arts_omp.cc

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/* Copyright (C) 2008 Stefan Buehler <sbuehler(at)ltu.se>
  
   This program 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 2 of the
   License, or (at your option) any later version.
  
   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
   USA. */

#if HAVE_CONFIG_H
#include <config.h>
#else
#error "Please run ./configure in the top arts directory before compiling."
#endif

#include <iostream>
using namespace std;

#include "arts_omp.h"



int arts_omp_get_max_threads()
{

#ifdef _OPENMP
  int max_threads = omp_get_max_threads();
#else
  int max_threads = 1;
#endif

  return max_threads;
}



bool arts_omp_in_parallel()
{

#ifdef _OPENMP
#ifdef __ICC
  return (omp_get_max_threads() > 1);
#else
  return omp_in_parallel();
#endif
#else
  return false;
#endif
}



int arts_omp_get_thread_num()
{

#ifdef _OPENMP
  int thread_num = omp_get_thread_num();
#else
  int thread_num = 0;
#endif
  
  return thread_num;
}



int arts_omp_get_nested()
{

#ifdef _OPENMP
  int nested = omp_get_nested();
#else
  int nested = 0;
#endif

  return nested;
}



#ifdef _OPENMP
void arts_omp_set_nested(int i)
#else
void arts_omp_set_nested(int i _U_)
#endif
{

#ifdef _OPENMP
  omp_set_nested(i);
#else
  // Nothing to do here.
#endif

}

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