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.
95 строки
3.0 KiB
C
95 строки
3.0 KiB
C
/*
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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) 2004-2006 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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* $COPYRIGHT$
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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 "opal/mca/event/event.h"
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#include "opal/mca/btl/base/base.h"
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#include "ompi/mca/bml/bml.h"
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#include "bml_r2.h"
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#include "mpi.h"
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static int mca_bml_r2_component_register(void);
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mca_bml_base_component_2_0_0_t mca_bml_r2_component = {
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/* First, the mca_base_component_t struct containing meta
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information about the component itself */
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{
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MCA_BML_BASE_VERSION_2_0_0,
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"r2", /* MCA component name */
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OMPI_MAJOR_VERSION, /* MCA component major version */
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OMPI_MINOR_VERSION, /* MCA component minor version */
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OMPI_RELEASE_VERSION, /* MCA component release version */
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mca_bml_r2_component_open, /* component open */
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mca_bml_r2_component_close, /* component close */
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NULL,
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mca_bml_r2_component_register
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},
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{
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/* The component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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},
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mca_bml_r2_component_init
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};
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static int mca_bml_r2_component_register(void)
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{
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mca_bml_r2.show_unreach_errors = true;
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(void) mca_base_component_var_register(&mca_bml_r2_component.bml_version,
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"show_unreach_errors",
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"Show error message when procs are unreachable",
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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_r2.show_unreach_errors);
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return OMPI_SUCCESS;
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}
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int mca_bml_r2_component_open(void)
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{
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return OMPI_SUCCESS;
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}
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int mca_bml_r2_component_close(void)
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{
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/* OBJ_DESTRUCT(&mca_bml_r2.lock); */
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return OMPI_SUCCESS;
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}
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mca_bml_base_module_t* mca_bml_r2_component_init( int* priority,
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bool enable_progress_threads,
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bool enable_mpi_threads )
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{
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/* initialize BTLs */
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if(OMPI_SUCCESS != mca_btl_base_select(enable_progress_threads,enable_mpi_threads))
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return NULL;
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*priority = 100;
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mca_bml_r2.btls_added = false;
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return &mca_bml_r2.super;
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}
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