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Panzer_GatherNormals_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_GATHER_NORMALS_IMPL_HPP
44#define PANZER_GATHER_NORMALS_IMPL_HPP
45
46#include "Teuchos_Assert.hpp"
47#include "Phalanx_DataLayout.hpp"
48
49#include "Panzer_PureBasis.hpp"
50#include "Kokkos_ViewFactory.hpp"
51
52#include "Intrepid2_Kernels.hpp"
53#include "Intrepid2_OrientationTools.hpp"
54
55#include "Teuchos_FancyOStream.hpp"
56
57template<typename EvalT,typename Traits>
60 const Teuchos::ParameterList& p)
61{
62 dof_name = (p.get< std::string >("DOF Name"));
63
64 if(p.isType< Teuchos::RCP<PureBasis> >("Basis"))
65 basis = p.get< Teuchos::RCP<PureBasis> >("Basis");
66 else
67 basis = p.get< Teuchos::RCP<const PureBasis> >("Basis");
68
69 pointRule = p.get<Teuchos::RCP<const PointRule> >("Point Rule");
70
71 Teuchos::RCP<PHX::DataLayout> basis_layout = basis->functional;
72 Teuchos::RCP<PHX::DataLayout> vector_layout_vector = basis->functional_grad;
73
74 // some sanity checks
75 TEUCHOS_ASSERT(basis->isVectorBasis());
76
77 // setup the orientation field
78 std::string orientationFieldName = basis->name() + " Orientation";
79 // setup all fields to be evaluated and constructed
80 pointValues = panzer::PointValues2<double> (pointRule->getName()+"_",false);
81 pointValues.setupArrays(pointRule);
82
83 // the field manager will allocate all of these field
84 constJac_ = pointValues.jac;
85 this->addDependentField(constJac_);
86
87 gatherFieldNormals = PHX::MDField<ScalarT,Cell,NODE,Dim>(dof_name+"_Normals",vector_layout_vector);
88 this->addEvaluatedField(gatherFieldNormals);
89
90 this->setName("Gather Normals");
91}
92
93// **********************************************************************
94template<typename EvalT,typename Traits>
98{
99 orientations = d.orientations_;
100 this->utils.setFieldData(pointValues.jac,fm);
101 faceNormal = Kokkos::createDynRankView(gatherFieldNormals.get_static_view(),
102 "faceNormal",
103 gatherFieldNormals.extent(0),
104 gatherFieldNormals.extent(1),
105 gatherFieldNormals.extent(2));
106
107 const shards::CellTopology & parentCell = *basis->getCellTopology();
108 int sideDim = parentCell.getDimension()-1;
109 sideParam = Intrepid2::RefSubcellParametrization<PHX::Device>::get(sideDim, parentCell.getKey());
110}
111
112// **********************************************************************
113template<typename EvalT,typename Traits>
115evaluateFields(typename Traits::EvalData workset)
116{
117
118 if(workset.num_cells<=0)
119 return;
120
121 const shards::CellTopology & parentCell = *basis->getCellTopology();
122 int cellDim = parentCell.getDimension();
123 int sideDim = parentCell.getDimension()-1;
124 int numFaces = gatherFieldNormals.extent(1);
125
126 // allocate space that is sized correctly for AD
127 auto refEdges = Kokkos::createDynRankView(gatherFieldNormals.get_static_view(),"ref_edges", sideDim, cellDim);
128 auto phyEdges = Kokkos::createDynRankView(gatherFieldNormals.get_static_view(),"phy_edges", sideDim, cellDim);
129
130 const WorksetDetails & details = workset;
131 const auto worksetJacobians = pointValues.jac.get_view();
132
133 // Loop over workset faces and edge points
134 //TODO parallel_for
135 for(index_t c=0;c<workset.num_cells;c++) {
136 int faceOrts[6] = {};
137 orientations->at(details.cell_local_ids[c]).getFaceOrientation(faceOrts, numFaces);
138
139 for(int pt = 0; pt < numFaces; pt++) {
140 auto ortEdgeTan_U = Kokkos::subview(refEdges, 0, Kokkos::ALL());
141 auto ortEdgeTan_V = Kokkos::subview(refEdges, 1, Kokkos::ALL());
142
143 Intrepid2::Impl::OrientationTools::getRefSubcellTangents(refEdges,
144 sideParam,
145 parentCell.getKey(sideDim,pt),
146 pt,
147 faceOrts[pt]);
148
149 auto phyEdgeTan_U = Kokkos::subview(phyEdges, 0, Kokkos::ALL());
150 auto phyEdgeTan_V = Kokkos::subview(phyEdges, 1, Kokkos::ALL());
151 auto J = Kokkos::subview(worksetJacobians, c, pt, Kokkos::ALL(), Kokkos::ALL());
152
153 Intrepid2::Kernels::Serial::matvec_product(phyEdgeTan_U, J, ortEdgeTan_U);
154 Intrepid2::Kernels::Serial::matvec_product(phyEdgeTan_V, J, ortEdgeTan_V);
155
156 // take the cross product of the two vectors
157 gatherFieldNormals(c,pt,0) = (phyEdgeTan_U(1)*phyEdgeTan_V(2) - phyEdgeTan_U(2)*phyEdgeTan_V(1));
158 gatherFieldNormals(c,pt,1) = (phyEdgeTan_U(2)*phyEdgeTan_V(0) - phyEdgeTan_U(0)*phyEdgeTan_V(2));
159 gatherFieldNormals(c,pt,2) = (phyEdgeTan_U(0)*phyEdgeTan_V(1) - phyEdgeTan_U(1)*phyEdgeTan_V(0));
160 }
161 }
162
163}
164
165#endif
void evaluateFields(typename Traits::EvalData d)
void postRegistrationSetup(typename Traits::SetupData d, PHX::FieldManager< Traits > &vm)
int num_cells
DEPRECATED - use: numCells()
Teuchos::RCP< const std::vector< Intrepid2::Orientation > > orientations_