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Panzer_ScalarToVector_impl.hpp
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42 
43 #ifndef PANZER_SCALAR_TO_VECTOR_IMPL_HPP
44 #define PANZER_SCALAR_TO_VECTOR_IMPL_HPP
45 
46 #include <string>
47 
48 namespace panzer {
49 
50 //**********************************************************************
51 template<typename EvalT, typename Traits>
54  const Teuchos::ParameterList& p)
55 {
57  p.get< Teuchos::RCP<PHX::DataLayout> >("Data Layout Scalar");
58 
60  p.get< Teuchos::RCP<PHX::DataLayout> >("Data Layout Vector");
61 
62  const std::vector<std::string>& scalar_names =
63  *(p.get< Teuchos::RCP<const std::vector<std::string> > >("Scalar Names"));
64 
65  scalar_fields.resize(scalar_names.size());
66  for (std::size_t i=0; i < scalar_names.size(); ++i)
67  scalar_fields[i] =
68  PHX::MDField<const ScalarT,Cell,Point>(scalar_names[i], scalar_dl);
69 
70  vector_field =
71  PHX::MDField<ScalarT,Cell,Point,Dim>(p.get<std::string>
72  ("Vector Name"), vector_dl);
73 
74  for (std::size_t i=0; i < scalar_fields.size(); ++i)
75  this->addDependentField(scalar_fields[i]);
76 
77  this->addEvaluatedField(vector_field);
78 
79  std::string n = "ScalarToVector: " + vector_field.fieldTag().name();
80  this->setName(n);
81 }
82 
83 //**********************************************************************
84 
85 template<typename EvalT, typename Traits> \
86 ScalarToVector<EvalT,Traits>::
87 ScalarToVector(const std::vector<PHX::Tag<ScalarT>> & input,
88  const PHX::FieldTag & output)
89 {
90  // setup the fields
91  vector_field = output;
92 
93  scalar_fields.resize(input.size());
94  for(std::size_t i=0;i<input.size();i++)
95  scalar_fields[i] = input[i];
96 
97  // add dependent/evaluate fields
98  this->addEvaluatedField(vector_field);
99 
100  for (std::size_t i=0; i < scalar_fields.size(); ++i)
101  this->addDependentField(scalar_fields[i]);
102 
103  // name array
104  std::string n = "ScalarToVector: " + vector_field.fieldTag().name();
105  this->setName(n);
106 }
107 
108 //**********************************************************************
109 template<typename EvalT, typename Traits>
110 void
113  typename Traits::SetupData /* worksets */,
115 {
116  // Convert std::vector to Kokkos::View for use on device
117  internal_scalar_fields = Kokkos::View<KokkosScalarFields_t*>("ScalarToVector::internal_scalar_fields", scalar_fields.size());
118  for (std::size_t i=0; i < scalar_fields.size(); ++i)
119  internal_scalar_fields(i) = scalar_fields[i].get_static_view();
120 }
121 
122 //**********************************************************************
123 template<typename EvalT, typename Traits>
124 void
127  typename Traits::EvalData workset)
128 {
129 
130  using Scalar = typename EvalT::ScalarT;
131 
132  // Iteration bounds
133  const int num_points = vector_field.extent_int(1);
134  const int num_vector_scalars = vector_field.extent_int(2);
135  const int num_scalars = std::min(internal_scalar_fields.extent_int(0),
136  num_vector_scalars);
137 
138  // Local copies to prevent passing (*this) to device code
139  auto vector = vector_field;
140  auto scalars = internal_scalar_fields;
141 
142  // Loop over cells, points, scalars
143  Kokkos::parallel_for (workset.num_cells,KOKKOS_LAMBDA (const int cell){
144  for (int pt = 0; pt < num_points; ++pt){
145 
146  // Copy over scalars
147  for (int sc = 0; sc < num_scalars; ++sc)
148  vector(cell,pt,sc) = scalars(sc)(cell,pt);
149 
150  // Missing scalars are filled with zero
151  for(int sc = num_scalars; sc < num_vector_scalars; ++sc)
152  vector(cell,pt,sc) = Scalar(0);
153  }
154  });
155 
156 }
157 
158 //**********************************************************************
159 
160 }
161 
162 #endif
T & get(const std::string &name, T def_value)
void postRegistrationSetup(typename Traits::SetupData d, PHX::FieldManager< Traits > &fm)
void evaluateFields(typename Traits::EvalData d)
ScalarToVector(const Teuchos::ParameterList &p)