Ifpack Package Browser (Single Doxygen Collection) Development
Loading...
Searching...
No Matches
Ifpack_Graph_Epetra_CrsGraph.cpp
Go to the documentation of this file.
1/*@HEADER
2// ***********************************************************************
3//
4// Ifpack: Object-Oriented Algebraic Preconditioner Package
5// Copyright (2002) Sandia Corporation
6//
7// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
8// license for use of this work by or on behalf of the U.S. Government.
9//
10// Redistribution and use in source and binary forms, with or without
11// modification, are permitted provided that the following conditions are
12// met:
13//
14// 1. Redistributions of source code must retain the above copyright
15// notice, this list of conditions and the following disclaimer.
16//
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
19// documentation and/or other materials provided with the distribution.
20//
21// 3. Neither the name of the Corporation nor the names of the
22// contributors may be used to endorse or promote products derived from
23// this software without specific prior written permission.
24//
25// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
29// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36//
37// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
38//
39// ***********************************************************************
40//@HEADER
41*/
42
43#include "Ifpack_ConfigDefs.h"
44#include "Ifpack_Graph.h"
46#include "Epetra_Comm.h"
47#include "Epetra_CrsGraph.h"
48
49//==============================================================================
51Ifpack_Graph_Epetra_CrsGraph(const Teuchos::RefCountPtr<const Epetra_CrsGraph>& CrsGraph) :
52CrsGraph_(CrsGraph)
53{
54 NumMyRows_ = CrsGraph_->NumMyRows();
55 NumMyCols_ = CrsGraph_->NumMyCols();
56 NumGlobalRows_ = CrsGraph_->NumGlobalRows64();
57 NumGlobalCols_ = CrsGraph_->NumGlobalCols64();
58 MaxNumIndices_ = CrsGraph_->MaxNumIndices();
59}
60
61//==============================================================================
63{
64 return(CrsGraph_->Comm());
65}
66
67//==============================================================================
69{
70 return(CrsGraph_->Filled());
71}
72
73//==============================================================================
74#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
76{
77 return(CrsGraph_->GRID(LRID_in));
78}
79
80//==============================================================================
82{
83 return(CrsGraph_->GCID(LCID_in));
84}
85#endif
86
87long long Ifpack_Graph_Epetra_CrsGraph::GRID64(int LRID_in) const
88{
89 return(CrsGraph_->GRID64(LRID_in));
90}
91
92//==============================================================================
93long long Ifpack_Graph_Epetra_CrsGraph::GCID64(int LCID_in) const
94{
95 return(CrsGraph_->GCID64(LCID_in));
96}
97
98//==============================================================================
99#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
101{
102 return(CrsGraph_->LRID(GRID_in));
103}
104
105//==============================================================================
107{
108 return(CrsGraph_->LCID(GCID_in));
109}
110#endif
111
112//==============================================================================
113#ifndef EPETRA_NO_64BIT_GLOBAL_INDICES
114int Ifpack_Graph_Epetra_CrsGraph::LRID(long long GRID_in) const
115{
116 return(CrsGraph_->LRID(GRID_in));
117}
118
119//==============================================================================
120int Ifpack_Graph_Epetra_CrsGraph::LCID(long long GCID_in) const
121{
122 return(CrsGraph_->LCID(GCID_in));
123}
124#endif
125//==============================================================================
127ExtractMyRowCopy(int MyRow, int LenOfIndices,
128 int &NumIndices, int *Indices) const
129{
130 return(CrsGraph_->ExtractMyRowCopy(MyRow, LenOfIndices,
131 NumIndices, Indices));
132}
133
134//==============================================================================
136{
137 return(CrsGraph_->NumMyEntries());
138}
139
140// ======================================================================
141std::ostream& Ifpack_Graph_Epetra_CrsGraph::Print(std::ostream& os) const
142{
143 using std::endl;
144
145 if (Comm().MyPID())
146 return(os);
147
148 os << "================================================================================" << endl;
149 os << "Ifpack_Graph_Epetra_CrsGraph" << endl;
150 os << "Number of local rows = " << NumMyRows_ << endl;
151 os << "Number of global rows = " << NumGlobalRows_ << endl;
152 os << "================================================================================" << endl;
153
154 return(os);
155
156}
bool Filled() const
Returns true is graph is filled.
int GCID(int) const
Returns the global column ID of input local column.
int LRID(int) const
Returns the local row ID of input global row.
Ifpack_Graph_Epetra_CrsGraph(const Teuchos::RefCountPtr< const Epetra_CrsGraph > &CrsGraph)
Constructor.
int NumMyNonzeros() const
Returns the number of local nonzero entries.
int NumMyCols_
Number of local columns.
int MaxNumIndices_
Maximum number of indices per row.
int LCID(int) const
Returns the local column ID of input global column.
long long NumGlobalRows_
Number of global rows.
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.
virtual std::ostream & Print(std::ostream &os) const
Prints basic information about the graph object.
long long NumGlobalCols_
Number of global columns.
int GRID(int) const
Returns the global row ID of input local row.
long long GCID64(int) const
Returns the global column ID of input local column.
Teuchos::RefCountPtr< const Epetra_CrsGraph > CrsGraph_
Pointer to the wrapped Epetra_CrsGraph.