Dune::Amg::MatrixHierarchy< M, PI, A > Class Template Reference

The hierarchies build by the coarsening process. More...

#include <dune/istl/paamg/matrixhierarchy.hh>

Public Types
typedef M	MatrixOperator
	The type of the matrix operator.
typedef MatrixOperator::matrix_type	Matrix
	The type of the matrix.
typedef PI	ParallelInformation
	The type of the index set.
typedef A	Allocator
	The allocator to use.
typedef Dune::Amg::AggregatesMap< typename MatrixGraph< Matrix >::VertexDescriptor >	AggregatesMap
	The type of the aggregates map we use.
typedef Dune::Amg::Hierarchy< MatrixOperator, Allocator >	ParallelMatrixHierarchy
	The type of the parallel matrix hierarchy.
typedef Dune::Amg::Hierarchy< ParallelInformation, Allocator >	ParallelInformationHierarchy
	The type of the parallel informarion hierarchy.
using	AAllocator = typename std::allocator_traits< Allocator >::template rebind_alloc< AggregatesMap * >
	Allocator for pointers.
typedef std::list< AggregatesMap *, AAllocator >	AggregatesMapList
	The type of the aggregates maps list.
typedef RedistributeInformation< ParallelInformation >	RedistributeInfoType
	The type of the redistribute information.
using	RILAllocator = typename std::allocator_traits< Allocator >::template rebind_alloc< RedistributeInfoType >
	Allocator for RedistributeInfoType.
typedef std::list< RedistributeInfoType, RILAllocator >	RedistributeInfoList
	The type of the list of redistribute information.

Public Member Functions
	MatrixHierarchy (std::shared_ptr< MatrixOperator > fineMatrix, std::shared_ptr< ParallelInformation > pinfo=std::make_shared< ParallelInformation >())
	Constructor. More...
template<typename O , typename T >
void	build (const T &criterion)
	Build the matrix hierarchy using aggregation. More...
template<class F >
void	recalculateGalerkin (const F &copyFlags)
	Recalculate the galerkin products. More...
template<class V , class BA , class TA >
void	coarsenVector (Hierarchy< BlockVector< V, BA >, TA > &hierarchy) const
	Coarsen the vector hierarchy according to the matrix hierarchy. More...
template<class S , class TA >
void	coarsenSmoother (Hierarchy< S, TA > &smoothers, const typename SmootherTraits< S >::Arguments &args) const
	Coarsen the smoother hierarchy according to the matrix hierarchy. More...
std::size_t	levels () const
	Get the number of levels in the hierarchy. More...
std::size_t	maxlevels () const
	Get the max number of levels in the hierarchy of processors. More...
bool	isBuilt () const
	Whether the hierarchy was built. More...
const ParallelMatrixHierarchy &	matrices () const
	Get the matrix hierarchy. More...
const ParallelInformationHierarchy &	parallelInformation () const
	Get the hierarchy of the parallel data distribution information. More...
const AggregatesMapList &	aggregatesMaps () const
	Get the hierarchy of the mappings of the nodes onto aggregates. More...
const RedistributeInfoList &	redistributeInformation () const
	Get the hierarchy of the information about redistributions,. More...
void	getCoarsestAggregatesOnFinest (std::vector< std::size_t > &data) const
	Get the mapping of fine level unknowns to coarse level aggregates. More...

Detailed Description

template<class M, class PI, class A = std::allocator<M>>
class Dune::Amg::MatrixHierarchy< M, PI, A >

The hierarchies build by the coarsening process.

Namely a hierarchy of matrices, index sets, remote indices, interfaces and communicators.

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

• dune/istl/paamg/matrixhierarchy.hh