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PreconditionerBlock.h
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2 //
3 // File PreconditionerBlock.h
4 //
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9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
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31 //
32 // Description: Block Preconditioner header
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 #ifndef NEKTAR_LIB_MULTIREGIONS_PRECONDITIONERBLOCK_H
36 #define NEKTAR_LIB_MULTIREGIONS_PRECONDITIONERBLOCK_H
41 #include <LocalRegions/TetExp.h>
42 #include <LocalRegions/PrismExp.h>
43 
44 namespace Nektar
45 {
46  namespace MultiRegions
47  {
49  typedef boost::shared_ptr<PreconditionerBlock>
51 
53  {
54  public:
55  /// Creates an instance of this class
57  const boost::shared_ptr<GlobalLinSys> &plinsys,
58  const boost::shared_ptr<AssemblyMap>
59  &pLocToGloMap)
60  {
62  ::AllocateSharedPtr(plinsys,pLocToGloMap);
63  p->InitObject();
64  return p;
65  }
66 
67  /// Name of class
68  static std::string className;
69 
71  const boost::shared_ptr<GlobalLinSys> &plinsys,
72  const AssemblyMapSharedPtr &pLocToGloMap);
73 
75  virtual ~PreconditionerBlock() {}
76 
77  protected:
78  const boost::weak_ptr<GlobalLinSys> m_linsys;
81  boost::shared_ptr<AssemblyMap> m_locToGloMap;
82 
83  private:
84  void BlockPreconditionerCG(void);
85  void BlockPreconditionerHDG(void);
86 
87  virtual void v_InitObject();
88  virtual void v_DoPreconditioner(
89  const Array<OneD, NekDouble>& pInput,
90  Array<OneD, NekDouble>& pOutput);
91  virtual void v_BuildPreconditioner();
92  };
93  }
94 }
95 
96 #endif
virtual void v_DoPreconditioner(const Array< OneD, NekDouble > &pInput, Array< OneD, NekDouble > &pOutput)
Apply preconditioner to pInput and store the result in pOutput.
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
boost::shared_ptr< AssemblyMap > AssemblyMapSharedPtr
Definition: AssemblyMap.h:53
static std::string className
Name of class.
#define MULTI_REGIONS_EXPORT
boost::shared_ptr< Preconditioner > PreconditionerSharedPtr
Definition: GlobalLinSys.h:62
static PreconditionerSharedPtr create(const boost::shared_ptr< GlobalLinSys > &plinsys, const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
Creates an instance of this class.
boost::shared_ptr< AssemblyMap > m_locToGloMap
boost::shared_ptr< PreconditionerBlock > PreconditionerBlockSharedPtr
boost::shared_ptr< DNekBlkMat > DNekBlkMatSharedPtr
Definition: NekTypeDefs.hpp:72
void BlockPreconditionerCG(void)
Construct a block preconditioner from for the continuous Galerkin system.
const boost::weak_ptr< GlobalLinSys > m_linsys
PreconditionerBlock(const boost::shared_ptr< GlobalLinSys > &plinsys, const AssemblyMapSharedPtr &pLocToGloMap)