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GlobalLinSysPETScFull.h
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File GlobalLinSysDirectXxt.h
4 //
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7 // The MIT License
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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: GlobalLinSysDirectXxt header
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef NEKTAR_LIB_MULTIREGIONS_GLOBALLINSYSPETSCFULL_H
37 #define NEKTAR_LIB_MULTIREGIONS_GLOBALLINSYSPETSCFULL_H
38 
42 
43 namespace Nektar
44 {
45  namespace MultiRegions
46  {
47  // Forward declarations
48 
49  //class AssemblyMapDG;
50  class ExpList;
51 
52  /// A global linear system.
54  {
55  public:
56 
57  /// Creates an instance of this class
59  const GlobalLinSysKey &pLinSysKey,
60  const boost::weak_ptr<ExpList> &pExpList,
61  const boost::shared_ptr<AssemblyMap> &pLocToGloMap)
62  {
64  ::AllocateSharedPtr(pLinSysKey, pExpList, pLocToGloMap);
65  }
66 
67  /// Name of class
68  MULTI_REGIONS_EXPORT static std::string className;
69 
70  /// Constructor for full direct matrix solve.
72  const GlobalLinSysKey &pLinSysKey,
73  const boost::weak_ptr<ExpList> &pExpList,
74  const boost::shared_ptr<AssemblyMap> &pLocToGloMap);
75 
77 
78  private:
79  /// Solve the linear system for given input and output vectors
80  /// using a specified local to global map.
81  virtual void v_Solve(
84  const AssemblyMapSharedPtr &locToGloMap,
85  const Array<OneD, const NekDouble> &dirForcing
87  virtual void v_DoMatrixMultiply(
88  const Array<OneD, const NekDouble> &input,
89  Array<OneD, NekDouble> &output);
90  };
91  }
92 }
93 
94 #endif
static std::string className
Name of class.
static Array< OneD, NekDouble > NullNekDouble1DArray
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
boost::shared_ptr< AssemblyMap > AssemblyMapSharedPtr
Definition: AssemblyMap.h:53
#define MULTI_REGIONS_EXPORT
GlobalLinSysPETScFull(const GlobalLinSysKey &pLinSysKey, const boost::weak_ptr< ExpList > &pExpList, const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
Constructor for full direct matrix solve.
virtual void v_Solve(const Array< OneD, const NekDouble > &in, Array< OneD, NekDouble > &out, const AssemblyMapSharedPtr &locToGloMap, const Array< OneD, const NekDouble > &dirForcing=NullNekDouble1DArray)
Solve the linear system for given input and output vectors using a specified local to global map...
Describe a linear system.
A PETSc global linear system.
boost::shared_ptr< GlobalLinSys > GlobalLinSysSharedPtr
Pointer to a GlobalLinSys object.
Definition: GlobalLinSys.h:52
static GlobalLinSysSharedPtr create(const GlobalLinSysKey &pLinSysKey, const boost::weak_ptr< ExpList > &pExpList, const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
Creates an instance of this class.
virtual void v_DoMatrixMultiply(const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output)
Apply matrix-vector multiplication using local approach and the assembly map.