DUNE-FEM (unstable)

localrestrictprolong.hh
1#ifndef DUNE_FEM_SPACE_DISCONTINUOUSGALERKIN_LOCALRESTRICTPROLONG_HH_
2#define DUNE_FEM_SPACE_DISCONTINUOUSGALERKIN_LOCALRESTRICTPROLONG_HH_
3
4// dune-fem includes
5#include <dune/fem/function/localfunction/temporary.hh>
6#include <dune/fem/quadrature/cachingquadrature.hh>
7#include <dune/fem/space/common/adaptationmanager.hh>
8#include <dune/fem/space/common/localrestrictprolong.hh>
9
10// local includes
11#include "declaration.hh"
12#include "localdgmassmatrix.hh"
13
14
15namespace Dune
16{
17
18 namespace Fem
19 {
20
26 // DiscontinuousGalerkinLocalRestrictProlong
27 // -----------------------------------------
28
29 template< class DiscreteFunctionSpace, bool applyInverse >
30 class DiscontinuousGalerkinLocalRestrictProlong
31 {
32 typedef DiscontinuousGalerkinLocalRestrictProlong< DiscreteFunctionSpace, applyInverse > ThisType;
33
34 public:
35 typedef DiscreteFunctionSpace DiscreteFunctionSpaceType;
36
37 typedef typename DiscreteFunctionSpaceType::DomainFieldType DomainFieldType;
38 typedef typename DiscreteFunctionSpaceType::RangeFieldType RangeFieldType;
39 typedef typename DiscreteFunctionSpaceType::RangeType RangeType;
40
41 typedef typename DiscreteFunctionSpaceType::GridPartType GridPartType;
42
43 typedef CachingQuadrature< GridPartType, 0 > QuadratureType;
44
46
47 DiscontinuousGalerkinLocalRestrictProlong ( const DiscreteFunctionSpaceType& space )
48 : localMassMatrix_( space, space.order() * 2 ),
49 weight_( -1 ),
50 temp_( space )
51 {}
52
53 void setFatherChildWeight ( const DomainFieldType &weight )
54 {
55 weight_ = weight;
56 }
57
59 template< class LFFather, class LFSon, class LocalGeometry >
60 void restrictLocal ( LFFather &lfFather, const LFSon &lfSon,
61 const LocalGeometry &geometryInFather, bool initialize ) const
62 {
63 typedef ConstantLocalRestrictProlong< DiscreteFunctionSpaceType > ConstantLocalRestrictProlongType;
64 const DomainFieldType weight = (weight_ < DomainFieldType( 0 ) ? ConstantLocalRestrictProlongType::calcWeight( lfFather.entity(), lfSon.entity() ) : weight_);
65
66 assert( weight > 0.0 );
67
68 if( initialize )
69 lfFather.clear();
70
71 if( applyInverse )
72 {
73 temp_.init( lfFather.entity() );
74 temp_.clear();
75 }
76
77 typedef typename LFSon :: EntityType EntityType ;
78 typedef typename EntityType :: Geometry Geometry;
79 const EntityType& sonEntity = lfSon.entity();
80 const Geometry sonGeo = sonEntity.geometry();
81
82 QuadratureType quad( sonEntity, 2*lfFather.order()+1 );
83 const int nop = quad.nop();
84 for( int qp = 0; qp < nop; ++qp )
85 {
86 RangeFieldType quadWeight = quad.weight( qp );
87
88 // in case of non-orthonormal basis we have to
89 // apply the integration element and the
90 // inverse mass matrix later
91 if( applyInverse )
92 {
93 quadWeight *= sonGeo.integrationElement( quad.point(qp) );
94 }
95 else
96 quadWeight *= weight ;
97
98 RangeType value;
99 lfSon.evaluate( quad[ qp ], value );
100 value *= quadWeight;
101
102 if( applyInverse )
103 temp_.axpy( geometryInFather.global( quad.point( qp ) ), value );
104 else
105 lfFather.axpy( geometryInFather.global( quad.point( qp ) ), value );
106 }
107
108 if( applyInverse )
109 {
110 localMassMatrix_.applyInverse( temp_ );
111 lfFather += temp_;
112 }
113 }
114 template< class LFFather >
115 void restrictFinalize ( LFFather &lfFather ) const
116 {}
117
118 template< class LFFather, class LFSon, class LocalGeometry >
119 void prolongLocal ( const LFFather &lfFather, LFSon &lfSon,
120 const LocalGeometry &geometryInFather, bool initialize ) const
121 {
122 lfSon.clear();
123
124 typedef typename LFSon :: EntityType EntityType ;
125 typedef typename EntityType :: Geometry Geometry;
126 const EntityType& sonEntity = lfSon.entity();
127 const Geometry sonGeo = sonEntity.geometry();
128
129 QuadratureType quad( sonEntity, 2*lfSon.order()+1 );
130 const int nop = quad.nop();
131 for( int qp = 0; qp < nop; ++qp )
132 {
133 RangeFieldType quadWeight = quad.weight( qp );
134
135 // in case of non-orthonormal basis we have to
136 // apply the integration element and the
137 // inverse mass matrix later
138 if( applyInverse )
139 {
140 quadWeight *= sonGeo.integrationElement( quad.point(qp) );
141 }
142
143 RangeType value;
144 lfFather.evaluate( geometryInFather.global( quad.point( qp ) ), value );
145 value *= quadWeight;
146 lfSon.axpy( quad[ qp ], value );
147 }
148
149 if( applyInverse )
150 {
151 localMassMatrix_.applyInverse( sonEntity, lfSon );
152 }
153 }
154
155 bool needCommunication () const { return true; }
156
157 protected:
158 LocalMassMatrixType localMassMatrix_;
159 DomainFieldType weight_;
160 mutable TemporaryLocalFunction< DiscreteFunctionSpace > temp_;
161 };
162
163
164
165 // DefaultLocalRestrictProlong for DiscontinuousGalerkinSpace
166 // ----------------------------------------------------------
167
168 template< class FunctionSpaceImp, class GridPartImp, int polOrd, class StorageImp >
169 class DefaultLocalRestrictProlong< DiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > >
170 : public DiscontinuousGalerkinLocalRestrictProlong< DiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, false >
171 {
172 public:
173 typedef DiscontinuousGalerkinLocalRestrictProlong< DiscontinuousGalerkinSpace<
174 FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, false > BaseType;
175 DefaultLocalRestrictProlong ( const DiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > & space )
176 : BaseType( space )
177 {}
178 };
179
180 template< class FunctionSpaceImp, class GridPartImp, class StorageImp >
181 class DefaultLocalRestrictProlong< DiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
182 : public ConstantLocalRestrictProlong< DiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
183 {
184 public:
185 DefaultLocalRestrictProlong ( const DiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > & )
186 {}
187 };
188
189
190
191 // DefaultLocalRestrictProlong for LegendreDiscontinuousGalerkinSpace
192 // ------------------------------------------------------------------
193
194 template< class FunctionSpaceImp, class GridPartImp, int polOrd, class StorageImp >
195 class DefaultLocalRestrictProlong< LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > >
196 : public DiscontinuousGalerkinLocalRestrictProlong< LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, false >
197 {
198 public:
199 typedef DiscontinuousGalerkinLocalRestrictProlong<
200 LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, false > BaseType;
201 DefaultLocalRestrictProlong ( const LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > & space )
202 : BaseType( space )
203 {}
204 };
205
206 template< class FunctionSpaceImp, class GridPartImp, class StorageImp >
207 class DefaultLocalRestrictProlong< LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
208 : public ConstantLocalRestrictProlong< LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
209 {
210 public:
211 DefaultLocalRestrictProlong ( const LegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > & )
212 {}
213 };
214
215
216
217 // DefaultLocalRestrictProlong for HierarchicLegendreDiscontinuousGalerkinSpace
218 // ----------------------------------------------------------------------------
219
220 template< class FunctionSpaceImp, class GridPartImp, int polOrd, class StorageImp >
221 class DefaultLocalRestrictProlong< HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > >
222 : public DiscontinuousGalerkinLocalRestrictProlong< HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, false >
223 {
224 public:
225 typedef DiscontinuousGalerkinLocalRestrictProlong<
226 HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, false > BaseType;
227 DefaultLocalRestrictProlong ( const HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > & space )
228 : BaseType( space )
229 {}
230 };
231
232 template< class FunctionSpaceImp, class GridPartImp, class StorageImp >
233 class DefaultLocalRestrictProlong< HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
234 : public ConstantLocalRestrictProlong< HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
235 {
236 public:
237 DefaultLocalRestrictProlong ( const HierarchicLegendreDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > & )
238 {}
239 };
240
241
242
243 // DefaultLocalRestrictProlong for LagrangeDiscontinuousGalerkinSpace
244 // ------------------------------------------------------------------
245
246 template< class FunctionSpaceImp, class GridPartImp, int polOrd, class StorageImp >
247 class DefaultLocalRestrictProlong< LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > >
248 : public DiscontinuousGalerkinLocalRestrictProlong< LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, true >
249 {
250 public:
251 typedef DiscontinuousGalerkinLocalRestrictProlong< LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp >, true > BaseType ;
252 DefaultLocalRestrictProlong ( const LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, polOrd, StorageImp > & space )
253 : BaseType( space )
254 {}
255 };
256
257 template< class FunctionSpaceImp, class GridPartImp, class StorageImp >
258 class DefaultLocalRestrictProlong< LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
259 : public ConstantLocalRestrictProlong< LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > >
260 {
261 public:
262 DefaultLocalRestrictProlong ( const LagrangeDiscontinuousGalerkinSpace< FunctionSpaceImp, GridPartImp, 0, StorageImp > & )
263 {}
264 };
265
267
268 } // namespace Fem
269
270} // namespace Dune
271
272#endif // #ifndef DUNE_FEM_SPACE_DISCONTINUOUSGALERKIN_LOCALRESTRICTPROLONG_HH_
discrete function space
Dune namespace.
Definition: alignedallocator.hh:13
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