NFFT  3.3.2
thread.c
00001 /*
00002  * Copyright (c) 2002, 2016 Jens Keiner, Stefan Kunis, Daniel Potts
00003  *
00004  * This program is free software; you can redistribute it and/or modify it under
00005  * the terms of the GNU General Public License as published by the Free Software
00006  * Foundation; either version 2 of the License, or (at your option) any later
00007  * version.
00008  *
00009  * This program is distributed in the hope that it will be useful, but WITHOUT
00010  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00011  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
00012  * details.
00013  *
00014  * You should have received a copy of the GNU General Public License along with
00015  * this program; if not, write to the Free Software Foundation, Inc., 51
00016  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00017  */
00018 
00019 #include "infft.h"
00020 
00021 #ifdef _OPENMP
00022 #include <omp.h>
00023 #endif
00024 
00025 INT Y(get_num_threads)(void)
00026 {
00027 #ifdef _OPENMP
00028   INT nthreads;
00029   #pragma omp parallel default(shared)
00030   {
00031     INT n = (INT)omp_get_num_threads();
00032     #pragma omp master
00033     {
00034       nthreads = n;
00035     }
00036   }
00037   return nthreads;
00038 #else
00039   return 1;
00040 #endif
00041 }