schkgb.f - Man Page
TESTING/LIN/schkgb.f
Synopsis
Functions/Subroutines
subroutine schkgb (dotype, nm, mval, nn, nval, nnb, nbval, nns, nsval, thresh, tsterr, a, la, afac, lafac, b, x, xact, work, rwork, iwork, nout)
SCHKGB
Function/Subroutine Documentation
subroutine schkgb (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer nns, integer, dimension( * ) nsval, real thresh, logical tsterr, real, dimension( * ) a, integer la, real, dimension( * ) afac, integer lafac, real, dimension( * ) b, real, dimension( * ) x, real, dimension( * ) xact, real, dimension( * ) work, real, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)
SCHKGB
Purpose:
SCHKGB tests SGBTRF, -TRS, -RFS, and -CON
- 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 contained in the vector NBVAL.
NBVAL
NBVAL is INTEGER array, dimension (NNB) The values of the blocksize NB.
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.
A
A is REAL array, dimension (LA)
LA
LA is INTEGER The length of the array A. LA >= (KLMAX+KUMAX+1)*NMAX where KLMAX is the largest entry in the local array KLVAL, KUMAX is the largest entry in the local array KUVAL and NMAX is the largest entry in the input array NVAL.
AFAC
AFAC is REAL array, dimension (LAFAC)
LAFAC
LAFAC is INTEGER The length of the array AFAC. LAFAC >= (2*KLMAX+KUMAX+1)*NMAX where KLMAX is the largest entry in the local array KLVAL, KUMAX is the largest entry in the local array KUVAL and NMAX is the largest entry in the input array NVAL.
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,NMAX))
RWORK
RWORK is REAL array, dimension (NMAX+2*NSMAX)
IWORK
IWORK is INTEGER array, dimension (2*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 188 of file schkgb.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Referenced By
The man page schkgb(3) is an alias of schkgb.f(3).
Tue Nov 28 2023 12:08:43 Version 3.12.0 LAPACK