43#ifndef IFPACK2_OVERLAPGRAPH_HPP
44#define IFPACK2_OVERLAPGRAPH_HPP
46#include "Ifpack2_ConfigDefs.hpp"
47#include "Tpetra_CrsGraph.hpp"
48#include "Tpetra_Import.hpp"
49#include "Teuchos_RCP.hpp"
50#include "Ifpack2_CreateOverlapGraph.hpp"
72template<class LocalOrdinal = typename Tpetra::CrsGraph<>::local_ordinal_type,
73 class GlobalOrdinal =
typename Tpetra::CrsGraph<LocalOrdinal>::global_ordinal_type,
74 class Node =
typename Tpetra::CrsGraph<LocalOrdinal, GlobalOrdinal>::node_type>
78 typedef Tpetra::CrsGraph<LocalOrdinal, GlobalOrdinal, Node>
graph_type;
86 OverlapGraph (
const Teuchos::RCP<const graph_type>& UserMatrixGraph_in,
96 const Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node>&
100 const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node>&
104 const Tpetra::Import<LocalOrdinal,GlobalOrdinal,Node>&
118 Teuchos::RCP<const Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node> > OverlapGraph_;
119 Teuchos::RCP<const Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node> > UserMatrixGraph_;
120 Teuchos::RCP<Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > OverlapRowMap_;
121 Teuchos::RCP<Tpetra::Import<LocalOrdinal,GlobalOrdinal,Node> > OverlapImporter_;
126template<
class LocalOrdinal,
class GlobalOrdinal,
class Node>
128OverlapGraph (
const Teuchos::RCP<
const Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node> >& UserMatrixGraph_in,
130 : UserMatrixGraph_ (UserMatrixGraph_in),
131 OverlapLevel_ (OverlapLevel_in),
132 IsOverlapped_ (OverlapLevel_in > 0 && UserMatrixGraph_in->getDomainMap ()->isDistributed ())
137template<
class LocalOrdinal,
class GlobalOrdinal,
class Node>
140 : UserMatrixGraph_ (Source.UserMatrixGraph_),
141 OverlapRowMap_ (Source.OverlapRowMap_),
142 OverlapLevel_ (Source.OverlapLevel_),
143 IsOverlapped_ (Source.IsOverlapped_)
146 typedef Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> map_type;
149 if (! OverlapGraph_.is_null ()) {
150 OverlapGraph_ = rcp (
new graph_type (*OverlapGraph_));
152 if (! OverlapRowMap_.is_null ()) {
153 OverlapRowMap_ = rcp (
new map_type (*OverlapRowMap_));
Construct an overlapped graph from a given nonoverlapping graph.
Definition Ifpack2_OverlapGraph.hpp:75
OverlapGraph(const Teuchos::RCP< const graph_type > &UserMatrixGraph_in, int OverlapLevel_in)
Constructor that takes a graph and the level of overlap.
Definition Ifpack2_OverlapGraph.hpp:128
const Tpetra::Import< LocalOrdinal, GlobalOrdinal, Node > & getOverlapImporter() const
Return the Import object.
Definition Ifpack2_OverlapGraph.hpp:105
const Tpetra::Map< LocalOrdinal, GlobalOrdinal, Node > & getOverlapRowMap() const
Return the overlap graph's row Map.
Definition Ifpack2_OverlapGraph.hpp:101
int OverlapLevel() const
Return the level of overlap used to create this graph.
Definition Ifpack2_OverlapGraph.hpp:114
virtual ~OverlapGraph()
Destructor (virtual for memory safety of derived classes).
Definition Ifpack2_OverlapGraph.hpp:93
const Tpetra::CrsGraph< LocalOrdinal, GlobalOrdinal, Node > & getOverlapGraph() const
Return the overlap graph.
Definition Ifpack2_OverlapGraph.hpp:97
Tpetra::CrsGraph< LocalOrdinal, GlobalOrdinal, Node > graph_type
The Tpetra::CrsGraph specialization that this class uses.
Definition Ifpack2_OverlapGraph.hpp:78
Preconditioners and smoothers for Tpetra sparse matrices.
Definition Ifpack2_AdditiveSchwarz_decl.hpp:74
Teuchos::RCP< const GraphType > createOverlapGraph(const Teuchos::RCP< const GraphType > &inputGraph, const int overlapLevel)
Construct an overlapped graph for use with Ifpack2 preconditioners.
Definition Ifpack2_CreateOverlapGraph.hpp:73