Nektar++
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Properties Friends Macros Pages
GlobalLinSysDirect.cpp
Go to the documentation of this file.
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File GlobalLinSys.cpp
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
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).
12 //
13 // License for the specific language governing rights and limitations under
14 // Permission is hereby granted, free of charge, to any person obtaining a
15 // copy of this software and associated documentation files (the "Software"),
16 // to deal in the Software without restriction, including without limitation
17 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 // and/or sell copies of the Software, and to permit persons to whom the
19 // Software is furnished to do so, subject to the following conditions:
20 //
21 // The above copyright notice and this permission notice shall be included
22 // in all copies or substantial portions of the Software.
23 //
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
25 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
30 // DEALINGS IN THE SOFTWARE.
31 //
32 // Description: GlobalLinSys definition
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
37 
38 namespace Nektar
39 {
40  namespace MultiRegions
41  {
42  /**
43  * @class GlobalLinSysDirect
44  *
45  * Solves a linear system using direct methods.
46  */
47 
48 
49 // GlobalLinSysDirect::GlobalLinSysDirect(void)
50 // {
51 // }
52 
53  /// Constructor for full direct matrix solve.
55  const GlobalLinSysKey &pKey,
56  const boost::weak_ptr<ExpList> &pExp,
57  const boost::shared_ptr<AssemblyMap>
58  &pLocToGloMap)
59  : GlobalLinSys(pKey, pExp, pLocToGloMap)
60  {
61  }
62 
64  {
65  }
66 
67  /// Solve the linear system for given input and output vectors.
69  const int pNumRows,
70  const Array<OneD,const NekDouble> &pInput,
71  Array<OneD, NekDouble> &pOutput,
72  const AssemblyMapSharedPtr &pLocToGloMap,
73  const int pNumDir)
74  {
75  const int nHomDofs = pNumRows - pNumDir;
76 
77  DNekVec Vin (nHomDofs, pInput + pNumDir);
78  DNekVec Vout(nHomDofs, pOutput + pNumDir, eWrapper);
79 
80  m_linSys->Solve(Vin, Vout);
81  }
82  }
83 }
boost::shared_ptr< AssemblyMap > AssemblyMapSharedPtr
Definition: AssemblyMap.h:53
DNekLinSysSharedPtr m_linSys
Basic linear system object.
virtual void v_SolveLinearSystem(const int pNumRows, const Array< OneD, const NekDouble > &pInput, Array< OneD, NekDouble > &pOutput, const AssemblyMapSharedPtr &locToGloMap, const int pNumDir)
Solve the linear system for given input and output vectors.
GlobalLinSysDirect(const GlobalLinSysKey &pKey, const boost::weak_ptr< ExpList > &pExp, const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
Constructor for full direct matrix solve.
Describe a linear system.
A global linear system.
Definition: GlobalLinSys.h:74