580 lines
19 KiB
Fortran
580 lines
19 KiB
Fortran
*> \brief \b DDRVRFP
|
|
*
|
|
* =========== DOCUMENTATION ===========
|
|
*
|
|
* Online html documentation available at
|
|
* http://www.netlib.org/lapack/explore-html/
|
|
*
|
|
* Definition:
|
|
* ===========
|
|
*
|
|
* SUBROUTINE DDRVRFP( NOUT, NN, NVAL, NNS, NSVAL, NNT, NTVAL,
|
|
* + THRESH, A, ASAV, AFAC, AINV, B,
|
|
* + BSAV, XACT, X, ARF, ARFINV,
|
|
* + D_WORK_DLATMS, D_WORK_DPOT01, D_TEMP_DPOT02,
|
|
* + D_TEMP_DPOT03, D_WORK_DLANSY,
|
|
* + D_WORK_DPOT02, D_WORK_DPOT03 )
|
|
*
|
|
* .. Scalar Arguments ..
|
|
* INTEGER NN, NNS, NNT, NOUT
|
|
* DOUBLE PRECISION THRESH
|
|
* ..
|
|
* .. Array Arguments ..
|
|
* INTEGER NVAL( NN ), NSVAL( NNS ), NTVAL( NNT )
|
|
* DOUBLE PRECISION A( * )
|
|
* DOUBLE PRECISION AINV( * )
|
|
* DOUBLE PRECISION ASAV( * )
|
|
* DOUBLE PRECISION B( * )
|
|
* DOUBLE PRECISION BSAV( * )
|
|
* DOUBLE PRECISION AFAC( * )
|
|
* DOUBLE PRECISION ARF( * )
|
|
* DOUBLE PRECISION ARFINV( * )
|
|
* DOUBLE PRECISION XACT( * )
|
|
* DOUBLE PRECISION X( * )
|
|
* DOUBLE PRECISION D_WORK_DLATMS( * )
|
|
* DOUBLE PRECISION D_WORK_DPOT01( * )
|
|
* DOUBLE PRECISION D_TEMP_DPOT02( * )
|
|
* DOUBLE PRECISION D_TEMP_DPOT03( * )
|
|
* DOUBLE PRECISION D_WORK_DLANSY( * )
|
|
* DOUBLE PRECISION D_WORK_DPOT02( * )
|
|
* DOUBLE PRECISION D_WORK_DPOT03( * )
|
|
* ..
|
|
*
|
|
*
|
|
*> \par Purpose:
|
|
* =============
|
|
*>
|
|
*> \verbatim
|
|
*>
|
|
*> DDRVRFP tests the LAPACK RFP routines:
|
|
*> DPFTRF, DPFTRS, and DPFTRI.
|
|
*>
|
|
*> This testing routine follow the same tests as DDRVPO (test for the full
|
|
*> format Symmetric Positive Definite solver).
|
|
*>
|
|
*> The tests are performed in Full Format, conversion back and forth from
|
|
*> full format to RFP format are performed using the routines DTRTTF and
|
|
*> DTFTTR.
|
|
*>
|
|
*> First, a specific matrix A of size N is created. There is nine types of
|
|
*> different matrixes possible.
|
|
*> 1. Diagonal 6. Random, CNDNUM = sqrt(0.1/EPS)
|
|
*> 2. Random, CNDNUM = 2 7. Random, CNDNUM = 0.1/EPS
|
|
*> *3. First row and column zero 8. Scaled near underflow
|
|
*> *4. Last row and column zero 9. Scaled near overflow
|
|
*> *5. Middle row and column zero
|
|
*> (* - tests error exits from DPFTRF, no test ratios are computed)
|
|
*> A solution XACT of size N-by-NRHS is created and the associated right
|
|
*> hand side B as well. Then DPFTRF is called to compute L (or U), the
|
|
*> Cholesky factor of A. Then L (or U) is used to solve the linear system
|
|
*> of equations AX = B. This gives X. Then L (or U) is used to compute the
|
|
*> inverse of A, AINV. The following four tests are then performed:
|
|
*> (1) norm( L*L' - A ) / ( N * norm(A) * EPS ) or
|
|
*> norm( U'*U - A ) / ( N * norm(A) * EPS ),
|
|
*> (2) norm(B - A*X) / ( norm(A) * norm(X) * EPS ),
|
|
*> (3) norm( I - A*AINV ) / ( N * norm(A) * norm(AINV) * EPS ),
|
|
*> (4) ( norm(X-XACT) * RCOND ) / ( norm(XACT) * EPS ),
|
|
*> where EPS is the machine precision, RCOND the condition number of A, and
|
|
*> norm( . ) the 1-norm for (1,2,3) and the inf-norm for (4).
|
|
*> Errors occur when INFO parameter is not as expected. Failures occur when
|
|
*> a test ratios is greater than THRES.
|
|
*> \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[in] NNS
|
|
*> \verbatim
|
|
*> NNS is INTEGER
|
|
*> The number of values of NRHS contained in the vector NSVAL.
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[in] NSVAL
|
|
*> \verbatim
|
|
*> NSVAL is INTEGER array, dimension (NNS)
|
|
*> The values of the number of right-hand sides NRHS.
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[in] NNT
|
|
*> \verbatim
|
|
*> NNT is INTEGER
|
|
*> The number of values of MATRIX TYPE contained in the vector NTVAL.
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[in] NTVAL
|
|
*> \verbatim
|
|
*> NTVAL is INTEGER array, dimension (NNT)
|
|
*> The values of matrix type (between 0 and 9 for PO/PP/PF matrices).
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[in] THRESH
|
|
*> \verbatim
|
|
*> THRESH is DOUBLE PRECISION
|
|
*> The threshold value for the test ratios. A result is
|
|
*> included in the output file if RESULT >= THRESH. To have
|
|
*> every test ratio printed, use THRESH = 0.
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] A
|
|
*> \verbatim
|
|
*> A is DOUBLE PRECISION array, dimension (NMAX*NMAX)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] ASAV
|
|
*> \verbatim
|
|
*> ASAV is DOUBLE PRECISION array, dimension (NMAX*NMAX)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] AFAC
|
|
*> \verbatim
|
|
*> AFAC is DOUBLE PRECISION array, dimension (NMAX*NMAX)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] AINV
|
|
*> \verbatim
|
|
*> AINV is DOUBLE PRECISION array, dimension (NMAX*NMAX)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] B
|
|
*> \verbatim
|
|
*> B is DOUBLE PRECISION array, dimension (NMAX*MAXRHS)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] BSAV
|
|
*> \verbatim
|
|
*> BSAV is DOUBLE PRECISION array, dimension (NMAX*MAXRHS)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] XACT
|
|
*> \verbatim
|
|
*> XACT is DOUBLE PRECISION array, dimension (NMAX*MAXRHS)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] X
|
|
*> \verbatim
|
|
*> X is DOUBLE PRECISION array, dimension (NMAX*MAXRHS)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] ARF
|
|
*> \verbatim
|
|
*> ARF is DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] ARFINV
|
|
*> \verbatim
|
|
*> ARFINV is DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2)
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_WORK_DLATMS
|
|
*> \verbatim
|
|
*> D_WORK_DLATMS is DOUBLE PRECISION array, dimension ( 3*NMAX )
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_WORK_DPOT01
|
|
*> \verbatim
|
|
*> D_WORK_DPOT01 is DOUBLE PRECISION array, dimension ( NMAX )
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_TEMP_DPOT02
|
|
*> \verbatim
|
|
*> D_TEMP_DPOT02 is DOUBLE PRECISION array, dimension ( NMAX*MAXRHS )
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_TEMP_DPOT03
|
|
*> \verbatim
|
|
*> D_TEMP_DPOT03 is DOUBLE PRECISION array, dimension ( NMAX*NMAX )
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_WORK_DLANSY
|
|
*> \verbatim
|
|
*> D_WORK_DLANSY is DOUBLE PRECISION array, dimension ( NMAX )
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_WORK_DPOT02
|
|
*> \verbatim
|
|
*> D_WORK_DPOT02 is DOUBLE PRECISION array, dimension ( NMAX )
|
|
*> \endverbatim
|
|
*>
|
|
*> \param[out] D_WORK_DPOT03
|
|
*> \verbatim
|
|
*> D_WORK_DPOT03 is DOUBLE PRECISION array, dimension ( NMAX )
|
|
*> \endverbatim
|
|
*
|
|
* Authors:
|
|
* ========
|
|
*
|
|
*> \author Univ. of Tennessee
|
|
*> \author Univ. of California Berkeley
|
|
*> \author Univ. of Colorado Denver
|
|
*> \author NAG Ltd.
|
|
*
|
|
*> \ingroup double_lin
|
|
*
|
|
* =====================================================================
|
|
SUBROUTINE DDRVRFP( NOUT, NN, NVAL, NNS, NSVAL, NNT, NTVAL,
|
|
+ THRESH, A, ASAV, AFAC, AINV, B,
|
|
+ BSAV, XACT, X, ARF, ARFINV,
|
|
+ D_WORK_DLATMS, D_WORK_DPOT01, D_TEMP_DPOT02,
|
|
+ D_TEMP_DPOT03, D_WORK_DLANSY,
|
|
+ D_WORK_DPOT02, D_WORK_DPOT03 )
|
|
*
|
|
* -- LAPACK test routine --
|
|
* -- LAPACK is a software package provided by Univ. of Tennessee, --
|
|
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
|
|
*
|
|
* .. Scalar Arguments ..
|
|
INTEGER NN, NNS, NNT, NOUT
|
|
DOUBLE PRECISION THRESH
|
|
* ..
|
|
* .. Array Arguments ..
|
|
INTEGER NVAL( NN ), NSVAL( NNS ), NTVAL( NNT )
|
|
DOUBLE PRECISION A( * )
|
|
DOUBLE PRECISION AINV( * )
|
|
DOUBLE PRECISION ASAV( * )
|
|
DOUBLE PRECISION B( * )
|
|
DOUBLE PRECISION BSAV( * )
|
|
DOUBLE PRECISION AFAC( * )
|
|
DOUBLE PRECISION ARF( * )
|
|
DOUBLE PRECISION ARFINV( * )
|
|
DOUBLE PRECISION XACT( * )
|
|
DOUBLE PRECISION X( * )
|
|
DOUBLE PRECISION D_WORK_DLATMS( * )
|
|
DOUBLE PRECISION D_WORK_DPOT01( * )
|
|
DOUBLE PRECISION D_TEMP_DPOT02( * )
|
|
DOUBLE PRECISION D_TEMP_DPOT03( * )
|
|
DOUBLE PRECISION D_WORK_DLANSY( * )
|
|
DOUBLE PRECISION D_WORK_DPOT02( * )
|
|
DOUBLE PRECISION D_WORK_DPOT03( * )
|
|
* ..
|
|
*
|
|
* =====================================================================
|
|
*
|
|
* .. Parameters ..
|
|
DOUBLE PRECISION ONE, ZERO
|
|
PARAMETER ( ONE = 1.0D+0, ZERO = 0.0D+0 )
|
|
INTEGER NTESTS
|
|
PARAMETER ( NTESTS = 4 )
|
|
* ..
|
|
* .. Local Scalars ..
|
|
LOGICAL ZEROT
|
|
INTEGER I, INFO, IUPLO, LDA, LDB, IMAT, NERRS, NFAIL,
|
|
+ NRHS, NRUN, IZERO, IOFF, K, NT, N, IFORM, IIN,
|
|
+ IIT, IIS
|
|
CHARACTER DIST, CTYPE, UPLO, CFORM
|
|
INTEGER KL, KU, MODE
|
|
DOUBLE PRECISION ANORM, AINVNM, CNDNUM, RCONDC
|
|
* ..
|
|
* .. Local Arrays ..
|
|
CHARACTER UPLOS( 2 ), FORMS( 2 )
|
|
INTEGER ISEED( 4 ), ISEEDY( 4 )
|
|
DOUBLE PRECISION RESULT( NTESTS )
|
|
* ..
|
|
* .. External Functions ..
|
|
DOUBLE PRECISION DLANSY
|
|
EXTERNAL DLANSY
|
|
* ..
|
|
* .. External Subroutines ..
|
|
EXTERNAL ALADHD, ALAERH, ALASVM, DGET04, DTFTTR, DLACPY,
|
|
+ DLARHS, DLATB4, DLATMS, DPFTRI, DPFTRF, DPFTRS,
|
|
+ DPOT01, DPOT02, DPOT03, DPOTRI, DPOTRF, DTRTTF
|
|
* ..
|
|
* .. 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
|
|
NFAIL = 0
|
|
NERRS = 0
|
|
DO 10 I = 1, 4
|
|
ISEED( I ) = ISEEDY( I )
|
|
10 CONTINUE
|
|
*
|
|
DO 130 IIN = 1, NN
|
|
*
|
|
N = NVAL( IIN )
|
|
LDA = MAX( N, 1 )
|
|
LDB = MAX( N, 1 )
|
|
*
|
|
DO 980 IIS = 1, NNS
|
|
*
|
|
NRHS = NSVAL( IIS )
|
|
*
|
|
DO 120 IIT = 1, NNT
|
|
*
|
|
IMAT = NTVAL( IIT )
|
|
*
|
|
* If N.EQ.0, only consider the first type
|
|
*
|
|
IF( N.EQ.0 .AND. IIT.GE.1 ) GO TO 120
|
|
*
|
|
* Skip types 3, 4, or 5 if the matrix size is too small.
|
|
*
|
|
IF( IMAT.EQ.4 .AND. N.LE.1 ) GO TO 120
|
|
IF( IMAT.EQ.5 .AND. N.LE.2 ) GO TO 120
|
|
*
|
|
* Do first for UPLO = 'U', then for UPLO = 'L'
|
|
*
|
|
DO 110 IUPLO = 1, 2
|
|
UPLO = UPLOS( IUPLO )
|
|
*
|
|
* Do first for CFORM = 'N', then for CFORM = 'C'
|
|
*
|
|
DO 100 IFORM = 1, 2
|
|
CFORM = FORMS( IFORM )
|
|
*
|
|
* Set up parameters with DLATB4 and generate a test
|
|
* matrix with DLATMS.
|
|
*
|
|
CALL DLATB4( 'DPO', IMAT, N, N, CTYPE, KL, KU,
|
|
+ ANORM, MODE, CNDNUM, DIST )
|
|
*
|
|
SRNAMT = 'DLATMS'
|
|
CALL DLATMS( N, N, DIST, ISEED, CTYPE,
|
|
+ D_WORK_DLATMS,
|
|
+ MODE, CNDNUM, ANORM, KL, KU, UPLO, A,
|
|
+ LDA, D_WORK_DLATMS, INFO )
|
|
*
|
|
* Check error code from DLATMS.
|
|
*
|
|
IF( INFO.NE.0 ) THEN
|
|
CALL ALAERH( 'DPF', 'DLATMS', INFO, 0, UPLO, N,
|
|
+ N, -1, -1, -1, IIT, NFAIL, NERRS,
|
|
+ NOUT )
|
|
GO TO 100
|
|
END IF
|
|
*
|
|
* For types 3-5, zero one row and column of the matrix to
|
|
* test that INFO is returned correctly.
|
|
*
|
|
ZEROT = IMAT.GE.3 .AND. IMAT.LE.5
|
|
IF( ZEROT ) THEN
|
|
IF( IIT.EQ.3 ) THEN
|
|
IZERO = 1
|
|
ELSE IF( IIT.EQ.4 ) THEN
|
|
IZERO = N
|
|
ELSE
|
|
IZERO = N / 2 + 1
|
|
END IF
|
|
IOFF = ( IZERO-1 )*LDA
|
|
*
|
|
* Set row and column IZERO of A to 0.
|
|
*
|
|
IF( IUPLO.EQ.1 ) THEN
|
|
DO 20 I = 1, IZERO - 1
|
|
A( IOFF+I ) = ZERO
|
|
20 CONTINUE
|
|
IOFF = IOFF + IZERO
|
|
DO 30 I = IZERO, N
|
|
A( IOFF ) = ZERO
|
|
IOFF = IOFF + LDA
|
|
30 CONTINUE
|
|
ELSE
|
|
IOFF = IZERO
|
|
DO 40 I = 1, IZERO - 1
|
|
A( IOFF ) = ZERO
|
|
IOFF = IOFF + LDA
|
|
40 CONTINUE
|
|
IOFF = IOFF - IZERO
|
|
DO 50 I = IZERO, N
|
|
A( IOFF+I ) = ZERO
|
|
50 CONTINUE
|
|
END IF
|
|
ELSE
|
|
IZERO = 0
|
|
END IF
|
|
*
|
|
* Save a copy of the matrix A in ASAV.
|
|
*
|
|
CALL DLACPY( UPLO, N, N, A, LDA, ASAV, LDA )
|
|
*
|
|
* Compute the condition number of A (RCONDC).
|
|
*
|
|
IF( ZEROT ) THEN
|
|
RCONDC = ZERO
|
|
ELSE
|
|
*
|
|
* Compute the 1-norm of A.
|
|
*
|
|
ANORM = DLANSY( '1', UPLO, N, A, LDA,
|
|
+ D_WORK_DLANSY )
|
|
*
|
|
* Factor the matrix A.
|
|
*
|
|
CALL DPOTRF( UPLO, N, A, LDA, INFO )
|
|
*
|
|
* Form the inverse of A.
|
|
*
|
|
CALL DPOTRI( UPLO, N, A, LDA, INFO )
|
|
|
|
IF ( N .NE. 0 ) THEN
|
|
*
|
|
* Compute the 1-norm condition number of A.
|
|
*
|
|
AINVNM = DLANSY( '1', UPLO, N, A, LDA,
|
|
+ D_WORK_DLANSY )
|
|
RCONDC = ( ONE / ANORM ) / AINVNM
|
|
*
|
|
* Restore the matrix A.
|
|
*
|
|
CALL DLACPY( UPLO, N, N, ASAV, LDA, A, LDA )
|
|
END IF
|
|
*
|
|
END IF
|
|
*
|
|
* Form an exact solution and set the right hand side.
|
|
*
|
|
SRNAMT = 'DLARHS'
|
|
CALL DLARHS( 'DPO', 'N', UPLO, ' ', N, N, KL, KU,
|
|
+ NRHS, A, LDA, XACT, LDA, B, LDA,
|
|
+ ISEED, INFO )
|
|
CALL DLACPY( 'Full', N, NRHS, B, LDA, BSAV, LDA )
|
|
*
|
|
* Compute the L*L' or U'*U factorization of the
|
|
* matrix and solve the system.
|
|
*
|
|
CALL DLACPY( UPLO, N, N, A, LDA, AFAC, LDA )
|
|
CALL DLACPY( 'Full', N, NRHS, B, LDB, X, LDB )
|
|
*
|
|
SRNAMT = 'DTRTTF'
|
|
CALL DTRTTF( CFORM, UPLO, N, AFAC, LDA, ARF, INFO )
|
|
SRNAMT = 'DPFTRF'
|
|
CALL DPFTRF( CFORM, UPLO, N, ARF, INFO )
|
|
*
|
|
* Check error code from DPFTRF.
|
|
*
|
|
IF( INFO.NE.IZERO ) THEN
|
|
*
|
|
* LANGOU: there is a small hick here: IZERO should
|
|
* always be INFO however if INFO is ZERO, ALAERH does not
|
|
* complain.
|
|
*
|
|
CALL ALAERH( 'DPF', 'DPFSV ', INFO, IZERO,
|
|
+ UPLO, N, N, -1, -1, NRHS, IIT,
|
|
+ NFAIL, NERRS, NOUT )
|
|
GO TO 100
|
|
END IF
|
|
*
|
|
* Skip the tests if INFO is not 0.
|
|
*
|
|
IF( INFO.NE.0 ) THEN
|
|
GO TO 100
|
|
END IF
|
|
*
|
|
SRNAMT = 'DPFTRS'
|
|
CALL DPFTRS( CFORM, UPLO, N, NRHS, ARF, X, LDB,
|
|
+ INFO )
|
|
*
|
|
SRNAMT = 'DTFTTR'
|
|
CALL DTFTTR( CFORM, UPLO, N, ARF, AFAC, LDA, INFO )
|
|
*
|
|
* Reconstruct matrix from factors and compute
|
|
* residual.
|
|
*
|
|
CALL DLACPY( UPLO, N, N, AFAC, LDA, ASAV, LDA )
|
|
CALL DPOT01( UPLO, N, A, LDA, AFAC, LDA,
|
|
+ D_WORK_DPOT01, RESULT( 1 ) )
|
|
CALL DLACPY( UPLO, N, N, ASAV, LDA, AFAC, LDA )
|
|
*
|
|
* Form the inverse and compute the residual.
|
|
*
|
|
IF(MOD(N,2).EQ.0)THEN
|
|
CALL DLACPY( 'A', N+1, N/2, ARF, N+1, ARFINV,
|
|
+ N+1 )
|
|
ELSE
|
|
CALL DLACPY( 'A', N, (N+1)/2, ARF, N, ARFINV,
|
|
+ N )
|
|
END IF
|
|
*
|
|
SRNAMT = 'DPFTRI'
|
|
CALL DPFTRI( CFORM, UPLO, N, ARFINV , INFO )
|
|
*
|
|
SRNAMT = 'DTFTTR'
|
|
CALL DTFTTR( CFORM, UPLO, N, ARFINV, AINV, LDA,
|
|
+ INFO )
|
|
*
|
|
* Check error code from DPFTRI.
|
|
*
|
|
IF( INFO.NE.0 )
|
|
+ CALL ALAERH( 'DPO', 'DPFTRI', INFO, 0, UPLO, N,
|
|
+ N, -1, -1, -1, IMAT, NFAIL, NERRS,
|
|
+ NOUT )
|
|
*
|
|
CALL DPOT03( UPLO, N, A, LDA, AINV, LDA,
|
|
+ D_TEMP_DPOT03, LDA, D_WORK_DPOT03,
|
|
+ RCONDC, RESULT( 2 ) )
|
|
*
|
|
* Compute residual of the computed solution.
|
|
*
|
|
CALL DLACPY( 'Full', N, NRHS, B, LDA,
|
|
+ D_TEMP_DPOT02, LDA )
|
|
CALL DPOT02( UPLO, N, NRHS, A, LDA, X, LDA,
|
|
+ D_TEMP_DPOT02, LDA, D_WORK_DPOT02,
|
|
+ RESULT( 3 ) )
|
|
*
|
|
* Check solution from generated exact solution.
|
|
|
|
CALL DGET04( N, NRHS, X, LDA, XACT, LDA, RCONDC,
|
|
+ RESULT( 4 ) )
|
|
NT = 4
|
|
*
|
|
* Print information about the tests that did not
|
|
* pass the threshold.
|
|
*
|
|
DO 60 K = 1, NT
|
|
IF( RESULT( K ).GE.THRESH ) THEN
|
|
IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
|
|
+ CALL ALADHD( NOUT, 'DPF' )
|
|
WRITE( NOUT, FMT = 9999 )'DPFSV ', UPLO,
|
|
+ N, IIT, K, RESULT( K )
|
|
NFAIL = NFAIL + 1
|
|
END IF
|
|
60 CONTINUE
|
|
NRUN = NRUN + NT
|
|
100 CONTINUE
|
|
110 CONTINUE
|
|
120 CONTINUE
|
|
980 CONTINUE
|
|
130 CONTINUE
|
|
*
|
|
* Print a summary of the results.
|
|
*
|
|
CALL ALASVM( 'DPF', NOUT, NFAIL, NRUN, NERRS )
|
|
*
|
|
9999 FORMAT( 1X, A6, ', UPLO=''', A1, ''', N =', I5, ', type ', I1,
|
|
+ ', test(', I1, ')=', G12.5 )
|
|
*
|
|
RETURN
|
|
*
|
|
* End of DDRVRFP
|
|
*
|
|
END
|