, a, 1, ip, -1.0, rcond, w, iw, info )
254  CALL chkxer( 'SSYCON', infot, nout, lerr, ok )
255 *
256  ELSE IF( lsamen( 2, c2, 'SR' ) ) THEN
257 *
258 * Test error exits of the routines that use factorization
259 * of a symmetric indefinite matrix with rook
260 * (bounded Bunch-Kaufman) pivoting.
261 *
262 * SSYTRF_ROOK
263 *
264  srnamt = 'SSYTRF_ROOK'
265  infot = 1
266  CALL ssytrf_rook( '/', 0, a, 1, ip, w, 1, info )
267  CALL chkxer( 'SSYTRF_ROOK', infot, nout, lerr, ok )
268  infot = 2
269  CALL ssytrf_rook( 'U', -1, a, 1, ip, w, 1, info )
270  CALL chkxer( 'SSYTRF_ROOK', infot, nout, lerr, ok )
271  infot = 4
272  CALL ssytrf_rook( 'U', 2, a, 1, ip, w, 4, info )
273  CALL chkxer( 'SSYTRF_ROOK', infot, nout, lerr, ok )
274 *
275 * SSYTF2_ROOK
276 *
277  srnamt = 'SSYTF2_ROOK'
278  infot = 1
279  CALL ssytf2_rook( '/', 0, a, 1, ip, info )
280  CALL chkxer( 'SSYTF2_ROOK', infot, nout, lerr, ok )
281  infot = 2
282  CALL ssytf2_rook( 'U', -1, a, 1, ip, info )
283  CALL chkxer( 'SSYTF2_ROOK', infot, nout, lerr, ok )
284  infot = 4
285  CALL ssytf2_rook( 'U', 2, a, 1, ip, info )
286  CALL chkxer( 'SSYTF2_ROOK', infot, nout, lerr, ok )
287 *
288 * SSYTRI_ROOK
289 *
290  srnamt = 'SSYTRI_ROOK'
291  infot = 1
292  CALL ssytri_rook( '/', 0, a, 1, ip, w, info )
293  CALL chkxer( 'SSYTRI_ROOK', infot, nout, lerr, ok )
294  infot = 2
295  CALL ssytri_rook( 'U', -1, a, 1, ip, w, info )
296  CALL chkxer( 'SSYTRI_ROOK', infot, nout, lerr, ok )
297  infot = 4
298  CALL ssytri_rook( 'U', 2, a, 1, ip, w, info )
299  CALL chkxer( 'SSYTRI_ROOK', infot, nout, lerr, ok )
300 *
301 * SSYTRS_ROOK
302 *
303  srnamt = 'SSYTRS_ROOK'
304  infot = 1
305  CALL ssytrs_rook( '/', 0, 0, a, 1, ip, b, 1, info )
306  CALL chkxer( 'SSYTRS_ROOK', infot, nout, lerr, ok )
307  infot = 2
308  CALL ssytrs_rook( 'U', -1, 0, a, 1, ip, b, 1, info )
309  CALL chkxer( 'SSYTRS_ROOK', infot, nout, lerr, ok )
310  infot = 3
311  CALL ssytrs_rook( 'U', 0, -1, a, 1, ip, b, 1, info )
312  CALL chkxer( 'SSYTRS_ROOK', infot, nout, lerr, ok )
313  infot = 5
314  CALL ssytrs_rook( 'U', 2, 1, a, 1, ip, b, 2, info )
315  CALL chkxer( 'SSYTRS_ROOK', infot, nout, lerr, ok )
316  infot = 8
317  CALL ssytrs_rook( 'U', 2, 1, a, 2, ip, b, 1, info )
318  CALL chkxer( 'SSYTRS_ROOK', infot, nout, lerr, ok )
319 *
320 * SSYCON_ROOK
321 *
322  srnamt = 'SSYCON_ROOK'
323  infot = 1
324  CALL ssycon_rook( '/', 0, a, 1, ip, anrm, rcond, w, iw, info )
325  CALL chkxer( 'SSYCON_ROOK', infot, nout, lerr, ok )
326  infot = 2
327  CALL ssycon_rook( 'U', -1, a, 1, ip, anrm, rcond, w, iw, info )
328  CALL chkxer( 'SSYCON_ROOK', infot, nout, lerr, ok )
329  infot = 4
330  CALL ssycon_rook( 'U', 2, a, 1, ip, anrm, rcond, w, iw, info )
331  CALL chkxer( 'SSYCON_ROOK', infot, nout, lerr, ok )
332  infot = 6
333  CALL ssycon_rook( 'U', 1, a, 1, ip, -1.0, rcond, w, iw, info )
334  CALL chkxer( 'SSYCON_ROOK', infot, nout, lerr, ok )
335 *
336 * Test error exits of the routines that use factorization
337 * of a symmetric indefinite packed matrix with patrial
338 * (Bunch-Kaufman) pivoting.
339 *
340  ELSE IF( lsamen( 2, c2, 'SP' ) ) THEN
341 *
342 * SSPTRF
343 *
344  srnamt = 'SSPTRF'
345  infot = 1
346  CALL ssptrf( '/', 0, a, ip, info )
347  CALL chkxer( 'SSPTRF', infot, nout, lerr, ok )
348  infot = 2
349  CALL ssptrf( 'U', -1, a, ip, info )
350  CALL chkxer( 'SSPTRF', infot, nout, lerr, ok )
351 *
352 * SSPTRI
353 *
354  srnamt = 'SSPTRI'
355  infot = 1
356  CALL ssptri( '/', 0, a, ip, w, info )
357  CALL chkxer( 'SSPTRI', infot, nout, lerr, ok )
358  infot = 2
359  CALL ssptri( 'U', -1, a, ip, w, info )
360  CALL chkxer( 'SSPTRI', infot, nout, lerr, ok )
361 *
362 * SSPTRS
363 *
364  srnamt = 'SSPTRS'
365  infot = 1
366  CALL ssptrs( '/', 0, 0, a, ip, b, 1, info )
367  CALL chkxer( 'SSPTRS', infot, nout, lerr, ok )
368  infot = 2
369  CALL ssptrs( 'U', -1, 0, a, ip, b, 1, info )
370  CALL chkxer( 'SSPTRS', infot, nout, lerr, ok )
371  infot = 3
372  CALL ssptrs( 'U', 0, -1, a, ip, b, 1, info )
373  CALL chkxer( 'SSPTRS', infot, nout, lerr, ok )
374  infot = 7
375  CALL ssptrs( 'U', 2, 1, a, ip, b, 1, info )
376  CALL chkxer( 'SSPTRS', infot, nout, lerr, ok )
377 *
378 * SSPRFS
379 *
380  srnamt = 'SSPRFS'
381  infot = 1
382  CALL ssprfs( '/', 0, 0, a, af, ip, b, 1, x, 1, r1, r2, w, iw,
383  $ info )
384  CALL chkxer( 'SSPRFS', infot, nout, lerr, ok )
385  infot = 2
386  CALL ssprfs( 'U', -1, 0, a, af, ip, b, 1, x, 1, r1, r2, w, iw,
387  $ info )
388  CALL chkxer( 'SSPRFS', infot, nout, lerr, ok )
389  infot = 3
390  CALL ssprfs( 'U', 0, -1, a, af, ip, b, 1, x, 1, r1, r2, w, iw,
391  $ info )
392  CALL chkxer( 'SSPRFS', infot, nout, lerr, ok )
393  infot = 8
394  CALL ssprfs( 'U', 2, 1, a, af, ip, b, 1, x, 2, r1, r2, w, iw,
395  $ info )
396  CALL chkxer( 'SSPRFS', infot, nout, lerr, ok )
397  infot = 10
398  CALL ssprfs( 'U', 2, 1, a, af, ip, b, 2, x, 1, r1, r2, w, iw,
399  $ info )
400  CALL chkxer( 'SSPRFS', infot, nout, lerr, ok )
401 *
402 * SSPCON
403 *
404  srnamt = 'SSPCON'
405  infot = 1
406  CALL sspcon( '/', 0, a, ip, anrm, rcond, w, iw, info )
407  CALL chkxer( 'SSPCON', infot, nout, lerr, ok )
408  infot = 2
409  CALL sspcon( 'U', -1, a, ip, anrm, rcond, w, iw, info )
410  CALL chkxer( 'SSPCON', infot, nout, lerr, ok )
411  infot = 5
412  CALL sspcon( 'U', 1, a, ip, -1.0, rcond, w, iw, info )
413  CALL chkxer( 'SSPCON', infot, nout, lerr, ok )
414  END IF
415 *
416 * Print a summary line.
417 *
418  CALL alaesm( path, ok, nout )
419 *
420  RETURN
421 *
422 * End of SERRSY
423 *
424  END
ssytri2
subroutine ssytri2(UPLO, N, A, LDA, IPIV, WORK, LWORK, INFO)
SSYTRI2
Definition: ssytri2.f:129
ssptrs
subroutine ssptrs(UPLO, N, NRHS, AP, IPIV, B, LDB, INFO)
SSPTRS
Definition: ssptrs.f:117
ssytrf_rook
subroutine ssytrf_rook(UPLO, N, A, LDA, IPIV, WORK, LWORK, INFO)
SSYTRF_ROOK
Definition: ssytrf_rook.f:210
ssytrs
subroutine ssytrs(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO)
SSYTRS
Definition: ssytrs.f:122
ssytrf
subroutine ssytrf(UPLO, N, A, LDA, IPIV, WORK, LWORK, INFO)
SSYTRF
Definition: ssytrf.f:184
alaesm
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:65
ssytf2_rook
subroutine ssytf2_rook(UPLO, N, A, LDA, IPIV, INFO)
SSYTF2_ROOK computes the factorization of a real symmetric indefinite matrix using the bounded Bunch-...
Definition: ssytf2_rook.f:196
ssytri
subroutine ssytri(UPLO, N, A, LDA, IPIV, WORK, INFO)
SSYTRI
Definition: ssytri.f:116
ssycon
subroutine ssycon(UPLO, N, A, LDA, IPIV, ANORM, RCOND, WORK, IWORK, INFO)
SSYCON
Definition: ssycon.f:132
ssycon_rook
subroutine ssycon_rook(UPLO, N, A, LDA, IPIV, ANORM, RCOND, WORK, IWORK, INFO)
SSYCON_ROOK
Definition: ssycon_rook.f:146
ssytri_rook
subroutine ssytri_rook(UPLO, N, A, LDA, IPIV, WORK, INFO)
SSYTRI_ROOK
Definition: ssytri_rook.f:131
chkxer
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3199
ssytrs_rook
subroutine ssytrs_rook(UPLO, N, NRHS, A, LDA, IPIV, B, LDB, INFO)
SSYTRS_ROOK
Definition: ssytrs_rook.f:138
ssptri
subroutine ssptri(UPLO, N, AP, IPIV, WORK, INFO)
SSPTRI
Definition: ssptri.f:111
ssprfs
subroutine ssprfs(UPLO, N, NRHS, AP, AFP, IPIV, B, LDB, X, LDX, FERR, BERR, WORK, IWORK, INFO)
SSPRFS
Definition: ssprfs.f:181
ssptrf
subroutine ssptrf(UPLO, N, AP, IPIV, INFO)
SSPTRF
Definition: ssptrf.f:159
serrsy
subroutine serrsy(PATH, NUNIT)
SERRSY
Definition: serrsy.f:57
sspcon
subroutine sspcon(UPLO, N, AP, IPIV, ANORM, RCOND, WORK, IWORK, INFO)
SSPCON
Definition: sspcon.f:127
ssyrfs
subroutine ssyrfs(UPLO, N, NRHS, A, LDA, AF, LDAF, IPIV, B, LDB, X, LDX, FERR, BERR, WORK, IWORK, INFO)
SSYRFS
Definition: ssyrfs.f:193
ssytf2
subroutine ssytf2(UPLO, N, A, LDA, IPIV, INFO)
SSYTF2 computes the factorization of a real symmetric indefinite matrix, using the diagonal pivoting ...
Definition: ssytf2.f:197