TESTING/EIG/dckgsv.f(3)

NAME
TESTING/EIG/dckgsv.f

SYNOPSIS

  Functions/Subroutines
subroutine dckgsv (nm, mval, pval, nval, nmats, iseed, thresh, nmax, a, af, b, bf, u, v, q, alpha, beta, r, iwork, work, rwork, nin, nout, info)
DCKGSV

Function/Subroutine Documentation

  subroutine dckgsv (integer nm, integer, dimension( * ) mval, integer, dimension( * ) pval, integer, dimension( * ) nval, integer nmats, integer, dimension( 4 ) iseed, double precision thresh, integer nmax, double precision, dimension( * ) a, double precision, dimension( * ) af, double precision, dimension( * ) b, double precision, dimension( * ) bf, double precision, dimension( * ) u, double precision, dimension( * ) v, double precision, dimension( * ) q, double precision, dimension( * ) alpha, double precision, dimension( * ) beta, double precision, dimension( * ) r, integer, dimension( * ) iwork, double precision, dimension( * ) work, double precision, dimension( * ) rwork, integer nin, integer nout, integer info)

DCKGSV

Purpose:

     DCKGSV tests DGGSVD:
            the GSVD for M-by-N matrix A and P-by-N matrix B.

Parameters
    NM

              NM is INTEGER
              The number of values of M contained in the vector MVAL.

    MVAL

              MVAL is INTEGER array, dimension (NM)
              The values of the matrix row dimension M.

    PVAL

              PVAL is INTEGER array, dimension (NP)
              The values of the matrix row dimension P.

    NVAL

              NVAL is INTEGER array, dimension (NN)
              The values of the matrix column dimension N.

    NMATS

              NMATS is INTEGER
              The number of matrix types to be tested for each combination
              of matrix dimensions.  If NMATS >= NTYPES (the maximum
              number of matrix types), then all the different types are
              generated for testing.  If NMATS < NTYPES, another input line
              is read to get the numbers of the matrix types to be used.

    ISEED

              ISEED is INTEGER array, dimension (4)
              On entry, the seed of the random number generator.  The array
              elements should be between 0 and 4095, otherwise they will be
              reduced mod 4096, and ISEED(4) must be odd.
              On exit, the next seed in the random number sequence after
              all the test matrices have been generated.

    THRESH

              THRESH is DOUBLE PRECISION
              The threshold value for the test ratios.  A result is
              included in the output file if RESULT >= THRESH.  To have
              every test ratio printed, use THRESH = 0.

    NMAX

              NMAX is INTEGER
              The maximum value permitted for M or N, used in dimensioning
              the work arrays.

    A

              A is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    AF

              AF is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    B

              B is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    BF

              BF is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    U

              U is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    V

              V is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    Q

              Q is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    ALPHA

              ALPHA is DOUBLE PRECISION array, dimension (NMAX)

    BETA

              BETA is DOUBLE PRECISION array, dimension (NMAX)

    R

              R is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    IWORK

              IWORK is INTEGER array, dimension (NMAX)

    WORK

              WORK is DOUBLE PRECISION array, dimension (NMAX*NMAX)

    RWORK

              RWORK is DOUBLE PRECISION array, dimension (NMAX)

    NIN

              NIN is INTEGER
              The unit number for input.

    NOUT

              NOUT is INTEGER
              The unit number for output.

    INFO

              INFO is INTEGER
              = 0 :  successful exit
              > 0 :  If DLATMS returns an error code, the absolute value
                     of it is returned.

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 195 of file dckgsv.f.

Author

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