SUBROUTINE SERRED( 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
* =======
*
* SERRED tests the error exits for the eigenvalue driver routines for
* REAL matrices:
*
* PATH driver description
* ---- ------ -----------
* SEV SGEEV find eigenvalues/eigenvectors for nonsymmetric A
* SES SGEES find eigenvalues/Schur form for nonsymmetric A
* SVX SGEEVX SGEEV + balancing and condition estimation
* SSX SGEESX SGEES + balancing and condition estimation
* SBD SGESVD compute SVD of an M-by-N matrix A
* SGESDD 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
REAL ONE, ZERO
PARAMETER ( NMAX = 4, 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( 2*NMAX )
REAL 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, SGEES, SGEESX, SGEEV, SGEEVX, SGESDD,
$ SGESVD
* ..
* .. External Functions ..
LOGICAL LSAMEN, SSLECT
EXTERNAL LSAMEN, SSLECT
* ..
* .. Arrays in Common ..
LOGICAL SELVAL( 20 )
REAL SELWI( 20 ), SELWR( 20 )
* ..
* .. Scalars in Common ..
LOGICAL LERR, OK
CHARACTER*6 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 SGEEV
*
SRNAMT = 'SGEEV '
INFOT = 1
CALL SGEEV( 'X', 'N', 0, A, 1, WR, WI, VL, 1, VR, 1, W, 1,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGEEV( 'N', 'X', 0, A, 1, WR, WI, VL, 1, VR, 1, W, 1,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGEEV( 'N', 'N', -1, A, 1, WR, WI, VL, 1, VR, 1, W, 1,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGEEV( 'N', 'N', 2, A, 1, WR, WI, VL, 1, VR, 1, W, 6,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL SGEEV( 'V', 'N', 2, A, 2, WR, WI, VL, 1, VR, 1, W, 8,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL SGEEV( 'N', 'V', 2, A, 2, WR, WI, VL, 1, VR, 1, W, 8,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL SGEEV( 'V', 'V', 1, A, 1, WR, WI, VL, 1, VR, 1, W, 3,
$ INFO )
CALL CHKXER( 'SGEEV ', INFOT, NOUT, LERR, OK )
NT = NT + 7
*
ELSE IF( LSAMEN( 2, C2, 'ES' ) ) THEN
*
* Test SGEES
*
SRNAMT = 'SGEES '
INFOT = 1
CALL SGEES( 'X', 'N', SSLECT, 0, A, 1, SDIM, WR, WI, VL, 1, W,
$ 1, B, INFO )
CALL CHKXER( 'SGEES ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGEES( 'N', 'X', SSLECT, 0, A, 1, SDIM, WR, WI, VL, 1, W,
$ 1, B, INFO )
CALL CHKXER( 'SGEES ', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL SGEES( 'N', 'S', SSLECT, -1, A, 1, SDIM, WR, WI, VL, 1, W,
$ 1, B, INFO )
CALL CHKXER( 'SGEES ', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL SGEES( 'N', 'S', SSLECT, 2, A, 1, SDIM, WR, WI, VL, 1, W,
$ 6, B, INFO )
CALL CHKXER( 'SGEES ', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL SGEES( 'V', 'S', SSLECT, 2, A, 2, SDIM, WR, WI, VL, 1, W,
$ 6, B, INFO )
CALL CHKXER( 'SGEES ', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL SGEES( 'N', 'S', SSLECT, 1, A, 1, SDIM, WR, WI, VL, 1, W,
$ 2, B, INFO )
CALL CHKXER( 'SGEES ', INFOT, NOUT, LERR, OK )
NT = NT + 6
*
ELSE IF( LSAMEN( 2, C2, 'VX' ) ) THEN
*
* Test SGEEVX
*
SRNAMT = 'SGEEVX'
INFOT = 1
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 21
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 21
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
INFOT = 21
CALL SGEEVX( '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( 'SGEEVX', INFOT, NOUT, LERR, OK )
NT = NT + 11
*
ELSE IF( LSAMEN( 2, C2, 'SX' ) ) THEN
*
* Test SGEESX
*
SRNAMT = 'SGEESX'
INFOT = 1
CALL SGEESX( 'X', 'N', SSLECT, 'N', 0, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGEESX( 'N', 'X', SSLECT, 'N', 0, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL SGEESX( 'N', 'N', SSLECT, 'X', 0, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGEESX( 'N', 'N', SSLECT, 'N', -1, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 1, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SGEESX( 'N', 'N', SSLECT, 'N', 2, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 6, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL SGEESX( 'V', 'N', SSLECT, 'N', 2, A, 2, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 6, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
INFOT = 16
CALL SGEESX( 'N', 'N', SSLECT, 'N', 1, A, 1, SDIM, WR, WI, VL,
$ 1, R1( 1 ), R2( 1 ), W, 2, IW, 1, B, INFO )
CALL CHKXER( 'SGEESX', INFOT, NOUT, LERR, OK )
NT = NT + 7
*
ELSE IF( LSAMEN( 2, C2, 'BD' ) ) THEN
*
* Test SGESVD
*
SRNAMT = 'SGESVD'
INFOT = 1
CALL SGESVD( 'X', 'N', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGESVD( 'N', 'X', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGESVD( 'O', 'O', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGESVD( 'N', 'N', -1, 0, A, 1, S, U, 1, VT, 1, W, 1,
$ INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL SGESVD( 'N', 'N', 0, -1, A, 1, S, U, 1, VT, 1, W, 1,
$ INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL SGESVD( 'N', 'N', 2, 1, A, 1, S, U, 1, VT, 1, W, 5, INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL SGESVD( 'A', 'N', 2, 1, A, 2, S, U, 1, VT, 1, W, 5, INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL SGESVD( 'N', 'A', 1, 2, A, 1, S, U, 1, VT, 1, W, 5, INFO )
CALL CHKXER( 'SGESVD', INFOT, NOUT, LERR, OK )
NT = NT + 8
*
* Test SGESDD
*
SRNAMT = 'SGESDD'
INFOT = 1
CALL SGESDD( 'X', 0, 0, A, 1, S, U, 1, VT, 1, W, 1, IW, INFO )
CALL CHKXER( 'SGESDD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGESDD( 'N', -1, 0, A, 1, S, U, 1, VT, 1, W, 1, IW, INFO )
CALL CHKXER( 'SGESDD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGESDD( 'N', 0, -1, A, 1, S, U, 1, VT, 1, W, 1, IW, INFO )
CALL CHKXER( 'SGESDD', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGESDD( 'N', 2, 1, A, 1, S, U, 1, VT, 1, W, 5, IW, INFO )
CALL CHKXER( 'SGESDD', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL SGESDD( 'A', 2, 1, A, 2, S, U, 1, VT, 1, W, 5, IW, INFO )
CALL CHKXER( 'SGESDD', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL SGESDD( 'A', 1, 2, A, 1, S, U, 1, VT, 1, W, 5, IW, INFO )
CALL CHKXER( 'SGESDD', INFOT, NOUT, LERR, OK )
NT = NT + 6
END IF
*
* Print a summary line.
*
IF( .NOT.LSAMEN( 2, C2, 'BD' ) ) THEN
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )PATH, NT
ELSE
WRITE( NOUT, FMT = 9998 )PATH
END IF
END IF
*
9999 FORMAT( 1X, A3, ' routines passed the tests of the error exits (',
$ I3, ' tests done)' )
9998 FORMAT( ' *** ', A3, ' routines failed the tests of the error ex',
$ 'its ***' )
RETURN
*
* End of SERRED
*
END