LAPACK  3.9.1
LAPACK: Linear Algebra PACKage

◆ serrtsqr()

subroutine serrtsqr ( character*3  PATH,
integer  NUNIT 
)

DERRTSQR

Purpose:
 DERRTSQR tests the error exits for the REAL routines
 that use the TSQR 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 serrtsqr.f.

55  IMPLICIT NONE
56 *
57 * -- LAPACK test routine --
58 * -- LAPACK is a software package provided by Univ. of Tennessee, --
59 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
60 *
61 * .. Scalar Arguments ..
62  CHARACTER*3 PATH
63  INTEGER NUNIT
64 * ..
65 *
66 * =====================================================================
67 *
68 * .. Parameters ..
69  INTEGER NMAX
70  parameter( nmax = 2 )
71 * ..
72 * .. Local Scalars ..
73  INTEGER I, INFO, J, NB
74 * ..
75 * .. Local Arrays ..
76  REAL A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ),
77  $ C( NMAX, NMAX ), TAU(NMAX*2)
78 * ..
79 * .. External Subroutines ..
80  EXTERNAL alaesm, chkxer, sgeqr,
81  $ sgemqr, sgelq, sgemlq
82 * ..
83 * .. Scalars in Common ..
84  LOGICAL LERR, OK
85  CHARACTER*32 SRNAMT
86  INTEGER INFOT, NOUT
87 * ..
88 * .. Common blocks ..
89  COMMON / infoc / infot, nout, ok, lerr
90  COMMON / srnamc / srnamt
91 * ..
92 * .. Intrinsic Functions ..
93  INTRINSIC real
94 * ..
95 * .. Executable Statements ..
96 *
97  nout = nunit
98  WRITE( nout, fmt = * )
99 *
100 * Set the variables to innocuous values.
101 *
102  DO j = 1, nmax
103  DO i = 1, nmax
104  a( i, j ) = 1.d0 / real( i+j )
105  c( i, j ) = 1.d0 / real( i+j )
106  t( i, j ) = 1.d0 / real( i+j )
107  END DO
108  w( j ) = 0.d0
109  END DO
110  ok = .true.
111 *
112 * Error exits for TS factorization
113 *
114 * SGEQR
115 *
116  srnamt = 'SGEQR'
117  infot = 1
118  CALL sgeqr( -1, 0, a, 1, tau, 1, w, 1, info )
119  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
120  infot = 2
121  CALL sgeqr( 0, -1, a, 1, tau, 1, w, 1, info )
122  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
123  infot = 4
124  CALL sgeqr( 1, 1, a, 0, tau, 1, w, 1, info )
125  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
126  infot = 6
127  CALL sgeqr( 3, 2, a, 3, tau, 1, w, 1, info )
128  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
129  infot = 8
130  CALL sgeqr( 3, 2, a, 3, tau, 7, w, 0, info )
131  CALL chkxer( 'SGEQR', infot, nout, lerr, ok )
132 *
133 * SGEMQR
134 *
135  tau(1)=1
136  tau(2)=1
137  tau(3)=1
138  tau(4)=1
139  srnamt = 'SGEMQR'
140  nb=1
141  infot = 1
142  CALL sgemqr( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
143  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
144  infot = 2
145  CALL sgemqr( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
146  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
147  infot = 3
148  CALL sgemqr( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
149  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
150  infot = 4
151  CALL sgemqr( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
152  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
153  infot = 5
154  CALL sgemqr( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
155  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
156  infot = 5
157  CALL sgemqr( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
158  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
159  infot = 7
160  CALL sgemqr( 'L', 'N', 2, 1, 0, a, 0, tau, 1, c, 1, w, 1,info)
161  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
162  infot = 9
163  CALL sgemqr( 'R', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
164  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
165  infot = 9
166  CALL sgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 0, c, 1, w, 1,info)
167  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
168  infot = 11
169  CALL sgemqr( 'L', 'N', 2, 1, 1, a, 2, tau, 6, c, 0, w, 1,info)
170  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
171  infot = 13
172  CALL sgemqr( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
173  CALL chkxer( 'SGEMQR', infot, nout, lerr, ok )
174 *
175 * SGELQ
176 *
177  srnamt = 'SGELQ'
178  infot = 1
179  CALL sgelq( -1, 0, a, 1, tau, 1, w, 1, info )
180  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
181  infot = 2
182  CALL sgelq( 0, -1, a, 1, tau, 1, w, 1, info )
183  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
184  infot = 4
185  CALL sgelq( 1, 1, a, 0, tau, 1, w, 1, info )
186  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
187  infot = 6
188  CALL sgelq( 2, 3, a, 3, tau, 1, w, 1, info )
189  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
190  infot = 8
191  CALL sgelq( 2, 3, a, 3, tau, 7, w, 0, info )
192  CALL chkxer( 'SGELQ', infot, nout, lerr, ok )
193 *
194 * SGEMLQ
195 *
196  tau(1)=1
197  tau(2)=1
198  srnamt = 'SGEMLQ'
199  nb=1
200  infot = 1
201  CALL sgemlq( '/', 'N', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
202  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
203  infot = 2
204  CALL sgemlq( 'L', '/', 0, 0, 0, a, 1, tau, 1, c, 1, w, 1,info)
205  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
206  infot = 3
207  CALL sgemlq( 'L', 'N', -1, 0, 0, a, 1, tau, 1, c, 1, w,1,info)
208  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
209  infot = 4
210  CALL sgemlq( 'L', 'N', 0, -1, 0, a, 1, tau, 1, c, 1, w,1,info)
211  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
212  infot = 5
213  CALL sgemlq( 'L', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
214  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
215  infot = 5
216  CALL sgemlq( 'R', 'N', 0, 0, -1, a, 1, tau, 1, c, 1, w,1,info)
217  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
218  infot = 7
219  CALL sgemlq( 'L', 'N', 1, 2, 0, a, 0, tau, 1, c, 1, w, 1,info)
220  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
221  infot = 9
222  CALL sgemlq( 'R', 'N', 2, 2, 1, a, 1, tau, 0, c, 1, w, 1,info)
223  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
224  infot = 9
225  CALL sgemlq( 'L', 'N', 2, 2, 1, a, 1, tau, 0, c, 1, w, 1,info)
226  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
227  infot = 11
228  CALL sgemlq( 'L', 'N', 1, 2, 1, a, 1, tau, 6, c, 0, w, 1,info)
229  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
230  infot = 13
231  CALL sgemlq( 'L', 'N', 2, 2, 1, a, 2, tau, 6, c, 2, w, 0,info)
232  CALL chkxer( 'SGEMLQ', infot, nout, lerr, ok )
233 *
234 * Print a summary line.
235 *
236  CALL alaesm( path, ok, nout )
237 *
238  RETURN
239 *
240 * End of SERRTSQR
241 *
chkxer
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3196
alaesm
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:63
sgelq
subroutine sgelq(M, N, A, LDA, T, TSIZE, WORK, LWORK, INFO)
SGELQ
Definition: sgelq.f:172
sgemlq
subroutine sgemlq(SIDE, TRANS, M, N, K, A, LDA, T, TSIZE, C, LDC, WORK, LWORK, INFO)
SGEMLQ
Definition: sgemlq.f:170
sgemqr
subroutine sgemqr(SIDE, TRANS, M, N, K, A, LDA, T, TSIZE, C, LDC, WORK, LWORK, INFO)
SGEMQR
Definition: sgemqr.f:172
sgeqr
subroutine sgeqr(M, N, A, LDA, T, TSIZE, WORK, LWORK, INFO)
SGEQR
Definition: sgeqr.f:174
Here is the call graph for this function:
Here is the caller graph for this function: