Panzer_ScalarToVector_impl.hpp

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#ifndef PANZER_SCALAR_TO_VECTOR_IMPL_HPP
#define PANZER_SCALAR_TO_VECTOR_IMPL_HPP

#include <string>

namespace panzer {

//**********************************************************************
template<typename EvalT, typename Traits>
ScalarToVector<EvalT, Traits>::
ScalarToVector(
  const Teuchos::ParameterList& p)
{
  Teuchos::RCP<PHX::DataLayout> scalar_dl = 
    p.get< Teuchos::RCP<PHX::DataLayout> >("Data Layout Scalar");

  Teuchos::RCP<PHX::DataLayout> vector_dl = 
    p.get< Teuchos::RCP<PHX::DataLayout> >("Data Layout Vector");

  const std::vector<std::string>& scalar_names = 
    *(p.get< Teuchos::RCP<const std::vector<std::string> > >("Scalar Names"));

  scalar_fields.resize(scalar_names.size());
  for (std::size_t i=0; i < scalar_names.size(); ++i)
    scalar_fields[i] = 
      PHX::MDField<const ScalarT,Cell,Point>(scalar_names[i], scalar_dl);

  vector_field = 
    PHX::MDField<ScalarT,Cell,Point,Dim>(p.get<std::string>
           ("Vector Name"), vector_dl);

  for (std::size_t i=0; i < scalar_fields.size(); ++i)
    this->addDependentField(scalar_fields[i]);
  
  this->addEvaluatedField(vector_field);
  
  std::string n = "ScalarToVector: " + vector_field.fieldTag().name();
  this->setName(n);
}

//**********************************************************************

template<typename EvalT, typename Traits>       \
ScalarToVector<EvalT,Traits>::
ScalarToVector(const std::vector<PHX::Tag<ScalarT>> & input,
               const PHX::FieldTag & output)
{
  // setup the fields
  vector_field = output;

  scalar_fields.resize(input.size());
  for(std::size_t i=0;i<input.size();i++) 
    scalar_fields[i] = input[i];

  // add dependent/evaluate fields
  this->addEvaluatedField(vector_field);
  
  for (std::size_t i=0; i < scalar_fields.size(); ++i)
    this->addDependentField(scalar_fields[i]);
  
  // name array
  std::string n = "ScalarToVector: " + vector_field.fieldTag().name();
  this->setName(n);
}

//**********************************************************************
template<typename EvalT, typename Traits>
void
ScalarToVector<EvalT, Traits>::
postRegistrationSetup(
  typename Traits::SetupData  /* worksets */,
  PHX::FieldManager<Traits>&  fm)
{
  internal_scalar_fields = Kokkos::View<KokkosScalarFields_t*>("ScalarToVector::internal_scalar_fields", scalar_fields.size());
  for (std::size_t i=0; i < scalar_fields.size(); ++i) {
    this->utils.setFieldData(scalar_fields[i],fm);
    internal_scalar_fields(i) = scalar_fields[i].get_static_view();
  }

  this->utils.setFieldData(vector_field,fm);
}

//**********************************************************************

template<typename EvalT, typename TRAITS>
KOKKOS_INLINE_FUNCTION
void ScalarToVector<EvalT, TRAITS>::operator()(const size_t &cell) const {
  typedef typename PHX::MDField<ScalarT,Cell,Point>::size_type size_type;
  // Loop over points
  for (size_type pt = 0; pt < vector_field.extent(1); ++pt) {
    // Loop over scalars
    for (std::size_t sc = 0; sc < internal_scalar_fields.extent(0); ++sc) {
      vector_field(cell,pt,sc) = internal_scalar_fields(sc)(cell,pt);

    }
  }

}
//**********************************************************************
template<typename EvalT, typename Traits>
void
ScalarToVector<EvalT, Traits>::
evaluateFields(
  typename Traits::EvalData workset)
{ 

  // Loop over cells
  Kokkos::parallel_for (workset.num_cells, (*this));
}

//**********************************************************************

}

#endif