Nektar++
MeshPartitionScotch.h
Go to the documentation of this file.
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File MeshPartitionScotch.h
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: Scotch partitioner interface
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 #ifndef NEKTAR_LIB_UTILITIES_MESHPARTITIONMETIS_H
36 #define NEKTAR_LIB_UTILITIES_MESHPARTITIONMETIS_H
37 
39 
40 #include "MeshPartition.h"
41 
42 #include "scotch.h"
43 
44 namespace Nektar
45 {
46 namespace LibUtilities
47 {
48 
50  {
51  public:
52  /// Creates an instance of this class
54  const SessionReaderSharedPtr& pSession)
55  {
57  ::AllocateSharedPtr(pSession);
58  }
59 
60  /// Name of class
61  static std::string className;
62  static std::string cmdSwitch;
63 
65  virtual ~MeshPartitionScotch();
66 
67  private:
68  virtual void PartitionGraphImpl(
69  int& nVerts,
70  int& nVertConds,
75  int& nparts,
76  int& volume,
78 
79  void PartGraphVKway(
80  const SCOTCH_Num * const n,
81  const SCOTCH_Num * const xadj,
82  const SCOTCH_Num * const adjncy,
83  const SCOTCH_Num * const vwgt,
84  const SCOTCH_Num * const vsize,
85  const SCOTCH_Num * const wgtflag,
86  const SCOTCH_Num * const numflag,
87  const SCOTCH_Num * const nparts,
88  const SCOTCH_Num * const options,
89  SCOTCH_Num * const volume,
90  SCOTCH_Num * const part);
91 
92  int PartGraph2 (
93  const SCOTCH_Num * const n,
94  const SCOTCH_Num * const xadj,
95  const SCOTCH_Num * const adjncy,
96  const SCOTCH_Num * const vwgt,
97  const SCOTCH_Num * const adjwgt,
98  const SCOTCH_Num * const numflag,
99  const SCOTCH_Num * const nparts,
100  SCOTCH_Num * const part,
101  SCOTCH_Num flagval,
102  double kbalval);
103 
104  };
105 
106 }
107 }
108 
109 #endif
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
boost::shared_ptr< MeshPartition > MeshPartitionSharedPtr
static MeshPartitionSharedPtr create(const SessionReaderSharedPtr &pSession)
Creates an instance of this class.
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:50
MeshPartitionScotch(const SessionReaderSharedPtr &pSession)
int PartGraph2(const SCOTCH_Num *const n, const SCOTCH_Num *const xadj, const SCOTCH_Num *const adjncy, const SCOTCH_Num *const vwgt, const SCOTCH_Num *const adjwgt, const SCOTCH_Num *const numflag, const SCOTCH_Num *const nparts, SCOTCH_Num *const part, SCOTCH_Num flagval, double kbalval)
virtual void PartitionGraphImpl(int &nVerts, int &nVertConds, Nektar::Array< Nektar::OneD, int > &xadj, Nektar::Array< Nektar::OneD, int > &adjcy, Nektar::Array< Nektar::OneD, int > &vertWgt, Nektar::Array< Nektar::OneD, int > &vertSize, int &nparts, int &volume, Nektar::Array< Nektar::OneD, int > &part)
static std::string className
Name of class.
void PartGraphVKway(const SCOTCH_Num *const n, const SCOTCH_Num *const xadj, const SCOTCH_Num *const adjncy, const SCOTCH_Num *const vwgt, const SCOTCH_Num *const vsize, const SCOTCH_Num *const wgtflag, const SCOTCH_Num *const numflag, const SCOTCH_Num *const nparts, const SCOTCH_Num *const options, SCOTCH_Num *const volume, SCOTCH_Num *const part)