ee3517427e
Add a framework to support different types of threading models including user space thread packages such as Qthreads and argobot: https://github.com/pmodels/argobots https://github.com/Qthreads/qthreads The default threading model is pthreads. Alternate thread models are specificed at configure time using the --with-threads=X option. The framework is static. The theading model to use is selected at Open MPI configure/build time. mca/threads: implement Argobots threading layer config: fix thread configury - Add double quotations - Change Argobot to Argobots config: implement Argobots check If the poll time is too long, MPI hangs. This quick fix just sets it to 0, but it is not good for the Pthreads version. Need to find a good way to abstract it. Note that even 1 (= 1 millisecond) causes disastrous performance degradation. rework threads MCA framework configury It now works more like the ompi/mca/rte configury, modulo some edge items that are special for threading package linking, etc. qthreads module some argobots cleanup Signed-off-by: Noah Evans <noah.evans@gmail.com> Signed-off-by: Shintaro Iwasaki <siwasaki@anl.gov> Signed-off-by: Howard Pritchard <howardp@lanl.gov>
134 строки
4.0 KiB
C
134 строки
4.0 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007-2016 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2015 Research Organization for Information Science
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* and Technology (RIST). All rights reserved.
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* Copyright (c) 2019 Sandia National Laboratories. All rights reserved.
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*
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include <errno.h>
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#include <pthread.h>
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#include "opal/mca/threads/mutex.h"
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#include "opal/mca/threads/pthreads/threads_pthreads_mutex.h"
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#include "opal/constants.h"
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/*
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* Wait and see if some upper layer wants to use threads, if support
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* exists.
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*/
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bool opal_uses_threads = false;
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struct opal_pthread_mutex_t {
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opal_object_t super;
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pthread_mutex_t m_lock_pthread;
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opal_atomic_lock_t m_lock_atomic;
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#if OPAL_ENABLE_DEBUG
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int m_lock_debug;
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const char *m_lock_file;
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int m_lock_line;
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#endif
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};
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typedef struct opal_pthread_mutex_t opal_pthread_mutex_t;
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typedef struct opal_pthread_mutex_t opal_pthread_recursive_mutex_t;
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static void mca_threads_pthreads_mutex_constructor(opal_mutex_t *p_mutex)
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{
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pthread_mutex_init(&p_mutex->m_lock_pthread, NULL);
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#if OPAL_ENABLE_DEBUG
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p_mutex->m_lock_debug = 0;
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p_mutex->m_lock_file = NULL;
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p_mutex->m_lock_line = 0;
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#endif
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opal_atomic_lock_init(&p_mutex->m_lock_atomic, 0);
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}
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static void mca_threads_pthreads_mutex_destructor(opal_mutex_t *p_mutex)
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{
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pthread_mutex_destroy(&p_mutex->m_lock_pthread);
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}
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static void mca_threads_pthreads_recursive_mutex_constructor
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(opal_recursive_mutex_t *p_mutex)
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{
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pthread_mutexattr_t mutex_attr;
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pthread_mutexattr_init(&mutex_attr);
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pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
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pthread_mutex_init(&p_mutex->m_lock_pthread, &mutex_attr);
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pthread_mutexattr_destroy(&mutex_attr);
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#if OPAL_ENABLE_DEBUG
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p_mutex->m_lock_debug = 0;
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p_mutex->m_lock_file = NULL;
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p_mutex->m_lock_line = 0;
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#endif
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opal_atomic_lock_init(&p_mutex->m_lock_atomic, 0);
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}
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static void mca_threads_pthreads_recursive_mutex_destructor
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(opal_recursive_mutex_t *p_mutex)
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{
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pthread_mutex_destroy(&p_mutex->m_lock_pthread);
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}
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OBJ_CLASS_INSTANCE(opal_mutex_t,
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opal_object_t,
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mca_threads_pthreads_mutex_constructor,
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mca_threads_pthreads_mutex_destructor);
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OBJ_CLASS_INSTANCE(opal_recursive_mutex_t,
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opal_object_t,
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mca_threads_pthreads_recursive_mutex_constructor,
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mca_threads_pthreads_recursive_mutex_destructor);
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int opal_cond_init(opal_cond_t *cond)
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{
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int ret = pthread_cond_init(cond, NULL);
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return 0 == ret ? OPAL_SUCCESS : OPAL_ERR_IN_ERRNO;
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}
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int opal_cond_wait(opal_cond_t *cond, opal_mutex_t *lock)
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{
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int ret = pthread_cond_wait(cond, &lock->m_lock_pthread);
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return 0 == ret ? OPAL_SUCCESS : OPAL_ERR_IN_ERRNO;
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}
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int opal_cond_broadcast(opal_cond_t *cond)
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{
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int ret = pthread_cond_broadcast(cond);
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return 0 == ret ? OPAL_SUCCESS : OPAL_ERR_IN_ERRNO;
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}
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int opal_cond_signal(opal_cond_t *cond)
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{
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int ret = pthread_cond_signal(cond);
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return 0 == ret ? OPAL_SUCCESS : OPAL_ERR_IN_ERRNO;
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}
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int opal_cond_destroy(opal_cond_t *cond)
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{
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int ret = pthread_cond_destroy(cond);
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return 0 == ret ? OPAL_SUCCESS : OPAL_ERR_IN_ERRNO;
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}
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