1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
11 OpenFOAM is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2 of the License, or (at your
14 option) any later version.
16 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
33 \*---------------------------------------------------------------------------*/
35 #ifndef parMetisDecomp_H
36 #define parMetisDecomp_H
38 #include "decompositionMethod.H"
43 /*---------------------------------------------------------------------------*\
44 Class parMetisDecomp Declaration
45 \*---------------------------------------------------------------------------*/
49 public decompositionMethod
53 const polyMesh& mesh_;
56 // Private Member Functions
58 //- Insert list in front of list.
60 static void prepend(const UList<Type>&, List<Type>&);
61 //- Insert list at end of list.
63 static void append(const UList<Type>&, List<Type>&);
69 const pointField& cellCentres,
70 Field<int>& cellWeights,
71 Field<int>& faceWeights,
72 const List<int>& options,
74 List<int>& finalDecomp
78 //- Disallow default bitwise copy construct and assignment
79 void operator=(const parMetisDecomp&);
80 parMetisDecomp(const parMetisDecomp&);
85 //- Runtime type information
91 //- Construct given the decomposition dictionary and mesh
94 const dictionary& decompositionDict,
107 //- parMetis handles Foam processor boundaries
108 virtual bool parallelAware() const
113 //- Return for every coordinate the wanted processor number. Use the
114 // mesh connectivity (if needed)
115 virtual labelList decompose(const pointField&);
117 //- Return for every coordinate the wanted processor number. Gets
118 // passed agglomeration map (from fine to coarse cells) and coarse cell
119 // location. Can be overridden by decomposers that provide this
120 // functionality natively.
121 virtual labelList decompose
123 const labelList& agglom,
127 //- Return for every coordinate the wanted processor number. Explicitly
128 // provided mesh connectivity.
129 // The connectivity is equal to mesh.cellCells() except for
130 // - in parallel the cell numbers are global cell numbers (starting
131 // from 0 at processor0 and then incrementing all through the
133 // - the connections are across coupled patches
134 virtual labelList decompose
136 const labelListList& globalCellCells,
142 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
144 } // End namespace Foam
146 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
149 # include "parMetisDecompTemplates.C"
152 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
156 // ************************************************************************* //