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|
*> \brief \b DDRVRF2
*
* =========== DOCUMENTATION ===========
*
* Online html documentation available at
* http://www.netlib.org/lapack/explore-html/
*
* Definition:
* ===========
*
* SUBROUTINE DDRVRF2( NOUT, NN, NVAL, A, LDA, ARF, AP, ASAV )
*
* .. Scalar Arguments ..
* INTEGER LDA, NN, NOUT
* ..
* .. Array Arguments ..
* INTEGER NVAL( NN )
* DOUBLE PRECISION A( LDA, * ), ARF( * ), AP(*), ASAV( LDA, * )
* ..
*
*
*> \par Purpose:
* =============
*>
*> \verbatim
*>
*> DDRVRF2 tests the LAPACK RFP conversion routines.
*> \endverbatim
*
* Arguments:
* ==========
*
*> \param[in] NOUT
*> \verbatim
*> NOUT is INTEGER
*> The unit number for output.
*> \endverbatim
*>
*> \param[in] NN
*> \verbatim
*> NN is INTEGER
*> The number of values of N contained in the vector NVAL.
*> \endverbatim
*>
*> \param[in] NVAL
*> \verbatim
*> NVAL is INTEGER array, dimension (NN)
*> The values of the matrix dimension N.
*> \endverbatim
*>
*> \param[out] A
*> \verbatim
*> A is DOUBLE PRECISION array, dimension (LDA,NMAX)
*> \endverbatim
*>
*> \param[in] LDA
*> \verbatim
*> LDA is INTEGER
*> The leading dimension of the array A. LDA >= max(1,NMAX).
*> \endverbatim
*>
*> \param[out] ARF
*> \verbatim
*> ARF is DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2).
*> \endverbatim
*>
*> \param[out] AP
*> \verbatim
*> AP is DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2).
*> \endverbatim
*>
*> \param[out] ASAV
*> \verbatim
*> ASAV is DOUBLE PRECISION array, dimension (LDA,NMAX)
*> \endverbatim
*
* Authors:
* ========
*
*> \author Univ. of Tennessee
*> \author Univ. of California Berkeley
*> \author Univ. of Colorado Denver
*> \author NAG Ltd.
*
*> \date November 2011
*
*> \ingroup double_lin
*
* =====================================================================
SUBROUTINE DDRVRF2( NOUT, NN, NVAL, A, LDA, ARF, AP, ASAV )
*
* -- LAPACK test routine (version 3.4.0) --
* -- LAPACK is a software package provided by Univ. of Tennessee, --
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
* November 2011
*
* .. Scalar Arguments ..
INTEGER LDA, NN, NOUT
* ..
* .. Array Arguments ..
INTEGER NVAL( NN )
DOUBLE PRECISION A( LDA, * ), ARF( * ), AP(*), ASAV( LDA, * )
* ..
*
* =====================================================================
* ..
* .. Local Scalars ..
LOGICAL LOWER, OK1, OK2
CHARACTER UPLO, CFORM
INTEGER I, IFORM, IIN, INFO, IUPLO, J, N,
+ NERRS, NRUN
* ..
* .. Local Arrays ..
CHARACTER UPLOS( 2 ), FORMS( 2 )
INTEGER ISEED( 4 ), ISEEDY( 4 )
* ..
* .. External Functions ..
DOUBLE PRECISION DLARND
EXTERNAL DLARND
* ..
* .. External Subroutines ..
EXTERNAL DTFTTR, DTFTTP, DTRTTF, DTRTTP, DTPTTR, DTPTTF
* ..
* .. Scalars in Common ..
CHARACTER*32 SRNAMT
* ..
* .. Common blocks ..
COMMON / SRNAMC / SRNAMT
* ..
* .. Data statements ..
DATA ISEEDY / 1988, 1989, 1990, 1991 /
DATA UPLOS / 'U', 'L' /
DATA FORMS / 'N', 'T' /
* ..
* .. Executable Statements ..
*
* Initialize constants and the random number seed.
*
NRUN = 0
NERRS = 0
INFO = 0
DO 10 I = 1, 4
ISEED( I ) = ISEEDY( I )
10 CONTINUE
*
DO 120 IIN = 1, NN
*
N = NVAL( IIN )
*
* Do first for UPLO = 'U', then for UPLO = 'L'
*
DO 110 IUPLO = 1, 2
*
UPLO = UPLOS( IUPLO )
LOWER = .TRUE.
IF ( IUPLO.EQ.1 ) LOWER = .FALSE.
*
* Do first for CFORM = 'N', then for CFORM = 'T'
*
DO 100 IFORM = 1, 2
*
CFORM = FORMS( IFORM )
*
NRUN = NRUN + 1
*
DO J = 1, N
DO I = 1, N
A( I, J) = DLARND( 2, ISEED )
END DO
END DO
*
SRNAMT = 'DTRTTF'
CALL DTRTTF( CFORM, UPLO, N, A, LDA, ARF, INFO )
*
SRNAMT = 'DTFTTP'
CALL DTFTTP( CFORM, UPLO, N, ARF, AP, INFO )
*
SRNAMT = 'DTPTTR'
CALL DTPTTR( UPLO, N, AP, ASAV, LDA, INFO )
*
OK1 = .TRUE.
IF ( LOWER ) THEN
DO J = 1, N
DO I = J, N
IF ( A(I,J).NE.ASAV(I,J) ) THEN
OK1 = .FALSE.
END IF
END DO
END DO
ELSE
DO J = 1, N
DO I = 1, J
IF ( A(I,J).NE.ASAV(I,J) ) THEN
OK1 = .FALSE.
END IF
END DO
END DO
END IF
*
NRUN = NRUN + 1
*
SRNAMT = 'DTRTTP'
CALL DTRTTP( UPLO, N, A, LDA, AP, INFO )
*
SRNAMT = 'DTPTTF'
CALL DTPTTF( CFORM, UPLO, N, AP, ARF, INFO )
*
SRNAMT = 'DTFTTR'
CALL DTFTTR( CFORM, UPLO, N, ARF, ASAV, LDA, INFO )
*
OK2 = .TRUE.
IF ( LOWER ) THEN
DO J = 1, N
DO I = J, N
IF ( A(I,J).NE.ASAV(I,J) ) THEN
OK2 = .FALSE.
END IF
END DO
END DO
ELSE
DO J = 1, N
DO I = 1, J
IF ( A(I,J).NE.ASAV(I,J) ) THEN
OK2 = .FALSE.
END IF
END DO
END DO
END IF
*
IF (( .NOT.OK1 ).OR.( .NOT.OK2 )) THEN
IF( NERRS.EQ.0 ) THEN
WRITE( NOUT, * )
WRITE( NOUT, FMT = 9999 )
END IF
WRITE( NOUT, FMT = 9998 ) N, UPLO, CFORM
NERRS = NERRS + 1
END IF
*
100 CONTINUE
110 CONTINUE
120 CONTINUE
*
* Print a summary of the results.
*
IF ( NERRS.EQ.0 ) THEN
WRITE( NOUT, FMT = 9997 ) NRUN
ELSE
WRITE( NOUT, FMT = 9996 ) NERRS, NRUN
END IF
*
9999 FORMAT( 1X, ' *** Error(s) while testing the RFP conversion',
+ ' routines ***')
9998 FORMAT( 1X, ' Error in RFP,conversion routines N=',I5,
+ ' UPLO=''', A1, ''', FORM =''',A1,'''')
9997 FORMAT( 1X, 'All tests for the RFP conversion routines passed ( ',
+ I5,' tests run)')
9996 FORMAT( 1X, 'RFP conversion routines: ',I5,' out of ',I5,
+ ' error message recorded')
*
RETURN
*
* End of DDRVRF2
*
END
|
