132 строки
4.9 KiB
C
132 строки
4.9 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) 2004-2006 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2014 Los Alamos National Security, LLC. All rights
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* reserved.
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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 "ompi_config.h"
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include "ompi/mca/bml/base/base.h"
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#include "ompi/mca/bml/base/static-components.h"
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#include "opal/mca/btl/base/base.h"
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#include "opal/mca/base/base.h"
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#if OPAL_ENABLE_DEBUG_RELIABILITY
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#include "opal/util/alfg.h"
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#endif /* OPAL_ENABLE_DEBUG_RELIABILITY */
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static int mca_bml_base_register(mca_base_register_flag_t flags);
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static int mca_bml_base_open(mca_base_open_flag_t flags);
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static int mca_bml_base_close(void);
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MCA_BASE_FRAMEWORK_DECLARE(ompi, bml, "BTL Multiplexing Layer", mca_bml_base_register,
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mca_bml_base_open, mca_bml_base_close, mca_bml_base_static_components,
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0);
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#if OPAL_ENABLE_DEBUG_RELIABILITY
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int mca_bml_base_error_rate_floor;
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int mca_bml_base_error_rate_ceiling;
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int mca_bml_base_error_count;
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static bool mca_bml_base_srand;
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opal_rng_buff_t mca_bml_base_rand_buff;
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#endif
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opal_mutex_t mca_bml_lock = OPAL_MUTEX_STATIC_INIT;
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static int mca_bml_base_register(mca_base_register_flag_t flags)
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{
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#if OPAL_ENABLE_DEBUG_RELIABILITY
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do {
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int var_id;
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mca_bml_base_error_rate_floor = 0;
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var_id = mca_base_var_register("ompi", "bml", "base", "error_rate_floor", NULL,
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_bml_base_error_rate_floor);
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(void) mca_base_var_register_synonym(var_id, "ompi", "bml", NULL, "error_rate_floor",
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MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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mca_bml_base_error_rate_ceiling = 0;
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var_id = mca_base_var_register("ompi", "bml", "base", "error_rate_ceiling", NULL,
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_bml_base_error_rate_ceiling);
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(void) mca_base_var_register_synonym(var_id, "ompi", "bml", NULL, "error_rate_ceiling",
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MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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mca_bml_base_srand = true;
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var_id = mca_base_var_register("ompi", "bml", "base", "srand", NULL,
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_bml_base_srand);
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(void) mca_base_var_register_synonym(var_id, "ompi", "bml", NULL, "srand",
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MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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} while (0);
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#endif
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return OMPI_SUCCESS;
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}
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static int mca_bml_base_open(mca_base_open_flag_t flags)
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{
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int ret;
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if(OMPI_SUCCESS !=
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(ret = mca_base_framework_components_open(&ompi_bml_base_framework, flags))) {
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return ret;
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}
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#if OPAL_ENABLE_DEBUG_RELIABILITY
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/* seed random number generator */
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struct timeval tv;
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gettimeofday(&tv, NULL);
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opal_srand(&mca_bml_base_rand_buff,(uint32_t)(getpid() * tv.tv_usec));
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/* initialize count */
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if(mca_bml_base_error_rate_ceiling > 0
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&& mca_bml_base_error_rate_floor <= mca_bml_base_error_rate_ceiling) {
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mca_bml_base_error_count = (int) (((double) mca_bml_base_error_rate_ceiling *
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opal_rand(&mca_bml_base_rand_buff))/(UINT32_MAX+1.0));
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}
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#endif
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return mca_base_framework_open(&opal_btl_base_framework, 0);
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}
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static int mca_bml_base_close( void )
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{
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int ret;
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/* close any open components (including the selected one) */
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ret = mca_base_framework_components_close(&ompi_bml_base_framework, NULL);
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if (OMPI_SUCCESS != ret) {
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return ret;
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}
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return mca_base_framework_close(&opal_btl_base_framework);
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}
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