 LAPACK  3.6.1 LAPACK: Linear Algebra PACKage
 subroutine ddrvrf2 ( integer NOUT, integer NN, integer, dimension( nn ) NVAL, double precision, dimension( lda, * ) A, integer LDA, double precision, dimension( * ) ARF, double precision, dimension(*) AP, double precision, dimension( lda, * ) ASAV )

DDRVRF2

Purpose:
` DDRVRF2 tests the LAPACK RFP convertion routines.`
Parameters
 [in] NOUT ``` NOUT is INTEGER The unit number for output.``` [in] NN ``` NN is INTEGER The number of values of N contained in the vector NVAL.``` [in] NVAL ``` NVAL is INTEGER array, dimension (NN) The values of the matrix dimension N.``` [out] A ` A is DOUBLE PRECISION array, dimension (LDA,NMAX)` [in] LDA ``` LDA is INTEGER The leading dimension of the array A. LDA >= max(1,NMAX).``` [out] ARF ` ARF is DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2).` [out] AP ` AP is DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2).` [out] ASAV ` ASAV is DOUBLE PRECISION array, dimension (LDA,NMAX)`
Date
November 2011

Definition at line 91 of file ddrvrf2.f.

91 *
92 * -- LAPACK test routine (version 3.4.0) --
93 * -- LAPACK is a software package provided by Univ. of Tennessee, --
94 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
95 * November 2011
96 *
97 * .. Scalar Arguments ..
98  INTEGER lda, nn, nout
99 * ..
100 * .. Array Arguments ..
101  INTEGER nval( nn )
102  DOUBLE PRECISION a( lda, * ), arf( * ), ap(*), asav( lda, * )
103 * ..
104 *
105 * =====================================================================
106 * ..
107 * .. Local Scalars ..
108  LOGICAL lower, ok1, ok2
109  CHARACTER uplo, cform
110  INTEGER i, iform, iin, info, iuplo, j, n,
111  + nerrs, nrun
112 * ..
113 * .. Local Arrays ..
114  CHARACTER uplos( 2 ), forms( 2 )
115  INTEGER iseed( 4 ), iseedy( 4 )
116 * ..
117 * .. External Functions ..
118  DOUBLE PRECISION dlarnd
119  EXTERNAL dlarnd
120 * ..
121 * .. External Subroutines ..
122  EXTERNAL dtfttr, dtfttp, dtrttf, dtrttp, dtpttr, dtpttf
123 * ..
124 * .. Scalars in Common ..
125  CHARACTER*32 srnamt
126 * ..
127 * .. Common blocks ..
128  COMMON / srnamc / srnamt
129 * ..
130 * .. Data statements ..
131  DATA iseedy / 1988, 1989, 1990, 1991 /
132  DATA uplos / 'U', 'L' /
133  DATA forms / 'N', 'T' /
134 * ..
135 * .. Executable Statements ..
136 *
137 * Initialize constants and the random number seed.
138 *
139  nrun = 0
140  nerrs = 0
141  info = 0
142  DO 10 i = 1, 4
143  iseed( i ) = iseedy( i )
144  10 CONTINUE
145 *
146  DO 120 iin = 1, nn
147 *
148  n = nval( iin )
149 *
150 * Do first for UPLO = 'U', then for UPLO = 'L'
151 *
152  DO 110 iuplo = 1, 2
153 *
154  uplo = uplos( iuplo )
155  lower = .true.
156  IF ( iuplo.EQ.1 ) lower = .false.
157 *
158 * Do first for CFORM = 'N', then for CFORM = 'T'
159 *
160  DO 100 iform = 1, 2
161 *
162  cform = forms( iform )
163 *
164  nrun = nrun + 1
165 *
166  DO j = 1, n
167  DO i = 1, n
168  a( i, j) = dlarnd( 2, iseed )
169  END DO
170  END DO
171 *
172  srnamt = 'DTRTTF'
173  CALL dtrttf( cform, uplo, n, a, lda, arf, info )
174 *
175  srnamt = 'DTFTTP'
176  CALL dtfttp( cform, uplo, n, arf, ap, info )
177 *
178  srnamt = 'DTPTTR'
179  CALL dtpttr( uplo, n, ap, asav, lda, info )
180 *
181  ok1 = .true.
182  IF ( lower ) THEN
183  DO j = 1, n
184  DO i = j, n
185  IF ( a(i,j).NE.asav(i,j) ) THEN
186  ok1 = .false.
187  END IF
188  END DO
189  END DO
190  ELSE
191  DO j = 1, n
192  DO i = 1, j
193  IF ( a(i,j).NE.asav(i,j) ) THEN
194  ok1 = .false.
195  END IF
196  END DO
197  END DO
198  END IF
199 *
200  nrun = nrun + 1
201 *
202  srnamt = 'DTRTTP'
203  CALL dtrttp( uplo, n, a, lda, ap, info )
204 *
205  srnamt = 'DTPTTF'
206  CALL dtpttf( cform, uplo, n, ap, arf, info )
207 *
208  srnamt = 'DTFTTR'
209  CALL dtfttr( cform, uplo, n, arf, asav, lda, info )
210 *
211  ok2 = .true.
212  IF ( lower ) THEN
213  DO j = 1, n
214  DO i = j, n
215  IF ( a(i,j).NE.asav(i,j) ) THEN
216  ok2 = .false.
217  END IF
218  END DO
219  END DO
220  ELSE
221  DO j = 1, n
222  DO i = 1, j
223  IF ( a(i,j).NE.asav(i,j) ) THEN
224  ok2 = .false.
225  END IF
226  END DO
227  END DO
228  END IF
229 *
230  IF (( .NOT.ok1 ).OR.( .NOT.ok2 )) THEN
231  IF( nerrs.EQ.0 ) THEN
232  WRITE( nout, * )
233  WRITE( nout, fmt = 9999 )
234  END IF
235  WRITE( nout, fmt = 9998 ) n, uplo, cform
236  nerrs = nerrs + 1
237  END IF
238 *
239  100 CONTINUE
240  110 CONTINUE
241  120 CONTINUE
242 *
243 * Print a summary of the results.
244 *
245  IF ( nerrs.EQ.0 ) THEN
246  WRITE( nout, fmt = 9997 ) nrun
247  ELSE
248  WRITE( nout, fmt = 9996 ) nerrs, nrun
249  END IF
250 *
251  9999 FORMAT( 1x, ' *** Error(s) while testing the RFP convertion',
252  + ' routines ***')
253  9998 FORMAT( 1x, ' Error in RFP,convertion routines N=',i5,
254  + ' UPLO=''', a1, ''', FORM =''',a1,'''')
255  9997 FORMAT( 1x, 'All tests for the RFP convertion routines passed ( ',
256  + i5,' tests run)')
257  9996 FORMAT( 1x, 'RFP convertion routines: ',i5,' out of ',i5,
258  + ' error message recorded')
259 *
260  RETURN
261 *
262 * End of DDRVRF2
263 *
subroutine dtfttr(TRANSR, UPLO, N, ARF, A, LDA, INFO)
DTFTTR copies a triangular matrix from the rectangular full packed format (TF) to the standard full f...
Definition: dtfttr.f:198
subroutine dtpttr(UPLO, N, AP, A, LDA, INFO)
DTPTTR copies a triangular matrix from the standard packed format (TP) to the standard full format (T...
Definition: dtpttr.f:106
subroutine dtrttp(UPLO, N, A, LDA, AP, INFO)
DTRTTP copies a triangular matrix from the standard full format (TR) to the standard packed format (T...
Definition: dtrttp.f:106
double precision function dlarnd(IDIST, ISEED)
DLARND
Definition: dlarnd.f:75
subroutine dtrttf(TRANSR, UPLO, N, A, LDA, ARF, INFO)
DTRTTF copies a triangular matrix from the standard full format (TR) to the rectangular full packed f...
Definition: dtrttf.f:196
subroutine dtfttp(TRANSR, UPLO, N, ARF, AP, INFO)
DTFTTP copies a triangular matrix from the rectangular full packed format (TF) to the standard packed...
Definition: dtfttp.f:189
subroutine dtpttf(TRANSR, UPLO, N, AP, ARF, INFO)
DTPTTF copies a triangular matrix from the standard packed format (TP) to the rectangular full packed...
Definition: dtpttf.f:188

Here is the call graph for this function:

Here is the caller graph for this function: