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