552c9ca5a0
WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic. This commit was SVN r32317.
157 строки
5.9 KiB
C
157 строки
5.9 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) 2004-2005 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) 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 "opal_config.h"
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#include "opal/constants.h"
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#include "opal/mca/event/event.h"
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#include "opal/mca/btl/btl.h"
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#include "opal/mca/mpool/base/base.h"
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#include "opal/mca/btl/base/base.h"
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#include "btl_template.h"
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#include "btl_template_frag.h"
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#include "btl_template_endpoint.h"
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/**
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* Register any MCA parameters associated with this component
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*/
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static int mca_btl_template_component_register(void);
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/**
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* Make initial determination whether this component can run or not
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*/
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static int mca_btl_template_component_open(void);
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/**
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* Any final cleanup before being unloaded.
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*/
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static int mca_btl_template_component_close(void);
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mca_btl_template_component_t mca_btl_template_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("template"),
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.mca_open_component = mca_btl_template_component_open,
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.mca_close_component = mca_btl_template_component_close,
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.mca_register_component_params = mca_btl_template_component_register,
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},
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.btl_data = {
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/* The component is not checkpoint ready */
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.param_field = MCA_BASE_METADATA_PARAM_NONE
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},
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.btl_init = mca_btl_template_component_init,
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.btl_progress = mca_btl_template_component_progress,
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}
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};
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static int mca_btl_template_component_open(void)
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{
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return OPAL_SUCCESS;
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}
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static int mca_btl_template_component_register(void)
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{
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/* initialize state */
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mca_btl_template_component.template_num_btls=0;
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mca_btl_template_component.template_btls=NULL;
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/* initialize objects */
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OBJ_CONSTRUCT(&mca_btl_template_component.template_procs, opal_list_t);
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/* register TEMPLATE component parameters */
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mca_btl_template_component.template_free_list_num = 8;
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(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
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"free_list_num", NULL, MCA_BASE_VAR_TYPE_INT,
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NULL, 0, 0, OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_btl_template_component.template_free_list_num);
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(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
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"free_list_max", NULL, MCA_BASE_VAR_TYPE_INT,
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NULL, 0, 0, OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_btl_template_component.template_free_list_max);
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(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
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"free_list_inc", NULL, MCA_BASE_VAR_TYPE_INT,
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NULL, 0, 0, OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_btl_template_component.template_free_list_inc);
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mca_btl_template_component.template_mpool_name = "grdma";
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(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
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"mpool", NULL, MCA_BASE_VAR_TYPE_STRING,
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NULL, 0, 0, OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_btl_template_component.template_mpool_name);
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mca_btl_template_module.super.btl_exclusivity = 0;
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mca_btl_template_module.super.btl_eager_limit = 64*1024;
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mca_btl_template_module.super.btl_rndv_eager_limit = 64*1024;
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mca_btl_template_module.super.btl_max_send_size = 128*1024;
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mca_btl_template_module.super.btl_min_rdma_pipeline_size = 1024*1024;
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mca_btl_template_module.super.btl_rdma_pipeline_frag_size = 1024*1024;
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mca_btl_template_module.super.btl_rdma_pipeline_send_length = 1024*1024;
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mca_btl_template_module.super.btl_flags = MCA_BTL_FLAGS_PUT;
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return mca_btl_base_param_register(&mca_btl_template_component.super.btl_version,
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&mca_btl_template_module.super);
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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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static int mca_btl_template_component_close(void)
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{
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return OPAL_SUCCESS;
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}
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/*
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* TEMPLATE component initialization:
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* (1) read interface list from kernel and compare against component parameters
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* then create a BTL instance for selected interfaces
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* (2) setup TEMPLATE listen socket for incoming connection attempts
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* (3) register BTL parameters with the MCA
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*/
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mca_btl_base_module_t** mca_btl_template_component_init(int *num_btl_modules,
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bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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return NULL;
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}
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/*
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* TEMPLATE component progress.
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*/
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int mca_btl_template_component_progress()
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{
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return 0;
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}
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