Dune::PDELab::impl::BlockDiagonalOperator< BlockDiagonalLocalOperator, W, XView, EG, LFSU, LFSV > Struct Template Reference

Create ISTL operator that applies a local block diagonal. More...

#include <dune/pdelab/backend/istl/matrixfree/iterativeblockjacobipreconditioner.hh>

Public Types
typedef W	domain_type
	The type of the domain of the operator.
typedef W	range_type
	The type of the range of the operator.

Public Member Functions
Dune::SolverCategory::Category	category () const override
	Category of the linear operator (see SolverCategory::Category)
void	apply (const W &z, W &y) const override
	apply operator to x: \( y = A(x) \) The input vector is consistent and the output must also be consistent on the interior+border partition.
void	applyscaleadd (field_type alpha, const W &z, W &y) const override
	apply operator to x, scale and add: \( y = y + \alpha A(x) \)

Detailed Description

template<typename BlockDiagonalLocalOperator, typename W, typename XView, typename EG, typename LFSU, typename LFSV>
struct Dune::PDELab::impl::BlockDiagonalOperator< BlockDiagonalLocalOperator, W, XView, EG, LFSU, LFSV >

Create ISTL operator that applies a local block diagonal.

This class is similar to the OnTheFlyOperator in the sense that a local operator is used to create an ISTL operator can be used to solve a linear system of equations in a matrix free way.

Where the OnTheFlyOperator takes a grid operator and solves a global system, this class only solves the local block diagonal system.

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

• dune/pdelab/backend/istl/matrixfree/iterativeblockjacobipreconditioner.hh