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teams.c revision 1.1 
      1 /* Copyright (C) 2018-2019 Free Software Foundation, Inc.
      2    Contributed by Jakub Jelinek <jakub (at) redhat.com>.
      3 
      4    This file is part of the GNU Offloading and Multi Processing Library
      5    (libgomp).
      6 
      7    Libgomp is free software; you can redistribute it and/or modify it
      8    under the terms of the GNU General Public License as published by
      9    the Free Software Foundation; either version 3, or (at your option)
     10    any later version.
     11 
     12    Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
     13    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
     14    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
     15    more details.
     16 
     17    Under Section 7 of GPL version 3, you are granted additional
     18    permissions described in the GCC Runtime Library Exception, version
     19    3.1, as published by the Free Software Foundation.
     20 
     21    You should have received a copy of the GNU General Public License and
     22    a copy of the GCC Runtime Library Exception along with this program;
     23    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     24    <http://www.gnu.org/licenses/>.  */
     25 
     26 /* This file handles the host TEAMS construct.  */
     27 
     28 #include "libgomp.h"
     29 #include <limits.h>
     30 
     31 static unsigned gomp_num_teams = 1, gomp_team_num = 0;
     32 
     33 void
     34 GOMP_teams_reg (void (*fn) (void *), void *data, unsigned int num_teams,
     35 		unsigned int thread_limit, unsigned int flags)
     36 {
     37   (void) flags;
     38   (void) num_teams;
     39   unsigned old_thread_limit_var = 0;
     40   if (thread_limit)
     41     {
     42       struct gomp_task_icv *icv = gomp_icv (true);
     43       old_thread_limit_var = icv->thread_limit_var;
     44       icv->thread_limit_var
     45 	= thread_limit > INT_MAX ? UINT_MAX : thread_limit;
     46     }
     47   if (num_teams == 0)
     48     num_teams = 3;
     49   gomp_num_teams = num_teams;
     50   for (gomp_team_num = 0; gomp_team_num < num_teams; gomp_team_num++)
     51     fn (data);
     52   gomp_num_teams = 1;
     53   gomp_team_num = 0;
     54   if (thread_limit)
     55     {
     56       struct gomp_task_icv *icv = gomp_icv (true);
     57       icv->thread_limit_var = old_thread_limit_var;
     58     }
     59 }
     60 
     61 int
     62 omp_get_num_teams (void)
     63 {
     64   return gomp_num_teams;
     65 }
     66 
     67 int
     68 omp_get_team_num (void)
     69 {
     70   return gomp_team_num;
     71 }
     72 
     73 ialias (omp_get_num_teams)
     74 ialias (omp_get_team_num)
     75