DUNE-FEM (unstable)

managedvectorfunction.hh
1#ifndef DUNE_FEM_MANAGEDVECTORFUNCTION_HH
2#define DUNE_FEM_MANAGEDVECTORFUNCTION_HH
3
4#include <memory>
5#include <string>
6
7#include <dune/fem/function/vectorfunction/vectorfunction.hh>
8#include <dune/fem/space/common/dofmanager.hh>
9#include <dune/fem/space/mapper/nonblockmapper.hh>
10
11namespace Dune
12{
13
14 namespace Fem
15 {
16
17 // MemObject
18 // ---------
19
20 struct MemObject
21 {
22 template< class DofContainer, class DiscreteFunctionSpace >
23 DofContainer &allocate ( const DiscreteFunctionSpace &space )
24 {
25 typedef MutableBlockVector< DofContainer, DiscreteFunctionSpace::localBlockSize > DofVector;
26 auto result = allocateManagedDofStorage( space.gridPart().grid(), space.blockMapper(), static_cast< DofVector * >( nullptr ) );
27 interface_.reset( result.first );
28 return result.second->array();
29 }
30
31 void enableDofCompression ()
32 {
33 if( interface_ )
34 interface_->enableDofCompression();
35 }
36
37 private:
38 std::unique_ptr< DofStorageInterface > interface_;
39 };
40
41
42
43
44 // ManagedDiscreteFunction
45 // -----------------------
46
47 template< class DiscreteFunctionSpace,
48 class Vector >
49 class ManagedDiscreteFunction
50 < VectorDiscreteFunction< DiscreteFunctionSpace, Vector > >
51 : private MemObject,
52 public VectorDiscreteFunction< DiscreteFunctionSpace, Vector >
53 {
54 typedef VectorDiscreteFunction< DiscreteFunctionSpace, Vector > BaseType;
55 typedef ManagedDiscreteFunction< BaseType > ThisType;
56
57 public:
58 typedef ThisType DiscreteFunctionType;
59
60 typedef typename BaseType :: DiscreteFunctionSpaceType DiscreteFunctionSpaceType;
61 typedef typename BaseType :: DofVectorType DofVectorType;
62 typedef typename BaseType :: DofContainerType DofContainerType;
63
64 typedef typename DiscreteFunctionSpaceType :: GridPartType :: GridType GridType;
65
66 using BaseType :: name;
67
68 ManagedDiscreteFunction ( const std::string &name, const DiscreteFunctionSpaceType &dfSpace )
69 : BaseType( name, dfSpace, MemObject::allocate< DofContainerType >( dfSpace ) )
70 {}
71
72 explicit ManagedDiscreteFunction ( const BaseType &other )
73 : BaseType( other.name(), other.space(), MemObject::allocate< DofContainerType >( other.space() ) )
74 {
75 BaseType :: assign ( other );
76 }
77
78 ManagedDiscreteFunction ( const ThisType &other )
79 : BaseType( other.name(), other.space(), MemObject::allocate< DofContainerType >( other.space() ) )
80 {
81 BaseType :: assign ( other );
82 }
83
84 ManagedDiscreteFunction ( ThisType && ) = default;
85
86 void enableDofCompression () { MemObject::enableDofCompression(); }
87 };
88
89 } // namespace Fem
90
91} // namespace Dune
92
93#endif // #ifndef DUNE_FEM_MANAGEDVECTORFUNCTION_HH
discrete function space
forward declaration
Definition: discretefunction.hh:51
static std::pair< DofStorageInterface *, DofStorageType * > allocateManagedDofStorage(const GridType &grid, const MapperType &mapper, const DofStorageType *=0)
default implementation for creating a managed dof storage
Definition: dofmanager.hh:578
Dune namespace.
Definition: alignedallocator.hh:13
void assign(T &dst, const T &src, bool mask)
masked Simd assignment (scalar version)
Definition: simd.hh:447
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