PHAL_CahnHillRhoResid.hpp

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//*****************************************************************//
//    Albany 2.0:  Copyright 2012 Sandia Corporation               //
//    This Software is released under the BSD license detailed     //
//    in the file "license.txt" in the top-level Albany directory  //
//*****************************************************************//

#ifndef PHAL_CAHNHILLRHORESID_HPP
#define PHAL_CAHNHILLRHORESID_HPP

#include "Phalanx_ConfigDefs.hpp"
#include "Phalanx_Evaluator_WithBaseImpl.hpp"
#include "Phalanx_Evaluator_Derived.hpp"
#include "Phalanx_MDField.hpp"

namespace PHAL {

template<typename EvalT, typename Traits>
class CahnHillRhoResid : public PHX::EvaluatorWithBaseImpl<Traits>,
        public PHX::EvaluatorDerived<EvalT, Traits>  {

public:

  typedef typename EvalT::ScalarT ScalarT;

  CahnHillRhoResid(const Teuchos::ParameterList& p);

  void postRegistrationSetup(typename Traits::SetupData d,
                      PHX::FieldManager<Traits>& vm);

  void evaluateFields(typename Traits::EvalData d);

  ScalarT& getValue(const std::string &n);

private:

  typedef typename EvalT::MeshScalarT MeshScalarT;

  // Input:
  PHX::MDField<MeshScalarT,Cell,Node,QuadPoint> wBF;
  PHX::MDField<MeshScalarT,Cell,Node,QuadPoint,Dim> wGradBF;
  PHX::MDField<ScalarT,Cell,QuadPoint,Dim> rhoGrad;
  PHX::MDField<ScalarT,Cell,QuadPoint> chemTerm;
  PHX::MDField<ScalarT,Cell,QuadPoint> noiseTerm;


  // Output:
  PHX::MDField<ScalarT,Cell,Node> rhoResidual;

  Intrepid::FieldContainer<ScalarT> gamma_term;

  unsigned int numQPs, numDims, numNodes, worksetSize;

  ScalarT gamma;

  // Langevin noise present
  bool haveNoise;


};
}

#endif