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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget32.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget32.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget32.f

SYNOPSIS

Functions/Subroutines


subroutine SGET32 (rmax, lmax, ninfo, knt)
SGET32

Function/Subroutine Documentation

subroutine SGET32 (real rmax, integer lmax, integer ninfo, integer knt)

SGET32

Purpose:

!>
!> SGET32 tests SLASY2, a routine for solving
!>
!>         op(TL)*X + ISGN*X*op(TR) = SCALE*B
!>
!> where TL is N1 by N1, TR is N2 by N2, and N1,N2 =1 or 2 only.
!> X and B are N1 by N2, op() is an optional transpose, an
!> ISGN = 1 or -1. SCALE is chosen less than or equal to 1 to
!> avoid overflow in X.
!>
!> The test condition is that the scaled residual
!>
!> norm( op(TL)*X + ISGN*X*op(TR) = SCALE*B )
!>      / ( max( ulp*norm(TL), ulp*norm(TR)) * norm(X), SMLNUM )
!>
!> should be on the order of 1. Here, ulp is the machine precision.
!> Also, it is verified that SCALE is less than or equal to 1, and
!> that XNORM = infinity-norm(X).
!> 

Parameters

RMAX

!>          RMAX is REAL
!>          Value of the largest test ratio.
!> 

LMAX

!>          LMAX is INTEGER
!>          Example number where largest test ratio achieved.
!> 

NINFO

!>          NINFO is INTEGER
!>          Number of examples returned with INFO.NE.0.
!> 

KNT

!>          KNT is INTEGER
!>          Total number of examples tested.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 81 of file sget32.f.

Author

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Version 3.12.0 LAPACK