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lapack/TESTING/EIG/derred.f
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SUBROUTINE DERRED( PATH, NUNIT )
*
* -- LAPACK test routine (version 3.1) --
* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
* November 2006
*
* .. Scalar Arguments ..
CHARACTER*3 PATH
INTEGER NUNIT
* ..
*
* Purpose
* =======
*
* DERRED tests the error exits for the eigenvalue driver routines for
* DOUBLE PRECISION matrices:
*
* PATH driver description
* ---- ------ -----------
* SEV DGEEV find eigenvalues/eigenvectors for nonsymmetric A
* SES DGEES find eigenvalues/Schur form for nonsymmetric A
* SVX DGEEVX SGEEV + balancing and condition estimation
* SSX DGEESX SGEES + balancing and condition estimation
* DBD DGESVD compute SVD of an M-by-N matrix A
* DGESDD compute SVD of an M-by-N matrix A (by divide and
* conquer)
*
* Arguments
* =========
*
* PATH (input) CHARACTER*3
* The LAPACK path name for the routines to be tested.
*
* NUNIT (input) INTEGER
* The unit number for output.
*
* =====================================================================
*
* .. Parameters ..
INTEGER NMAX
DOUBLE PRECISION ONE, ZERO
PARAMETER ( NMAX = 4, ONE = 1.0D0, ZERO = 0.0D0 )
* ..
* .. Local Scalars ..
CHARACTER*2 C2
INTEGER I, IHI, ILO, INFO, J, NT, SDIM
DOUBLE PRECISION ABNRM
* ..
* .. Local Arrays ..
LOGICAL B( NMAX )
INTEGER IW( 2*NMAX )
DOUBLE PRECISION A( NMAX, NMAX ), R1( NMAX ), R2( NMAX ),
$ S( NMAX ), U( NMAX, NMAX ), VL( NMAX, NMAX ),
$ VR( NMAX, NMAX ), VT( NMAX, NMAX ),
$ W( 4*NMAX ), WI( NMAX ), WR( NMAX )
* ..
* .. External Subroutines ..
EXTERNAL CHKXER, DGEES, DGEESX, DGEEV, DGEEVX, DGESDD,
$ DGESVD
* ..
* .. External Functions ..
INTEGER ILA_LEN_TRIM
EXTERNAL ILA_LEN_TRIM
LOGICAL DSLECT, LSAMEN
EXTERNAL DSLECT, LSAMEN
* ..
* .. Arrays in Common ..
LOGICAL SELVAL( 20 )
DOUBLE PRECISION SELWI( 20 ), SELWR( 20 )
* ..
* .. Scalars in Common ..
LOGICAL LERR, OK
CHARACTER(32) SRNAMT
INTEGER INFOT, NOUT, SELDIM, SELOPT
* ..
* .. Common blocks ..
COMMON / INFOC / INFOT, NOUT, OK, LERR
COMMON / SRNAMC / SRNAMT
COMMON / SSLCT / SELOPT, SELDIM, SELVAL, SELWR, SELWI
* ..
* .. Executable Statements ..
*
NOUT = NUNIT
WRITE( NOUT, FMT = * )
C2 = PATH( 2: 3 )
*
* Initialize A
*
DO 20 J = 1, NMAX
DO 10 I = 1, NMAX
A( I, J ) = ZERO
10 CONTINUE
20 CONTINUE
DO 30 I = 1, NMAX
A( I, I ) = ONE
30 CONTINUE
OK = .TRUE.
NT = 0
*
IF( LSAMEN( 2, C2, 'EV' ) ) THEN
*
* Test DGEEV
*
SRNAMT = 'DGEEV '
INFOT = 1
CALL DGEEV( 'X', 'N', 0, A, 1, WR, WI, VL, 1, VR, 1, W, 1,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGEEV( 'N', 'X', 0, A, 1, WR, WI, VL, 1, VR, 1, W, 1,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL DGEEV( 'N', 'N', -1, A, 1, WR, WI, VL, 1, VR, 1, W, 1,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL DGEEV( 'N', 'N', 2, A, 1, WR, WI, VL, 1, VR, 1, W, 6,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL DGEEV( 'V', 'N', 2, A, 2, WR, WI, VL, 1, VR, 1, W, 8,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL DGEEV( 'N', 'V', 2, A, 2, WR, WI, VL, 1, VR, 1, W, 8,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL DGEEV( 'V', 'V', 1, A, 1, WR, WI, VL, 1, VR, 1, W, 3,
$ INFO )
CALL CHKXER( 'DGEEV ', INFOT, NOUT, LERR, OK )
NT = NT + 7
*
ELSE IF( LSAMEN( 2, C2, 'ES' ) ) THEN
*
* Test DGEES
*
SRNAMT = 'DGEES '
INFOT = 1
CALL DGEES( 'X', 'N', DSLECT, 0, A, 1, SDIM, WR, WI, VL, 1, W,
$ 1, B, INFO )
CALL CHKXER( 'DGEES ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGEES( 'N', 'X', DSLECT, 0, A, 1, SDIM, WR, WI, VL, 1, W,
$ 1, B, INFO )
CALL CHKXER( 'DGEES ', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL DGEES( 'N', 'S', DSLECT, -1, A, 1, SDIM, WR, WI, VL, 1, W,
$ 1, B, INFO )
CALL CHKXER( 'DGEES ', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL DGEES( 'N', 'S', DSLECT, 2, A, 1, SDIM, WR, WI, VL, 1, W,
$ 6, B, INFO )
CALL CHKXER( 'DGEES ', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL DGEES( 'V', 'S', DSLECT, 2, A, 2, SDIM, WR, WI, VL, 1, W,
$ 6, B, INFO )
CALL CHKXER( 'DGEES ', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL DGEES( 'N', 'S', DSLECT, 1, A, 1, SDIM, WR, WI, VL, 1, W,
$ 2, B, INFO )
CALL CHKXER( 'DGEES ', INFOT, NOUT, LERR, OK )
NT = NT + 6
*
ELSE IF( LSAMEN( 2, C2, 'VX' ) ) THEN
*
* Test DGEEVX
*
SRNAMT = 'DGEEVX'
INFOT = 1
CALL DGEEVX( 'X', 'N', 'N', 'N', 0, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGEEVX( 'N', 'X', 'N', 'N', 0, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL DGEEVX( 'N', 'N', 'X', 'N', 0, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL DGEEVX( 'N', 'N', 'N', 'X', 0, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL DGEEVX( 'N', 'N', 'N', 'N', -1, A, 1, WR, WI, VL, 1, VR,
$ 1, ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL DGEEVX( 'N', 'N', 'N', 'N', 2, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL DGEEVX( 'N', 'V', 'N', 'N', 2, A, 2, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 6, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL DGEEVX( 'N', 'N', 'V', 'N', 2, A, 2, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 6, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 21
CALL DGEEVX( 'N', 'N', 'N', 'N', 1, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 21
CALL DGEEVX( 'N', 'V', 'N', 'N', 1, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 2, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 21
CALL DGEEVX( 'N', 'N', 'V', 'V', 1, A, 1, WR, WI, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 3, IW, INFO )
CALL CHKXER( 'DGEEVX', INFOT, NOUT, LERR, OK )
NT = NT + 11
*
ELSE IF( LSAMEN( 2, C2, 'SX' ) ) THEN
*
* Test DGEESX
*
SRNAMT = 'DGEESX'
INFOT = 1
CALL DGEESX( 'X', 'N', DSLECT, 'N', 0, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGEESX( 'N', 'X', DSLECT, 'N', 0, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL DGEESX( 'N', 'N', DSLECT, 'X', 0, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL DGEESX( 'N', 'N', DSLECT, 'N', -1, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL DGEESX( 'N', 'N', DSLECT, 'N', 2, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 6, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL DGEESX( 'V', 'N', DSLECT, 'N', 2, A, 2, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 6, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
INFOT = 16
CALL DGEESX( 'N', 'N', DSLECT, 'N', 1, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 2, IW, 1, B, INFO )
CALL CHKXER( 'DGEESX', INFOT, NOUT, LERR, OK )
NT = NT + 7
*
ELSE IF( LSAMEN( 2, C2, 'BD' ) ) THEN
*
* Test DGESVD
*
SRNAMT = 'DGESVD'
INFOT = 1
CALL DGESVD( 'X', 'N', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGESVD( 'N', 'X', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGESVD( 'O', 'O', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL DGESVD( 'N', 'N', -1, 0, A, 1, S, U, 1, VT, 1, W, 1,
$ INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL DGESVD( 'N', 'N', 0, -1, A, 1, S, U, 1, VT, 1, W, 1,
$ INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL DGESVD( 'N', 'N', 2, 1, A, 1, S, U, 1, VT, 1, W, 5, INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL DGESVD( 'A', 'N', 2, 1, A, 2, S, U, 1, VT, 1, W, 5, INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL DGESVD( 'N', 'A', 1, 2, A, 1, S, U, 1, VT, 1, W, 5, INFO )
CALL CHKXER( 'DGESVD', INFOT, NOUT, LERR, OK )
NT = NT + 8
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )SRNAMT(1:ILA_LEN_TRIM(SRNAMT)), NT
ELSE
WRITE( NOUT, FMT = 9998 )
END IF
*
* Test DGESDD
*
SRNAMT = 'DGESDD'
INFOT = 1
CALL DGESDD( 'X', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, IW, INFO )
CALL CHKXER( 'DGESDD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL DGESDD( 'N', -1, 0, A, 1, S, U, 1, VT, 1, W, 1, IW, INFO )
CALL CHKXER( 'DGESDD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL DGESDD( 'N', 0, -1, A, 1, S, U, 1, VT, 1, W, 1, IW, INFO )
CALL CHKXER( 'DGESDD', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL DGESDD( 'N', 2, 1, A, 1, S, U, 1, VT, 1, W, 5, IW, INFO )
CALL CHKXER( 'DGESDD', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL DGESDD( 'A', 2, 1, A, 2, S, U, 1, VT, 1, W, 5, IW, INFO )
CALL CHKXER( 'DGESDD', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL DGESDD( 'A', 1, 2, A, 1, S, U, 1, VT, 1, W, 5, IW, INFO )
CALL CHKXER( 'DGESDD', INFOT, NOUT, LERR, OK )
NT = NT - 2
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )SRNAMT(1:ILA_LEN_TRIM(SRNAMT)), NT
ELSE
WRITE( NOUT, FMT = 9998 )
END IF
END IF
*
* Print a summary line.
*
IF( .NOT.LSAMEN( 2, C2, 'BD' ) ) THEN
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )SRNAMT(1:ILA_LEN_TRIM(SRNAMT)), NT
ELSE
WRITE( NOUT, FMT = 9998 )
END IF
END IF
*
9999 FORMAT( 1X, A, ' passed the tests of the error exits (', I3,
$ ' tests done)' )
9998 FORMAT( ' *** ', A, ' failed the tests of the error exits ***' )
RETURN
*
* End of DERRED
END
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