LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ serrlqt()

subroutine serrlqt ( character*3  PATH,
integer  NUNIT 
)

SERRLQT

Purpose:
 DERRLQT tests the error exits for the DOUBLE PRECISION routines
 that use the LQT 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 serrlqt.f.

57  IMPLICIT NONE
58 *
59 * -- LAPACK test routine (version 3.7.0) --
60 * -- LAPACK is a software package provided by Univ. of Tennessee, --
61 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
62 * December 2016
63 *
64 * .. Scalar Arguments ..
65  CHARACTER*3 path
66  INTEGER nunit
67 * ..
68 *
69 * =====================================================================
70 *
71 * .. Parameters ..
72  INTEGER nmax
73  parameter( nmax = 2 )
74 * ..
75 * .. Local Scalars ..
76  INTEGER i, info, j
77 * ..
78 * .. Local Arrays ..
79  REAL a( nmax, nmax ), t( nmax, nmax ), w( nmax ),
80  $ c( nmax, nmax )
81 * ..
82 * .. External Subroutines ..
83  EXTERNAL alaesm, chkxer, sgelqt3, sgelqt,
84  $ sgemlqt
85 * ..
86 * .. Scalars in Common ..
87  LOGICAL lerr, ok
88  CHARACTER*32 srnamt
89  INTEGER infot, nout
90 * ..
91 * .. Common blocks ..
92  COMMON / infoc / infot, nout, ok, lerr
93  COMMON / srnamc / srnamt
94 * ..
95 * .. Intrinsic Functions ..
96  INTRINSIC real
97 * ..
98 * .. Executable Statements ..
99 *
100  nout = nunit
101  WRITE( nout, fmt = * )
102 *
103 * Set the variables to innocuous values.
104 *
105  DO j = 1, nmax
106  DO i = 1, nmax
107  a( i, j ) = 1.d0 / REAL( i+j )
108  c( i, j ) = 1.d0 / REAL( i+j )
109  t( i, j ) = 1.d0 / REAL( i+j )
110  END DO
111  w( j ) = 0.d0
112  END DO
113  ok = .true.
114 *
115 * Error exits for LQT factorization
116 *
117 * SGELQT
118 *
119  srnamt = 'SGELQT'
120  infot = 1
121  CALL sgelqt( -1, 0, 1, a, 1, t, 1, w, info )
122  CALL chkxer( 'SGELQT', infot, nout, lerr, ok )
123  infot = 2
124  CALL sgelqt( 0, -1, 1, a, 1, t, 1, w, info )
125  CALL chkxer( 'SGELQT', infot, nout, lerr, ok )
126  infot = 3
127  CALL sgelqt( 0, 0, 0, a, 1, t, 1, w, info )
128  CALL chkxer( 'SGELQT', infot, nout, lerr, ok )
129  infot = 5
130  CALL sgelqt( 2, 1, 1, a, 1, t, 1, w, info )
131  CALL chkxer( 'SGELQT', infot, nout, lerr, ok )
132  infot = 7
133  CALL sgelqt( 2, 2, 2, a, 2, t, 1, w, info )
134  CALL chkxer( 'SGELQT', infot, nout, lerr, ok )
135 *
136 * SGELQT3
137 *
138  srnamt = 'SGELQT3'
139  infot = 1
140  CALL sgelqt3( -1, 0, a, 1, t, 1, info )
141  CALL chkxer( 'SGELQT3', infot, nout, lerr, ok )
142  infot = 2
143  CALL sgelqt3( 0, -1, a, 1, t, 1, info )
144  CALL chkxer( 'SGELQT3', infot, nout, lerr, ok )
145  infot = 4
146  CALL sgelqt3( 2, 2, a, 1, t, 1, info )
147  CALL chkxer( 'SGELQT3', infot, nout, lerr, ok )
148  infot = 6
149  CALL sgelqt3( 2, 2, a, 2, t, 1, info )
150  CALL chkxer( 'SGELQT3', infot, nout, lerr, ok )
151 *
152 * SGEMLQT
153 *
154  srnamt = 'SGEMLQT'
155  infot = 1
156  CALL sgemlqt( '/', 'N', 0, 0, 0, 1, a, 1, t, 1, c, 1, w, info )
157  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
158  infot = 2
159  CALL sgemlqt( 'L', '/', 0, 0, 0, 1, a, 1, t, 1, c, 1, w, info )
160  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
161  infot = 3
162  CALL sgemlqt( 'L', 'N', -1, 0, 0, 1, a, 1, t, 1, c, 1, w, info )
163  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
164  infot = 4
165  CALL sgemlqt( 'L', 'N', 0, -1, 0, 1, a, 1, t, 1, c, 1, w, info )
166  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
167  infot = 5
168  CALL sgemlqt( 'L', 'N', 0, 0, -1, 1, a, 1, t, 1, c, 1, w, info )
169  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
170  infot = 5
171  CALL sgemlqt( 'R', 'N', 0, 0, -1, 1, a, 1, t, 1, c, 1, w, info )
172  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
173  infot = 6
174  CALL sgemlqt( 'L', 'N', 0, 0, 0, 0, a, 1, t, 1, c, 1, w, info )
175  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
176  infot = 8
177  CALL sgemlqt( 'R', 'N', 2, 2, 2, 1, a, 1, t, 1, c, 1, w, info )
178  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
179  infot = 8
180  CALL sgemlqt( 'L', 'N', 2, 2, 2, 1, a, 1, t, 1, c, 1, w, info )
181  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
182  infot = 10
183  CALL sgemlqt( 'R', 'N', 1, 1, 1, 1, a, 1, t, 0, c, 1, w, info )
184  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
185  infot = 12
186  CALL sgemlqt( 'L', 'N', 1, 1, 1, 1, a, 1, t, 1, c, 0, w, info )
187  CALL chkxer( 'SGEMLQT', infot, nout, lerr, ok )
188 *
189 * Print a summary line.
190 *
191  CALL alaesm( path, ok, nout )
192 *
193  RETURN
194 *
195 * End of SERRLQT
196 *
subroutine sgelqt(M, N, MB, A, LDA, T, LDT, WORK, INFO)
Definition: sgelqt.f:124
subroutine sgemlqt(SIDE, TRANS, M, N, K, MB, V, LDV, T, LDT, C, LDC, WORK, INFO)
Definition: sgemlqt.f:153
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:65
recursive subroutine sgelqt3(M, N, A, LDA, T, LDT, INFO)
Definition: sgelqt3.f:116
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3199
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