230d04327e
This commit removes the --with-mpi-thread-multiple option and forces MPI_THREAD_MULTIPLE support. This cleans up an abstration violation in opal where OMPI_ENABLE_THREAD_MULTIPLE determines whether the opal_using_threads is meaningful. To reduce the performance hit on MPI_THREAD_SINGLE programs an OPAL_UNLIKELY is used for the check on opal_using_threads in OPAL_THREAD_* macros. This commit does not clean up the arguments to the various functions that take whether muti-threading support is enabled. That should be done at a later time. Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
100 строки
3.0 KiB
C
100 строки
3.0 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
|
|
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* Copyright (c) 2007-2016 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* Copyright (c) 2015 Research Organization for Information Science
|
|
* and Technology (RIST). All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "opal_config.h"
|
|
|
|
#include "opal/threads/mutex.h"
|
|
|
|
/*
|
|
* Wait and see if some upper layer wants to use threads, if support
|
|
* exists.
|
|
*/
|
|
bool opal_uses_threads = false;
|
|
|
|
static void opal_mutex_construct(opal_mutex_t *m)
|
|
{
|
|
#if OPAL_ENABLE_DEBUG
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
|
|
/* set type to ERRORCHECK so that we catch recursive locks */
|
|
#if OPAL_HAVE_PTHREAD_MUTEX_ERRORCHECK_NP
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK_NP);
|
|
#elif OPAL_HAVE_PTHREAD_MUTEX_ERRORCHECK
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
|
|
#endif /* OPAL_HAVE_PTHREAD_MUTEX_ERRORCHECK_NP */
|
|
|
|
pthread_mutex_init(&m->m_lock_pthread, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
|
|
m->m_lock_debug = 0;
|
|
m->m_lock_file = NULL;
|
|
m->m_lock_line = 0;
|
|
#else
|
|
|
|
/* Without debugging, choose the fastest available mutexes */
|
|
pthread_mutex_init(&m->m_lock_pthread, NULL);
|
|
|
|
#endif /* OPAL_ENABLE_DEBUG */
|
|
|
|
#if OPAL_HAVE_ATOMIC_SPINLOCKS
|
|
opal_atomic_init( &m->m_lock_atomic, OPAL_ATOMIC_UNLOCKED );
|
|
#endif
|
|
}
|
|
|
|
static void opal_mutex_destruct(opal_mutex_t *m)
|
|
{
|
|
pthread_mutex_destroy(&m->m_lock_pthread);
|
|
}
|
|
|
|
OBJ_CLASS_INSTANCE(opal_mutex_t,
|
|
opal_object_t,
|
|
opal_mutex_construct,
|
|
opal_mutex_destruct);
|
|
|
|
static void opal_recursive_mutex_construct(opal_recursive_mutex_t *m)
|
|
{
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
|
|
#if OPAL_ENABLE_DEBUG
|
|
m->m_lock_debug = 0;
|
|
m->m_lock_file = NULL;
|
|
m->m_lock_line = 0;
|
|
#endif
|
|
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
|
|
|
|
pthread_mutex_init(&m->m_lock_pthread, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
|
|
#if OPAL_HAVE_ATOMIC_SPINLOCKS
|
|
opal_atomic_init( &m->m_lock_atomic, OPAL_ATOMIC_UNLOCKED );
|
|
#endif
|
|
}
|
|
|
|
OBJ_CLASS_INSTANCE(opal_recursive_mutex_t,
|
|
opal_object_t,
|
|
opal_recursive_mutex_construct,
|
|
opal_mutex_destruct);
|