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.
114 строки
3.0 KiB
C
114 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) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010-2012 Los Alamos National Security, LLC.
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* 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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/**
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* @file
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*/
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#ifndef MCA_MPOOL_SM_H
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#define MCA_MPOOL_SM_H
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#include "opal_config.h"
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#include "opal/mca/event/event.h"
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#include "opal/mca/shmem/shmem.h"
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#include "opal/mca/common/sm/common_sm.h"
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#include "opal/mca/mpool/mpool.h"
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#include "opal/mca/allocator/allocator.h"
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BEGIN_C_DECLS
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struct mca_mpool_sm_component_t {
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mca_mpool_base_component_t super;
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/* mca_allocator_base_module_t* sm_allocator; */
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char *sm_allocator_name;
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int verbose;
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/* struct mca_mpool_sm_mmap_t *sm_mmap; */
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};
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typedef struct mca_mpool_sm_component_t mca_mpool_sm_component_t;
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typedef struct mca_mpool_base_resources_t {
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size_t size;
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int32_t mem_node;
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/* backing store metadata */
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opal_shmem_ds_t bs_meta_buf;
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} mca_mpool_base_resources_t;
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OPAL_MODULE_DECLSPEC extern mca_mpool_sm_component_t mca_mpool_sm_component;
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typedef struct mca_mpool_sm_module_t {
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mca_mpool_base_module_t super;
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long sm_size;
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mca_allocator_base_module_t *sm_allocator;
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struct mca_mpool_sm_mmap_t *sm_mmap;
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mca_common_sm_module_t *sm_common_module;
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int32_t mem_node;
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} mca_mpool_sm_module_t;
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/*
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* Initializes the mpool module.
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*/
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void mca_mpool_sm_module_init(mca_mpool_sm_module_t* mpool);
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/*
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* Returns base address of shared memory mapping.
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*/
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void* mca_mpool_sm_base(mca_mpool_base_module_t*);
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/**
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* Allocate block of shared memory.
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*/
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void* mca_mpool_sm_alloc(
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mca_mpool_base_module_t* mpool,
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size_t size,
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size_t align,
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uint32_t flags,
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mca_mpool_base_registration_t** registration);
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/**
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* realloc function typedef
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*/
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void* mca_mpool_sm_realloc(
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mca_mpool_base_module_t* mpool,
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void* addr,
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size_t size,
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mca_mpool_base_registration_t** registration);
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/**
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* free function typedef
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*/
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void mca_mpool_sm_free(
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mca_mpool_base_module_t* mpool,
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void * addr,
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mca_mpool_base_registration_t* registration);
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/**
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* Fault Tolerance Event Notification Function
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* @param state Checkpoint Stae
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* @return OPAL_SUCCESS or failure status
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*/
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int mca_mpool_sm_ft_event(int state);
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END_C_DECLS
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#endif
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