Files
openfoam/src/OpenFOAM/parallel/globalIndex/globalIndexI.H
Mark Olesen 59dbee741f STYLE: use globalIndex localSize(), totalSize() in more places
- more explicit meaning than offset(), size() - respectively.
2022-02-21 19:53:21 +01:00

486 lines
9.4 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2011-2016 OpenFOAM Foundation
Copyright (C) 2018-2022 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 "ListOps.H"
#include "labelRange.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
inline Foam::globalIndex::globalIndex
(
const labelUList& listOffsets
)
{
if (listOffsets.size() > 1)
{
offsets_ = listOffsets;
}
}
inline Foam::globalIndex::globalIndex
(
labelList&& listOffsets
)
{
if (listOffsets.size() > 1)
{
offsets_.transfer(listOffsets);
}
else
{
listOffsets.clear();
}
}
inline Foam::globalIndex::globalIndex
(
const labelUList& offsetsOrSizes,
enum globalIndex::accessType accType
)
{
if (accType == accessType::SIZES)
{
reset(offsetsOrSizes);
}
else if (offsetsOrSizes.size() > 1)
{
// accessType::OFFSETS
offsets_ = offsetsOrSizes;
}
}
inline Foam::globalIndex::globalIndex(const label localSize)
{
reset(localSize);
}
inline Foam::globalIndex::globalIndex
(
const label localSize,
const globalIndex::gatherOnly,
const label comm
)
{
// Gather sizes (one-sided)
reset(UPstream::listGatherValues(localSize, comm));
}
inline Foam::globalIndex::globalIndex
(
const label localSize,
const globalIndex::gatherNone,
const label /* comm (ignored) */
)
:
offsets_(2)
{
offsets_[0] = 0;
offsets_[1] = localSize;
}
inline Foam::globalIndex::globalIndex
(
const label localSize,
const int tag,
const label comm,
const bool parallel
)
{
reset(localSize, tag, comm, parallel);
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
inline bool Foam::globalIndex::empty() const
{
return offsets_.empty() || offsets_.last() == 0;
}
inline Foam::label Foam::globalIndex::totalSize() const
{
const label len = (offsets_.size() - 1);
return (len < 1) ? static_cast<label>(0) : offsets_[len];
}
inline Foam::label Foam::globalIndex::size() const
{
return totalSize();
}
inline Foam::label Foam::globalIndex::nProcs() const noexcept
{
const label len = (offsets_.size() - 1);
return (len < 1) ? static_cast<label>(0) : len;
}
inline Foam::labelRange Foam::globalIndex::allProcs() const noexcept
{
// Proc 0 -> nProcs
const label len = (offsets_.size() - 1);
return (len < 1) ? labelRange() : labelRange(0, len);
}
inline Foam::labelRange Foam::globalIndex::subProcs() const noexcept
{
// Proc 1 -> nProcs
const label len = (offsets_.size() - 2);
return (len < 1) ? labelRange() : labelRange(1, len);
}
inline const Foam::labelList& Foam::globalIndex::offsets() const noexcept
{
return offsets_;
}
inline Foam::labelList& Foam::globalIndex::offsets() noexcept
{
return offsets_;
}
inline const Foam::labelUList Foam::globalIndex::localStarts() const
{
const label len = (offsets_.size() - 1);
if (len < 1) return labelUList::null();
return labelList::subList(offsets_, len);
}
inline Foam::label Foam::globalIndex::localStart(const label proci) const
{
return offsets_[proci];
}
inline Foam::label Foam::globalIndex::localStart() const
{
return localStart(Pstream::myProcNo());
}
inline Foam::label Foam::globalIndex::localSize(const label proci) const
{
return offsets_[proci+1] - offsets_[proci];
}
inline Foam::label Foam::globalIndex::localSize() const
{
return localSize(Pstream::myProcNo());
}
inline Foam::label Foam::globalIndex::maxSize() const
{
// Use out-of-range proci to avoid excluding any processor
return maxNonLocalSize(-1);
}
inline Foam::label Foam::globalIndex::maxNonLocalSize() const
{
return maxNonLocalSize(Pstream::myProcNo());
}
inline Foam::labelRange Foam::globalIndex::range(const label proci) const
{
return labelRange(offsets_[proci], offsets_[proci+1] - offsets_[proci]);
}
inline Foam::labelRange Foam::globalIndex::range() const
{
return range(Pstream::myProcNo());
}
inline bool Foam::globalIndex::isLocal(const label proci, const label i) const
{
return i >= offsets_[proci] && i < offsets_[proci+1];
}
inline bool Foam::globalIndex::isLocal(const label i) const
{
return isLocal(Pstream::myProcNo(), i);
}
inline Foam::label Foam::globalIndex::toGlobal
(
const label proci,
const label i
) const
{
return i + offsets_[proci];
}
inline Foam::label Foam::globalIndex::toGlobal(const label i) const
{
return toGlobal(Pstream::myProcNo(), i);
}
inline Foam::labelList Foam::globalIndex::toGlobal
(
const label proci,
const labelUList& labels
) const
{
labelList result(labels);
inplaceToGlobal(proci, result);
return result;
}
inline Foam::labelList Foam::globalIndex::toGlobal
(
const labelUList& labels
) const
{
return toGlobal(Pstream::myProcNo(), labels);
}
inline void Foam::globalIndex::inplaceToGlobal
(
const label proci,
labelList& labels
) const
{
const label off = offsets_[proci];
for (label& val : labels)
{
val += off;
}
}
inline void Foam::globalIndex::inplaceToGlobal(labelList& labels) const
{
inplaceToGlobal(Pstream::myProcNo(), labels);
}
inline Foam::label
Foam::globalIndex::toLocal(const label proci, const label i) const
{
const label locali = i - offsets_[proci];
if (locali < 0 || i >= offsets_[proci+1])
{
FatalErrorInFunction
<< "Global " << i << " does not belong on processor "
<< proci << nl << "Offsets:" << offsets_
<< abort(FatalError);
}
return locali;
}
inline Foam::label Foam::globalIndex::toLocal(const label i) const
{
return toLocal(Pstream::myProcNo(), i);
}
inline Foam::label Foam::globalIndex::whichProcID(const label i) const
{
if (i < 0 || i >= totalSize())
{
FatalErrorInFunction
<< "Global " << i << " does not belong on any processor."
<< " Offsets:" << offsets_
<< abort(FatalError);
}
return findLower(offsets_, i+1);
}
// * * * * * * * * * * * * * * * * Iterators * * * * * * * * * * * * * * * * //
inline Foam::globalIndex::const_iterator::
const_iterator
(
const globalIndex* globalIdx,
const label i
) noexcept
:
parent_(globalIdx),
proci_(i)
{}
inline Foam::label Foam::globalIndex::const_iterator::
proci() const noexcept
{
return proci_;
}
inline Foam::label Foam::globalIndex::const_iterator::
start() const
{
return (*parent_).localStart(proci_);
}
inline Foam::label Foam::globalIndex::const_iterator::
size() const
{
return (*parent_).localSize(proci_);
}
inline Foam::labelRange Foam::globalIndex::const_iterator::
range() const
{
return (*parent_).range(proci_);
}
inline Foam::labelRange Foam::globalIndex::const_iterator::
operator*() const
{
return this->range();
}
inline Foam::globalIndex::const_iterator&
Foam::globalIndex::const_iterator::
operator++()
{
++proci_;
return *this;
}
inline Foam::globalIndex::const_iterator
Foam::globalIndex::const_iterator::
operator++(int)
{
const_iterator old(*this);
++proci_;
return old;
}
inline Foam::globalIndex::const_iterator&
Foam::globalIndex::const_iterator::
operator--()
{
--proci_;
return *this;
}
inline Foam::globalIndex::const_iterator
Foam::globalIndex::const_iterator::
operator--(int)
{
const_iterator old(*this);
--proci_;
return old;
}
inline bool
Foam::globalIndex::const_iterator::
operator==
(
const const_iterator& iter
) const noexcept
{
return (proci_ == iter.proci_);
}
inline bool
Foam::globalIndex::const_iterator::
operator!=
(
const const_iterator& iter
) const noexcept
{
return (proci_ != iter.proci_);
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
inline Foam::globalIndex::const_iterator
Foam::globalIndex::cbegin() const noexcept
{
return const_iterator(this);
}
inline const Foam::globalIndex::const_iterator
Foam::globalIndex::cend() const noexcept
{
return const_iterator(this, this->nProcs());
}
inline Foam::globalIndex::const_iterator
Foam::globalIndex::begin() const noexcept
{
return const_iterator(this);
}
inline const Foam::globalIndex::const_iterator
Foam::globalIndex::end() const noexcept
{
return const_iterator(this, this->nProcs());
}
// ************************************************************************* //