1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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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
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17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 \*---------------------------------------------------------------------------*/
27 #ifndef PstreamReduceOps_H
28 #define PstreamReduceOps_H
33 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
38 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
40 // Reduce operation with user specified communication schedule
41 template <class T, class BinaryOp>
44 const List<Pstream::commsStruct>& comms,
49 Pstream::gather(comms, Value, bop);
50 Pstream::scatter(comms, Value);
54 // Reduce using either linear or tree communication schedule
55 template <class T, class BinaryOp>
62 if (Pstream::nProcs() < Pstream::nProcsSimpleSum)
64 reduce(Pstream::linearCommunication(), Value, bop);
68 reduce(Pstream::treeCommunication(), Value, bop);
73 // Reduce using either linear or tree communication schedule
74 template <class T, class BinaryOp>
83 if (Pstream::nProcs() < Pstream::nProcsSimpleSum)
85 reduce(Pstream::linearCommunication(), WorkValue, bop);
89 reduce(Pstream::treeCommunication(), WorkValue, bop);
96 // Insist there is a specialisation for the reduction of a scalar
97 void reduce(scalar& Value, const sumOp<scalar>& bop);
100 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
102 } // End namespace Foam
104 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
108 // ************************************************************************* //