Panzer_ScalarToVector_decl.hpp

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#ifndef PANZER_EVALUATOR_SCALAR_TO_VECTOR_DECL_HPP
#define PANZER_EVALUATOR_SCALAR_TO_VECTOR_DECL_HPP

#include <vector>
#include "Phalanx_Evaluator_Macros.hpp"
#include "Phalanx_MDField.hpp"
#include "Panzer_Evaluator_Macros.hpp"

namespace panzer {
    
template<typename EvalT, typename Traits>
class ScalarToVector
  :
  public panzer::EvaluatorWithBaseImpl<Traits>,
  public PHX::EvaluatorDerived<EvalT, Traits>
{
  public:

    ScalarToVector(
      const Teuchos::ParameterList& p);

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

    void
    evaluateFields(
      typename Traits::EvalData d);

  private:

    using ScalarT = typename EvalT::ScalarT;
  std::vector< PHX::MDField<const ScalarT,Cell,Point> > scalar_fields;
  PHX::MDField<ScalarT,Cell,Point,Dim> vector_field;

protected:
  typedef Kokkos::View<const ScalarT**,typename PHX::DevLayout<ScalarT>::type,PHX::Device> KokkosScalarFields_t;
  Kokkos::View<KokkosScalarFields_t*> internal_scalar_fields;
public:
  KOKKOS_INLINE_FUNCTION
  void operator()(const size_t &cell) const;

  ScalarToVector(const std::vector<PHX::Tag<ScalarT>> & input,
                 const PHX::FieldTag & output);

}; // end of class ScalarToVector


}

#endif