TESTING/LIN/ddrvls.f(3)    Library Functions Manual    TESTING/LIN/ddrvls.f(3)

NAME
       TESTING/LIN/ddrvls.f

SYNOPSIS
   Functions/Subroutines
       subroutine ddrvls (dotype, nm, mval, nn, nval, nns, nsval, nnb, nbval,
           nxval, thresh, tsterr, a, copya, b, copyb, c, s, copys, nout)
           DDRVLS

Function/Subroutine Documentation
   subroutine ddrvls (logical, dimension( * ) dotype, integer nm, integer,
       dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer
       nns, integer, dimension( * ) nsval, integer nnb, integer, dimension( *
       ) nbval, integer, dimension( * ) nxval, double precision thresh,
       logical tsterr, double precision, dimension( * ) a, double precision,
       dimension( * ) copya, double precision, dimension( * ) b, double
       precision, dimension( * ) copyb, double precision, dimension( * ) c,
       double precision, dimension( * ) s, double precision, dimension( * )
       copys, integer nout)
       DDRVLS

       Purpose:


            DDRVLS tests the least squares driver routines DGELS, DGELST,
            DGETSLS, DGELSS, DGELSY, and DGELSD.

       Parameters
           DOTYPE

                     DOTYPE is LOGICAL array, dimension (NTYPES)
                     The matrix types to be used for testing.  Matrices of type j
                     (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
                     .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.
                     The matrix of type j is generated as follows:
                     j=1: A = U*D*V where U and V are random orthogonal matrices
                          and D has random entries (> 0.1) taken from a uniform
                          distribution (0,1). A is full rank.
                     j=2: The same of 1, but A is scaled up.
                     j=3: The same of 1, but A is scaled down.
                     j=4: A = U*D*V where U and V are random orthogonal matrices
                          and D has 3*min(M,N)/4 random entries (> 0.1) taken
                          from a uniform distribution (0,1) and the remaining
                          entries set to 0. A is rank-deficient.
                     j=5: The same of 4, but A is scaled up.
                     j=6: The same of 5, but A is scaled down.

           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.

           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 dimension N.

           NNS

                     NNS is INTEGER
                     The number of values of NRHS contained in the vector NSVAL.

           NSVAL

                     NSVAL is INTEGER array, dimension (NNS)
                     The values of the number of right hand sides NRHS.

           NNB

                     NNB is INTEGER
                     The number of values of NB and NX contained in the
                     vectors NBVAL and NXVAL.  The blocking parameters are used
                     in pairs (NB,NX).

           NBVAL

                     NBVAL is INTEGER array, dimension (NNB)
                     The values of the blocksize NB.

           NXVAL

                     NXVAL is INTEGER array, dimension (NNB)
                     The values of the crossover point NX.

           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.

           TSTERR

                     TSTERR is LOGICAL
                     Flag that indicates whether error exits are to be tested.

           A

                     A is DOUBLE PRECISION array, dimension (MMAX*NMAX)
                     where MMAX is the maximum value of M in MVAL and NMAX is the
                     maximum value of N in NVAL.

           COPYA

                     COPYA is DOUBLE PRECISION array, dimension (MMAX*NMAX)

           B

                     B is DOUBLE PRECISION array, dimension (MMAX*NSMAX)
                     where MMAX is the maximum value of M in MVAL and NSMAX is the
                     maximum value of NRHS in NSVAL.

           COPYB

                     COPYB is DOUBLE PRECISION array, dimension (MMAX*NSMAX)

           C

                     C is DOUBLE PRECISION array, dimension (MMAX*NSMAX)

           S

                     S is DOUBLE PRECISION array, dimension
                                 (min(MMAX,NMAX))

           COPYS

                     COPYS is DOUBLE PRECISION array, dimension
                                 (min(MMAX,NMAX))

           NOUT

                     NOUT is INTEGER
                     The unit number for output.

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 189 of file ddrvls.f.

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

LAPACK                          Version 3.12.0         TESTING/LIN/ddrvls.f(3)