table of contents
| /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/dchkqr.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/dchkqr.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/dchkqr.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine DCHKQR (dotype, nm, mval, nn, nval, nnb, nbval,
nxval, nrhs, thresh, tsterr, nmax, a, af, aq, ar, ac, b, x, xact, tau, work,
rwork, iwork, nout)
DCHKQR
Function/Subroutine Documentation¶
subroutine DCHKQR (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer, dimension( * ) nxval, integer nrhs, double precision thresh, logical tsterr, integer nmax, double precision, dimension( * ) a, double precision, dimension( * ) af, double precision, dimension( * ) aq, double precision, dimension( * ) ar, double precision, dimension( * ) ac, double precision, dimension( * ) b, double precision, dimension( * ) x, double precision, dimension( * ) xact, double precision, dimension( * ) tau, double precision, dimension( * ) work, double precision, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)¶
DCHKQR
Purpose:
!> !> DCHKQR tests DGEQRF, DORGQR and DORMQR. !>
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. !>
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. !>
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. !>
NRHS
!> NRHS is INTEGER !> The number of right hand side vectors to be generated for !> each linear system. !>
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. !>
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) !>
AC
!> AC is DOUBLE PRECISION array, dimension (NMAX*NMAX) !>
B
!> B is DOUBLE PRECISION array, dimension (NMAX*NRHS) !>
X
!> X is DOUBLE PRECISION array, dimension (NMAX*NRHS) !>
XACT
!> XACT is DOUBLE PRECISION array, dimension (NMAX*NRHS) !>
TAU
!> TAU is DOUBLE PRECISION array, dimension (NMAX) !>
WORK
!> WORK is DOUBLE PRECISION array, dimension (NMAX*NMAX) !>
RWORK
!> RWORK is DOUBLE PRECISION array, dimension (NMAX) !>
IWORK
!> IWORK is INTEGER array, dimension (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 198 of file dchkqr.f.
Author¶
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