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// $Source: /space/CVS/Trilinos/packages/nox/src-loca/src-epetra/LOCA_Epetra_Group.H,v $
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// LOCA: Library of Continuation Algorithms Package
// Copyright (2005) Sandia Corporation
//
// Under 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.
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//@HEADER
#ifndef LOCA_EPETRA_GROUP_H
#define LOCA_EPETRA_GROUP_H
#include "LOCA_Abstract_Group.H" // base class
#include "LOCA_Abstract_TransposeSolveGroup.H" // base class
#include "NOX_Epetra_Group.H" // base class
#include "LOCA_Parameter_Vector.H" // class data element
#include "NOX_Common.H" // class data element (std::string)
#include "LOCA_Epetra_Interface_TimeDependent.H"
#include "LOCA_Epetra_Interface_FreeEnergy.H"
#include "LOCA_Epetra_Interface_TimeDependentMatrixFree.H"
// Forward declares
namespace Teuchos {
class ParameterList;
}
namespace LOCA {
namespace Epetra {
namespace Interface {
class Required;
}
namespace TransposeLinearSystem {
class AbstractStrategy;
}
}
}
namespace EpetraExt {
class BlockCrsMatrix;
class BlockVector;
}
class Epetra_BlockMap;
namespace LOCA {
//! %LOCA %Epetra support
namespace Epetra {
//! Extension of the NOX::Epetra::Group to %LOCA.
/*!
* This class extends the NOX::Epetra::Group to %LOCA enabling continuation
* and bifurcation capabilities using %Epetra. It is derived from
* the NOX::Epetra::Group (basic %Epetra support), the
* LOCA::Abstract::Group (brings in all %LOCA abstract base classes),
* and the LOCA::Abstract::TransposeSolveGroup (for
* applyJacobianTransposeInverse() methods). It stores a parameter vector
* for setting/retrieving parameter values and overloads the computeF()
* and computeJacobian() methods of the NOX::Epetra::Group
* parent class to set the entire contents
* of the parameter vector in the problem interface before calling the
* NOX::Epetra::Group computeF() and computeJacobian().
* Since it is derived from the LOCA::Abstract::Group (which is in turn
* derived from all FiniteDifference groups), it uses the finite-difference
* implementations for all parameter derivatives and second derivatives.
* However this behavior can be modified by calling the setDerivUtils()
* method of the LOCA::MultiContinuation::FiniteDifferenceGroup parent
* class.
*
* This class provides complete support for all continuation and
* bifurcation methods including shift-invert and Cayley methods
* for computing eigenvalues and Hopf bifurcations. However this support
* is only enabled by calling the appropriate constructor described below.
*/
class Group : public virtual NOX::Epetra::Group,
public virtual LOCA::Abstract::Group,
public virtual LOCA::Abstract::TransposeSolveGroup {
public:
//! Constructor with NO linear system (VERY LIMITED).
/*!
* WARNING: If this constructor is used, then methods that require
* a Jacobian or preconditioning will not be available. You will be
* limited to simple algorithms like nonlinear-CG with no
* preconditioning.
*/
Group(const Teuchos::RCP<LOCA::GlobalData>& global_data,
Teuchos::ParameterList& printingParams,
const Teuchos::RCP<LOCA::Epetra::Interface::Required>& i,
NOX::Epetra::Vector& initialGuess,
const LOCA::ParameterVector& p);
//! Standard Constructor enabling most %LOCA support
/*!
* This is the most commonly used constructor and provides support for
* all %LOCA algorithms except shift-invert and Cayley transformations
* and Hopf bifurcations.
*/
Group(const Teuchos::RCP<LOCA::GlobalData>& global_data,
Teuchos::ParameterList& printingParams,
const Teuchos::RCP<LOCA::Epetra::Interface::Required>& i,
NOX::Epetra::Vector& initialGuess,
const Teuchos::RCP<NOX::Epetra::LinearSystem>& linSys,
const LOCA::ParameterVector& p);
//! Constructor with time-dependent interface and shifted linear system
/*!
* Use this constructor to enable shift-invert and Cayley transformations
* or Hopf bifurcations. It requires another interface to compute the
* shifted matrix \f$\alpha J + \beta M\f$ where \f$J\f$ is the
* Jacobian matrix and \f$M\f$ is the mass matrix, and a linear
* system object to solve this system. Setting linSys = shiftedLinSys
* is a valid option for passing the shifted solver, but this will cause
* the shifted matrix to overwrite the Jacobian possibly resulting in
* more matrix fills.
* See declareSeparateMatrixMemory() method below to assert separate memory.
*/
Group(
const Teuchos::RCP<LOCA::GlobalData>& global_data,
Teuchos::ParameterList& printingParams,
const Teuchos::RCP<LOCA::Epetra::Interface::TimeDependent>& i,
NOX::Epetra::Vector& initialGuess,
const Teuchos::RCP<NOX::Epetra::LinearSystem>& linSys,
const Teuchos::RCP<NOX::Epetra::LinearSystem>& shiftedLinSys,
const LOCA::ParameterVector& p);
/*!
* \brief Constructor with time-dependent matrix-free interface and
* shifted linear system
*/
/*!
* This constructor may also be used for shift-invert and Cayley
* transformations, but should be only be used for a matrix-free
* method for solving the shifted system.
*/
Group(
const Teuchos::RCP<LOCA::GlobalData>& global_data,
Teuchos::ParameterList& printingParams,
const Teuchos::RCP<LOCA::Epetra::Interface::TimeDependentMatrixFree>& i,
NOX::Epetra::Vector& initialGuess,
const Teuchos::RCP<NOX::Epetra::LinearSystem>& linSys,
const Teuchos::RCP<NOX::Epetra::LinearSystem>& shiftedLinSys,
const LOCA::ParameterVector& p);
/*!
* \brief Copy constructor. If type is DeepCopy, takes ownership of
* valid shared Jacobian and shared preconditioning matrix.
*/
Group(const Group& source, NOX::CopyType type = NOX::DeepCopy);
//! Destructor.
virtual ~Group();
//! Assignment operator
virtual Group& operator=(const Group& source);
/*!
* @name Overloaded NOX::Epetra::Group methods.
*/
//@{
//! Assignment operator.
virtual NOX::Abstract::Group&
operator=(const NOX::Abstract::Group& source);
//! Assignment operator.
virtual NOX::Abstract::Group&
operator=(const NOX::Epetra::Group& source);
//! Cloning function
virtual Teuchos::RCP<NOX::Abstract::Group>
clone(NOX::CopyType type = NOX::DeepCopy) const;
//! Overloaded computeF()
/*!
* Calls LOCA::Epetra::Interface::setParams before evalulating F.
*/
virtual NOX::Abstract::Group::ReturnType
computeF();
//! Overloaded computeJacobian()
/*!
* Calls LOCA::Epetra::Interface::setParams before evalulating J.
*/
virtual NOX::Abstract::Group::ReturnType
computeJacobian();
//@}
/*!
* @name Implementation of LOCA::Abstract::TransposeSolveGroup methods.
*/
//@{
//! Solve Jacobian-tranpose system
/*!
* In addition to all regular linear solver parameters, this method
* references the following additional parameters:
* <ul>
* <li> "Transpose Solver Method" -- [string]
* (default: "Transpose Preconditioner") Method for preconditioning
* the transpose linear system
* (LOCA::Epetra::TransposeLinearSystem::Factory). Available
* choices are:
* <ul>
* <li> "Transpose Preconditioner" -- Use the transpose of the
* preconditioner for the original system.
* <li> "Left Preconditioning" -- Use the transpose of the
* preconditioner, and apply using left preconditioning.
* <li> "Explicit Transpose" -- Form the transpose of the matrix and
* compute the preconditioner. This method is available only if
* Trilinos is configured with %EpetraExt support
* (--enable-epetraext).
* </ul>
* </ul>
*/
virtual NOX::Abstract::Group::ReturnType
applyJacobianTransposeInverse(Teuchos::ParameterList& params,
const NOX::Abstract::Vector& input,
NOX::Abstract::Vector& result) const;
//! Solve Jacobian-tranpose system with multiple right-hand sides
/*!
* In addition to all regular linear solver parameters, this method
* references the following additional parameters:
* <ul>
* <li> "Transpose Solver Method" -- [string]
* (default: "Transpose Preconditioner") Method for preconditioning
* the transpose linear system
* (LOCA::Epetra::TransposeLinearSystem::Factory). Available
* choices are:
* <ul>
* <li> "Transpose Preconditioner" -- Use the transpose of the
* preconditioner for the original system.
* <li> "Left Preconditioning" -- Use the transpose of the
* preconditioner, and apply using left preconditioning.
* <li> "Explicit Transpose" -- Form the transpose of the matrix and
* compute the preconditioner. This method is available only if
* Trilinos is configured with %EpetraExt support
* (--enable-epetraext).
* </ul>
* </ul>
*/
virtual NOX::Abstract::Group::ReturnType
applyJacobianTransposeInverseMultiVector(
Teuchos::ParameterList& params,
const NOX::Abstract::MultiVector& input,
NOX::Abstract::MultiVector& result) const;
//@}
/*!
* @name Implementation of LOCA::MultiContinuation::AbstractGroup virtual methods.
*/
//@{
//! Copy
virtual void copy(const NOX::Abstract::Group& source);
//! Set the parameters
virtual void setParams(const ParameterVector& p);
//! Set parameter indexed by paramID
virtual void setParam(int paramID, double val);
//! Set parameter indexed by paramID
virtual void setParam(std::string paramID, double val);
//! Return a const reference to the ParameterVector owned by the group.
const LOCA::ParameterVector& getParams() const;
//! Return copy of parameter indexed by paramID
virtual double getParam(int paramID) const;
//! Return copy of parameter indexed by paramID
virtual double getParam(std::string paramID) const;
//! Perform any preprocessing before a continuation step starts.
/*!
* The \c stepStatus argument indicates whether the previous step was
* successful. The implementation here is to call the corresponding
* method in the interface.
*/
virtual void
preProcessContinuationStep(
LOCA::Abstract::Iterator::StepStatus stepStatus);
//! Perform any postprocessing after a continuation step finishes.
/*!
* The \c stepStatus argument indicates whether the step was
* successful. The implementation here is to call the corresponding
* method in the interface.
*/
virtual void
postProcessContinuationStep(
LOCA::Abstract::Iterator::StepStatus stepStatus);
//! Projects solution to a few scalars for multiparameter continuation
/*!
* This method is called every time a solution is saved by the
* multiparameter continuation code MF for later visualization
* and should project the solution vector down to a few scalars.
* The array \c px will be preallocated to the proper length
* given by projectToDrawDimension().
*
* The implementation here is to call the corresponding method
* in the interface.
*/
virtual void projectToDraw(const NOX::Abstract::Vector& x,
double *px) const;
//! Returns the dimension of the project to draw array
/*!
* The implementation here is to call the corresponding method
* in the interface.
*/
virtual int projectToDrawDimension() const;
//! Compute a scaled dot product
/*!
* The implementation here uses the scaling vector \f$s\f$ if one
* is supplied:
* \f[
* \sum_{i=1}^n a_i*b_i*s_i*s_i.
* \f]
* If the scaling vector is not provided, the standard dot product
* is used.
*/
virtual double
computeScaledDotProduct(const NOX::Abstract::Vector& a,
const NOX::Abstract::Vector& b) const;
//! Call the user interface print() routine, solution vector
virtual void printSolution(const double conParam) const;
//! Call the user interface print() routine, any vector
virtual void printSolution(const NOX::Abstract::Vector& x,
const double conParam) const;
//! Scales a vector using scaling vector
/*!
* The implementation here uses the scaling vector \f$s\f$ if one
* is supplied:
* \f[
* x_i = a_i*s_i.
* \f]
* If the scaling vector is not provided, the vector is rescaled by
* the square root of its length.
*/
virtual void
scaleVector(NOX::Abstract::Vector& x) const;
//@}
/*!
* @name Implementation of LOCA::Homotopy::AbstractGroup virtual methods.
*/
//@{
/*!
* \brief Replace Jacobian \f$J\f$ by \f$aJ+bI\f$ where \f$I\f$ is
* the identity matrix.
*/
virtual NOX::Abstract::Group::ReturnType
augmentJacobianForHomotopy(double a, double b);
//@}
/*!
* @name Implementation of LOCA::TimeDependent::AbstractGroup virtual methods.
*/
//@{
//! Compute the shifted matrix
virtual NOX::Abstract::Group::ReturnType
computeShiftedMatrix(double alpha, double beta);
//! Multiply the shifted matrix by a vector.
virtual NOX::Abstract::Group::ReturnType
applyShiftedMatrix(const NOX::Abstract::Vector& input,
NOX::Abstract::Vector& result) const;
//! Multiply the shifted matrix by a multi-vector.
virtual NOX::Abstract::Group::ReturnType
applyShiftedMatrixMultiVector(
const NOX::Abstract::MultiVector& input,
NOX::Abstract::MultiVector& result) const;
/*!
* \brief Apply the inverse of the shifted matrix by a multi-vector, as
* needed by the shift-and-invert and generalized Cayley transformations.
*/
virtual NOX::Abstract::Group::ReturnType
applyShiftedMatrixInverseMultiVector(
Teuchos::ParameterList& params,
const NOX::Abstract::MultiVector& input,
NOX::Abstract::MultiVector& result) const;
//! Compute the second shifted matrix (uses different memory then Shifted matrix)
virtual NOX::Abstract::Group::ReturnType
computeSecondShiftedMatrix(double alpha, double beta);
//! Multiply the second shifted matrix by a vector.
virtual NOX::Abstract::Group::ReturnType
applySecondShiftedMatrix(const NOX::Abstract::Vector& input,
NOX::Abstract::Vector& result) const;
//! Multiply the second shifted matrix by a multi-vector.
virtual NOX::Abstract::Group::ReturnType
applySecondShiftedMatrixMultiVector(
const NOX::Abstract::MultiVector& input,
NOX::Abstract::MultiVector& result) const;
//@}
/*!
* @name Implementation of LOCA::Hopf::MooreSpence::AbstractGroup virtual methods.
*/
//@{
//! Is \f$J+i\omega B\f$ valid
virtual bool isComplex() const;
//! Compute \f$J+i\omega B\f$
/*!
* The argument \b frequency stores \f$\omega\f$.
*/
virtual NOX::Abstract::Group::ReturnType
computeComplex(double frequency);
//! Compute \f$(J+i\omega B)(y+iz)\f$
virtual NOX::Abstract::Group::ReturnType
applyComplex(const NOX::Abstract::Vector& input_real,
const NOX::Abstract::Vector& input_imag,
NOX::Abstract::Vector& result_real,
NOX::Abstract::Vector& result_imag) const;
//! Compute \f$(J+i\omega B)(y+iz)\f$
virtual NOX::Abstract::Group::ReturnType
applyComplexMultiVector(
const NOX::Abstract::MultiVector& input_real,
const NOX::Abstract::MultiVector& input_imag,
NOX::Abstract::MultiVector& result_real,
NOX::Abstract::MultiVector& result_imag) const;
//! Solve \f$(J+i\omega B)(y+iz) = a+ib\f$
virtual NOX::Abstract::Group::ReturnType
applyComplexInverseMultiVector(
Teuchos::ParameterList& params,
const NOX::Abstract::MultiVector& input_real,
const NOX::Abstract::MultiVector& input_imag,
NOX::Abstract::MultiVector& result_real,
NOX::Abstract::MultiVector& result_imag) const;
//@}
/*!
* @name Implementation of LOCA::Hopf::MinimallyAugmented::AbstractGroup virtual methods.
*/
//@{
/*!
* Computes conjugate-tranpose matrix vector product
* \f$ (J+i\omega B)^H (x + iy) \f$.
*/
virtual NOX::Abstract::Group::ReturnType
applyComplexTranspose(const NOX::Abstract::Vector& input_real,
const NOX::Abstract::Vector& input_imag,
NOX::Abstract::Vector& result_real,
NOX::Abstract::Vector& result_imag) const;
/*!
* Computes conjugate-tranpose matrix vector product
* \f$ (J+i\omega B)^H (x + iy) \f$.
*/
virtual NOX::Abstract::Group::ReturnType
applyComplexTransposeMultiVector(
const NOX::Abstract::MultiVector& input_real,
const NOX::Abstract::MultiVector& input_imag,
NOX::Abstract::MultiVector& result_real,
NOX::Abstract::MultiVector& result_imag) const;
//! Solve \f$(J+i\omega B)^H (x + iy) = a+ib\f$
virtual NOX::Abstract::Group::ReturnType
applyComplexTransposeInverseMultiVector(
Teuchos::ParameterList& params,
const NOX::Abstract::MultiVector& input_real,
const NOX::Abstract::MultiVector& input_imag,
NOX::Abstract::MultiVector& result_real,
NOX::Abstract::MultiVector& result_imag) const;
//@}
//! Method to inject an interface for calucatiuong the free energy
virtual void setFreeEnergyInterface(
const Teuchos::RCP<LOCA::Epetra::Interface::FreeEnergy>& iFE);
//! Method for calling code to guarantee to LOCA that separate matrix
// memory was used for linSys and shiftedLinSys (see 3rd constructor)
void declareSeparateMatrixMemory(bool separateMem=true);
/*!
* @name Implementation of LOCA::PhseTransition::AbstractGroup virtual methods.
*/
//@{
virtual double computeFreeEnergy();
//@}
//! Return the userInterface.
virtual Teuchos::RCP<NOX::Epetra::Interface::Required>
getUserInterface();
//! Call the user interface print() routine, any vector
virtual void printSolution(const NOX::Epetra::Vector& x,
const double conParam) const;
//! Sets the scale vector.
void setScaleVector(const NOX::Abstract::Vector& s);
//! Sets the Jacobian operator
void setJacobianOperatorForSolve(
const Teuchos::RCP<const Epetra_Operator>& op) const;
//! Return the Linear System.
virtual Teuchos::RCP<const NOX::Epetra::LinearSystem>
getComplexLinearSystem() const;
//! Return the Linear System.
virtual Teuchos::RCP<NOX::Epetra::LinearSystem>
getComplexLinearSystem();
virtual void
getComplexMaps(Teuchos::RCP<const Epetra_BlockMap>& baseMap,
Teuchos::RCP<const Epetra_BlockMap>& globalMap) const;
protected:
//! resets the isValid flags to false
virtual void resetIsValid();
protected:
//! Global data
Teuchos::RCP<LOCA::GlobalData> globalData;
//! Printing parameters
Teuchos::ParameterList& printParams;
//! Parameter vector
LOCA::ParameterVector params;
//! Reference to the user supplied interface functions
Teuchos::RCP<LOCA::Epetra::Interface::Required> userInterface;
//! Interface for shifted-matrix
Teuchos::RCP<LOCA::Epetra::Interface::TimeDependent> userInterfaceTime;
//! Interface for matrix-free shifted-matrix
Teuchos::RCP<LOCA::Epetra::Interface::TimeDependentMatrixFree> userInterfaceTimeMF;
//! Interface for free enerfgy calculation for phase transitions
Teuchos::RCP<LOCA::Epetra::Interface::FreeEnergy> userInterfaceFreeEnergy;
//! Shared shifted linear system
Teuchos::RCP< NOX::SharedObject<NOX::Epetra::LinearSystem,
LOCA::Epetra::Group> > shiftedSharedLinearSystem;
//! Is preconditioner for shifted matrix valid
mutable bool isValidShiftedPrec;
//! \f$\alpha\f$ for matrix-free shifted matrix
double alpha_;
//! \f$\beta\f$ for matrix-free shifted matrix
double beta_;
//! Extra vector needed for intermediate calculations of LOCA routines.
/*! NOTE: there already is a tmpVectorPtr in the NOX::Epetra::Group.
* This is a second temporary vector if that one extra isn't enough.
*/
Teuchos::RCP<Epetra_Vector> tmpVectorPtr2;
//! Stores a pointer to the scale vector
Teuchos::RCP<NOX::Abstract::Vector> scaleVecPtr;
//! Stores transpose linear solver strategy
mutable Teuchos::RCP<LOCA::Epetra::TransposeLinearSystem::AbstractStrategy> tls_strategy;
//! Shared complex system
mutable Teuchos::RCP< NOX::SharedObject<NOX::Epetra::LinearSystem, LOCA::Epetra::Group> > complexSharedLinearSystem;
//! Complex matrix
Teuchos::RCP<EpetraExt::BlockCrsMatrix> complexMatrix;
//! Complex vector
Teuchos::RCP<EpetraExt::BlockVector> complexVec;
//! Is complex matrix valid
bool isValidComplex;
//! Is complex matrix preconditioner valid
mutable bool isValidComplexPrec;
//! Is complex matrix valid
bool separateMatrixMemoryDeclared;
};
} // namespace Epetra
} // namespace LOCA
#endif
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