Nektar++
MeshPartitionMetis.cpp
Go to the documentation of this file.
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File MeshPartitionMetis.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: Metis partitioner interface
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #include "MeshPartitionMetis.h"
37 
40 
41 namespace Nektar
42 {
43 namespace LibUtilities
44 {
45 
48  "Metis",
50  "Partitioning using the METIS library.");
51 
53  = SessionReader::RegisterCmdLineFlag("use-metis","","Use METIS for mesh partitioning.");
54 
56  : MeshPartition(pSession)
57  {
58 
59  }
60 
62  {
63 
64  }
65 
67  int& nVerts,
68  int& nVertConds,
73  int& nparts,
74  int& volume,
76  {
77  Metis::PartGraphVKway(nVerts, nVertConds, xadj, adjcy, vertWgt, vertSize, nparts, volume, part);
78  }
79 }
80 }
static void PartGraphVKway(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)
Definition: Metis.hpp:71
static std::string RegisterCmdLineFlag(const std::string &pName, const std::string &pShortName, const std::string &pDescription)
Registers a command-line flag with the session reader.
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:50
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 MeshPartitionSharedPtr create(const SessionReaderSharedPtr &pSession)
Creates an instance of this class.
MeshPartitionMetis(const SessionReaderSharedPtr &pSession)
static std::string className
Name of class.
MeshPartitionFactory & GetMeshPartitionFactory()
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, tDescription pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:215