Ifpack2::Details::ScaledDampedResidual< TpetraOperatorType > Class Template Reference

Compute scaled damped residual for Chebyshev. More...

#include <Ifpack2_Details_ScaledDampedResidual_decl.hpp>

Detailed Description

template<class TpetraOperatorType>
class Ifpack2::Details::ScaledDampedResidual< TpetraOperatorType >

Compute scaled damped residual for Chebyshev.

This is an implementation detail of Ifpack2::Chebyshev. Given a linear system A*X=B and an "inverse diagonal" matrix (stored as a vector) D_inv, it computes a "scaled damped" residual vector W := alpha*D_inv*(B-A*X) + beta*W.

Template Parameters

TpetraOperatorType

Specialization of Tpetra::Operator.

Note

To Ifpack2 developers: We can't fuse this with X := X + W, because data dependencies in the input X are not elementwise (unless A is diagonal).

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The documentation for this class was generated from the following files:

• Ifpack2_Details_ScaledDampedResidual_decl.hpp
• Ifpack2_Details_ScaledDampedResidual_def.hpp