la_lapack::la_porpvgrw Interface Reference

LA_PORPVGRW: computes the reciprocal pivot growth factor norm(A)/norm(U). The "max absolute element" norm is used. If this is much less than 1, the stability of the LU factorization of the (equilibrated) matrix A could be poor. This also means that the solution X, estimated condition numbers, and error bounds could be unreliable. More...

Public Member Functions
real(sp) function	cla_porpvgrw (uplo, ncols, a, lda, af, ldaf, work)
	la_cla_porpvgrw
real(dp) function	dla_porpvgrw (uplo, ncols, a, lda, af, ldaf, work)
	la_dla_porpvgrw
	la_qla_porpvgrw
real(sp) function	sla_porpvgrw (uplo, ncols, a, lda, af, ldaf, work)
	la_sla_porpvgrw
	la_wla_porpvgrw
real(dp) function	zla_porpvgrw (uplo, ncols, a, lda, af, ldaf, work)
	la_zla_porpvgrw

Detailed Description

LA_PORPVGRW: computes the reciprocal pivot growth factor norm(A)/norm(U). The "max absolute element" norm is used. If this is much less than 1, the stability of the LU factorization of the (equilibrated) matrix A could be poor. This also means that the solution X, estimated condition numbers, and error bounds could be unreliable.

Member Function/Subroutine Documentation

cla_porpvgrw()

real(sp) function la_lapack::la_porpvgrw::cla_porpvgrw	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	ncols,
		complex(sp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		complex(sp), dimension(ldaf,*), intent(in)	af,
		integer(ilp), intent(in)	ldaf,
		real(sp), dimension(*), intent(out)	work
	)

dla_porpvgrw()

real(dp) function la_lapack::la_porpvgrw::dla_porpvgrw	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	ncols,
		real(dp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		real(dp), dimension(ldaf,*), intent(in)	af,
		integer(ilp), intent(in)	ldaf,
		real(dp), dimension(*), intent(out)	work
	)

la_cla_porpvgrw()

la_lapack::la_porpvgrw::la_cla_porpvgrw

la_dla_porpvgrw()

la_lapack::la_porpvgrw::la_dla_porpvgrw

la_qla_porpvgrw()

la_lapack::la_porpvgrw::la_qla_porpvgrw

la_sla_porpvgrw()

la_lapack::la_porpvgrw::la_sla_porpvgrw

la_wla_porpvgrw()

la_lapack::la_porpvgrw::la_wla_porpvgrw

la_zla_porpvgrw()

la_lapack::la_porpvgrw::la_zla_porpvgrw

sla_porpvgrw()

real(sp) function la_lapack::la_porpvgrw::sla_porpvgrw	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	ncols,
		real(sp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		real(sp), dimension(ldaf,*), intent(in)	af,
		integer(ilp), intent(in)	ldaf,
		real(sp), dimension(*), intent(out)	work
	)

zla_porpvgrw()

real(dp) function la_lapack::la_porpvgrw::zla_porpvgrw	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	ncols,
		complex(dp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		complex(dp), dimension(ldaf,*), intent(in)	af,
		integer(ilp), intent(in)	ldaf,
		real(dp), dimension(*), intent(out)	work
	)

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The documentation for this interface was generated from the following file:

• la_lapack.f90