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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2017-2025 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
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/>.
Class
Foam::fileOperations::hostCollatedFileOperation
Description
Version of collatedFileOperation with multiple read/write ranks.
In parallel it will assume ranks are sorted according to hostname and the
lowest rank per hostname will be the IO rank. The output directories will
get a unique name processors\<N\>_\<low\>-\<high\> where N is the overall
number of processors and low and high is the range of ranks contained in the
files. Each of these subsets uses its own communicator.
Instead of using the hostnames the IO ranks can be assigned using the
FOAM_IORANKS environment variable (also when running non-parallel), e.g.
when decomposing into 4:
FOAM_IORANKS='(0 2)' decomposePar -fileHandler hostCollated
will generate
processors4_0-1/
containing data for processors 0 to 1
processors4_2-3/
containing data for processors 2 to 3
See also
collatedFileOperation
SourceFiles
hostCollatedFileOperation.C
\*---------------------------------------------------------------------------*/
#ifndef hostCollatedFileOperation_fileOperation_H
#define hostCollatedFileOperation_fileOperation_H
#include "collatedFileOperation.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace fileOperations
{
/*---------------------------------------------------------------------------*\
Class hostCollatedFileOperation Declaration
\*---------------------------------------------------------------------------*/
class hostCollatedFileOperation
:
public collatedFileOperation
{
// Private Member Functions
//- Get the list of processors part of this set
static labelList subRanks(const label n);
public:
//- Runtime type information
TypeName("hostCollated");
// Constructors
//- Construct null
hostCollatedFileOperation(const bool verbose);
//- Destructor
virtual ~hostCollatedFileOperation();
};
/*---------------------------------------------------------------------------*\
Class hostCollatedFileOperationInitialise Declaration
\*---------------------------------------------------------------------------*/
class hostCollatedFileOperationInitialise
:
public collatedFileOperationInitialise
{
public:
// Constructors
//- Construct from components
hostCollatedFileOperationInitialise(int& argc, char**& argv)
:
collatedFileOperationInitialise(argc, argv)
{}
//- Destructor
virtual ~hostCollatedFileOperationInitialise()
{}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace fileOperations
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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