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Panzer_ScalarToVector_impl.hpp
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4// Panzer: A partial differential equation assembly
5// engine for strongly coupled complex multiphysics systems
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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
48namespace panzer {
49
50//**********************************************************************
51template<typename EvalT, typename Traits>
54 const Teuchos::ParameterList& p)
55{
56 Teuchos::RCP<PHX::DataLayout> scalar_dl =
57 p.get< Teuchos::RCP<PHX::DataLayout> >("Data Layout Scalar");
58
59 Teuchos::RCP<PHX::DataLayout> vector_dl =
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
85template<typename EvalT, typename Traits> \
86ScalarToVector<EvalT,Traits>::
87ScalarToVector(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//**********************************************************************
109template<typename EvalT, typename Traits>
110void
113 typename Traits::SetupData /* worksets */,
115{
116 // Convert std::vector to PHX::View for use on device
117 internal_scalar_fields = PHX::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//**********************************************************************
123template<typename EvalT, typename Traits>
124void
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
ScalarToVector(const Teuchos::ParameterList &p)
void evaluateFields(typename Traits::EvalData d)
void postRegistrationSetup(typename Traits::SetupData d, PHX::FieldManager< Traits > &fm)
int num_cells
DEPRECATED - use: numCells()