a14e0f10d4
mca_btl_base_segment_t and replace them with des_local and des_remote This change also updates the BTL version to 3.0.0. This commit does not represent the final version of BTL 3.0.0. More changes are coming. In making this change I updated all of the BTLs as well as BTL user's to use the new structure members. Please evaluate your component to ensure the changes are correct. RFC text: This is the first of several BTL interface changes I am proposing for the 1.9/2.0 release series. What: Change naming of btl descriptor members. I propose we change des_src and des_dst (and their associated counts) to be des_local and des_remote. For receive callbacks the des_local member will be used to communicate the segment information to the callback. The proposed change will include updating all of the doxygen in btl.h as well as updating all BTLs and BTL users to use the new naming scheme. Why: My btl usage makes use of both put and get operations on the same descriptor. With the current naming scheme I need to ensure that there is consistency beteen the segments described in des_src and des_dst depending on whether a put or get operation is executed. Additionally, the current naming prevents BTLs that do not require prepare/RMA matched operations (do not set MCA_BTL_FLAGS_RDMA_MATCHED) from executing multiple simultaneous put AND get operations. At the moment the descriptor can only be used with one or the other. The naming change makes it easier for BTL users to setup/modify descriptors for RMA operations as the local segment and remote segment are always in the same member field. The only issue I forsee with this change is that it will require a little more work to move BTL fixes to the 1.8 release series. This commit was SVN r32196.
192 строки
7.6 KiB
C
192 строки
7.6 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2007 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) 2004-2006 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) 2010 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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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif /* HAVE_STRING_H */
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif /* HAVE_SYS_TYPES_H */
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#include "ompi/constants.h"
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#include "opal/runtime/opal.h"
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#include "opal/mca/event/event.h"
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#include "btl_self.h"
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#include "btl_self_frag.h"
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static int mca_btl_self_component_register(void);
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/*
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* Shared Memory (SELF) component instance.
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*/
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mca_btl_self_component_t mca_btl_self_component = {
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.super = {
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/* First, the mca_base_component_t struct containing meta information
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about the component itself */
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.btl_version = {
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MCA_BTL_DEFAULT_VERSION("self"),
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.mca_open_component = mca_btl_self_component_open,
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.mca_close_component = mca_btl_self_component_close,
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.mca_register_component_params = mca_btl_self_component_register,
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},
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.btl_data = {
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/* The component is checkpoint ready */
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.param_field = MCA_BASE_METADATA_PARAM_CHECKPOINT,
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},
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.btl_init = mca_btl_self_component_init,
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} /* end super */
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};
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/*
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* Called by MCA framework to open the component, registers
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* component parameters.
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*/
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static int mca_btl_self_component_register(void)
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{
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mca_base_var_group_component_register(&mca_btl_self_component.super.btl_version,
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"BTL for self communication");
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/* register SELF component parameters */
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mca_btl_self_component.free_list_num = 0;
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(void) mca_base_component_var_register(&mca_btl_self_component.super.btl_version, "free_list_num",
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"Number of fragments by default",
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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_btl_self_component.free_list_num);
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mca_btl_self_component.free_list_max = -1;
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(void) mca_base_component_var_register(&mca_btl_self_component.super.btl_version, "free_list_max",
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"Maximum number of fragments",
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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_btl_self_component.free_list_max);
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mca_btl_self_component.free_list_inc = 32;
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(void) mca_base_component_var_register(&mca_btl_self_component.super.btl_version, "free_list_inc",
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"Increment by this number of fragments",
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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_btl_self_component.free_list_inc);
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mca_btl_self.btl_exclusivity = MCA_BTL_EXCLUSIVITY_HIGH;
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mca_btl_self.btl_eager_limit = 128 * 1024;
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mca_btl_self.btl_rndv_eager_limit = 128 * 1024;
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mca_btl_self.btl_max_send_size = 256 * 1024;
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mca_btl_self.btl_rdma_pipeline_send_length = INT_MAX;
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mca_btl_self.btl_rdma_pipeline_frag_size = INT_MAX;
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mca_btl_self.btl_min_rdma_pipeline_size = 0;
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mca_btl_self.btl_flags = MCA_BTL_FLAGS_PUT | MCA_BTL_FLAGS_SEND_INPLACE;
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mca_btl_self.btl_seg_size = sizeof (mca_btl_base_segment_t);
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mca_btl_self.btl_bandwidth = 100;
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mca_btl_self.btl_latency = 0;
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mca_btl_base_param_register(&mca_btl_self_component.super.btl_version,
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&mca_btl_self);
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return OMPI_SUCCESS;
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}
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int mca_btl_self_component_open(void)
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{
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/* initialize objects */
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OBJ_CONSTRUCT(&mca_btl_self_component.self_lock, opal_mutex_t);
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OBJ_CONSTRUCT(&mca_btl_self_component.self_frags_eager, ompi_free_list_t);
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OBJ_CONSTRUCT(&mca_btl_self_component.self_frags_send, ompi_free_list_t);
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OBJ_CONSTRUCT(&mca_btl_self_component.self_frags_rdma, ompi_free_list_t);
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return OMPI_SUCCESS;
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}
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/*
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* component cleanup - sanity checking of queue lengths
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*/
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int mca_btl_self_component_close(void)
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{
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OBJ_DESTRUCT(&mca_btl_self_component.self_lock);
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OBJ_DESTRUCT(&mca_btl_self_component.self_frags_eager);
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OBJ_DESTRUCT(&mca_btl_self_component.self_frags_send);
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OBJ_DESTRUCT(&mca_btl_self_component.self_frags_rdma);
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return OMPI_SUCCESS;
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}
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/*
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* SELF component initialization
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*/
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mca_btl_base_module_t** mca_btl_self_component_init( int *num_btls,
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bool enable_progress_threads,
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bool enable_mpi_threads )
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{
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mca_btl_base_module_t **btls = NULL;
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*num_btls = 0;
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/* allocate the Shared Memory PTL */
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*num_btls = 1;
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btls = (mca_btl_base_module_t**)malloc((*num_btls)*sizeof(mca_btl_base_module_t*));
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if (NULL == btls) {
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return NULL;
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}
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/* initialize free lists */
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ompi_free_list_init_new( &mca_btl_self_component.self_frags_eager,
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sizeof(mca_btl_self_frag_eager_t) + mca_btl_self.btl_eager_limit,
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opal_cache_line_size,
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OBJ_CLASS(mca_btl_self_frag_eager_t),
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0,opal_cache_line_size,
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mca_btl_self_component.free_list_num,
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mca_btl_self_component.free_list_max,
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mca_btl_self_component.free_list_inc,
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NULL );
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ompi_free_list_init_new( &mca_btl_self_component.self_frags_send,
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sizeof(mca_btl_self_frag_send_t) + mca_btl_self.btl_max_send_size,
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opal_cache_line_size,
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OBJ_CLASS(mca_btl_self_frag_send_t),
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0,opal_cache_line_size,
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mca_btl_self_component.free_list_num,
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mca_btl_self_component.free_list_max,
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mca_btl_self_component.free_list_inc,
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NULL );
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ompi_free_list_init_new( &mca_btl_self_component.self_frags_rdma,
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sizeof(mca_btl_self_frag_rdma_t),
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opal_cache_line_size,
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OBJ_CLASS(mca_btl_self_frag_rdma_t),
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0,opal_cache_line_size,
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mca_btl_self_component.free_list_num,
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mca_btl_self_component.free_list_max,
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mca_btl_self_component.free_list_inc,
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NULL );
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/* get pointer to the btls */
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btls[0] = (mca_btl_base_module_t *)(&mca_btl_self);
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return btls;
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}
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