/usr/include/trilinos/LOCA_MultiContinuation

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#ifndef LOCA_MULTICONTINUATION_COMPOSITECONSTRAINT_H
#define LOCA_MULTICONTINUATION_COMPOSITECONSTRAINT_H

#include "LOCA_MultiContinuation_ConstraintInterface.H" // base class
#include <vector>

// forward declarations
namespace LOCA {
  class GlobalData;
}

namespace LOCA {

  namespace MultiContinuation {

    /*!
     * \brief Implementation of
     * LOCA::MultiContinuation::ConstraintInterface for composite
     * constraints, i.e., a constraint comprised of multiple, separate
     * constraints.
     */
    class CompositeConstraint :
      public virtual LOCA::MultiContinuation::ConstraintInterface {

    public:

      //! Constructor
      CompositeConstraint(
    const Teuchos::RCP<LOCA::GlobalData>& global_data,
    const std::vector< Teuchos::RCP<
    LOCA::MultiContinuation::ConstraintInterface> >& constraintObjects);

      //! Copy constructor
      CompositeConstraint(const CompositeConstraint& source,
              NOX::CopyType type = NOX::DeepCopy);

      //! Destructor
      ~CompositeConstraint();

      /*!
       * @name Implementation of LOCA::MultiContinuation::ConstraintInterface
       * virtual methods
       */
      //@{

      //! Copy
      virtual void copy(const ConstraintInterface& source);

      //! Cloning function
      virtual
      Teuchos::RCP<LOCA::MultiContinuation::ConstraintInterface>
      clone(NOX::CopyType type = NOX::DeepCopy) const;

      //! Return number of constraints
      virtual int numConstraints() const;

      //! Set the solution vector to y.
      virtual void setX(const NOX::Abstract::Vector& y);

      //! Sets parameter indexed by paramID
      virtual void setParam(int paramID, double val);

      //! Sets parameters indexed by paramIDs
      virtual void setParams(
             const std::vector<int>& paramIDs,
             const NOX::Abstract::MultiVector::DenseMatrix& vals);

      //! Compute continuation constraint equations
      virtual NOX::Abstract::Group::ReturnType
      computeConstraints();

      //! Compute derivative of constraints w.r.t. solution vector x
      virtual NOX::Abstract::Group::ReturnType
      computeDX();

      //! Compute derivative of constraints w.r.t. supplied parameters.
      /*!
       * The first column of \c dgdp should be filled with the constraint
       * residuals \f$g\f$ if \c isValidG is \c false.  If \c isValidG is
       * \c true, then the \c dgdp contains \f$g\f$ on input.
       */
      virtual NOX::Abstract::Group::ReturnType
      computeDP(const std::vector<int>& paramIDs,
        NOX::Abstract::MultiVector::DenseMatrix& dgdp,
        bool isValidG);

      //! Return \c true if constraint residuals are valid
      virtual bool isConstraints() const;

      //! Return \c true if derivatives of constraints w.r.t. x are valid
      virtual bool isDX() const;

      //! Return constraint residuals
      virtual const NOX::Abstract::MultiVector::DenseMatrix&
      getConstraints() const;

      //! Compute result_p = alpha * dg/dx * input_x
      /*!
       * Note that if there are n constraints and input_x has m columns,
       * result_p should be a n by m matrix and is equivalent to
       * \code
       *    input_x.multiply(alpha, dgdx, result_p).
       * \endcode
       */
      virtual NOX::Abstract::Group::ReturnType
      multiplyDX(double alpha,
          const NOX::Abstract::MultiVector& input_x,
          NOX::Abstract::MultiVector::DenseMatrix& result_p) const;

      //! Compute result_x = alpha * dg/dx^T * op(b) + beta * result_x
      /*!
       * Note that this should be equivalent to
       * \code
       *    result_x.update(transb, alpha, dgdx, b, beta);
       * \endcode
       */
      virtual NOX::Abstract::Group::ReturnType
      addDX(Teuchos::ETransp transb,
        double alpha,
        const NOX::Abstract::MultiVector::DenseMatrix& b,
        double beta,
        NOX::Abstract::MultiVector& result_x) const;

      /*!
       * \brief Return \c true if solution component of constraint
       * derivatives is zero
       */
      virtual bool isDXZero() const;

      //! Perform any preprocessing before a continuation step starts.
      /*!
       * The \c stepStatus argument indicates whether the previous step was
       * successful.  The default implementation is empty.
       */
      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 default implementation is empty.
       */
      virtual void
      postProcessContinuationStep(
                  LOCA::Abstract::Iterator::StepStatus stepStatus);

      //@}

    private:

      //! Prohibit generation and use of operator=()
      CompositeConstraint& operator=(const CompositeConstraint& source);

    protected:

      //! Default constructor.  Used by derived classes
      CompositeConstraint();

      //! Initialize object when using default constructor
     virtual void init(
    const Teuchos::RCP<LOCA::GlobalData>& global_data,
    const std::vector< Teuchos::RCP<
    LOCA::MultiContinuation::ConstraintInterface> >& constraintObjects);

    protected:

      //! LOCA global data object
      Teuchos::RCP<LOCA::GlobalData> globalData;

      //! Number of constraint objects
      int numConstraintObjects;

      //! Array of constraint pointers
      std::vector< Teuchos::RCP<
    LOCA::MultiContinuation::ConstraintInterface> > constraintPtrs;

      //! Indices of each sub-constraint in the composite constraint
      std::vector< std::vector<int> > indices;

      //! Total number of constraints
      int totalNumConstraints;

      //! Constraint values
      NOX::Abstract::MultiVector::DenseMatrix constraints;

      //! Flag indicating whether constraints are valid
      bool isValidConstraints;

      //! Flag indicating whether dg/dx is valid
      bool isValidDX;

    }; // Class CompositeConstraint

  } // namespace MultiContinuation

} // namespace LOCA

#endif // LOCA_MULTICONTINUATION_COMPOSITECONSTRAINT_H
libtrilinos-nox-dev 12.4.2-2 / usr / include / trilinos / LOCA_MultiContinuation_CompositeConstraint.H
