166 lines
4.4 KiB
C++
166 lines
4.4 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | www.openfoam.com
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
Copyright (C) 2022-2025 OpenCFD Ltd.
|
|
-------------------------------------------------------------------------------
|
|
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
|
|
(at your option) any later version.
|
|
|
|
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "OPstream.H"
|
|
#include "IPstream.H"
|
|
#include "contiguous.H"
|
|
|
|
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
|
|
|
|
template<class Type>
|
|
void Foam::Pstream::broadcast(Type& value, const label comm)
|
|
{
|
|
if constexpr (is_contiguous_v<Type>)
|
|
{
|
|
// Note: contains parallel guard internally
|
|
UPstream::broadcast
|
|
(
|
|
reinterpret_cast<char*>(&value),
|
|
sizeof(Type),
|
|
comm
|
|
);
|
|
}
|
|
else if (UPstream::is_parallel(comm))
|
|
{
|
|
if (UPstream::master(comm))
|
|
{
|
|
OPBstream os(comm);
|
|
os << value;
|
|
}
|
|
else // UPstream::is_subrank(comm)
|
|
{
|
|
IPBstream is(comm);
|
|
is >> value;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template<class Type, class... Args>
|
|
void Foam::Pstream::broadcasts(const label comm, Type& arg1, Args&&... args)
|
|
{
|
|
if (UPstream::is_parallel(comm))
|
|
{
|
|
if (UPstream::master(comm))
|
|
{
|
|
OPBstream os(comm);
|
|
Detail::outputLoop(os, arg1, std::forward<Args>(args)...);
|
|
}
|
|
else // UPstream::is_subrank(comm)
|
|
{
|
|
IPBstream is(comm);
|
|
Detail::inputLoop(is, arg1, std::forward<Args>(args)...);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template<class ListType>
|
|
void Foam::Pstream::broadcastList(ListType& list, const label comm)
|
|
{
|
|
if constexpr (is_contiguous_v<typename ListType::value_type>)
|
|
{
|
|
// List data are contiguous
|
|
// 1. broadcast the size
|
|
// 2. resize for receiver list
|
|
// 3. broadcast contiguous contents
|
|
|
|
if (UPstream::is_parallel(comm))
|
|
{
|
|
label len(list.size());
|
|
|
|
UPstream::broadcast
|
|
(
|
|
reinterpret_cast<char*>(&len),
|
|
sizeof(label),
|
|
comm
|
|
);
|
|
|
|
if (UPstream::is_subrank(comm))
|
|
{
|
|
list.resize_nocopy(len);
|
|
}
|
|
|
|
if (len)
|
|
{
|
|
UPstream::broadcast
|
|
(
|
|
list.data_bytes(),
|
|
list.size_bytes(),
|
|
comm
|
|
);
|
|
}
|
|
}
|
|
}
|
|
else if (UPstream::is_parallel(comm))
|
|
{
|
|
// List data are non-contiguous - serialize/de-serialize
|
|
|
|
if (UPstream::master(comm))
|
|
{
|
|
OPBstream os(comm);
|
|
os << list;
|
|
}
|
|
else // UPstream::is_subrank(comm)
|
|
{
|
|
IPBstream is(comm);
|
|
is >> list;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
// Convenience wrappers - defined after all specialisations are known
|
|
|
|
namespace Foam
|
|
{
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
//- Return a broadcasted value (uses a copy internally)
|
|
template<class Type>
|
|
Type returnBroadcast
|
|
(
|
|
const Type& value,
|
|
const label comm = UPstream::worldComm
|
|
)
|
|
{
|
|
Type work(value);
|
|
Pstream::broadcast(work, comm);
|
|
return work;
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
} // End namespace Foam
|
|
|
|
|
|
// ************************************************************************* //
|