2094 lines
		
	
	
		
			73 KiB
		
	
	
	
		
			Fortran
		
	
	
	
			
		
		
	
	
			2094 lines
		
	
	
		
			73 KiB
		
	
	
	
		
			Fortran
		
	
	
	
| *> \brief \b ZDRVST
 | |
| *
 | |
| *  =========== DOCUMENTATION ===========
 | |
| *
 | |
| * Online html documentation available at
 | |
| *            http://www.netlib.org/lapack/explore-html/
 | |
| *
 | |
| *  Definition:
 | |
| *  ===========
 | |
| *
 | |
| *       SUBROUTINE ZDRVST( NSIZES, NN, NTYPES, DOTYPE, ISEED, THRESH,
 | |
| *                          NOUNIT, A, LDA, D1, D2, D3, WA1, WA2, WA3, U,
 | |
| *                          LDU, V, TAU, Z, WORK, LWORK, RWORK, LRWORK,
 | |
| *                          IWORK, LIWORK, RESULT, INFO )
 | |
| *
 | |
| *       .. Scalar Arguments ..
 | |
| *       INTEGER            INFO, LDA, LDU, LIWORK, LRWORK, LWORK, NOUNIT,
 | |
| *      $                   NSIZES, NTYPES
 | |
| *       DOUBLE PRECISION   THRESH
 | |
| *       ..
 | |
| *       .. Array Arguments ..
 | |
| *       LOGICAL            DOTYPE( * )
 | |
| *       INTEGER            ISEED( 4 ), IWORK( * ), NN( * )
 | |
| *       DOUBLE PRECISION   D1( * ), D2( * ), D3( * ), RESULT( * ),
 | |
| *      $                   RWORK( * ), WA1( * ), WA2( * ), WA3( * )
 | |
| *       COMPLEX*16         A( LDA, * ), TAU( * ), U( LDU, * ),
 | |
| *      $                   V( LDU, * ), WORK( * ), Z( LDU, * )
 | |
| *       ..
 | |
| *
 | |
| *
 | |
| *> \par Purpose:
 | |
| *  =============
 | |
| *>
 | |
| *> \verbatim
 | |
| *>
 | |
| *>      ZDRVST  checks the Hermitian eigenvalue problem drivers.
 | |
| *>
 | |
| *>              ZHEEVD computes all eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix,
 | |
| *>              using a divide-and-conquer algorithm.
 | |
| *>
 | |
| *>              ZHEEVX computes selected eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix.
 | |
| *>
 | |
| *>              ZHEEVR computes selected eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix
 | |
| *>              using the Relatively Robust Representation where it can.
 | |
| *>
 | |
| *>              ZHPEVD computes all eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix in packed
 | |
| *>              storage, using a divide-and-conquer algorithm.
 | |
| *>
 | |
| *>              ZHPEVX computes selected eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix in packed
 | |
| *>              storage.
 | |
| *>
 | |
| *>              ZHBEVD computes all eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian band matrix,
 | |
| *>              using a divide-and-conquer algorithm.
 | |
| *>
 | |
| *>              ZHBEVX computes selected eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian band matrix.
 | |
| *>
 | |
| *>              ZHEEV computes all eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix.
 | |
| *>
 | |
| *>              ZHPEV computes all eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian matrix in packed
 | |
| *>              storage.
 | |
| *>
 | |
| *>              ZHBEV computes all eigenvalues and, optionally,
 | |
| *>              eigenvectors of a complex Hermitian band matrix.
 | |
| *>
 | |
| *>      When ZDRVST is called, a number of matrix "sizes" ("n's") and a
 | |
| *>      number of matrix "types" are specified.  For each size ("n")
 | |
| *>      and each type of matrix, one matrix will be generated and used
 | |
| *>      to test the appropriate drivers.  For each matrix and each
 | |
| *>      driver routine called, the following tests will be performed:
 | |
| *>
 | |
| *>      (1)     | A - Z D Z' | / ( |A| n ulp )
 | |
| *>
 | |
| *>      (2)     | I - Z Z' | / ( n ulp )
 | |
| *>
 | |
| *>      (3)     | D1 - D2 | / ( |D1| ulp )
 | |
| *>
 | |
| *>      where Z is the matrix of eigenvectors returned when the
 | |
| *>      eigenvector option is given and D1 and D2 are the eigenvalues
 | |
| *>      returned with and without the eigenvector option.
 | |
| *>
 | |
| *>      The "sizes" are specified by an array NN(1:NSIZES); the value of
 | |
| *>      each element NN(j) specifies one size.
 | |
| *>      The "types" are specified by a logical array DOTYPE( 1:NTYPES );
 | |
| *>      if DOTYPE(j) is .TRUE., then matrix type "j" will be generated.
 | |
| *>      Currently, the list of possible types is:
 | |
| *>
 | |
| *>      (1)  The zero matrix.
 | |
| *>      (2)  The identity matrix.
 | |
| *>
 | |
| *>      (3)  A diagonal matrix with evenly spaced entries
 | |
| *>           1, ..., ULP  and random signs.
 | |
| *>           (ULP = (first number larger than 1) - 1 )
 | |
| *>      (4)  A diagonal matrix with geometrically spaced entries
 | |
| *>           1, ..., ULP  and random signs.
 | |
| *>      (5)  A diagonal matrix with "clustered" entries 1, ULP, ..., ULP
 | |
| *>           and random signs.
 | |
| *>
 | |
| *>      (6)  Same as (4), but multiplied by SQRT( overflow threshold )
 | |
| *>      (7)  Same as (4), but multiplied by SQRT( underflow threshold )
 | |
| *>
 | |
| *>      (8)  A matrix of the form  U* D U, where U is unitary and
 | |
| *>           D has evenly spaced entries 1, ..., ULP with random signs
 | |
| *>           on the diagonal.
 | |
| *>
 | |
| *>      (9)  A matrix of the form  U* D U, where U is unitary and
 | |
| *>           D has geometrically spaced entries 1, ..., ULP with random
 | |
| *>           signs on the diagonal.
 | |
| *>
 | |
| *>      (10) A matrix of the form  U* D U, where U is unitary and
 | |
| *>           D has "clustered" entries 1, ULP,..., ULP with random
 | |
| *>           signs on the diagonal.
 | |
| *>
 | |
| *>      (11) Same as (8), but multiplied by SQRT( overflow threshold )
 | |
| *>      (12) Same as (8), but multiplied by SQRT( underflow threshold )
 | |
| *>
 | |
| *>      (13) Symmetric matrix with random entries chosen from (-1,1).
 | |
| *>      (14) Same as (13), but multiplied by SQRT( overflow threshold )
 | |
| *>      (15) Same as (13), but multiplied by SQRT( underflow threshold )
 | |
| *>      (16) A band matrix with half bandwidth randomly chosen between
 | |
| *>           0 and N-1, with evenly spaced eigenvalues 1, ..., ULP
 | |
| *>           with random signs.
 | |
| *>      (17) Same as (16), but multiplied by SQRT( overflow threshold )
 | |
| *>      (18) Same as (16), but multiplied by SQRT( underflow threshold )
 | |
| *> \endverbatim
 | |
| *
 | |
| *  Arguments:
 | |
| *  ==========
 | |
| *
 | |
| *> \verbatim
 | |
| *>  NSIZES  INTEGER
 | |
| *>          The number of sizes of matrices to use.  If it is zero,
 | |
| *>          ZDRVST does nothing.  It must be at least zero.
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  NN      INTEGER array, dimension (NSIZES)
 | |
| *>          An array containing the sizes to be used for the matrices.
 | |
| *>          Zero values will be skipped.  The values must be at least
 | |
| *>          zero.
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  NTYPES  INTEGER
 | |
| *>          The number of elements in DOTYPE.   If it is zero, ZDRVST
 | |
| *>          does nothing.  It must be at least zero.  If it is MAXTYP+1
 | |
| *>          and NSIZES is 1, then an additional type, MAXTYP+1 is
 | |
| *>          defined, which is to use whatever matrix is in A.  This
 | |
| *>          is only useful if DOTYPE(1:MAXTYP) is .FALSE. and
 | |
| *>          DOTYPE(MAXTYP+1) is .TRUE. .
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  DOTYPE  LOGICAL array, dimension (NTYPES)
 | |
| *>          If DOTYPE(j) is .TRUE., then for each size in NN a
 | |
| *>          matrix of that size and of type j will be generated.
 | |
| *>          If NTYPES is smaller than the maximum number of types
 | |
| *>          defined (PARAMETER MAXTYP), then types NTYPES+1 through
 | |
| *>          MAXTYP will not be generated.  If NTYPES is larger
 | |
| *>          than MAXTYP, DOTYPE(MAXTYP+1) through DOTYPE(NTYPES)
 | |
| *>          will be ignored.
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  ISEED   INTEGER array, dimension (4)
 | |
| *>          On entry ISEED specifies the seed of the random number
 | |
| *>          generator. The array elements should be between 0 and 4095;
 | |
| *>          if not they will be reduced mod 4096.  Also, ISEED(4) must
 | |
| *>          be odd.  The random number generator uses a linear
 | |
| *>          congruential sequence limited to small integers, and so
 | |
| *>          should produce machine independent random numbers. The
 | |
| *>          values of ISEED are changed on exit, and can be used in the
 | |
| *>          next call to ZDRVST to continue the same random number
 | |
| *>          sequence.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  THRESH  DOUBLE PRECISION
 | |
| *>          A test will count as "failed" if the "error", computed as
 | |
| *>          described above, exceeds THRESH.  Note that the error
 | |
| *>          is scaled to be O(1), so THRESH should be a reasonably
 | |
| *>          small multiple of 1, e.g., 10 or 100.  In particular,
 | |
| *>          it should not depend on the precision (single vs. double)
 | |
| *>          or the size of the matrix.  It must be at least zero.
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  NOUNIT  INTEGER
 | |
| *>          The FORTRAN unit number for printing out error messages
 | |
| *>          (e.g., if a routine returns IINFO not equal to 0.)
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  A       COMPLEX*16 array, dimension (LDA , max(NN))
 | |
| *>          Used to hold the matrix whose eigenvalues are to be
 | |
| *>          computed.  On exit, A contains the last matrix actually
 | |
| *>          used.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  LDA     INTEGER
 | |
| *>          The leading dimension of A.  It must be at
 | |
| *>          least 1 and at least max( NN ).
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  D1      DOUBLE PRECISION array, dimension (max(NN))
 | |
| *>          The eigenvalues of A, as computed by ZSTEQR simlutaneously
 | |
| *>          with Z.  On exit, the eigenvalues in D1 correspond with the
 | |
| *>          matrix in A.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  D2      DOUBLE PRECISION array, dimension (max(NN))
 | |
| *>          The eigenvalues of A, as computed by ZSTEQR if Z is not
 | |
| *>          computed.  On exit, the eigenvalues in D2 correspond with
 | |
| *>          the matrix in A.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  D3      DOUBLE PRECISION array, dimension (max(NN))
 | |
| *>          The eigenvalues of A, as computed by DSTERF.  On exit, the
 | |
| *>          eigenvalues in D3 correspond with the matrix in A.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  WA1     DOUBLE PRECISION array, dimension
 | |
| *>
 | |
| *>  WA2     DOUBLE PRECISION array, dimension
 | |
| *>
 | |
| *>  WA3     DOUBLE PRECISION array, dimension
 | |
| *>
 | |
| *>  U       COMPLEX*16 array, dimension (LDU, max(NN))
 | |
| *>          The unitary matrix computed by ZHETRD + ZUNGC3.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  LDU     INTEGER
 | |
| *>          The leading dimension of U, Z, and V.  It must be at
 | |
| *>          least 1 and at least max( NN ).
 | |
| *>          Not modified.
 | |
| *>
 | |
| *>  V       COMPLEX*16 array, dimension (LDU, max(NN))
 | |
| *>          The Housholder vectors computed by ZHETRD in reducing A to
 | |
| *>          tridiagonal form.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  TAU     COMPLEX*16 array, dimension (max(NN))
 | |
| *>          The Householder factors computed by ZHETRD in reducing A
 | |
| *>          to tridiagonal form.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  Z       COMPLEX*16 array, dimension (LDU, max(NN))
 | |
| *>          The unitary matrix of eigenvectors computed by ZHEEVD,
 | |
| *>          ZHEEVX, ZHPEVD, CHPEVX, ZHBEVD, and CHBEVX.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  WORK  - COMPLEX*16 array of dimension ( LWORK )
 | |
| *>           Workspace.
 | |
| *>           Modified.
 | |
| *>
 | |
| *>  LWORK - INTEGER
 | |
| *>           The number of entries in WORK.  This must be at least
 | |
| *>           2*max( NN(j), 2 )**2.
 | |
| *>           Not modified.
 | |
| *>
 | |
| *>  RWORK   DOUBLE PRECISION array, dimension (3*max(NN))
 | |
| *>           Workspace.
 | |
| *>           Modified.
 | |
| *>
 | |
| *>  LRWORK - INTEGER
 | |
| *>           The number of entries in RWORK.
 | |
| *>
 | |
| *>  IWORK   INTEGER array, dimension (6*max(NN))
 | |
| *>          Workspace.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  LIWORK - INTEGER
 | |
| *>           The number of entries in IWORK.
 | |
| *>
 | |
| *>  RESULT  DOUBLE PRECISION array, dimension (??)
 | |
| *>          The values computed by the tests described above.
 | |
| *>          The values are currently limited to 1/ulp, to avoid
 | |
| *>          overflow.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>  INFO    INTEGER
 | |
| *>          If 0, then everything ran OK.
 | |
| *>           -1: NSIZES < 0
 | |
| *>           -2: Some NN(j) < 0
 | |
| *>           -3: NTYPES < 0
 | |
| *>           -5: THRESH < 0
 | |
| *>           -9: LDA < 1 or LDA < NMAX, where NMAX is max( NN(j) ).
 | |
| *>          -16: LDU < 1 or LDU < NMAX.
 | |
| *>          -21: LWORK too small.
 | |
| *>          If  DLATMR, SLATMS, ZHETRD, DORGC3, ZSTEQR, DSTERF,
 | |
| *>              or DORMC2 returns an error code, the
 | |
| *>              absolute value of it is returned.
 | |
| *>          Modified.
 | |
| *>
 | |
| *>-----------------------------------------------------------------------
 | |
| *>
 | |
| *>       Some Local Variables and Parameters:
 | |
| *>       ---- ----- --------- --- ----------
 | |
| *>       ZERO, ONE       Real 0 and 1.
 | |
| *>       MAXTYP          The number of types defined.
 | |
| *>       NTEST           The number of tests performed, or which can
 | |
| *>                       be performed so far, for the current matrix.
 | |
| *>       NTESTT          The total number of tests performed so far.
 | |
| *>       NMAX            Largest value in NN.
 | |
| *>       NMATS           The number of matrices generated so far.
 | |
| *>       NERRS           The number of tests which have exceeded THRESH
 | |
| *>                       so far (computed by DLAFTS).
 | |
| *>       COND, IMODE     Values to be passed to the matrix generators.
 | |
| *>       ANORM           Norm of A; passed to matrix generators.
 | |
| *>
 | |
| *>       OVFL, UNFL      Overflow and underflow thresholds.
 | |
| *>       ULP, ULPINV     Finest relative precision and its inverse.
 | |
| *>       RTOVFL, RTUNFL  Square roots of the previous 2 values.
 | |
| *>               The following four arrays decode JTYPE:
 | |
| *>       KTYPE(j)        The general type (1-10) for type "j".
 | |
| *>       KMODE(j)        The MODE value to be passed to the matrix
 | |
| *>                       generator for type "j".
 | |
| *>       KMAGN(j)        The order of magnitude ( O(1),
 | |
| *>                       O(overflow^(1/2) ), O(underflow^(1/2) )
 | |
| *> \endverbatim
 | |
| *
 | |
| *  Authors:
 | |
| *  ========
 | |
| *
 | |
| *> \author Univ. of Tennessee
 | |
| *> \author Univ. of California Berkeley
 | |
| *> \author Univ. of Colorado Denver
 | |
| *> \author NAG Ltd.
 | |
| *
 | |
| *> \date December 2016
 | |
| *
 | |
| *> \ingroup complex16_eig
 | |
| *
 | |
| *  =====================================================================
 | |
|       SUBROUTINE ZDRVST( NSIZES, NN, NTYPES, DOTYPE, ISEED, THRESH,
 | |
|      $                   NOUNIT, A, LDA, D1, D2, D3, WA1, WA2, WA3, U,
 | |
|      $                   LDU, V, TAU, Z, WORK, LWORK, RWORK, LRWORK,
 | |
|      $                   IWORK, LIWORK, RESULT, INFO )
 | |
| *
 | |
| *  -- LAPACK test routine (version 3.7.0) --
 | |
| *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 | |
| *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 | |
| *     December 2016
 | |
| *
 | |
| *     .. Scalar Arguments ..
 | |
|       INTEGER            INFO, LDA, LDU, LIWORK, LRWORK, LWORK, NOUNIT,
 | |
|      $                   NSIZES, NTYPES
 | |
|       DOUBLE PRECISION   THRESH
 | |
| *     ..
 | |
| *     .. Array Arguments ..
 | |
|       LOGICAL            DOTYPE( * )
 | |
|       INTEGER            ISEED( 4 ), IWORK( * ), NN( * )
 | |
|       DOUBLE PRECISION   D1( * ), D2( * ), D3( * ), RESULT( * ),
 | |
|      $                   RWORK( * ), WA1( * ), WA2( * ), WA3( * )
 | |
|       COMPLEX*16         A( LDA, * ), TAU( * ), U( LDU, * ),
 | |
|      $                   V( LDU, * ), WORK( * ), Z( LDU, * )
 | |
| *     ..
 | |
| *
 | |
| *  =====================================================================
 | |
| *
 | |
| *
 | |
| *     .. Parameters ..
 | |
|       DOUBLE PRECISION   ZERO, ONE, TWO, TEN
 | |
|       PARAMETER          ( ZERO = 0.0D+0, ONE = 1.0D+0, TWO = 2.0D+0,
 | |
|      $                   TEN = 10.0D+0 )
 | |
|       DOUBLE PRECISION   HALF
 | |
|       PARAMETER          ( HALF = ONE / TWO )
 | |
|       COMPLEX*16         CZERO, CONE
 | |
|       PARAMETER          ( CZERO = ( 0.0D+0, 0.0D+0 ),
 | |
|      $                   CONE = ( 1.0D+0, 0.0D+0 ) )
 | |
|       INTEGER            MAXTYP
 | |
|       PARAMETER          ( MAXTYP = 18 )
 | |
| *     ..
 | |
| *     .. Local Scalars ..
 | |
|       LOGICAL            BADNN
 | |
|       CHARACTER          UPLO
 | |
|       INTEGER            I, IDIAG, IHBW, IINFO, IL, IMODE, INDWRK, INDX,
 | |
|      $                   IROW, ITEMP, ITYPE, IU, IUPLO, J, J1, J2, JCOL,
 | |
|      $                   JSIZE, JTYPE, KD, LGN, LIWEDC, LRWEDC, LWEDC,
 | |
|      $                   M, M2, M3, MTYPES, N, NERRS, NMATS, NMAX,
 | |
|      $                   NTEST, NTESTT
 | |
|       DOUBLE PRECISION   ABSTOL, ANINV, ANORM, COND, OVFL, RTOVFL,
 | |
|      $                   RTUNFL, TEMP1, TEMP2, TEMP3, ULP, ULPINV, UNFL,
 | |
|      $                   VL, VU
 | |
| *     ..
 | |
| *     .. Local Arrays ..
 | |
|       INTEGER            IDUMMA( 1 ), IOLDSD( 4 ), ISEED2( 4 ),
 | |
|      $                   ISEED3( 4 ), KMAGN( MAXTYP ), KMODE( MAXTYP ),
 | |
|      $                   KTYPE( MAXTYP )
 | |
| *     ..
 | |
| *     .. External Functions ..
 | |
|       DOUBLE PRECISION   DLAMCH, DLARND, DSXT1
 | |
|       EXTERNAL           DLAMCH, DLARND, DSXT1
 | |
| *     ..
 | |
| *     .. External Subroutines ..
 | |
|       EXTERNAL           ALASVM, DLABAD, DLAFTS, XERBLA, ZHBEV, ZHBEVD,
 | |
|      $                   ZHBEVX, ZHEEV, ZHEEVD, ZHEEVR, ZHEEVX, ZHET21,
 | |
|      $                   ZHET22, ZHPEV, ZHPEVD, ZHPEVX, ZLACPY, ZLASET,
 | |
|      $                   ZLATMR, ZLATMS
 | |
| *     ..
 | |
| *     .. Intrinsic Functions ..
 | |
|       INTRINSIC          ABS, DBLE, INT, LOG, MAX, MIN, SQRT
 | |
| *     ..
 | |
| *     .. Data statements ..
 | |
|       DATA               KTYPE / 1, 2, 5*4, 5*5, 3*8, 3*9 /
 | |
|       DATA               KMAGN / 2*1, 1, 1, 1, 2, 3, 1, 1, 1, 2, 3, 1,
 | |
|      $                   2, 3, 1, 2, 3 /
 | |
|       DATA               KMODE / 2*0, 4, 3, 1, 4, 4, 4, 3, 1, 4, 4, 0,
 | |
|      $                   0, 0, 4, 4, 4 /
 | |
| *     ..
 | |
| *     .. Executable Statements ..
 | |
| *
 | |
| *     1)      Check for errors
 | |
| *
 | |
|       NTESTT = 0
 | |
|       INFO = 0
 | |
| *
 | |
|       BADNN = .FALSE.
 | |
|       NMAX = 1
 | |
|       DO 10 J = 1, NSIZES
 | |
|          NMAX = MAX( NMAX, NN( J ) )
 | |
|          IF( NN( J ).LT.0 )
 | |
|      $      BADNN = .TRUE.
 | |
|    10 CONTINUE
 | |
| *
 | |
| *     Check for errors
 | |
| *
 | |
|       IF( NSIZES.LT.0 ) THEN
 | |
|          INFO = -1
 | |
|       ELSE IF( BADNN ) THEN
 | |
|          INFO = -2
 | |
|       ELSE IF( NTYPES.LT.0 ) THEN
 | |
|          INFO = -3
 | |
|       ELSE IF( LDA.LT.NMAX ) THEN
 | |
|          INFO = -9
 | |
|       ELSE IF( LDU.LT.NMAX ) THEN
 | |
|          INFO = -16
 | |
|       ELSE IF( 2*MAX( 2, NMAX )**2.GT.LWORK ) THEN
 | |
|          INFO = -22
 | |
|       END IF
 | |
| *
 | |
|       IF( INFO.NE.0 ) THEN
 | |
|          CALL XERBLA( 'ZDRVST', -INFO )
 | |
|          RETURN
 | |
|       END IF
 | |
| *
 | |
| *     Quick return if nothing to do
 | |
| *
 | |
|       IF( NSIZES.EQ.0 .OR. NTYPES.EQ.0 )
 | |
|      $   RETURN
 | |
| *
 | |
| *     More Important constants
 | |
| *
 | |
|       UNFL = DLAMCH( 'Safe minimum' )
 | |
|       OVFL = DLAMCH( 'Overflow' )
 | |
|       CALL DLABAD( UNFL, OVFL )
 | |
|       ULP = DLAMCH( 'Epsilon' )*DLAMCH( 'Base' )
 | |
|       ULPINV = ONE / ULP
 | |
|       RTUNFL = SQRT( UNFL )
 | |
|       RTOVFL = SQRT( OVFL )
 | |
| *
 | |
| *     Loop over sizes, types
 | |
| *
 | |
|       DO 20 I = 1, 4
 | |
|          ISEED2( I ) = ISEED( I )
 | |
|          ISEED3( I ) = ISEED( I )
 | |
|    20 CONTINUE
 | |
| *
 | |
|       NERRS = 0
 | |
|       NMATS = 0
 | |
| *
 | |
|       DO 1220 JSIZE = 1, NSIZES
 | |
|          N = NN( JSIZE )
 | |
|          IF( N.GT.0 ) THEN
 | |
|             LGN = INT( LOG( DBLE( N ) ) / LOG( TWO ) )
 | |
|             IF( 2**LGN.LT.N )
 | |
|      $         LGN = LGN + 1
 | |
|             IF( 2**LGN.LT.N )
 | |
|      $         LGN = LGN + 1
 | |
|             LWEDC = MAX( 2*N+N*N, 2*N*N )
 | |
|             LRWEDC = 1 + 4*N + 2*N*LGN + 3*N**2
 | |
|             LIWEDC = 3 + 5*N
 | |
|          ELSE
 | |
|             LWEDC = 2
 | |
|             LRWEDC = 8
 | |
|             LIWEDC = 8
 | |
|          END IF
 | |
|          ANINV = ONE / DBLE( MAX( 1, N ) )
 | |
| *
 | |
|          IF( NSIZES.NE.1 ) THEN
 | |
|             MTYPES = MIN( MAXTYP, NTYPES )
 | |
|          ELSE
 | |
|             MTYPES = MIN( MAXTYP+1, NTYPES )
 | |
|          END IF
 | |
| *
 | |
|          DO 1210 JTYPE = 1, MTYPES
 | |
|             IF( .NOT.DOTYPE( JTYPE ) )
 | |
|      $         GO TO 1210
 | |
|             NMATS = NMATS + 1
 | |
|             NTEST = 0
 | |
| *
 | |
|             DO 30 J = 1, 4
 | |
|                IOLDSD( J ) = ISEED( J )
 | |
|    30       CONTINUE
 | |
| *
 | |
| *           2)      Compute "A"
 | |
| *
 | |
| *                   Control parameters:
 | |
| *
 | |
| *               KMAGN  KMODE        KTYPE
 | |
| *           =1  O(1)   clustered 1  zero
 | |
| *           =2  large  clustered 2  identity
 | |
| *           =3  small  exponential  (none)
 | |
| *           =4         arithmetic   diagonal, (w/ eigenvalues)
 | |
| *           =5         random log   Hermitian, w/ eigenvalues
 | |
| *           =6         random       (none)
 | |
| *           =7                      random diagonal
 | |
| *           =8                      random Hermitian
 | |
| *           =9                      band Hermitian, w/ eigenvalues
 | |
| *
 | |
|             IF( MTYPES.GT.MAXTYP )
 | |
|      $         GO TO 110
 | |
| *
 | |
|             ITYPE = KTYPE( JTYPE )
 | |
|             IMODE = KMODE( JTYPE )
 | |
| *
 | |
| *           Compute norm
 | |
| *
 | |
|             GO TO ( 40, 50, 60 )KMAGN( JTYPE )
 | |
| *
 | |
|    40       CONTINUE
 | |
|             ANORM = ONE
 | |
|             GO TO 70
 | |
| *
 | |
|    50       CONTINUE
 | |
|             ANORM = ( RTOVFL*ULP )*ANINV
 | |
|             GO TO 70
 | |
| *
 | |
|    60       CONTINUE
 | |
|             ANORM = RTUNFL*N*ULPINV
 | |
|             GO TO 70
 | |
| *
 | |
|    70       CONTINUE
 | |
| *
 | |
|             CALL ZLASET( 'Full', LDA, N, CZERO, CZERO, A, LDA )
 | |
|             IINFO = 0
 | |
|             COND = ULPINV
 | |
| *
 | |
| *           Special Matrices -- Identity & Jordan block
 | |
| *
 | |
| *                   Zero
 | |
| *
 | |
|             IF( ITYPE.EQ.1 ) THEN
 | |
|                IINFO = 0
 | |
| *
 | |
|             ELSE IF( ITYPE.EQ.2 ) THEN
 | |
| *
 | |
| *              Identity
 | |
| *
 | |
|                DO 80 JCOL = 1, N
 | |
|                   A( JCOL, JCOL ) = ANORM
 | |
|    80          CONTINUE
 | |
| *
 | |
|             ELSE IF( ITYPE.EQ.4 ) THEN
 | |
| *
 | |
| *              Diagonal Matrix, [Eigen]values Specified
 | |
| *
 | |
|                CALL ZLATMS( N, N, 'S', ISEED, 'H', RWORK, IMODE, COND,
 | |
|      $                      ANORM, 0, 0, 'N', A, LDA, WORK, IINFO )
 | |
| *
 | |
|             ELSE IF( ITYPE.EQ.5 ) THEN
 | |
| *
 | |
| *              Hermitian, eigenvalues specified
 | |
| *
 | |
|                CALL ZLATMS( N, N, 'S', ISEED, 'H', RWORK, IMODE, COND,
 | |
|      $                      ANORM, N, N, 'N', A, LDA, WORK, IINFO )
 | |
| *
 | |
|             ELSE IF( ITYPE.EQ.7 ) THEN
 | |
| *
 | |
| *              Diagonal, random eigenvalues
 | |
| *
 | |
|                CALL ZLATMR( N, N, 'S', ISEED, 'H', WORK, 6, ONE, CONE,
 | |
|      $                      'T', 'N', WORK( N+1 ), 1, ONE,
 | |
|      $                      WORK( 2*N+1 ), 1, ONE, 'N', IDUMMA, 0, 0,
 | |
|      $                      ZERO, ANORM, 'NO', A, LDA, IWORK, IINFO )
 | |
| *
 | |
|             ELSE IF( ITYPE.EQ.8 ) THEN
 | |
| *
 | |
| *              Hermitian, random eigenvalues
 | |
| *
 | |
|                CALL ZLATMR( N, N, 'S', ISEED, 'H', WORK, 6, ONE, CONE,
 | |
|      $                      'T', 'N', WORK( N+1 ), 1, ONE,
 | |
|      $                      WORK( 2*N+1 ), 1, ONE, 'N', IDUMMA, N, N,
 | |
|      $                      ZERO, ANORM, 'NO', A, LDA, IWORK, IINFO )
 | |
| *
 | |
|             ELSE IF( ITYPE.EQ.9 ) THEN
 | |
| *
 | |
| *              Hermitian banded, eigenvalues specified
 | |
| *
 | |
|                IHBW = INT( ( N-1 )*DLARND( 1, ISEED3 ) )
 | |
|                CALL ZLATMS( N, N, 'S', ISEED, 'H', RWORK, IMODE, COND,
 | |
|      $                      ANORM, IHBW, IHBW, 'Z', U, LDU, WORK,
 | |
|      $                      IINFO )
 | |
| *
 | |
| *              Store as dense matrix for most routines.
 | |
| *
 | |
|                CALL ZLASET( 'Full', LDA, N, CZERO, CZERO, A, LDA )
 | |
|                DO 100 IDIAG = -IHBW, IHBW
 | |
|                   IROW = IHBW - IDIAG + 1
 | |
|                   J1 = MAX( 1, IDIAG+1 )
 | |
|                   J2 = MIN( N, N+IDIAG )
 | |
|                   DO 90 J = J1, J2
 | |
|                      I = J - IDIAG
 | |
|                      A( I, J ) = U( IROW, J )
 | |
|    90             CONTINUE
 | |
|   100          CONTINUE
 | |
|             ELSE
 | |
|                IINFO = 1
 | |
|             END IF
 | |
| *
 | |
|             IF( IINFO.NE.0 ) THEN
 | |
|                WRITE( NOUNIT, FMT = 9999 )'Generator', IINFO, N, JTYPE,
 | |
|      $            IOLDSD
 | |
|                INFO = ABS( IINFO )
 | |
|                RETURN
 | |
|             END IF
 | |
| *
 | |
|   110       CONTINUE
 | |
| *
 | |
|             ABSTOL = UNFL + UNFL
 | |
|             IF( N.LE.1 ) THEN
 | |
|                IL = 1
 | |
|                IU = N
 | |
|             ELSE
 | |
|                IL = 1 + INT( ( N-1 )*DLARND( 1, ISEED2 ) )
 | |
|                IU = 1 + INT( ( N-1 )*DLARND( 1, ISEED2 ) )
 | |
|                IF( IL.GT.IU ) THEN
 | |
|                   ITEMP = IL
 | |
|                   IL = IU
 | |
|                   IU = ITEMP
 | |
|                END IF
 | |
|             END IF
 | |
| *
 | |
| *           Perform tests storing upper or lower triangular
 | |
| *           part of matrix.
 | |
| *
 | |
|             DO 1200 IUPLO = 0, 1
 | |
|                IF( IUPLO.EQ.0 ) THEN
 | |
|                   UPLO = 'L'
 | |
|                ELSE
 | |
|                   UPLO = 'U'
 | |
|                END IF
 | |
| *
 | |
| *              Call ZHEEVD and CHEEVX.
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, A, LDA, V, LDU )
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZHEEVD( 'V', UPLO, N, A, LDU, D1, WORK, LWEDC,
 | |
|      $                      RWORK, LRWEDC, IWORK, LIWEDC, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVD(V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 130
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 1 and 2.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, V, LDU, D1, D2, A, LDU, Z,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZHEEVD( 'N', UPLO, N, A, LDU, D3, WORK, LWEDC,
 | |
|      $                      RWORK, LRWEDC, IWORK, LIWEDC, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVD(N,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 130
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 3.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 120 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( D1( J ) ), ABS( D3( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( D1( J )-D3( J ) ) )
 | |
|   120          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|   130          CONTINUE
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
| *
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( D1( 1 ) ), ABS( D1( N ) ) )
 | |
|                   IF( IL.NE.1 ) THEN
 | |
|                      VL = D1( IL ) - MAX( HALF*( D1( IL )-D1( IL-1 ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   ELSE IF( N.GT.0 ) THEN
 | |
|                      VL = D1( 1 ) - MAX( HALF*( D1( N )-D1( 1 ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   END IF
 | |
|                   IF( IU.NE.N ) THEN
 | |
|                      VU = D1( IU ) + MAX( HALF*( D1( IU+1 )-D1( IU ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   ELSE IF( N.GT.0 ) THEN
 | |
|                      VU = D1( N ) + MAX( HALF*( D1( N )-D1( 1 ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   END IF
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                   VL = ZERO
 | |
|                   VU = ONE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHEEVX( 'V', 'A', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M, WA1, Z, LDU, WORK, LWORK, RWORK,
 | |
|      $                      IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVX(V,A,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 150
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 4 and 5.
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDU, WA1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZHEEVX( 'N', 'A', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, WORK, LWORK, RWORK,
 | |
|      $                      IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVX(N,A,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 150
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 6.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 140 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( WA1( J ) ), ABS( WA2( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( WA1( J )-WA2( J ) ) )
 | |
|   140          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|   150          CONTINUE
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
| *
 | |
|                CALL ZHEEVX( 'V', 'I', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, WORK, LWORK, RWORK,
 | |
|      $                      IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVX(V,I,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 160
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 7 and 8.
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                CALL ZHEEVX( 'N', 'I', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M3, WA3, Z, LDU, WORK, LWORK, RWORK,
 | |
|      $                      IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVX(N,I,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 160
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 9.
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
|   160          CONTINUE
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
| *
 | |
|                CALL ZHEEVX( 'V', 'V', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, WORK, LWORK, RWORK,
 | |
|      $                      IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVX(V,V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 170
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 10 and 11.
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                CALL ZHEEVX( 'N', 'V', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M3, WA3, Z, LDU, WORK, LWORK, RWORK,
 | |
|      $                      IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVX(N,V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 170
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
|                IF( M3.EQ.0 .AND. N.GT.0 ) THEN
 | |
|                   RESULT( NTEST ) = ULPINV
 | |
|                   GO TO 170
 | |
|                END IF
 | |
| *
 | |
| *              Do test 12.
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
|   170          CONTINUE
 | |
| *
 | |
| *              Call ZHPEVD and CHPEVX.
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
| *              Load array WORK with the upper or lower triangular
 | |
| *              part of the matrix in packed form.
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 190 J = 1, N
 | |
|                      DO 180 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   180                CONTINUE
 | |
|   190             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 210 J = 1, N
 | |
|                      DO 200 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   200                CONTINUE
 | |
|   210             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                INDWRK = N*( N+1 ) / 2 + 1
 | |
|                CALL ZHPEVD( 'V', UPLO, N, WORK, D1, Z, LDU,
 | |
|      $                      WORK( INDWRK ), LWEDC, RWORK, LRWEDC, IWORK,
 | |
|      $                      LIWEDC, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVD(V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 270
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 13 and 14.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDA, D1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 230 J = 1, N
 | |
|                      DO 220 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   220                CONTINUE
 | |
|   230             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 250 J = 1, N
 | |
|                      DO 240 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   240                CONTINUE
 | |
|   250             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                INDWRK = N*( N+1 ) / 2 + 1
 | |
|                CALL ZHPEVD( 'N', UPLO, N, WORK, D3, Z, LDU,
 | |
|      $                      WORK( INDWRK ), LWEDC, RWORK, LRWEDC, IWORK,
 | |
|      $                      LIWEDC, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVD(N,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 270
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 15.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 260 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( D1( J ) ), ABS( D3( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( D1( J )-D3( J ) ) )
 | |
|   260          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
| *              Load array WORK with the upper or lower triangular part
 | |
| *              of the matrix in packed form.
 | |
| *
 | |
|   270          CONTINUE
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 290 J = 1, N
 | |
|                      DO 280 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   280                CONTINUE
 | |
|   290             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 310 J = 1, N
 | |
|                      DO 300 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   300                CONTINUE
 | |
|   310             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
| *
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( D1( 1 ) ), ABS( D1( N ) ) )
 | |
|                   IF( IL.NE.1 ) THEN
 | |
|                      VL = D1( IL ) - MAX( HALF*( D1( IL )-D1( IL-1 ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   ELSE IF( N.GT.0 ) THEN
 | |
|                      VL = D1( 1 ) - MAX( HALF*( D1( N )-D1( 1 ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   END IF
 | |
|                   IF( IU.NE.N ) THEN
 | |
|                      VU = D1( IU ) + MAX( HALF*( D1( IU+1 )-D1( IU ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   ELSE IF( N.GT.0 ) THEN
 | |
|                      VU = D1( N ) + MAX( HALF*( D1( N )-D1( 1 ) ),
 | |
|      $                    TEN*ULP*TEMP3, TEN*RTUNFL )
 | |
|                   END IF
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                   VL = ZERO
 | |
|                   VU = ONE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHPEVX( 'V', 'A', UPLO, N, WORK, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M, WA1, Z, LDU, V, RWORK, IWORK,
 | |
|      $                      IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVX(V,A,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 370
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 16 and 17.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDU, WA1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 330 J = 1, N
 | |
|                      DO 320 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   320                CONTINUE
 | |
|   330             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 350 J = 1, N
 | |
|                      DO 340 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   340                CONTINUE
 | |
|   350             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHPEVX( 'N', 'A', UPLO, N, WORK, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, V, RWORK, IWORK,
 | |
|      $                      IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVX(N,A,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 370
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 18.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 360 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( WA1( J ) ), ABS( WA2( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( WA1( J )-WA2( J ) ) )
 | |
|   360          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|   370          CONTINUE
 | |
|                NTEST = NTEST + 1
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 390 J = 1, N
 | |
|                      DO 380 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   380                CONTINUE
 | |
|   390             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 410 J = 1, N
 | |
|                      DO 400 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   400                CONTINUE
 | |
|   410             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHPEVX( 'V', 'I', UPLO, N, WORK, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, V, RWORK, IWORK,
 | |
|      $                      IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVX(V,I,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 460
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 19 and 20.
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 430 J = 1, N
 | |
|                      DO 420 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   420                CONTINUE
 | |
|   430             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 450 J = 1, N
 | |
|                      DO 440 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   440                CONTINUE
 | |
|   450             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHPEVX( 'N', 'I', UPLO, N, WORK, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M3, WA3, Z, LDU, V, RWORK, IWORK,
 | |
|      $                      IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVX(N,I,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 460
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 21.
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
|   460          CONTINUE
 | |
|                NTEST = NTEST + 1
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 480 J = 1, N
 | |
|                      DO 470 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   470                CONTINUE
 | |
|   480             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 500 J = 1, N
 | |
|                      DO 490 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   490                CONTINUE
 | |
|   500             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHPEVX( 'V', 'V', UPLO, N, WORK, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, V, RWORK, IWORK,
 | |
|      $                      IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVX(V,V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 550
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 22 and 23.
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 520 J = 1, N
 | |
|                      DO 510 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   510                CONTINUE
 | |
|   520             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 540 J = 1, N
 | |
|                      DO 530 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   530                CONTINUE
 | |
|   540             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHPEVX( 'N', 'V', UPLO, N, WORK, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M3, WA3, Z, LDU, V, RWORK, IWORK,
 | |
|      $                      IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEVX(N,V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 550
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
|                IF( M3.EQ.0 .AND. N.GT.0 ) THEN
 | |
|                   RESULT( NTEST ) = ULPINV
 | |
|                   GO TO 550
 | |
|                END IF
 | |
| *
 | |
| *              Do test 24.
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
|   550          CONTINUE
 | |
| *
 | |
| *              Call ZHBEVD and CHBEVX.
 | |
| *
 | |
|                IF( JTYPE.LE.7 ) THEN
 | |
|                   KD = 0
 | |
|                ELSE IF( JTYPE.GE.8 .AND. JTYPE.LE.15 ) THEN
 | |
|                   KD = MAX( N-1, 0 )
 | |
|                ELSE
 | |
|                   KD = IHBW
 | |
|                END IF
 | |
| *
 | |
| *              Load array V with the upper or lower triangular part
 | |
| *              of the matrix in band form.
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 570 J = 1, N
 | |
|                      DO 560 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   560                CONTINUE
 | |
|   570             CONTINUE
 | |
|                ELSE
 | |
|                   DO 590 J = 1, N
 | |
|                      DO 580 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   580                CONTINUE
 | |
|   590             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZHBEVD( 'V', UPLO, N, KD, V, LDU, D1, Z, LDU, WORK,
 | |
|      $                      LWEDC, RWORK, LRWEDC, IWORK, LIWEDC, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVD(V,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 650
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 25 and 26.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDA, D1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 610 J = 1, N
 | |
|                      DO 600 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   600                CONTINUE
 | |
|   610             CONTINUE
 | |
|                ELSE
 | |
|                   DO 630 J = 1, N
 | |
|                      DO 620 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   620                CONTINUE
 | |
|   630             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZHBEVD( 'N', UPLO, N, KD, V, LDU, D3, Z, LDU, WORK,
 | |
|      $                      LWEDC, RWORK, LRWEDC, IWORK, LIWEDC, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVD(N,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 650
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 27.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 640 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( D1( J ) ), ABS( D3( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( D1( J )-D3( J ) ) )
 | |
|   640          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
| *              Load array V with the upper or lower triangular part
 | |
| *              of the matrix in band form.
 | |
| *
 | |
|   650          CONTINUE
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 670 J = 1, N
 | |
|                      DO 660 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   660                CONTINUE
 | |
|   670             CONTINUE
 | |
|                ELSE
 | |
|                   DO 690 J = 1, N
 | |
|                      DO 680 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   680                CONTINUE
 | |
|   690             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZHBEVX( 'V', 'A', UPLO, N, KD, V, LDU, U, LDU, VL,
 | |
|      $                      VU, IL, IU, ABSTOL, M, WA1, Z, LDU, WORK,
 | |
|      $                      RWORK, IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHBEVX(V,A,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 750
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 28 and 29.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDU, WA1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 710 J = 1, N
 | |
|                      DO 700 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   700                CONTINUE
 | |
|   710             CONTINUE
 | |
|                ELSE
 | |
|                   DO 730 J = 1, N
 | |
|                      DO 720 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   720                CONTINUE
 | |
|   730             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHBEVX( 'N', 'A', UPLO, N, KD, V, LDU, U, LDU, VL,
 | |
|      $                      VU, IL, IU, ABSTOL, M2, WA2, Z, LDU, WORK,
 | |
|      $                      RWORK, IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVX(N,A,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 750
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 30.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 740 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( WA1( J ) ), ABS( WA2( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( WA1( J )-WA2( J ) ) )
 | |
|   740          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
| *              Load array V with the upper or lower triangular part
 | |
| *              of the matrix in band form.
 | |
| *
 | |
|   750          CONTINUE
 | |
|                NTEST = NTEST + 1
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 770 J = 1, N
 | |
|                      DO 760 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   760                CONTINUE
 | |
|   770             CONTINUE
 | |
|                ELSE
 | |
|                   DO 790 J = 1, N
 | |
|                      DO 780 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   780                CONTINUE
 | |
|   790             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                CALL ZHBEVX( 'V', 'I', UPLO, N, KD, V, LDU, U, LDU, VL,
 | |
|      $                      VU, IL, IU, ABSTOL, M2, WA2, Z, LDU, WORK,
 | |
|      $                      RWORK, IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVX(V,I,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 840
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 31 and 32.
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 810 J = 1, N
 | |
|                      DO 800 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   800                CONTINUE
 | |
|   810             CONTINUE
 | |
|                ELSE
 | |
|                   DO 830 J = 1, N
 | |
|                      DO 820 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   820                CONTINUE
 | |
|   830             CONTINUE
 | |
|                END IF
 | |
|                CALL ZHBEVX( 'N', 'I', UPLO, N, KD, V, LDU, U, LDU, VL,
 | |
|      $                      VU, IL, IU, ABSTOL, M3, WA3, Z, LDU, WORK,
 | |
|      $                      RWORK, IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVX(N,I,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 840
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 33.
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
| *              Load array V with the upper or lower triangular part
 | |
| *              of the matrix in band form.
 | |
| *
 | |
|   840          CONTINUE
 | |
|                NTEST = NTEST + 1
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 860 J = 1, N
 | |
|                      DO 850 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   850                CONTINUE
 | |
|   860             CONTINUE
 | |
|                ELSE
 | |
|                   DO 880 J = 1, N
 | |
|                      DO 870 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   870                CONTINUE
 | |
|   880             CONTINUE
 | |
|                END IF
 | |
|                CALL ZHBEVX( 'V', 'V', UPLO, N, KD, V, LDU, U, LDU, VL,
 | |
|      $                      VU, IL, IU, ABSTOL, M2, WA2, Z, LDU, WORK,
 | |
|      $                      RWORK, IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVX(V,V,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 930
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 34 and 35.
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 900 J = 1, N
 | |
|                      DO 890 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|   890                CONTINUE
 | |
|   900             CONTINUE
 | |
|                ELSE
 | |
|                   DO 920 J = 1, N
 | |
|                      DO 910 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|   910                CONTINUE
 | |
|   920             CONTINUE
 | |
|                END IF
 | |
|                CALL ZHBEVX( 'N', 'V', UPLO, N, KD, V, LDU, U, LDU, VL,
 | |
|      $                      VU, IL, IU, ABSTOL, M3, WA3, Z, LDU, WORK,
 | |
|      $                      RWORK, IWORK, IWORK( 5*N+1 ), IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEVX(N,V,' // UPLO //
 | |
|      $               ')', IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 930
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
|                IF( M3.EQ.0 .AND. N.GT.0 ) THEN
 | |
|                   RESULT( NTEST ) = ULPINV
 | |
|                   GO TO 930
 | |
|                END IF
 | |
| *
 | |
| *              Do test 36.
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
|   930          CONTINUE
 | |
| *
 | |
| *              Call ZHEEV
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, A, LDA, V, LDU )
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZHEEV( 'V', UPLO, N, A, LDU, D1, WORK, LWORK, RWORK,
 | |
|      $                     IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEV(V,' // UPLO // ')',
 | |
|      $               IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 950
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 37 and 38
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, V, LDU, D1, D2, A, LDU, Z,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZHEEV( 'N', UPLO, N, A, LDU, D3, WORK, LWORK, RWORK,
 | |
|      $                     IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEV(N,' // UPLO // ')',
 | |
|      $               IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 950
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 39
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 940 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( D1( J ) ), ABS( D3( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( D1( J )-D3( J ) ) )
 | |
|   940          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|   950          CONTINUE
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
| *              Call ZHPEV
 | |
| *
 | |
| *              Load array WORK with the upper or lower triangular
 | |
| *              part of the matrix in packed form.
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 970 J = 1, N
 | |
|                      DO 960 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   960                CONTINUE
 | |
|   970             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 990 J = 1, N
 | |
|                      DO 980 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|   980                CONTINUE
 | |
|   990             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                INDWRK = N*( N+1 ) / 2 + 1
 | |
|                CALL ZHPEV( 'V', UPLO, N, WORK, D1, Z, LDU,
 | |
|      $                     WORK( INDWRK ), RWORK, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEV(V,' // UPLO // ')',
 | |
|      $               IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 1050
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 40 and 41.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDA, D1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   INDX = 1
 | |
|                   DO 1010 J = 1, N
 | |
|                      DO 1000 I = 1, J
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|  1000                CONTINUE
 | |
|  1010             CONTINUE
 | |
|                ELSE
 | |
|                   INDX = 1
 | |
|                   DO 1030 J = 1, N
 | |
|                      DO 1020 I = J, N
 | |
|                         WORK( INDX ) = A( I, J )
 | |
|                         INDX = INDX + 1
 | |
|  1020                CONTINUE
 | |
|  1030             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                INDWRK = N*( N+1 ) / 2 + 1
 | |
|                CALL ZHPEV( 'N', UPLO, N, WORK, D3, Z, LDU,
 | |
|      $                     WORK( INDWRK ), RWORK, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHPEV(N,' // UPLO // ')',
 | |
|      $               IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 1050
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 42
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 1040 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( D1( J ) ), ABS( D3( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( D1( J )-D3( J ) ) )
 | |
|  1040          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|  1050          CONTINUE
 | |
| *
 | |
| *              Call ZHBEV
 | |
| *
 | |
|                IF( JTYPE.LE.7 ) THEN
 | |
|                   KD = 0
 | |
|                ELSE IF( JTYPE.GE.8 .AND. JTYPE.LE.15 ) THEN
 | |
|                   KD = MAX( N-1, 0 )
 | |
|                ELSE
 | |
|                   KD = IHBW
 | |
|                END IF
 | |
| *
 | |
| *              Load array V with the upper or lower triangular part
 | |
| *              of the matrix in band form.
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 1070 J = 1, N
 | |
|                      DO 1060 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|  1060                CONTINUE
 | |
|  1070             CONTINUE
 | |
|                ELSE
 | |
|                   DO 1090 J = 1, N
 | |
|                      DO 1080 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|  1080                CONTINUE
 | |
|  1090             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZHBEV( 'V', UPLO, N, KD, V, LDU, D1, Z, LDU, WORK,
 | |
|      $                     RWORK, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEV(V,' // UPLO // ')',
 | |
|      $               IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 1140
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 43 and 44.
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDA, D1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                IF( IUPLO.EQ.1 ) THEN
 | |
|                   DO 1110 J = 1, N
 | |
|                      DO 1100 I = MAX( 1, J-KD ), J
 | |
|                         V( KD+1+I-J, J ) = A( I, J )
 | |
|  1100                CONTINUE
 | |
|  1110             CONTINUE
 | |
|                ELSE
 | |
|                   DO 1130 J = 1, N
 | |
|                      DO 1120 I = J, MIN( N, J+KD )
 | |
|                         V( 1+I-J, J ) = A( I, J )
 | |
|  1120                CONTINUE
 | |
|  1130             CONTINUE
 | |
|                END IF
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZHBEV( 'N', UPLO, N, KD, V, LDU, D3, Z, LDU, WORK,
 | |
|      $                     RWORK, IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9998 )'ZHBEV(N,' // UPLO // ')',
 | |
|      $               IINFO, N, KD, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 1140
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
|  1140          CONTINUE
 | |
| *
 | |
| *              Do test 45.
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 1150 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( D1( J ) ), ABS( D3( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( D1( J )-D3( J ) ) )
 | |
|  1150          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, A, LDA, V, LDU )
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZHEEVR( 'V', 'A', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M, WA1, Z, LDU, IWORK, WORK, LWORK,
 | |
|      $                      RWORK, LRWORK, IWORK( 2*N+1 ), LIWORK-2*N,
 | |
|      $                      IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVR(V,A,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 1170
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 45 and 46 (or ... )
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                CALL ZHET21( 1, UPLO, N, 0, A, LDU, WA1, D2, Z, LDU, V,
 | |
|      $                      LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZHEEVR( 'N', 'A', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, IWORK, WORK, LWORK,
 | |
|      $                      RWORK, LRWORK, IWORK( 2*N+1 ), LIWORK-2*N,
 | |
|      $                      IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVR(N,A,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 1170
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 47 (or ... )
 | |
| *
 | |
|                TEMP1 = ZERO
 | |
|                TEMP2 = ZERO
 | |
|                DO 1160 J = 1, N
 | |
|                   TEMP1 = MAX( TEMP1, ABS( WA1( J ) ), ABS( WA2( J ) ) )
 | |
|                   TEMP2 = MAX( TEMP2, ABS( WA1( J )-WA2( J ) ) )
 | |
|  1160          CONTINUE
 | |
|                RESULT( NTEST ) = TEMP2 / MAX( UNFL,
 | |
|      $                           ULP*MAX( TEMP1, TEMP2 ) )
 | |
| *
 | |
|  1170          CONTINUE
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
|                CALL ZHEEVR( 'V', 'I', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, IWORK, WORK, LWORK,
 | |
|      $                      RWORK, LRWORK, IWORK( 2*N+1 ), LIWORK-2*N,
 | |
|      $                      IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVR(V,I,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 1180
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 48 and 49 (or +??)
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
|                CALL ZHEEVR( 'N', 'I', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M3, WA3, Z, LDU, IWORK, WORK, LWORK,
 | |
|      $                      RWORK, LRWORK, IWORK( 2*N+1 ), LIWORK-2*N,
 | |
|      $                      IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVR(N,I,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 1180
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do test 50 (or +??)
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, ULP*TEMP3 )
 | |
|  1180          CONTINUE
 | |
| *
 | |
|                NTEST = NTEST + 1
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
|                CALL ZHEEVR( 'V', 'V', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M2, WA2, Z, LDU, IWORK, WORK, LWORK,
 | |
|      $                      RWORK, LRWORK, IWORK( 2*N+1 ), LIWORK-2*N,
 | |
|      $                      IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVR(V,V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      RESULT( NTEST+1 ) = ULPINV
 | |
|                      RESULT( NTEST+2 ) = ULPINV
 | |
|                      GO TO 1190
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
| *              Do tests 51 and 52 (or +??)
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
|                CALL ZHET22( 1, UPLO, N, M2, 0, A, LDU, WA2, D2, Z, LDU,
 | |
|      $                      V, LDU, TAU, WORK, RWORK, RESULT( NTEST ) )
 | |
| *
 | |
|                NTEST = NTEST + 2
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
|                CALL ZHEEVR( 'N', 'V', UPLO, N, A, LDU, VL, VU, IL, IU,
 | |
|      $                      ABSTOL, M3, WA3, Z, LDU, IWORK, WORK, LWORK,
 | |
|      $                      RWORK, LRWORK, IWORK( 2*N+1 ), LIWORK-2*N,
 | |
|      $                      IINFO )
 | |
|                IF( IINFO.NE.0 ) THEN
 | |
|                   WRITE( NOUNIT, FMT = 9999 )'ZHEEVR(N,V,' // UPLO //
 | |
|      $               ')', IINFO, N, JTYPE, IOLDSD
 | |
|                   INFO = ABS( IINFO )
 | |
|                   IF( IINFO.LT.0 ) THEN
 | |
|                      RETURN
 | |
|                   ELSE
 | |
|                      RESULT( NTEST ) = ULPINV
 | |
|                      GO TO 1190
 | |
|                   END IF
 | |
|                END IF
 | |
| *
 | |
|                IF( M3.EQ.0 .AND. N.GT.0 ) THEN
 | |
|                   RESULT( NTEST ) = ULPINV
 | |
|                   GO TO 1190
 | |
|                END IF
 | |
| *
 | |
| *              Do test 52 (or +??)
 | |
| *
 | |
|                TEMP1 = DSXT1( 1, WA2, M2, WA3, M3, ABSTOL, ULP, UNFL )
 | |
|                TEMP2 = DSXT1( 1, WA3, M3, WA2, M2, ABSTOL, ULP, UNFL )
 | |
|                IF( N.GT.0 ) THEN
 | |
|                   TEMP3 = MAX( ABS( WA1( 1 ) ), ABS( WA1( N ) ) )
 | |
|                ELSE
 | |
|                   TEMP3 = ZERO
 | |
|                END IF
 | |
|                RESULT( NTEST ) = ( TEMP1+TEMP2 ) /
 | |
|      $                           MAX( UNFL, TEMP3*ULP )
 | |
| *
 | |
|                CALL ZLACPY( ' ', N, N, V, LDU, A, LDA )
 | |
| *
 | |
| *
 | |
| *
 | |
| *
 | |
| *              Load array V with the upper or lower triangular part
 | |
| *              of the matrix in band form.
 | |
| *
 | |
|  1190          CONTINUE
 | |
| *
 | |
|  1200       CONTINUE
 | |
| *
 | |
| *           End of Loop -- Check for RESULT(j) > THRESH
 | |
| *
 | |
|             NTESTT = NTESTT + NTEST
 | |
|             CALL DLAFTS( 'ZST', N, N, JTYPE, NTEST, RESULT, IOLDSD,
 | |
|      $                   THRESH, NOUNIT, NERRS )
 | |
| *
 | |
|  1210    CONTINUE
 | |
|  1220 CONTINUE
 | |
| *
 | |
| *     Summary
 | |
| *
 | |
|       CALL ALASVM( 'ZST', NOUNIT, NERRS, NTESTT, 0 )
 | |
| *
 | |
|  9999 FORMAT( ' ZDRVST: ', A, ' returned INFO=', I6, / 9X, 'N=', I6,
 | |
|      $      ', JTYPE=', I6, ', ISEED=(', 3( I5, ',' ), I5, ')' )
 | |
|  9998 FORMAT( ' ZDRVST: ', A, ' returned INFO=', I6, / 9X, 'N=', I6,
 | |
|      $      ', KD=', I6, ', JTYPE=', I6, ', ISEED=(', 3( I5, ',' ), I5,
 | |
|      $      ')' )
 | |
| *
 | |
|       RETURN
 | |
| *
 | |
| *     End of ZDRVST
 | |
| *
 | |
|       END
 |