/usr/include/trilinos/fei_Graph_Impl.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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/* Copyright 2005 Sandia Corporation. */
/* Under the terms of Contract DE-AC04-94AL85000, there is a */
/* non-exclusive license for use of this work by or on behalf */
/* of the U.S. Government. Export of this program may require */
/* a license from the United States Government. */
/*--------------------------------------------------------------------*/
#ifndef _fei_Graph_Impl_hpp_
#define _fei_Graph_Impl_hpp_
#include <fei_iosfwd.hpp>
#include <fei_SharedPtr.hpp>
#include <fei_Graph.hpp>
#include <fei_mpi.h>
#include <fei_EqnComm.hpp>
namespace fei {
/** Basic algebraic matrix-graph representation. */
class Graph_Impl : public fei::Graph {
public:
/** constructor */
Graph_Impl(MPI_Comm comm, int firstLocalRow, int lastLocalRow);
/** destructor */
virtual ~Graph_Impl();
/** Add indices to a specified row of the table */
int addIndices(int row,
int len,
const int* indices);
/** Add a symmetric block of indices. The array of indices will serve as
both row-numbers, and as column-numbers in those rows.
*/
int addSymmetricIndices(int numIndices,
int* indices,
bool diagonal=false);
/** gather all remotely-owned table portions to owning processors */
int gatherFromOverlap();
/** Retrieve the local portion of the graph. i.e., The rows which
correspond to locally-owned IDs. */
table_type* getLocalGraph()
{
return( localGraphData_ );
}
/** Retrieve the remotely-owned portion of the graph. */
std::vector<remote_table_type*>& getRemoteGraph()
{
return( remoteGraphData_);
}
/** Write locally-owned portion of the graph to a specified ostream.*/
int writeLocalGraph(FEI_OSTREAM& os,
bool debug=false,
bool prefixLinesWithPoundSign=true);
/** Write remotely-owned portion of the graph to a specified ostream.*/
int writeRemoteGraph(FEI_OSTREAM& os);
/** Get the number of locally-owned rows. */
int getNumLocalRows();
/** Get the number of nonzeros in the locally-owned portion of
the graph. */
int getNumLocalNonzeros() const;
/** Get the length of a specified locally-owned row. */
int getLocalRowLength(int row);
private:
void addDiagonals(int numIndices, int* indices);
table_type* localGraphData_;
std::vector<remote_table_type*> remoteGraphData_;
fei::SharedPtr<fei::EqnComm> eqnComm_;
int firstLocalRow_, lastLocalRow_;
int localProc_, numProcs_;
MPI_Comm comm_;
};//class Graph_Impl
} //namespace fei
#endif // _fei_Graph_Impl_hpp_
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