85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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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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Description
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Test speeds for some HashTable operations
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "HashTable.H"
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#include "HashPtrTable.H"
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#include "Map.H"
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#include "StaticHashTable.H"
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#include "cpuTime.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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const label nLoops = 30;
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const label nBase = 100000;
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const label nSize = nLoops * nBase;
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cpuTime timer;
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// ie, a
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// Map<label> map(2 * nSize);
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// HashTable<label, label, Hash<label> > map(2 * nSize);
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// StaticHashTable<label, label, Hash<label> > map(2 * nSize);
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HashTable<label, label, Hash<label> > map(2 * nSize);
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Info<< "Constructed map of size: " << nSize
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<< " (size " << map.size() << " capacity " << map.capacity() << ") "
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<< " " << timer.cpuTimeIncrement() << " s\n\n";
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for (label i = 0; i < nSize; i++)
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{
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map.insert(i, i);
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}
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Info<< "Inserted " << nSize << " elements"
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<< " (size " << map.size() << " capacity " << map.capacity() << ") "
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<< timer.cpuTimeIncrement() << " s\n";
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label elemI = 0;
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for (label iLoop = 0; iLoop < nLoops; iLoop++)
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{
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for (label i = 0; i < nBase; i++)
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{
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map.erase(elemI++);
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}
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map.shrink();
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Info<< "loop " << iLoop << " - Erased " << nBase << " elements"
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<< " (size " << map.size() << " capacity " << map.capacity() << ") "
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<< timer.cpuTimeIncrement() << " s\n";
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}
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return 0;
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}
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// ************************************************************************* //
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