allReduce.H

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    Copyright (C) 2012-2016 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
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    for more details.
 
    You should have received a copy of the GNU General Public License
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InNamespace
    Foam
 
Description
    Various functions to wrap MPI_Allreduce
 
SourceFiles
    allReduceTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef allReduce_H
#define allReduce_H
 
#include "UPstream.H"
 
#include <mpi.h>
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
template<class Type, class BinaryOp>
void allReduce
(
    Type& Value,
    int count,
    MPI_Datatype MPIType,
    MPI_Op op,
    const BinaryOp& bop,
    const int tag,
    const label communicator
);
 
template<class Type>
void iallReduce
(
    void* Value,
    int count,
    MPI_Datatype MPIType,
    MPI_Op op,
    const label communicator,
    label& requestID
);
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "allReduceTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //