TESTING/LIN/schktb.f(3) | Library Functions Manual | TESTING/LIN/schktb.f(3) |
NAME
TESTING/LIN/schktb.f
SYNOPSIS
Functions/Subroutines
subroutine schktb (dotype, nn, nval, nns, nsval, thresh,
tsterr, nmax, ab, ainv, b, x, xact, work, rwork, iwork, nout)
SCHKTB
Function/Subroutine Documentation
subroutine schktb (logical, dimension( * ) dotype, integer nn, integer, dimension( * ) nval, integer nns, integer, dimension( * ) nsval, real thresh, logical tsterr, integer nmax, real, dimension( * ) ab, real, dimension( * ) ainv, real, dimension( * ) b, real, dimension( * ) x, real, dimension( * ) xact, real, dimension( * ) work, real, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)
SCHKTB
Purpose:
SCHKTB tests STBTRS, -RFS, and -CON, and SLATBS.
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.
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.
THRESH
THRESH is REAL 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 leading dimension of the work arrays. NMAX >= the maximum value of N in NVAL.
AB
AB is REAL array, dimension (NMAX*NMAX)
AINV
AINV is REAL array, dimension (NMAX*NMAX)
B
B is REAL array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL.
X
X is REAL array, dimension (NMAX*NSMAX)
XACT
XACT is REAL array, dimension (NMAX*NSMAX)
WORK
WORK is REAL array, dimension (NMAX*max(3,NSMAX))
RWORK
RWORK is REAL array, dimension (max(NMAX,2*NSMAX))
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 152 of file schktb.f.
Author
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