/usr/include/trilinos/Stokhos_InterlacedOperator.hpp is in libtrilinos-stokhos-dev 12.10.1-3.
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#ifndef STOKHOS_INTERLACED_OPERATOR_HPP
#define STOKHOS_INTERLACED_OPERATOR_HPP
#include "Stokhos_SGOperator.hpp"
#include "EpetraExt_MultiComm.h"
#include "Stokhos_OrthogPolyBasis.hpp"
#include "Stokhos_EpetraSparse3Tensor.hpp"
#include "Teuchos_ParameterList.hpp"
#include "EpetraExt_BlockCrsMatrix.h"
#include <vector>
namespace Stokhos {
/*!
* \brief An Epetra operator representing the block stochastic Galerkin
* operator generated by fully assembling the matrix. The ordering of this
* operator is interlaced. That means that all stochastic degrees of freedom
* associated with a deterministic degree of freedom are interlaced. The result
* is a large sparse matrix that is composed of small (relatively) dense blocks.
*/
class InterlacedOperator :
public Stokhos::SGOperator,
public EpetraExt::BlockCrsMatrix {
public:
//! Constructor
InterlacedOperator(
const Teuchos::RCP<const EpetraExt::MultiComm>& sg_comm,
const Teuchos::RCP<const Stokhos::OrthogPolyBasis<int,double> >& sg_basis,
const Teuchos::RCP<const Stokhos::EpetraSparse3Tensor>& epetraCijk,
const Teuchos::RCP<const Epetra_CrsGraph>& base_graph,
const Teuchos::RCP<Teuchos::ParameterList>& params);
//! Destructor
virtual ~InterlacedOperator();
/** \name Stokhos::SGOperator methods */
//@{
//! Setup operator
virtual void setupOperator(
const Teuchos::RCP<Stokhos::EpetraOperatorOrthogPoly >& poly);
//! Get SG polynomial
virtual Teuchos::RCP< Stokhos::EpetraOperatorOrthogPoly >
getSGPolynomial();
//! Get SG polynomial
virtual Teuchos::RCP<const Stokhos::EpetraOperatorOrthogPoly >
getSGPolynomial() const;
//@}
//! Sum into global matrix
void SumIntoGlobalBlock_Deterministic(double alpha,const Epetra_RowMatrix & determBlock,int Row,int Col);
private:
//! Private to prohibit copying
InterlacedOperator(const InterlacedOperator&);
//! Private to prohibit copying
InterlacedOperator& operator=(const InterlacedOperator&);
protected:
//! Stores SG parallel communicator
Teuchos::RCP<const EpetraExt::MultiComm> sg_comm;
//! Stochastic Galerking basis
Teuchos::RCP<const Stokhos::OrthogPolyBasis<int,double> > sg_basis;
//! Stores Epetra Cijk tensor
Teuchos::RCP<const Stokhos::EpetraSparse3Tensor> epetraCijk;
//! Short-hand for Cijk
typedef Stokhos::Sparse3Tensor<int,double> Cijk_type;
//! Stores triple product tensor
Teuchos::RCP<const Cijk_type> Cijk;
//! Stores operators
Teuchos::RCP<Stokhos::EpetraOperatorOrthogPoly > block_ops;
//! Flag indicating whether operator be scaled with <\psi_i^2>
bool scale_op;
//! Flag indicating whether to include mean term
bool include_mean;
//! Flag indicating whether to only use linear terms
bool only_use_linear;
int determOffset_;
}; // class InterlacedOperator
} // namespace Stokhos
#endif // STOKHOS_INTERLACED_OPERATOR_HPP
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