/usr/include/trilinos/Xpetra_MatrixView.hpp is in libtrilinos-xpetra-dev 12.4.2-2.
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//
// ***********************************************************************
//
// Xpetra: A linear algebra interface package
// Copyright 2012 Sandia Corporation
//
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// @HEADER
// WARNING: This code is experimental. Backwards compatibility should not be expected.
#ifndef XPETRA_MATRIXVIEW_HPP
#define XPETRA_MATRIXVIEW_HPP
#include <Teuchos_Describable.hpp>
#include <Kokkos_DefaultNode.hpp>
#include "Xpetra_ConfigDefs.hpp"
#include "Xpetra_Map.hpp"
/** \file Xpetra_MatrixView.hpp
Declarations for the class Xpetra::MatrixView.
*/
namespace Xpetra {
template <class Scalar = double,
class LocalOrdinal = Map<>::local_ordinal_type,
class GlobalOrdinal = typename Map<LocalOrdinal>::global_ordinal_type,
class Node = typename Map<LocalOrdinal, GlobalOrdinal>::node_type>
class MatrixView { // TODO : virtual public Teuchos::Describable {
typedef Xpetra::Map<LocalOrdinal, GlobalOrdinal, Node> Map;
public:
//! @name Constructor/Destructor Methods
//@{
//! Constructor
MatrixView(const RCP<const Map> &rowMap, const RCP<const Map> &colMap)
: rowMap_ (rowMap), colMap_(colMap), maxEigValueEstimate_(-Teuchos::ScalarTraits<Scalar>::one())
{ }
//! Destructor
virtual ~MatrixView() {}
//@}
//! @name Map access methods
//@{
//! Returns the Map that describes the row distribution in this matrix.
const RCP<const Map> & GetRowMap() const { return rowMap_; }
//! \brief Returns the Map that describes the column distribution in this matrix.
const RCP<const Map> & GetColMap() const { return colMap_; }
//! Returns the Map that describes the row distribution in this matrix.
void SetRowMap(const RCP<const Map> & rowMap) { rowMap_ = rowMap; }
//! \brief Set the Map that describes the column distribution in this matrix.
void SetColMap(const RCP<const Map> & colMap) { colMap_ = colMap; }
//@}
//! \brief Set an maximum eigenvalue estimate for this matrix.
void SetMaxEigenvalueEstimate(Scalar const &sigma) { maxEigValueEstimate_ = sigma; }
//! \brief Return the maximum eigenvalue estimate for this matrix.
Scalar GetMaxEigenvalueEstimate() const { return maxEigValueEstimate_; }
private:
RCP<const Map> rowMap_;
RCP<const Map> colMap_;
Scalar maxEigValueEstimate_;
}; // class MatrixView
} // namespace Xpetra
#define XPETRA_MATRIXVIEW_SHORT
#endif //XPETRA_MATRIX_VIEW_DECL_HPP
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