7e0acfa4ed
- on large memory systems (eg, 6TB) the process information exceeds an 'int' range, so adjust parsing of the /proc/.. to use int64 ENH: update/modernize OSspecific system information ENH: minor update of profiling code - std::string, noexcept, lazier evaluations STYLE: use direct call of memInfo
68 lines
2.0 KiB
C++
68 lines
2.0 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 | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2011 OpenFOAM Foundation
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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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Application
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Description
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\*---------------------------------------------------------------------------*/
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#include "memInfo.H"
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#include "IOstreams.H"
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#include "List.H"
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#include "vector.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 int n = 10000000;
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const char* const memTags = "peak/size/rss/free mem: ";
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memInfo mem;
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Info<< memTags << mem << endl;
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List<vector> list(n, vector::one);
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Info<< "allocate " << n << " vectors" << nl;
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Info<< memTags << mem.update() << endl;
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list.clear();
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Info<< "clear" << nl;
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Info<< memTags << mem.update() << endl;
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mem.writeEntry("memory", Info);
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Info<< endl;
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return 0;
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}
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// ************************************************************************* //
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