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Ifpack_Graph_Epetra_RowMatrix.cpp
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42 
43 #include "Ifpack_ConfigDefs.h"
44 #include "Ifpack_Graph.h"
46 #include "Epetra_Comm.h"
47 #include "Epetra_Map.h"
48 #include "Epetra_RowMatrix.h"
49 
50 //==============================================================================
51 Ifpack_Graph_Epetra_RowMatrix::Ifpack_Graph_Epetra_RowMatrix(const Teuchos::RefCountPtr<const Epetra_RowMatrix>& RowMatrix) :
52 RowMatrix_(RowMatrix)
53 {
54  NumMyRows_ = RowMatrix_->NumMyRows();
55  NumMyCols_ = RowMatrix_->NumMyCols();
56  NumGlobalRows_ = RowMatrix_->NumGlobalRows64();
57  NumGlobalCols_ = RowMatrix_->NumGlobalCols64();
58  MaxNumIndices_ = RowMatrix_->MaxNumEntries();
59 
60  Values_.resize(MaxNumIndices_);
61 }
62 
63 //==============================================================================
64 const Epetra_Comm& Ifpack_Graph_Epetra_RowMatrix::Comm() const
65 {
66  return(RowMatrix_->Comm());
67 }
68 
69 //==============================================================================
71 {
72  return(RowMatrix_->Filled());
73 }
74 
75 //==============================================================================
76 #ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
78 {
79  return(RowMatrix_->RowMatrixRowMap().GID(LRID_in));
80 }
81 
82 //==============================================================================
84 {
85  return(RowMatrix_->RowMatrixColMap().GID(LCID_in));
86 }
87 #endif
88 
89 long long Ifpack_Graph_Epetra_RowMatrix::GRID64(int LRID_in) const
90 {
91  return(RowMatrix_->RowMatrixRowMap().GID64(LRID_in));
92 }
93 
94 //==============================================================================
95 long long Ifpack_Graph_Epetra_RowMatrix::GCID64(int LCID_in) const
96 {
97  return(RowMatrix_->RowMatrixColMap().GID64(LCID_in));
98 }
99 
100 //==============================================================================
101 #ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
103 {
104  return(RowMatrix_->RowMatrixRowMap().LID(GRID_in));
105 }
106 
107 //==============================================================================
109 {
110  return(RowMatrix_->RowMatrixColMap().LID(GCID_in));
111 }
112 #endif
113 //==============================================================================
114 #ifndef EPETRA_NO_64BIT_GLOBAL_INDICES
115 int Ifpack_Graph_Epetra_RowMatrix::LRID(long long GRID_in) const
116 {
117  return(RowMatrix_->RowMatrixRowMap().LID(GRID_in));
118 }
119 
120 //==============================================================================
121 int Ifpack_Graph_Epetra_RowMatrix::LCID(long long GCID_in) const
122 {
123  return(RowMatrix_->RowMatrixColMap().LID(GCID_in));
124 }
125 #endif
126 //==============================================================================
128 ExtractMyRowCopy(int MyRow, int LenOfIndices,
129  int &NumIndices, int *Indices) const
130 {
131  return(RowMatrix_->ExtractMyRowCopy(MyRow, LenOfIndices,
132  NumIndices, &Values_[0],
133  Indices));
134 }
135 
136 //==============================================================================
138 {
139  return(RowMatrix_->NumMyNonzeros());
140 }
141 
142 // ======================================================================
143 std::ostream& Ifpack_Graph_Epetra_RowMatrix::Print(std::ostream& os) const
144 {
145  using std::endl;
146 
147  if (Comm().MyPID())
148  return(os);
149 
150  os << "================================================================================" << endl;
151  os << "Ifpack_Graph_Epetra_RowMatrix" << endl;
152  os << "Number of local rows = " << NumMyRows_ << endl;
153  os << "Number of global rows = " << NumGlobalRows_ << endl;
154  os << "================================================================================" << endl;
155 
156  return(os);
157 
158 }
159 
int LRID(int) const
Returns the local row ID of input global row.
std::vector< double > Values_
Vectors that can be used in calls to ExtractMyRowView of the Row matrix.
long long GCID64(int) const
Returns the global column ID of input local column.
int MaxNumIndices_
Maximum number of indices per row.
int NumMyCols_
Number of local columns.
int GRID(int) const
Returns the global row ID of input local row.
bool Filled() const
Returns true is graph is filled.
long long NumGlobalRows_
Number of global rows.
int LCID(int) const
Returns the local column ID of input global column.
const Epetra_Comm & Comm() const
Returns the communicator object of the graph.
int ExtractMyRowCopy(int GlobalRow, int LenOfIndices, int &NumIndices, int *Indices) const
Extracts a copy of input local row.
std::ostream & Print(std::ostream &os) const
Prints basic information abobut the graph object.
int NumMyNonzeros() const
Returns the number of local nonzero entries.
long long NumGlobalCols_
Number of global columns.
int GCID(int) const
Returns the global column ID of input local column.
Teuchos::RefCountPtr< const Epetra_RowMatrix > RowMatrix_
Pointer to the wrapped Epetra_CrsGraph.
Ifpack_Graph_Epetra_RowMatrix(const Teuchos::RefCountPtr< const Epetra_RowMatrix > &RowMatrix)
Constructor.