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| author | Dan Albert <danalbert@google.com> | 2015-06-17 11:09:54 -0700 |
|---|---|---|
| committer | Dan Albert <danalbert@google.com> | 2015-06-17 14:15:22 -0700 |
| commit | f378ebf14df0952eae870c9865bab8326aa8f137 (patch) | |
| tree | 31794503eb2a8c64ea5f313b93100f1163afcffb /gcc-4.6/libgomp/config/bsd | |
| parent | 2c58169824949d3a597d9fa81931e001ef9b1bd0 (diff) | |
| download | toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.tar.gz toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.tar.bz2 toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.zip | |
Delete old versions of GCC.
Change-Id: I710f125d905290e1024cbd67f48299861790c66c
Diffstat (limited to 'gcc-4.6/libgomp/config/bsd')
| -rw-r--r-- | gcc-4.6/libgomp/config/bsd/proc.c | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/gcc-4.6/libgomp/config/bsd/proc.c b/gcc-4.6/libgomp/config/bsd/proc.c deleted file mode 100644 index ec16f2c89..000000000 --- a/gcc-4.6/libgomp/config/bsd/proc.c +++ /dev/null @@ -1,114 +0,0 @@ -/* Copyright (C) 2005, 2006, 2008, 2009 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 General Public License as published by - the Free Software Foundation; either version 3, 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 General Public License for - more details. - - Under Section 7 of GPL version 3, you are granted additional - permissions described in the GCC Runtime Library Exception, version - 3.1, as published by the Free Software Foundation. - - You should have received a copy of the GNU General Public License and - a copy of the GCC Runtime Library Exception along with this program; - see the files COPYING3 and COPYING.RUNTIME respectively. If not, see - <http://www.gnu.org/licenses/>. */ - -/* This file contains system specific routines related to counting - online processors and dynamic load balancing. It is expected that - a system may well want to write special versions of each of these. - - The following implementation uses a mix of POSIX and BSD routines. */ - -#include "libgomp.h" -#include <unistd.h> -#include <stdlib.h> -#ifdef HAVE_GETLOADAVG -# ifdef HAVE_SYS_LOADAVG_H -# include <sys/loadavg.h> -# endif -#endif -#ifdef HAVE_SYS_SYSCTL_H -# include <sys/sysctl.h> -#endif - -static int -get_num_procs (void) -{ -#ifdef _SC_NPROCESSORS_ONLN - return sysconf (_SC_NPROCESSORS_ONLN); -#elif defined HW_NCPU - int ncpus = 1; - size_t len = sizeof(ncpus); - sysctl((int[2]) {CTL_HW, HW_NCPU}, 2, &ncpus, &len, NULL, 0); - return ncpus; -#else - return 0; -#endif -} - -/* At startup, determine the default number of threads. It would seem - this should be related to the number of cpus online. */ - -void -gomp_init_num_threads (void) -{ - int ncpus = get_num_procs (); - - if (ncpus > 0) - gomp_global_icv.nthreads_var = ncpus; -} - -/* When OMP_DYNAMIC is set, at thread launch determine the number of - threads we should spawn for this team. */ -/* ??? I have no idea what best practice for this is. Surely some - function of the number of processors that are *still* online and - the load average. Here I use the number of processors online - minus the 15 minute load average. */ - -unsigned -gomp_dynamic_max_threads (void) -{ - unsigned n_onln, loadavg; - unsigned nthreads_var = gomp_icv (false)->nthreads_var; - - n_onln = get_num_procs (); - if (!n_onln || n_onln > nthreads_var) - n_onln = nthreads_var; - - loadavg = 0; -#ifdef HAVE_GETLOADAVG - { - double dloadavg[3]; - if (getloadavg (dloadavg, 3) == 3) - { - /* Add 0.1 to get a kind of biased rounding. */ - loadavg = dloadavg[2] + 0.1; - } - } -#endif - - if (loadavg >= n_onln) - return 1; - else - return n_onln - loadavg; -} - -int -omp_get_num_procs (void) -{ - int ncpus = get_num_procs (); - if (ncpus <= 0) - ncpus = gomp_icv (false)->nthreads_var; - return ncpus; -} - -ialias (omp_get_num_procs) |
