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Diffstat (limited to 'gcc-4.2.1-5666.3/libgomp/parallel.c')
-rw-r--r-- | gcc-4.2.1-5666.3/libgomp/parallel.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/gcc-4.2.1-5666.3/libgomp/parallel.c b/gcc-4.2.1-5666.3/libgomp/parallel.c deleted file mode 100644 index edd344a90..000000000 --- a/gcc-4.2.1-5666.3/libgomp/parallel.c +++ /dev/null @@ -1,126 +0,0 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. - Contributed by Richard Henderson <rth@redhat.com>. - - This file is part of the GNU OpenMP Library (libgomp). - - Libgomp is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - Libgomp 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 Lesser General Public License for - more details. - - You should have received a copy of the GNU Lesser General Public License - along with libgomp; see the file COPYING.LIB. If not, write to the - Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301, USA. */ - -/* As a special exception, if you link this library with other files, some - of which are compiled with GCC, to produce an executable, this library - does not by itself cause the resulting executable to be covered by the - GNU General Public License. This exception does not however invalidate - any other reasons why the executable file might be covered by the GNU - General Public License. */ - -/* This file handles the (bare) PARALLEL construct. */ - -#include "libgomp.h" - - -/* Determine the number of threads to be launched for a PARALLEL construct. - This algorithm is explicitly described in OpenMP 2.5 section 2.4.1. - SPECIFIED is a combination of the NUM_THREADS clause and the IF clause. - If the IF clause is false, SPECIFIED is forced to 1. When NUM_THREADS - is not present, SPECIFIED is 0. */ - -unsigned -gomp_resolve_num_threads (unsigned specified) -{ - /* Early exit for false IF condition or degenerate NUM_THREADS. */ - if (specified == 1) - return 1; - - /* If this is a nested region, and nested regions are disabled, force - this team to use only one thread. */ - if (gomp_thread()->ts.team && !gomp_nest_var) - return 1; - - /* If NUM_THREADS not specified, use nthreads_var. */ - if (specified == 0) - specified = gomp_nthreads_var; - - /* If dynamic threads are enabled, bound the number of threads - that we launch. */ - if (gomp_dyn_var) - { - unsigned dyn = gomp_dynamic_max_threads (); - if (dyn < specified) - return dyn; - } - - return specified; -} - -void -GOMP_parallel_start (void (*fn) (void *), void *data, unsigned num_threads) -{ - num_threads = gomp_resolve_num_threads (num_threads); - gomp_team_start (fn, data, num_threads, NULL); -} - -void -GOMP_parallel_end (void) -{ - gomp_team_end (); -} - - -/* The public OpenMP API for thread and team related inquiries. */ - -int -omp_get_num_threads (void) -{ - struct gomp_team *team = gomp_thread ()->ts.team; - return team ? team->nthreads : 1; -} - -/* ??? Does this function need to disregard dyn_var? I don't see - how else one could get a useable "maximum". */ - -int -omp_get_max_threads (void) -{ - return gomp_resolve_num_threads (0); -} - -int -omp_get_thread_num (void) -{ - return gomp_thread ()->ts.team_id; -} - -/* ??? This isn't right. The definition of this function is false if any - of the IF clauses for any of the parallels is false. Which is not the - same thing as any outer team having more than one thread. */ - -int omp_in_parallel (void) -{ - struct gomp_team *team = gomp_thread ()->ts.team; - - while (team) - { - if (team->nthreads > 1) - return true; - team = team->prev_ts.team; - } - - return false; -} - -ialias (omp_get_num_threads) -ialias (omp_get_max_threads) -ialias (omp_get_thread_num) -ialias (omp_in_parallel) |