la_lapack::la_gerpvgrw Interface Reference

LA_GERPVGRW: 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
pure real(sp) function	cla_gerpvgrw (n, ncols, a, lda, af, ldaf)
	la_cla_gerpvgrw
pure real(dp) function	dla_gerpvgrw (n, ncols, a, lda, af, ldaf)
	la_dla_gerpvgrw
	la_qla_gerpvgrw
pure real(sp) function	sla_gerpvgrw (n, ncols, a, lda, af, ldaf)
	la_sla_gerpvgrw
	la_wla_gerpvgrw
pure real(dp) function	zla_gerpvgrw (n, ncols, a, lda, af, ldaf)
	la_zla_gerpvgrw

Detailed Description

LA_GERPVGRW: 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_gerpvgrw()

pure real(sp) function la_lapack::la_gerpvgrw::cla_gerpvgrw	(	integer(ilp), intent(in)	n,
		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
	)

dla_gerpvgrw()

pure real(dp) function la_lapack::la_gerpvgrw::dla_gerpvgrw	(	integer(ilp), intent(in)	n,
		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
	)

la_cla_gerpvgrw()

la_lapack::la_gerpvgrw::la_cla_gerpvgrw

la_dla_gerpvgrw()

la_lapack::la_gerpvgrw::la_dla_gerpvgrw

la_qla_gerpvgrw()

la_lapack::la_gerpvgrw::la_qla_gerpvgrw

la_sla_gerpvgrw()

la_lapack::la_gerpvgrw::la_sla_gerpvgrw

la_wla_gerpvgrw()

la_lapack::la_gerpvgrw::la_wla_gerpvgrw

la_zla_gerpvgrw()

la_lapack::la_gerpvgrw::la_zla_gerpvgrw

sla_gerpvgrw()

pure real(sp) function la_lapack::la_gerpvgrw::sla_gerpvgrw	(	integer(ilp), intent(in)	n,
		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
	)

zla_gerpvgrw()

pure real(dp) function la_lapack::la_gerpvgrw::zla_gerpvgrw	(	integer(ilp), intent(in)	n,
		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
	)

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

• la_lapack.f90