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LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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| 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
DDRVLS tests the least squares driver routines DGELS, DGELST, DGETSLS, DGELSS, DGELSY, and DGELSD.
| [in] | 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. |
| [in] | NM | NM is INTEGER
The number of values of M contained in the vector MVAL. |
| [in] | MVAL | MVAL is INTEGER array, dimension (NM)
The values of the matrix row dimension M. |
| [in] | NN | NN is INTEGER
The number of values of N contained in the vector NVAL. |
| [in] | NVAL | NVAL is INTEGER array, dimension (NN)
The values of the matrix column dimension N. |
| [in] | NNS | NNS is INTEGER
The number of values of NRHS contained in the vector NSVAL. |
| [in] | NSVAL | NSVAL is INTEGER array, dimension (NNS)
The values of the number of right hand sides NRHS. |
| [in] | 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). |
| [in] | NBVAL | NBVAL is INTEGER array, dimension (NNB)
The values of the blocksize NB. |
| [in] | NXVAL | NXVAL is INTEGER array, dimension (NNB)
The values of the crossover point NX. |
| [in] | 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. |
| [in] | TSTERR | TSTERR is LOGICAL
Flag that indicates whether error exits are to be tested. |
| [out] | 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. |
| [out] | COPYA | COPYA is DOUBLE PRECISION array, dimension (MMAX*NMAX) |
| [out] | 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. |
| [out] | COPYB | COPYB is DOUBLE PRECISION array, dimension (MMAX*NSMAX) |
| [out] | C | C is DOUBLE PRECISION array, dimension (MMAX*NSMAX) |
| [out] | S | S is DOUBLE PRECISION array, dimension
(min(MMAX,NMAX)) |
| [out] | COPYS | COPYS is DOUBLE PRECISION array, dimension
(min(MMAX,NMAX)) |
| [in] | NOUT | NOUT is INTEGER
The unit number for output. |
1.9.4