SUBROUTINE CERRED( 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
* =======
*
* CERRED tests the error exits for the eigenvalue driver routines for
* REAL matrices:
*
* PATH driver description
* ---- ------ -----------
* CEV CGEEV find eigenvalues/eigenvectors for nonsymmetric A
* CES CGEES find eigenvalues/Schur form for nonsymmetric A
* CVX CGEEVX CGEEV + balancing and condition estimation
* CSX CGEESX CGEES + balancing and condition estimation
* CBD CGESVD compute SVD of an M-by-N matrix A
* CGESDD 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, LW
PARAMETER ( NMAX = 4, LW = 5*NMAX )
REAL ONE, ZERO
PARAMETER ( ONE = 1.0E0, ZERO = 0.0E0 )
* ..
* .. Local Scalars ..
CHARACTER*2 C2
INTEGER I, IHI, ILO, INFO, J, NT, SDIM
REAL ABNRM
* ..
* .. Local Arrays ..
LOGICAL B( NMAX )
INTEGER IW( 4*NMAX )
REAL R1( NMAX ), R2( NMAX ), RW( LW ), S( NMAX )
COMPLEX A( NMAX, NMAX ), U( NMAX, NMAX ),
$ VL( NMAX, NMAX ), VR( NMAX, NMAX ),
$ VT( NMAX, NMAX ), W( 4*NMAX ), X( NMAX )
* ..
* .. External Subroutines ..
EXTERNAL CGEES, CGEESX, CGEEV, CGEEVX, CGESDD, CGESVD,
$ CHKXER
* ..
* .. External Functions ..
LOGICAL CSLECT, LSAMEN
EXTERNAL CSLECT, LSAMEN
* ..
* .. Intrinsic Functions ..
INTRINSIC LEN_TRIM
* ..
* .. Arrays in Common ..
LOGICAL SELVAL( 20 )
REAL 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 CGEEV
*
SRNAMT = 'CGEEV '
INFOT = 1
CALL CGEEV( 'X', 'N', 0, A, 1, X, VL, 1, VR, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGEEV( 'N', 'X', 0, A, 1, X, VL, 1, VR, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL CGEEV( 'N', 'N', -1, A, 1, X, VL, 1, VR, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL CGEEV( 'N', 'N', 2, A, 1, X, VL, 1, VR, 1, W, 4, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL CGEEV( 'V', 'N', 2, A, 2, X, VL, 1, VR, 1, W, 4, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL CGEEV( 'N', 'V', 2, A, 2, X, VL, 1, VR, 1, W, 4, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL CGEEV( 'V', 'V', 1, A, 1, X, VL, 1, VR, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGEEV ', INFOT, NOUT, LERR, OK )
NT = NT + 7
*
ELSE IF( LSAMEN( 2, C2, 'ES' ) ) THEN
*
* Test CGEES
*
SRNAMT = 'CGEES '
INFOT = 1
CALL CGEES( 'X', 'N', CSLECT, 0, A, 1, SDIM, X, VL, 1, W, 1,
$ RW, B, INFO )
CALL CHKXER( 'CGEES ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGEES( 'N', 'X', CSLECT, 0, A, 1, SDIM, X, VL, 1, W, 1,
$ RW, B, INFO )
CALL CHKXER( 'CGEES ', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL CGEES( 'N', 'S', CSLECT, -1, A, 1, SDIM, X, VL, 1, W, 1,
$ RW, B, INFO )
CALL CHKXER( 'CGEES ', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL CGEES( 'N', 'S', CSLECT, 2, A, 1, SDIM, X, VL, 1, W, 4,
$ RW, B, INFO )
CALL CHKXER( 'CGEES ', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL CGEES( 'V', 'S', CSLECT, 2, A, 2, SDIM, X, VL, 1, W, 4,
$ RW, B, INFO )
CALL CHKXER( 'CGEES ', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL CGEES( 'N', 'S', CSLECT, 1, A, 1, SDIM, X, VL, 1, W, 1,
$ RW, B, INFO )
CALL CHKXER( 'CGEES ', INFOT, NOUT, LERR, OK )
NT = NT + 6
*
ELSE IF( LSAMEN( 2, C2, 'VX' ) ) THEN
*
* Test CGEEVX
*
SRNAMT = 'CGEEVX'
INFOT = 1
CALL CGEEVX( 'X', 'N', 'N', 'N', 0, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 1, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGEEVX( 'N', 'X', 'N', 'N', 0, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 1, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL CGEEVX( 'N', 'N', 'X', 'N', 0, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 1, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL CGEEVX( 'N', 'N', 'N', 'X', 0, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 1, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL CGEEVX( 'N', 'N', 'N', 'N', -1, A, 1, X, VL, 1, VR, 1,
$ ILO, IHI, S, ABNRM, R1, R2, W, 1, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL CGEEVX( 'N', 'N', 'N', 'N', 2, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 4, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL CGEEVX( 'N', 'V', 'N', 'N', 2, A, 2, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 4, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL CGEEVX( 'N', 'N', 'V', 'N', 2, A, 2, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 4, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 20
CALL CGEEVX( 'N', 'N', 'N', 'N', 1, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 1, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 20
CALL CGEEVX( 'N', 'N', 'V', 'V', 1, A, 1, X, VL, 1, VR, 1, ILO,
$ IHI, S, ABNRM, R1, R2, W, 2, RW, INFO )
CALL CHKXER( 'CGEEVX', INFOT, NOUT, LERR, OK )
NT = NT + 10
*
ELSE IF( LSAMEN( 2, C2, 'SX' ) ) THEN
*
* Test CGEESX
*
SRNAMT = 'CGEESX'
INFOT = 1
CALL CGEESX( 'X', 'N', CSLECT, 'N', 0, A, 1, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 1, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGEESX( 'N', 'X', CSLECT, 'N', 0, A, 1, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 1, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL CGEESX( 'N', 'N', CSLECT, 'X', 0, A, 1, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 1, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL CGEESX( 'N', 'N', CSLECT, 'N', -1, A, 1, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 1, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL CGEESX( 'N', 'N', CSLECT, 'N', 2, A, 1, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 4, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL CGEESX( 'V', 'N', CSLECT, 'N', 2, A, 2, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 4, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
INFOT = 15
CALL CGEESX( 'N', 'N', CSLECT, 'N', 1, A, 1, SDIM, X, VL, 1,
$ R1( 1 ), R2( 1 ), W, 1, RW, B, INFO )
CALL CHKXER( 'CGEESX', INFOT, NOUT, LERR, OK )
NT = NT + 7
*
ELSE IF( LSAMEN( 2, C2, 'BD' ) ) THEN
*
* Test CGESVD
*
SRNAMT = 'CGESVD'
INFOT = 1
CALL CGESVD( 'X', 'N', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGESVD( 'N', 'X', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGESVD( 'O', 'O', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL CGESVD( 'N', 'N', -1, 0, A, 1, S, U, 1, VT, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL CGESVD( 'N', 'N', 0, -1, A, 1, S, U, 1, VT, 1, W, 1, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL CGESVD( 'N', 'N', 2, 1, A, 1, S, U, 1, VT, 1, W, 5, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL CGESVD( 'A', 'N', 2, 1, A, 2, S, U, 1, VT, 1, W, 5, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL CGESVD( 'N', 'A', 1, 2, A, 1, S, U, 1, VT, 1, W, 5, RW,
$ INFO )
CALL CHKXER( 'CGESVD', INFOT, NOUT, LERR, OK )
NT = NT + 8
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )SRNAMT( 1:LEN_TRIM( SRNAMT ) ),
$ NT
ELSE
WRITE( NOUT, FMT = 9998 )
END IF
*
* Test CGESDD
*
SRNAMT = 'CGESDD'
INFOT = 1
CALL CGESDD( 'X', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, RW, IW,
$ INFO )
CALL CHKXER( 'CGESDD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL CGESDD( 'N', -1, 0, A, 1, S, U, 1, VT, 1, W, 1, RW, IW,
$ INFO )
CALL CHKXER( 'CGESDD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL CGESDD( 'N', 0, -1, A, 1, S, U, 1, VT, 1, W, 1, RW, IW,
$ INFO )
CALL CHKXER( 'CGESDD', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL CGESDD( 'N', 2, 1, A, 1, S, U, 1, VT, 1, W, 5, RW, IW,
$ INFO )
CALL CHKXER( 'CGESDD', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL CGESDD( 'A', 2, 1, A, 2, S, U, 1, VT, 1, W, 5, RW, IW,
$ INFO )
CALL CHKXER( 'CGESDD', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL CGESDD( 'A', 1, 2, A, 1, S, U, 1, VT, 1, W, 5, RW, IW,
$ INFO )
CALL CHKXER( 'CGESDD', INFOT, NOUT, LERR, OK )
NT = NT - 2
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )SRNAMT( 1: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: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 CERRED
*
END