diff options
Diffstat (limited to 'contrib/gcclibs/libgomp/team.c')
| -rw-r--r-- | contrib/gcclibs/libgomp/team.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/contrib/gcclibs/libgomp/team.c b/contrib/gcclibs/libgomp/team.c index 060f4ea..7d50bfc 100644 --- a/contrib/gcclibs/libgomp/team.c +++ b/contrib/gcclibs/libgomp/team.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. +/* Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. Contributed by Richard Henderson <rth@redhat.com>. This file is part of the GNU OpenMP Library (libgomp). @@ -183,6 +183,7 @@ gomp_team_start (void (*fn) (void *), void *data, unsigned nthreads, struct gomp_team *team; bool nested; unsigned i, n, old_threads_used = 0; + pthread_attr_t thread_attr, *attr; thr = gomp_thread (); nested = thr->ts.team != NULL; @@ -265,6 +266,17 @@ gomp_team_start (void (*fn) (void *), void *data, unsigned nthreads, } } + attr = &gomp_thread_attr; + if (gomp_cpu_affinity != NULL) + { + size_t stacksize; + pthread_attr_init (&thread_attr); + pthread_attr_setdetachstate (&thread_attr, PTHREAD_CREATE_DETACHED); + if (! pthread_attr_getstacksize (&gomp_thread_attr, &stacksize)) + pthread_attr_setstacksize (&thread_attr, stacksize); + attr = &thread_attr; + } + start_data = gomp_alloca (sizeof (struct gomp_thread_start_data) * (nthreads-i)); @@ -283,12 +295,17 @@ gomp_team_start (void (*fn) (void *), void *data, unsigned nthreads, start_data->fn_data = data; start_data->nested = nested; - err = pthread_create (&pt, &gomp_thread_attr, - gomp_thread_start, start_data); + if (gomp_cpu_affinity != NULL) + gomp_init_thread_affinity (attr); + + err = pthread_create (&pt, attr, gomp_thread_start, start_data); if (err != 0) gomp_fatal ("Thread creation failed: %s", strerror (err)); } + if (gomp_cpu_affinity != NULL) + pthread_attr_destroy (&thread_attr); + do_release: gomp_barrier_wait (nested ? &team->barrier : &gomp_threads_dock); |
