Stencil contaning the entries (en,en) and (en,nb) for all entities en in the space and neighbors nb of en. Defailt for an operator over a DG space. More...

#include <dune/fem/operator/common/stencil.hh>

Public Types
typedef std::vector< std::size_t >::size_type	IndexType
	type of std::vector for indexing

Public Member Functions
void	fill (const DomainEntityType &dEntity, const RangeEntityType &rEntity, bool fillGhost=true) const
	Create stencil entries for (dEntity,rEntity) pair. More...

const LocalStencilType &	localStencil (const RangeGlobalKeyType &key) const
	Return stencil for a given row of the matrix. More...

const GlobalStencilType &	globalStencil () const
	Return the full stencil.

int	maxNonZerosEstimate () const
	Return an upper bound for the maximum number of non-zero entries in all rows.

void	update ()
	clear previously computed entries such that a re-compute happens when used again

Protected Member Functions
virtual void	setupStencil () const override
	method to setup stencil depending on entity set defined in derived class

Detailed Description

template<class DomainSpace, class RangeSpace, class Partition = Dune::Partitions::InteriorBorder>
class Dune::Fem::DiagonalAndNeighborStencil< DomainSpace, RangeSpace, Partition >

Stencil contaning the entries (en,en) and (en,nb) for all entities en in the space and neighbors nb of en. Defailt for an operator over a DG space.

Template Parameters

DomainSpace	type of discrete function space for the domain
RangeSpace	type of discrete function space for the range

Member Function Documentation

◆ fill()

template<class DomainSpace , class RangeSpace >

void Dune::Fem::Stencil< DomainSpace, RangeSpace >::fill	(	const DomainEntityType &	dEntity,
		const RangeEntityType &	rEntity,
		bool	fillGhost = `true`
	)		const