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89 lines
2 KiB
C
89 lines
2 KiB
C
/*
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* This file is part of libcxxsupport.
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*
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* libcxxsupport is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* libcxxsupport is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libcxxsupport; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* libcxxsupport is being developed at the Max-Planck-Institut fuer Astrophysik
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* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
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* (DLR).
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*/
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/*
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* Copyright (C) 2005, 2006, 2007, 2009, 2010 Max-Planck-Society
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* \author Martin Reinecke
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*/
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#ifndef PLANCK_OPENMP_SUPPORT_H
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#define PLANCK_OPENMP_SUPPORT_H
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#ifdef _OPENMP
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#include <omp.h>
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#endif
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#include "cxxutils.h"
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inline bool openmp_enabled()
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{
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#ifdef _OPENMP
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return true;
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#else
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return false;
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#endif
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}
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inline int openmp_max_threads ()
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{
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#ifdef _OPENMP
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return omp_get_max_threads();
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#else
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return 1;
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#endif
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}
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inline int openmp_num_threads ()
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{
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#ifdef _OPENMP
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return omp_get_num_threads();
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#else
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return 1;
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#endif
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}
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inline int openmp_thread_num ()
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{
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#ifdef _OPENMP
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return omp_get_thread_num();
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#else
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return 0;
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#endif
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}
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/*! Calculates the range of indices between \a glo and \a ghi which
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must be processed by this thread and returns it in \a lo and \a hi.
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The indices \a ghi and \a hi are "one past the last real index",
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in analogy to the STL iterators. */
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inline void openmp_calc_share (int64 glo, int64 ghi, int64 &lo, int64 &hi)
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{
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#ifdef _OPENMP
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calcShareGeneral (glo,ghi,omp_get_num_threads(),omp_get_thread_num(),lo,hi);
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#else
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lo=glo; hi=ghi;
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#endif
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}
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#endif
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