TimeProblem_decl.hpp

#ifndef TIMEPROBLEM_DECL_hpp
#define TIMEPROBLEM_DECL_hpp
 
#include "feddlib/problems/problems_config.h"
#include "feddlib/core/FEDDCore.hpp"
#include "Problem.hpp"
 
#include <Thyra_StateFuncModelEvaluatorBase.hpp>

 
 
/*
 If nonlinear iterative scheme is used, assemble() always assembles the Oseen system (FixedPoint).
 reAssemble("Newton") then assembles the Newton system. We need to adapt the functionality to general systems/problems
 */
namespace FEDD {
template<class SC_, class LO_, class GO_, class NO_>
class Preconditioner;
template<class SC_, class LO_, class GO_, class NO_>
class NonLinearProblem;
 
template <class SC = default_sc, class LO = default_lo, class GO = default_go, class NO = default_no>
class TimeProblem: public Thyra::StateFuncModelEvaluatorBase<SC>  {
 
public:
 
    typedef Problem<SC,LO,GO,NO> Problem_Type;
    typedef Teuchos::RCP<Problem_Type> ProblemPtr_Type;
    typedef typename Problem_Type::CommConstPtr_Type CommConstPtr_Type;
 
    typedef typename Problem_Type::Map_Type Map_Type;
    typedef typename Problem_Type::MapPtr_Type MapPtr_Type;
    typedef typename Problem_Type::MapConstPtr_Type MapConstPtr_Type;
 
    typedef typename Problem_Type::Matrix_Type Matrix_Type;
    typedef typename Problem_Type::MatrixPtr_Type MatrixPtr_Type;
    typedef Teuchos::RCP<const Matrix_Type> MatrixConstPtr_Type;
 
    typedef typename Problem_Type::BlockMatrix_Type BlockMatrix_Type;
    typedef typename Problem_Type::BlockMatrixPtr_Type BlockMatrixPtr_Type;
    typedef typename Problem_Type::BlockMatrixConstPtr_Type BlockMatrixConstPtr_Type;
    typedef Teuchos::Array<BlockMatrixPtr_Type> BlockMatrixPtrArray_Type;
 
    typedef typename Problem_Type::MultiVector_Type MultiVector_Type;
    typedef typename Problem_Type::MultiVectorPtr_Type MultiVectorPtr_Type;
 
    typedef typename Problem_Type::BlockMultiVector_Type BlockMultiVector_Type;
    typedef typename Problem_Type::BlockMultiVectorPtr_Type BlockMultiVectorPtr_Type;
    typedef typename Problem_Type::BlockMultiVectorConstPtr_Type BlockMultiVectorConstPtr_Type;
    typedef Teuchos::Array<BlockMultiVectorPtr_Type> BlockMultiVectorPtrArray_Type;
 
    typedef typename Problem_Type::DomainConstPtr_Type DomainConstPtr_Type;
 
    typedef typename Problem_Type::FEFac_Type FEFac_Type;
    typedef Teuchos::RCP<FEFac_Type> FEFacPtr_Type;
    typedef Teuchos::RCP<const FEFac_Type> FEFacConstPtr_Type;
    typedef typename Problem_Type::BCConstPtr_Type BCConstPtr_Type;
 
    typedef NonLinearProblem<SC,LO,GO,NO> NonLinProb_Type;
    typedef Teuchos::RCP<NonLinProb_Type> NonLinProbPtr_Type;
 
    typedef typename Problem_Type::Preconditioner_Type Preconditioner_Type;
    typedef typename Problem_Type::PreconditionerPtr_Type PreconditionerPtr_Type;
 
    typedef typename Problem_Type::LinSolverBuilderPtr_Type LinSolverBuilderPtr_Type;
 
    using TpetraTypes = TpetraTypedefs<SC,LO,GO,NO>;
    using TpetraMatrix_Type = typename TpetraTypes::TpetraMatrix_Type;
    using TpetraOp_Type = typename TpetraTypes::TpetraOp_Type;
 
    using ThyraTypes = ThyraTypedefs<SC>;
    using ThyraVecSpace_Type = typename ThyraTypes::ThyraVecSpace_Type;
    using ThyraVec_Type = typename ThyraTypes::ThyraVec_Type;
    typedef Thyra::BlockedLinearOpBase<SC> ThyraBlockOp_Type;
 
    using ThyraOp_Type = typename ThyraTypes::ThyraOp_Type;    
        
    TimeProblem(Problem_Type& problem, CommConstPtr_Type comm);
    
    void setTimeDef( SmallMatrix<int>& def );
    
    void assemble(std::string type="") const;
    
    virtual void reAssembleAndFill( BlockMatrixPtr_Type bMat, std::string type="FixedPoint" );
 
    void updateRhs();
 
    void updateMultistepRhs(vec_dbl_Type& coeff, int nmbToUse);
 
    // Mit Massematrix aus vorherigen Zeitschritten
    void updateMultistepRhsFSI(vec_dbl_Type& coeff, int nmbToUse);
 
    // Stelle die rechte Seite des zeitdiskretisierten Systems auf (ohne f_{n+1}).
    // Bei Newmark lautet dies:
    // M*[\frac{1}{dt^2*beta}*u_n + \frac{1}{dt*beta}*u'_n + \frac{0.5 - beta}{beta}*u''_n],
    // wobei u' = v (velocity) und u'' = w (acceleration).
    void updateNewmarkRhs(double dt, double beta, double gamma, vec_dbl_Type coeff);
 
    void combineSystems() const;
 
    void initializeCombinedSystems() const;
 
    void assembleMassSystem( ) const;
 
    void setTimeParameters(SmallMatrix<double> &daeParameters, SmallMatrix<double> &timeParameters);
 
    int solveAndUpdate( const std::string& criterion, double& criterionValue );
 
    int solveUpdate();
 
    int update();
 
    int solve( BlockMultiVectorPtr_Type rhs = Teuchos::null );
    
    double calculateResidualNorm();
 
    void calculateNonLinResidualVec(std::string type="standard", double time=0.) const;
 
    bool getVerbose();
 
    void addBoundaries(BCConstPtr_Type bcFactory);
 
    void setBoundaries(double time=.0);
 
    void setBoundariesRHS(double time=.0);
 
    void setBoundariesSystem() const;
 
//    void assembleExternal( std::string type ) const;    
 
    BlockMultiVectorPtr_Type getRhs();
 
    BlockMultiVectorPtr_Type getRhs() const;
    
    BlockMultiVectorPtr_Type getSolution();
 
    BlockMultiVectorConstPtr_Type getSolutionConst() const;
    
    BlockMultiVectorPtr_Type getResidual();
 
    BlockMultiVectorConstPtr_Type getResidualConst() const;
    
    DomainConstPtr_Type getDomain(int i) const;
 
    std::string getFEType(int i);
 
    std::string getVariableName(int i);
 
    int getDofsPerNode(int i);
 
    BlockMatrixPtr_Type getSystem();
 
    BlockMatrixPtr_Type getSystemCombined();
 
    BlockMatrixPtr_Type getSystemCombined() const;
 
    ProblemPtr_Type getUnderlyingProblem();
 
    void updateSolutionPreviousStep();
 
    void updateSolutionMultiPreviousStep(int nmbSteps);
 
    void updateSystemMassMultiPreviousStep(int nmbSteps);
 
    // Verschiebung (u), Geschwindigkeit (u' = v) und Beschleunigung (u'' = w)
    // mit Hilfe der Newmark-Vorschrift aktualisieren.
    // BEACHTE: Wir haben u als primaere Variable (die Variable nach der das GLS geloest wird),
    // anstatt klassischerweise u''. Fuer die Umformungen siehe MA.
    void updateSolutionNewmarkPreviousStep(double dt, double beta, double gamma);
 
    BlockMultiVectorPtr_Type getSolutionPreviousTimestep();
 
    BlockMultiVectorPtrArray_Type getSolutionAllPreviousTimestep();
 
    BlockMatrixPtr_Type getMassSystem();
 
    ParameterListPtr_Type getParameterList();
 
    void assembleSourceTerm( double time=0. );
 
    BlockMultiVectorPtr_Type getSourceTerm( );
 
    bool hasSourceTerm() const;
 
    CommConstPtr_Type getComm() const{return  comm_;}
 
    LinSolverBuilderPtr_Type getLinearSolverBuilder() const;
 
    void getValuesOfInterest( vec_dbl_Type& values );
 
    void computeValuesOfInterestAndExport();
 
    void updateTime( double time ){ time_ = time;}
 
    void addToRhs(BlockMultiVectorPtr_Type x);
 
    ProblemPtr_Type problem_;
    CommConstPtr_Type comm_;
 
    mutable BlockMatrixPtr_Type systemCombined_;
    mutable BlockMatrixPtr_Type systemMass_;
    mutable SmallMatrix<double> timeParameters_;
    SmallMatrix<int>        timeStepDef_;
    SmallMatrix<double>     massParameters_;
 
    FEFacPtr_Type feFactory_;
//    bool                  boolLinearProblem_;
    int                     dimension_;
    bool                    verbose_;
    ParameterListPtr_Type   parameterList_;
    mutable BCConstPtr_Type bcFactory_;
    bool                    massBCSet_;
    BlockMultiVectorPtrArray_Type solutionPreviousTimesteps_;
//    std::vector<MultiVector_ptr_Type>    solutionPreviousTimesteps_;
 
    // ###########################
    // Fuer das Newmark-Verfahren
    // ###########################
    BlockMultiVectorPtrArray_Type velocityPreviousTimesteps_; // entspricht u' bzw. v
    BlockMultiVectorPtrArray_Type accelerationPreviousTimesteps_; // entspricht u'' bzw. w
 
    // ###########################
    // Fuer FSI
    // ###########################
    BlockMatrixPtrArray_Type systemMassPreviousTimeSteps_;
 
    double time_;
protected:
#define TIMEPROBLEM_TIMER
#ifdef TIMEPROBLEM_TIMER
    TimePtr_Type TimeSolveTimer_;
#endif
    
    // Functions used for NOX.
public:
    
    virtual Thyra::ModelEvaluatorBase::InArgs<SC> getNominalValues() const;
    
    virtual Teuchos::RCP<const ::Thyra::VectorSpaceBase<SC> > get_x_space() const;
    
    virtual Teuchos::RCP<const ::Thyra::VectorSpaceBase<SC> > get_f_space() const;
    
    virtual ::Thyra::ModelEvaluatorBase::InArgs<SC> createInArgs() const;
    
    virtual ::Thyra::ModelEvaluatorBase::OutArgs<SC> createOutArgsImpl() const;
    
//    void initNOXParameters();
//    
//    void initVectorSpaces( );
//    
//    void initVectorSpacesMonolithic( );
//    
//    void initVectorSpacesBlock( );
    
    Teuchos::RCP< Thyra::LinearOpBase<SC> > create_W_op() ;
 
    Teuchos::RCP< Thyra::LinearOpBase<SC> > create_W_op_Monolithic() ;
 
    Teuchos::RCP< Thyra::LinearOpBase<SC> > create_W_op_Block() ;
 
    Teuchos::RCP<Thyra::PreconditionerBase<SC> > create_W_prec() ;
    
    std::string description() const; //reimplement description function and use description of underlying nonLinearProblem
private:
    
    virtual void evalModelImpl(
                               const ::Thyra::ModelEvaluatorBase::InArgs<SC> &inArgs,
                               const ::Thyra::ModelEvaluatorBase::OutArgs<SC> &outArgs
                               ) const;
    
    void evalModelImplMonolithic(const ::Thyra::ModelEvaluatorBase::InArgs<SC> &inArgs,
                                 const ::Thyra::ModelEvaluatorBase::OutArgs<SC> &outArgs) const;
    
    void evalModelImplBlock(const ::Thyra::ModelEvaluatorBase::InArgs<SC> &inArgs,
                            const ::Thyra::ModelEvaluatorBase::OutArgs<SC> &outArgs) const;
    
    mutable bool precInitOnly_; //Help variable to signal that we constructed the initial preconditioner for NOX with the Stokes system and we do not need to compute it if fill_W_prec is called for the first time. However, the preconditioner is only correct if a Stokes system is solved in the first nonlinear iteration. This only affects the block preconditioners of Teko
 
};
}
 
#endif