globalIndexI.H 3.35 KB
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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
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    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
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     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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    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.
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    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
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    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/

#include "ListOps.H"

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// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::globalIndex::globalIndex()
{}


Foam::globalIndex::globalIndex(const Xfer<labelList>& offsets)
:
    offsets_(offsets)
{}


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// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

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inline Foam::labelList& Foam::globalIndex::offsets()
{
    return offsets_;
}


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inline Foam::label Foam::globalIndex::offset(const label procI) const
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{
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    return offsets_[procI];
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}


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inline Foam::label Foam::globalIndex::localSize(const label procI) const
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{
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    return offsets_[procI+1] - offsets_[procI];
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}


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inline Foam::label Foam::globalIndex::localSize() const
{
    return localSize(Pstream::myProcNo());
}


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inline Foam::label Foam::globalIndex::size() const
{
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    return offsets_.last();
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}


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inline Foam::label Foam::globalIndex::toGlobal
(
    const label procI,
    const label i
) const
{
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    return i + offsets_[procI];
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}


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inline Foam::label Foam::globalIndex::toGlobal(const label i) const
{
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    return toGlobal(Pstream::myProcNo(), i);
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}

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//- Is on local processor
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inline bool Foam::globalIndex::isLocal(const label procI, const label i) const
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{
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    return i >= offsets_[procI] && i < offsets_[procI+1];
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}


inline bool Foam::globalIndex::isLocal(const label i) const
{
    return isLocal(Pstream::myProcNo(), i);
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}


inline Foam::label Foam::globalIndex::toLocal(const label procI, const label i)
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const
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{
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    label localI = i - offsets_[procI];
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    if (localI < 0 || i >= offsets_[procI+1])
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    {
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        FatalErrorInFunction
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            << "Global " << i << " does not belong on processor "
            << procI << endl << "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
{
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    if (i < 0 || i >= size())
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    {
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        FatalErrorInFunction
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            << "Global " << i << " does not belong on any processor."
            << " Offsets:" << offsets_
            << abort(FatalError);
    }

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    return findLower(offsets_, i+1);
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}


// ************************************************************************* //