Stokhos Package Browser (Single Doxygen Collection)
Version of the Day
|
A stochastic preconditioner based on applying two iterations of approximate Jacobi. More...
#include <Stokhos_ApproxJacobiPreconditioner.hpp>
Public Member Functions | |
ApproxJacobiPreconditioner (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_Map > &base_map, const Teuchos::RCP< const Epetra_Map > &sg_map, const Teuchos::RCP< Stokhos::AbstractPreconditionerFactory > &prec_factory, const Teuchos::RCP< Teuchos::ParameterList > ¶ms) | |
Constructor. More... | |
virtual | ~ApproxJacobiPreconditioner () |
Destructor. More... | |
Public Member Functions inherited from Stokhos::SGPreconditioner | |
SGPreconditioner () | |
Constructor. More... | |
virtual | ~SGPreconditioner () |
Destructor. More... | |
Protected Attributes | |
std::string | label |
Label for operator. More... | |
Teuchos::RCP< const EpetraExt::MultiComm > | sg_comm |
Stores SG parallel communicator. More... | |
Teuchos::RCP< const Stokhos::OrthogPolyBasis< int, double > > | sg_basis |
Stochastic Galerking basis. More... | |
Teuchos::RCP< const Stokhos::EpetraSparse3Tensor > | epetraCijk |
Stores Epetra Cijk tensor. More... | |
Teuchos::RCP< const Epetra_Map > | base_map |
Stores base map. More... | |
Teuchos::RCP< const Epetra_Map > | sg_map |
Stores SG map. More... | |
Teuchos::RCP < Stokhos::AbstractPreconditionerFactory > | prec_factory |
Stores factory for building mean preconditioner. More... | |
Teuchos::RCP< Epetra_Operator > | mean_prec |
Stores mean preconditioner. More... | |
bool | useTranspose |
Flag indicating whether transpose was selected. More... | |
int | num_iter |
Number of Jacobi iterations. More... | |
Teuchos::RCP< Stokhos::SGOperator > | sg_op |
Pointer to the SG operator. More... | |
Teuchos::RCP < Stokhos::EpetraOperatorOrthogPoly > | sg_poly |
Pointer to the PCE expansion of Jacobian. More... | |
Teuchos::RCP< Stokhos::SGOperator > | mat_free_op |
SG operator to implement SG mat-vec. More... | |
Teuchos::RCP < EpetraExt::BlockMultiVector > | rhs_block |
Temporary vector for storing rhs in Gauss-Seidel loop. More... | |
Private Member Functions | |
ApproxJacobiPreconditioner (const ApproxJacobiPreconditioner &) | |
Private to prohibit copying. More... | |
ApproxJacobiPreconditioner & | operator= (const ApproxJacobiPreconditioner &) |
Private to prohibit copying. More... | |
Stokhos::SGPreconditioner methods | |
virtual void | setupPreconditioner (const Teuchos::RCP< Stokhos::SGOperator > &sg_op, const Epetra_Vector &x) |
Setup preconditioner. More... | |
Epetra_Operator methods | |
virtual int | SetUseTranspose (bool UseTranspose) |
Set to true if the transpose of the operator is requested. More... | |
virtual int | Apply (const Epetra_MultiVector &Input, Epetra_MultiVector &Result) const |
Returns the result of a Epetra_Operator applied to a Epetra_MultiVector Input in Result as described above. More... | |
virtual int | ApplyInverse (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const |
Returns the result of the inverse of the operator applied to a Epetra_MultiVector Input in Result as described above. More... | |
virtual double | NormInf () const |
Returns an approximate infinity norm of the operator matrix. More... | |
virtual const char * | Label () const |
Returns a character string describing the operator. More... | |
virtual bool | UseTranspose () const |
Returns the current UseTranspose setting. More... | |
virtual bool | HasNormInf () const |
Returns true if the this object can provide an approximate Inf-norm, false otherwise. More... | |
virtual const Epetra_Comm & | Comm () const |
Returns a reference to the Epetra_Comm communicator associated with this operator. More... | |
virtual const Epetra_Map & | OperatorDomainMap () const |
Returns the Epetra_Map object associated with the domain of this matrix operator. More... | |
virtual const Epetra_Map & | OperatorRangeMap () const |
Returns the Epetra_Map object associated with the range of this matrix operator. More... | |
A stochastic preconditioner based on applying two iterations of approximate Jacobi.
Definition at line 63 of file Stokhos_ApproxJacobiPreconditioner.hpp.
Stokhos::ApproxJacobiPreconditioner::ApproxJacobiPreconditioner | ( | 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_Map > & | base_map, | ||
const Teuchos::RCP< const Epetra_Map > & | sg_map, | ||
const Teuchos::RCP< Stokhos::AbstractPreconditionerFactory > & | prec_factory, | ||
const Teuchos::RCP< Teuchos::ParameterList > & | params | ||
) |
Constructor.
Definition at line 47 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Destructor.
Definition at line 95 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
private |
Private to prohibit copying.
|
virtual |
Setup preconditioner.
Implements Stokhos::SGPreconditioner.
Definition at line 101 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Set to true if the transpose of the operator is requested.
Implements Epetra_Operator.
Definition at line 115 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns the result of a Epetra_Operator applied to a Epetra_MultiVector Input in Result as described above.
Implements Epetra_Operator.
Definition at line 127 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns the result of the inverse of the operator applied to a Epetra_MultiVector Input in Result as described above.
Implements Epetra_Operator.
Definition at line 134 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns an approximate infinity norm of the operator matrix.
Implements Epetra_Operator.
Definition at line 189 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns a character string describing the operator.
Implements Epetra_Operator.
Definition at line 197 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns the current UseTranspose setting.
Implements Epetra_Operator.
Definition at line 204 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns true if the this object can provide an approximate Inf-norm, false otherwise.
Implements Epetra_Operator.
Definition at line 211 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns a reference to the Epetra_Comm communicator associated with this operator.
Implements Epetra_Operator.
Definition at line 218 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns the Epetra_Map object associated with the domain of this matrix operator.
Implements Epetra_Operator.
Definition at line 224 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
virtual |
Returns the Epetra_Map object associated with the range of this matrix operator.
Implements Epetra_Operator.
Definition at line 231 of file Stokhos_ApproxJacobiPreconditioner.cpp.
|
private |
Private to prohibit copying.
|
protected |
Label for operator.
Definition at line 156 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stores SG parallel communicator.
Definition at line 159 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stochastic Galerking basis.
Definition at line 162 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stores Epetra Cijk tensor.
Definition at line 165 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stores base map.
Definition at line 168 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stores SG map.
Definition at line 171 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stores factory for building mean preconditioner.
Definition at line 174 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Stores mean preconditioner.
Definition at line 177 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Flag indicating whether transpose was selected.
Definition at line 180 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Number of Jacobi iterations.
Definition at line 183 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Pointer to the SG operator.
Definition at line 186 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
Pointer to the PCE expansion of Jacobian.
Definition at line 189 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
protected |
SG operator to implement SG mat-vec.
Definition at line 192 of file Stokhos_ApproxJacobiPreconditioner.hpp.
|
mutableprotected |
Temporary vector for storing rhs in Gauss-Seidel loop.
Definition at line 195 of file Stokhos_ApproxJacobiPreconditioner.hpp.