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.
97 строки
2.8 KiB
C
97 строки
2.8 KiB
C
/*
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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) 2004-2006 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) 2007 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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#ifndef MCA_MPOOL_BASE_TREE_H
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#define MCA_MPOOL_BASE_TREE_H
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#include "opal_config.h"
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#define MCA_MPOOL_BASE_TREE_MAX 8
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#include "opal/mca/mca.h"
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#include "opal/class/ompi_free_list.h"
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#include "opal/mca/mpool/mpool.h"
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BEGIN_C_DECLS
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/*
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* Data structures for the tree of allocated memory
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* used for MPI_Alloc_mem and MPI_Free_mem
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*/
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/**
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* The item in the tree itself
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*/
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struct mca_mpool_base_tree_item_t
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{
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ompi_free_list_item_t super; /**< the parent class */
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void* key; /**< the address this was alloc'd on */
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size_t num_bytes; /**< the number of bytes in this alloc, only for
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debugging reporting with
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mpi_show_mpi_alloc_mem_leaks */
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mca_mpool_base_module_t* mpools[MCA_MPOOL_BASE_TREE_MAX]; /**< the mpools */
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mca_mpool_base_registration_t* regs[MCA_MPOOL_BASE_TREE_MAX]; /**< the registrations */
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uint8_t count; /**< length of the mpools/regs array */
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};
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typedef struct mca_mpool_base_tree_item_t mca_mpool_base_tree_item_t;
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OPAL_DECLSPEC OBJ_CLASS_DECLARATION(mca_mpool_base_tree_item_t);
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/*
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* initialize/finalize the rb tree
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*/
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int mca_mpool_base_tree_init(void);
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int mca_mpool_base_tree_fini(void);
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/*
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* insert an item in the rb tree
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*/
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int mca_mpool_base_tree_insert(mca_mpool_base_tree_item_t* item);
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/*
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* remove an item from the rb tree
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*/
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int mca_mpool_base_tree_delete(mca_mpool_base_tree_item_t* item);
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/**
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* find the item in the rb tree
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*/
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mca_mpool_base_tree_item_t* mca_mpool_base_tree_find(void* base);
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/*
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* get a tree item from the free list
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*/
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mca_mpool_base_tree_item_t* mca_mpool_base_tree_item_get(void);
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/*
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* put tree item back into the free list
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*/
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void mca_mpool_base_tree_item_put(mca_mpool_base_tree_item_t* item);
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/*
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* For debugging, print a show_help kind of message if there are items
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* left in the tree. The argument is the number of items to be printed
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* before becoming silent.
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*/
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void mca_mpool_base_tree_print(int);
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END_C_DECLS
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#endif /* MCA_MPOOL_BASE_TREE_H */
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