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548 lines
17 KiB
548 lines
17 KiB
2 years ago
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*> \brief \b CCHKTP
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*
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* =========== DOCUMENTATION ===========
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*
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* Online html documentation available at
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* http://www.netlib.org/lapack/explore-html/
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*
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* Definition:
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* ===========
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*
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* SUBROUTINE CCHKTP( DOTYPE, NN, NVAL, NNS, NSVAL, THRESH, TSTERR,
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* NMAX, AP, AINVP, B, X, XACT, WORK, RWORK,
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* NOUT )
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*
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* .. Scalar Arguments ..
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* LOGICAL TSTERR
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* INTEGER NMAX, NN, NNS, NOUT
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* REAL THRESH
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* ..
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* .. Array Arguments ..
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* LOGICAL DOTYPE( * )
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* INTEGER NSVAL( * ), NVAL( * )
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* REAL RWORK( * )
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* COMPLEX AINVP( * ), AP( * ), B( * ), WORK( * ), X( * ),
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* $ XACT( * )
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* ..
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*
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*
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*> \par Purpose:
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* =============
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*>
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*> \verbatim
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*>
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*> CCHKTP tests CTPTRI, -TRS, -RFS, and -CON, and CLATPS
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*> \endverbatim
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*
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* Arguments:
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* ==========
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*
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*> \param[in] DOTYPE
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*> \verbatim
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*> DOTYPE is LOGICAL array, dimension (NTYPES)
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*> The matrix types to be used for testing. Matrices of type j
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*> (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
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*> .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.
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*> \endverbatim
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*>
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*> \param[in] NN
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*> \verbatim
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*> NN is INTEGER
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*> The number of values of N contained in the vector NVAL.
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*> \endverbatim
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*>
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*> \param[in] NVAL
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*> \verbatim
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*> NVAL is INTEGER array, dimension (NN)
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*> The values of the matrix column dimension N.
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*> \endverbatim
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*>
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*> \param[in] NNS
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*> \verbatim
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*> NNS is INTEGER
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*> The number of values of NRHS contained in the vector NSVAL.
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*> \endverbatim
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*>
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*> \param[in] NSVAL
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*> \verbatim
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*> NSVAL is INTEGER array, dimension (NNS)
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*> The values of the number of right hand sides NRHS.
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*> \endverbatim
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*>
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*> \param[in] THRESH
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*> \verbatim
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*> THRESH is REAL
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*> The threshold value for the test ratios. A result is
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*> included in the output file if RESULT >= THRESH. To have
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*> every test ratio printed, use THRESH = 0.
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*> \endverbatim
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*>
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*> \param[in] TSTERR
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*> \verbatim
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*> TSTERR is LOGICAL
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*> Flag that indicates whether error exits are to be tested.
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*> \endverbatim
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*>
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*> \param[in] NMAX
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*> \verbatim
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*> NMAX is INTEGER
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*> The leading dimension of the work arrays. NMAX >= the
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*> maximum value of N in NVAL.
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*> \endverbatim
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*>
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*> \param[out] AP
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*> \verbatim
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*> AP is COMPLEX array, dimension (NMAX*(NMAX+1)/2)
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*> \endverbatim
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*>
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*> \param[out] AINVP
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*> \verbatim
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*> AINVP is COMPLEX array, dimension (NMAX*(NMAX+1)/2)
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*> \endverbatim
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*>
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*> \param[out] B
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*> \verbatim
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*> B is COMPLEX array, dimension (NMAX*NSMAX)
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*> where NSMAX is the largest entry in NSVAL.
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*> \endverbatim
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*>
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*> \param[out] X
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*> \verbatim
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*> X is COMPLEX array, dimension (NMAX*NSMAX)
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*> \endverbatim
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*>
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*> \param[out] XACT
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*> \verbatim
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*> XACT is COMPLEX array, dimension (NMAX*NSMAX)
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*> \endverbatim
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*>
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*> \param[out] WORK
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*> \verbatim
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*> WORK is COMPLEX array, dimension
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*> (NMAX*max(3,NSMAX))
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*> \endverbatim
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*>
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*> \param[out] RWORK
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*> \verbatim
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*> RWORK is REAL array, dimension
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*> (max(NMAX,2*NSMAX))
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*> \endverbatim
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*>
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*> \param[in] NOUT
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*> \verbatim
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*> NOUT is INTEGER
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*> The unit number for output.
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*> \endverbatim
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*
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* Authors:
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* ========
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*
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*> \author Univ. of Tennessee
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*> \author Univ. of California Berkeley
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*> \author Univ. of Colorado Denver
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*> \author NAG Ltd.
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*
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*> \ingroup complex_lin
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*
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* =====================================================================
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SUBROUTINE CCHKTP( DOTYPE, NN, NVAL, NNS, NSVAL, THRESH, TSTERR,
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$ NMAX, AP, AINVP, B, X, XACT, WORK, RWORK,
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$ NOUT )
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*
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* -- LAPACK test routine --
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* -- LAPACK is a software package provided by Univ. of Tennessee, --
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* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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*
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* .. Scalar Arguments ..
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LOGICAL TSTERR
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INTEGER NMAX, NN, NNS, NOUT
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REAL THRESH
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* ..
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* .. Array Arguments ..
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LOGICAL DOTYPE( * )
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INTEGER NSVAL( * ), NVAL( * )
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REAL RWORK( * )
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COMPLEX AINVP( * ), AP( * ), B( * ), WORK( * ), X( * ),
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$ XACT( * )
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* ..
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*
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* =====================================================================
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*
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* .. Parameters ..
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INTEGER NTYPE1, NTYPES
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PARAMETER ( NTYPE1 = 10, NTYPES = 18 )
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INTEGER NTESTS
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PARAMETER ( NTESTS = 9 )
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INTEGER NTRAN
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PARAMETER ( NTRAN = 3 )
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REAL ONE, ZERO
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PARAMETER ( ONE = 1.0E+0, ZERO = 0.0E+0 )
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* ..
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* .. Local Scalars ..
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CHARACTER DIAG, NORM, TRANS, UPLO, XTYPE
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CHARACTER*3 PATH
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INTEGER I, IDIAG, IMAT, IN, INFO, IRHS, ITRAN, IUPLO,
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$ K, LAP, LDA, N, NERRS, NFAIL, NRHS, NRUN
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REAL AINVNM, ANORM, RCOND, RCONDC, RCONDI, RCONDO,
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$ SCALE
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* ..
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* .. Local Arrays ..
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CHARACTER TRANSS( NTRAN ), UPLOS( 2 )
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INTEGER ISEED( 4 ), ISEEDY( 4 )
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REAL RESULT( NTESTS )
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* ..
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* .. External Functions ..
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LOGICAL LSAME
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REAL CLANTP
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EXTERNAL LSAME, CLANTP
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* ..
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* .. External Subroutines ..
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EXTERNAL ALAERH, ALAHD, ALASUM, CCOPY, CERRTR, CGET04,
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$ CLACPY, CLARHS, CLATPS, CLATTP, CTPCON, CTPRFS,
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$ CTPT01, CTPT02, CTPT03, CTPT05, CTPT06, CTPTRI,
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$ CTPTRS
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* ..
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* .. Scalars in Common ..
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LOGICAL LERR, OK
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CHARACTER*32 SRNAMT
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INTEGER INFOT, IOUNIT
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* ..
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* .. Common blocks ..
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COMMON / INFOC / INFOT, IOUNIT, OK, LERR
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COMMON / SRNAMC / SRNAMT
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* ..
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* .. Intrinsic Functions ..
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INTRINSIC MAX
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* ..
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* .. Data statements ..
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DATA ISEEDY / 1988, 1989, 1990, 1991 /
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DATA UPLOS / 'U', 'L' / , TRANSS / 'N', 'T', 'C' /
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* ..
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* .. Executable Statements ..
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*
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* Initialize constants and the random number seed.
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*
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PATH( 1: 1 ) = 'Complex precision'
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PATH( 2: 3 ) = 'TP'
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NRUN = 0
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NFAIL = 0
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NERRS = 0
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DO 10 I = 1, 4
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ISEED( I ) = ISEEDY( I )
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10 CONTINUE
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*
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* Test the error exits
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*
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IF( TSTERR )
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$ CALL CERRTR( PATH, NOUT )
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INFOT = 0
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*
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DO 110 IN = 1, NN
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*
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* Do for each value of N in NVAL
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*
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N = NVAL( IN )
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LDA = MAX( 1, N )
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LAP = LDA*( LDA+1 ) / 2
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XTYPE = 'N'
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*
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DO 70 IMAT = 1, NTYPE1
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*
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* Do the tests only if DOTYPE( IMAT ) is true.
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*
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IF( .NOT.DOTYPE( IMAT ) )
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$ GO TO 70
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*
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DO 60 IUPLO = 1, 2
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*
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* Do first for UPLO = 'U', then for UPLO = 'L'
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*
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UPLO = UPLOS( IUPLO )
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*
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* Call CLATTP to generate a triangular test matrix.
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*
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SRNAMT = 'CLATTP'
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CALL CLATTP( IMAT, UPLO, 'No transpose', DIAG, ISEED, N,
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$ AP, X, WORK, RWORK, INFO )
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*
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* Set IDIAG = 1 for non-unit matrices, 2 for unit.
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*
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IF( LSAME( DIAG, 'N' ) ) THEN
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IDIAG = 1
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ELSE
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IDIAG = 2
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END IF
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*
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*+ TEST 1
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* Form the inverse of A.
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*
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IF( N.GT.0 )
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$ CALL CCOPY( LAP, AP, 1, AINVP, 1 )
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SRNAMT = 'CTPTRI'
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CALL CTPTRI( UPLO, DIAG, N, AINVP, INFO )
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*
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* Check error code from CTPTRI.
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*
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IF( INFO.NE.0 )
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$ CALL ALAERH( PATH, 'CTPTRI', INFO, 0, UPLO // DIAG, N,
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$ N, -1, -1, -1, IMAT, NFAIL, NERRS, NOUT )
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*
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* Compute the infinity-norm condition number of A.
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*
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ANORM = CLANTP( 'I', UPLO, DIAG, N, AP, RWORK )
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AINVNM = CLANTP( 'I', UPLO, DIAG, N, AINVP, RWORK )
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IF( ANORM.LE.ZERO .OR. AINVNM.LE.ZERO ) THEN
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RCONDI = ONE
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ELSE
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RCONDI = ( ONE / ANORM ) / AINVNM
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END IF
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*
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* Compute the residual for the triangular matrix times its
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* inverse. Also compute the 1-norm condition number of A.
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*
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CALL CTPT01( UPLO, DIAG, N, AP, AINVP, RCONDO, RWORK,
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$ RESULT( 1 ) )
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*
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* Print the test ratio if it is .GE. THRESH.
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*
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IF( RESULT( 1 ).GE.THRESH ) THEN
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IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
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$ CALL ALAHD( NOUT, PATH )
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WRITE( NOUT, FMT = 9999 )UPLO, DIAG, N, IMAT, 1,
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$ RESULT( 1 )
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NFAIL = NFAIL + 1
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END IF
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NRUN = NRUN + 1
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*
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DO 40 IRHS = 1, NNS
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NRHS = NSVAL( IRHS )
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XTYPE = 'N'
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*
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DO 30 ITRAN = 1, NTRAN
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*
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* Do for op(A) = A, A**T, or A**H.
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*
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TRANS = TRANSS( ITRAN )
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IF( ITRAN.EQ.1 ) THEN
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NORM = 'O'
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RCONDC = RCONDO
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ELSE
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NORM = 'I'
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RCONDC = RCONDI
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END IF
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*
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*+ TEST 2
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* Solve and compute residual for op(A)*x = b.
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*
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SRNAMT = 'CLARHS'
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CALL CLARHS( PATH, XTYPE, UPLO, TRANS, N, N, 0,
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$ IDIAG, NRHS, AP, LAP, XACT, LDA, B,
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$ LDA, ISEED, INFO )
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XTYPE = 'C'
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CALL CLACPY( 'Full', N, NRHS, B, LDA, X, LDA )
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*
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SRNAMT = 'CTPTRS'
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CALL CTPTRS( UPLO, TRANS, DIAG, N, NRHS, AP, X,
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$ LDA, INFO )
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*
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* Check error code from CTPTRS.
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*
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IF( INFO.NE.0 )
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$ CALL ALAERH( PATH, 'CTPTRS', INFO, 0,
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$ UPLO // TRANS // DIAG, N, N, -1,
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$ -1, -1, IMAT, NFAIL, NERRS, NOUT )
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*
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CALL CTPT02( UPLO, TRANS, DIAG, N, NRHS, AP, X,
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$ LDA, B, LDA, WORK, RWORK,
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$ RESULT( 2 ) )
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*
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*+ TEST 3
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* Check solution from generated exact solution.
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*
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CALL CGET04( N, NRHS, X, LDA, XACT, LDA, RCONDC,
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$ RESULT( 3 ) )
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*
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*+ TESTS 4, 5, and 6
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* Use iterative refinement to improve the solution and
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* compute error bounds.
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*
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SRNAMT = 'CTPRFS'
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CALL CTPRFS( UPLO, TRANS, DIAG, N, NRHS, AP, B,
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$ LDA, X, LDA, RWORK, RWORK( NRHS+1 ),
|
||
|
|
$ WORK, RWORK( 2*NRHS+1 ), INFO )
|
||
|
|
*
|
||
|
|
* Check error code from CTPRFS.
|
||
|
|
*
|
||
|
|
IF( INFO.NE.0 )
|
||
|
|
$ CALL ALAERH( PATH, 'CTPRFS', INFO, 0,
|
||
|
|
$ UPLO // TRANS // DIAG, N, N, -1,
|
||
|
|
$ -1, NRHS, IMAT, NFAIL, NERRS,
|
||
|
|
$ NOUT )
|
||
|
|
*
|
||
|
|
CALL CGET04( N, NRHS, X, LDA, XACT, LDA, RCONDC,
|
||
|
|
$ RESULT( 4 ) )
|
||
|
|
CALL CTPT05( UPLO, TRANS, DIAG, N, NRHS, AP, B,
|
||
|
|
$ LDA, X, LDA, XACT, LDA, RWORK,
|
||
|
|
$ RWORK( NRHS+1 ), RESULT( 5 ) )
|
||
|
|
*
|
||
|
|
* Print information about the tests that did not pass
|
||
|
|
* the threshold.
|
||
|
|
*
|
||
|
|
DO 20 K = 2, 6
|
||
|
|
IF( RESULT( K ).GE.THRESH ) THEN
|
||
|
|
IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
|
||
|
|
$ CALL ALAHD( NOUT, PATH )
|
||
|
|
WRITE( NOUT, FMT = 9998 )UPLO, TRANS, DIAG,
|
||
|
|
$ N, NRHS, IMAT, K, RESULT( K )
|
||
|
|
NFAIL = NFAIL + 1
|
||
|
|
END IF
|
||
|
|
20 CONTINUE
|
||
|
|
NRUN = NRUN + 5
|
||
|
|
30 CONTINUE
|
||
|
|
40 CONTINUE
|
||
|
|
*
|
||
|
|
*+ TEST 7
|
||
|
|
* Get an estimate of RCOND = 1/CNDNUM.
|
||
|
|
*
|
||
|
|
DO 50 ITRAN = 1, 2
|
||
|
|
IF( ITRAN.EQ.1 ) THEN
|
||
|
|
NORM = 'O'
|
||
|
|
RCONDC = RCONDO
|
||
|
|
ELSE
|
||
|
|
NORM = 'I'
|
||
|
|
RCONDC = RCONDI
|
||
|
|
END IF
|
||
|
|
SRNAMT = 'CTPCON'
|
||
|
|
CALL CTPCON( NORM, UPLO, DIAG, N, AP, RCOND, WORK,
|
||
|
|
$ RWORK, INFO )
|
||
|
|
*
|
||
|
|
* Check error code from CTPCON.
|
||
|
|
*
|
||
|
|
IF( INFO.NE.0 )
|
||
|
|
$ CALL ALAERH( PATH, 'CTPCON', INFO, 0,
|
||
|
|
$ NORM // UPLO // DIAG, N, N, -1, -1,
|
||
|
|
$ -1, IMAT, NFAIL, NERRS, NOUT )
|
||
|
|
*
|
||
|
|
CALL CTPT06( RCOND, RCONDC, UPLO, DIAG, N, AP, RWORK,
|
||
|
|
$ RESULT( 7 ) )
|
||
|
|
*
|
||
|
|
* Print the test ratio if it is .GE. THRESH.
|
||
|
|
*
|
||
|
|
IF( RESULT( 7 ).GE.THRESH ) THEN
|
||
|
|
IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
|
||
|
|
$ CALL ALAHD( NOUT, PATH )
|
||
|
|
WRITE( NOUT, FMT = 9997 ) 'CTPCON', NORM, UPLO,
|
||
|
|
$ DIAG, N, IMAT, 7, RESULT( 7 )
|
||
|
|
NFAIL = NFAIL + 1
|
||
|
|
END IF
|
||
|
|
NRUN = NRUN + 1
|
||
|
|
50 CONTINUE
|
||
|
|
60 CONTINUE
|
||
|
|
70 CONTINUE
|
||
|
|
*
|
||
|
|
* Use pathological test matrices to test CLATPS.
|
||
|
|
*
|
||
|
|
DO 100 IMAT = NTYPE1 + 1, NTYPES
|
||
|
|
*
|
||
|
|
* Do the tests only if DOTYPE( IMAT ) is true.
|
||
|
|
*
|
||
|
|
IF( .NOT.DOTYPE( IMAT ) )
|
||
|
|
$ GO TO 100
|
||
|
|
*
|
||
|
|
DO 90 IUPLO = 1, 2
|
||
|
|
*
|
||
|
|
* Do first for UPLO = 'U', then for UPLO = 'L'
|
||
|
|
*
|
||
|
|
UPLO = UPLOS( IUPLO )
|
||
|
|
DO 80 ITRAN = 1, NTRAN
|
||
|
|
*
|
||
|
|
* Do for op(A) = A, A**T, or A**H.
|
||
|
|
*
|
||
|
|
TRANS = TRANSS( ITRAN )
|
||
|
|
*
|
||
|
|
* Call CLATTP to generate a triangular test matrix.
|
||
|
|
*
|
||
|
|
SRNAMT = 'CLATTP'
|
||
|
|
CALL CLATTP( IMAT, UPLO, TRANS, DIAG, ISEED, N, AP, X,
|
||
|
|
$ WORK, RWORK, INFO )
|
||
|
|
*
|
||
|
|
*+ TEST 8
|
||
|
|
* Solve the system op(A)*x = b.
|
||
|
|
*
|
||
|
|
SRNAMT = 'CLATPS'
|
||
|
|
CALL CCOPY( N, X, 1, B, 1 )
|
||
|
|
CALL CLATPS( UPLO, TRANS, DIAG, 'N', N, AP, B, SCALE,
|
||
|
|
$ RWORK, INFO )
|
||
|
|
*
|
||
|
|
* Check error code from CLATPS.
|
||
|
|
*
|
||
|
|
IF( INFO.NE.0 )
|
||
|
|
$ CALL ALAERH( PATH, 'CLATPS', INFO, 0,
|
||
|
|
$ UPLO // TRANS // DIAG // 'N', N, N,
|
||
|
|
$ -1, -1, -1, IMAT, NFAIL, NERRS, NOUT )
|
||
|
|
*
|
||
|
|
CALL CTPT03( UPLO, TRANS, DIAG, N, 1, AP, SCALE,
|
||
|
|
$ RWORK, ONE, B, LDA, X, LDA, WORK,
|
||
|
|
$ RESULT( 8 ) )
|
||
|
|
*
|
||
|
|
*+ TEST 9
|
||
|
|
* Solve op(A)*x = b again with NORMIN = 'Y'.
|
||
|
|
*
|
||
|
|
CALL CCOPY( N, X, 1, B( N+1 ), 1 )
|
||
|
|
CALL CLATPS( UPLO, TRANS, DIAG, 'Y', N, AP, B( N+1 ),
|
||
|
|
$ SCALE, RWORK, INFO )
|
||
|
|
*
|
||
|
|
* Check error code from CLATPS.
|
||
|
|
*
|
||
|
|
IF( INFO.NE.0 )
|
||
|
|
$ CALL ALAERH( PATH, 'CLATPS', INFO, 0,
|
||
|
|
$ UPLO // TRANS // DIAG // 'Y', N, N,
|
||
|
|
$ -1, -1, -1, IMAT, NFAIL, NERRS, NOUT )
|
||
|
|
*
|
||
|
|
CALL CTPT03( UPLO, TRANS, DIAG, N, 1, AP, SCALE,
|
||
|
|
$ RWORK, ONE, B( N+1 ), LDA, X, LDA, WORK,
|
||
|
|
$ RESULT( 9 ) )
|
||
|
|
*
|
||
|
|
* Print information about the tests that did not pass
|
||
|
|
* the threshold.
|
||
|
|
*
|
||
|
|
IF( RESULT( 8 ).GE.THRESH ) THEN
|
||
|
|
IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
|
||
|
|
$ CALL ALAHD( NOUT, PATH )
|
||
|
|
WRITE( NOUT, FMT = 9996 )'CLATPS', UPLO, TRANS,
|
||
|
|
$ DIAG, 'N', N, IMAT, 8, RESULT( 8 )
|
||
|
|
NFAIL = NFAIL + 1
|
||
|
|
END IF
|
||
|
|
IF( RESULT( 9 ).GE.THRESH ) THEN
|
||
|
|
IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
|
||
|
|
$ CALL ALAHD( NOUT, PATH )
|
||
|
|
WRITE( NOUT, FMT = 9996 )'CLATPS', UPLO, TRANS,
|
||
|
|
$ DIAG, 'Y', N, IMAT, 9, RESULT( 9 )
|
||
|
|
NFAIL = NFAIL + 1
|
||
|
|
END IF
|
||
|
|
NRUN = NRUN + 2
|
||
|
|
80 CONTINUE
|
||
|
|
90 CONTINUE
|
||
|
|
100 CONTINUE
|
||
|
|
110 CONTINUE
|
||
|
|
*
|
||
|
|
* Print a summary of the results.
|
||
|
|
*
|
||
|
|
CALL ALASUM( PATH, NOUT, NFAIL, NRUN, NERRS )
|
||
|
|
*
|
||
|
|
9999 FORMAT( ' UPLO=''', A1, ''', DIAG=''', A1, ''', N=', I5,
|
||
|
|
$ ', type ', I2, ', test(', I2, ')= ', G12.5 )
|
||
|
|
9998 FORMAT( ' UPLO=''', A1, ''', TRANS=''', A1, ''', DIAG=''', A1,
|
||
|
|
$ ''', N=', I5, ''', NRHS=', I5, ', type ', I2, ', test(',
|
||
|
|
$ I2, ')= ', G12.5 )
|
||
|
|
9997 FORMAT( 1X, A, '( ''', A1, ''', ''', A1, ''', ''', A1, ''',',
|
||
|
|
$ I5, ', ... ), type ', I2, ', test(', I2, ')=', G12.5 )
|
||
|
|
9996 FORMAT( 1X, A, '( ''', A1, ''', ''', A1, ''', ''', A1, ''', ''',
|
||
|
|
$ A1, ''',', I5, ', ... ), type ', I2, ', test(', I2, ')=',
|
||
|
|
$ G12.5 )
|
||
|
|
RETURN
|
||
|
|
*
|
||
|
|
* End of CCHKTP
|
||
|
|
*
|
||
|
|
END
|