TESTING/EIG/dckgqr.f(3)    Library Functions Manual    TESTING/EIG/dckgqr.f(3)

NAME
       TESTING/EIG/dckgqr.f

SYNOPSIS
   Functions/Subroutines
       subroutine dckgqr (nm, mval, np, pval, nn, nval, nmats, iseed, thresh,
           nmax, a, af, aq, ar, taua, b, bf, bz, bt, bwk, taub, work, rwork,
           nin, nout, info)
           DCKGQR

Function/Subroutine Documentation
   subroutine dckgqr (integer nm, integer, dimension( * ) mval, integer np,
       integer, dimension( * ) pval, integer nn, 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( * ) aq, double
       precision, dimension( * ) ar, double precision, dimension( * ) taua,
       double precision, dimension( * ) b, double precision, dimension( * )
       bf, double precision, dimension( * ) bz, double precision, dimension( *
       ) bt, double precision, dimension( * ) bwk, double precision,
       dimension( * ) taub, double precision, dimension( * ) work, double
       precision, dimension( * ) rwork, integer nin, integer nout, integer
       info)
       DCKGQR

       Purpose:


            DCKGQR tests
            DGGQRF: GQR factorization for N-by-M matrix A and N-by-P matrix B,
            DGGRQF: GRQ factorization 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(column) dimension M.

           NP

                     NP is INTEGER
                     The number of values of P contained in the vector PVAL.

           PVAL

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

           NN

                     NN is INTEGER
                     The number of values of N contained in the vector NVAL.

           NVAL

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

           AQ

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

           AR

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

           TAUA

                     TAUA is DOUBLE PRECISION array, dimension (NMAX)

           B

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

           BF

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

           BZ

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

           BT

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

           BWK

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

           TAUB

                     TAUB is DOUBLE PRECISION 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 207 of file dckgqr.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0         TESTING/EIG/dckgqr.f(3)