Class that stores a strided map. More...

#include <Xpetra_StridedMap.hpp>

Inheritance diagram for Xpetra::StridedMap< LocalOrdinal, GlobalOrdinal, Node >:

Protected Attributes
std::vector< size_t >	stridingInfo_
	vector with size of strided blocks (dofs)
LocalOrdinal	stridedBlockId_
	member variable denoting which dofs are stored in map
GlobalOrdinal	offset_
	offset for gids in map (default = 0).
Private Member Functions
virtual bool	CheckConsistency ()=0
Constructor/Destructor Methods
	StridedMap (global_size_t numGlobalElements, GlobalOrdinal indexBase, std::vector< size_t > &stridingInfo, const Teuchos::RCP< const Teuchos::Comm< int > > &comm, LocalOrdinal stridedBlockId, GlobalOrdinal offset=0)
	StridedMap (global_size_t numGlobalElements, size_t numLocalElements, GlobalOrdinal indexBase, std::vector< size_t > &stridingInfo, const Teuchos::RCP< const Teuchos::Comm< int > > &comm, LocalOrdinal stridedBlockId, GlobalOrdinal offset=0)
	StridedMap (std::vector< size_t > &stridingInfo, LocalOrdinal stridedBlockId, GlobalOrdinal offset=0)
	StridedMap (global_size_t numGlobalElements, const Teuchos::ArrayView< const GlobalOrdinal > &elementList, GlobalOrdinal indexBase, std::vector< size_t > &stridingInfo, const Teuchos::RCP< const Teuchos::Comm< int > > &comm, LocalOrdinal stridedBlockId=-1)
virtual	~StridedMap ()
	Destructor.
Access functions for striding data
std::vector< size_t >	getStridingData () const
void	setStridingData (std::vector< size_t > stridingInfo)
size_t	getFixedBlockSize () const
LocalOrdinal	getStridedBlockId () const
bool	isStrided ()
	returns true, if this is a strided map (i.e. more than 1 strided blocks)
bool	isBlocked ()
GlobalOrdinal	getOffset () const
void	setOffset (GlobalOrdinal offset)
size_t	GID2StridingBlockId (GlobalOrdinal gid) const

Detailed Description

template<class LocalOrdinal, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
class Xpetra::StridedMap< LocalOrdinal, GlobalOrdinal, Node >

Class that stores a strided map.

StridedMap extends the functionality of Xpetra::Map

It derives from Xpetra::Map and adds a std::vector, which contains the striding information. E.g. for a strided map with 3dofs per node (2 velocity dofs, 1 pressure dof) the striding information looks like: std::vector<size_t> stridingInformation; stridingInformation.push_back(2); // 2 velocity dofs stridingInformation.push_back(1); // 1 pressure dof

For this example the getFixedBlockSize() returns 3 (3 dofs per node). Providing a stridedBlockId parameter in the constructor the strided map only contains dofs of one strided block, e.g. with above stridingInformation the call

StridingMap M(33,0,stridiningInformation,comm,0); // striding block 0 (velocity dofs) returns a map with the gids 0, 1, 3, 4, 6, 7, ... (which contains only the velocity dofs)

and StridingMap M(33,0,stridiningInformation,comm,1); // striding block 1 (pressure dofs) creates a map with only the pressure dofs 2, 5, 8, ...

Note:: : there's no support for global offset, yet.

Definition at line 100 of file Xpetra_StridedMap.hpp.