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.
73 строки
2.1 KiB
C
73 строки
2.1 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) 2004-2007 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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* $COPYRIGHT$
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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_BTL_TCP_ADDR_H
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#define MCA_BTL_TCP_ADDR_H
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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/**
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* Structure used to publish TCP connection information to peers.
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*/
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struct mca_btl_tcp_addr_t {
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/* the following information is exchanged between different
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machines (read: byte order), so use network byte order
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for everything and don't add padding
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*/
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#if OPAL_ENABLE_IPV6
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struct in6_addr addr_inet; /**< IPv4/IPv6 listen address > */
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#else
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/* Bug, FIXME: needs testing */
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struct my_in6_addr {
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union {
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uint32_t u6_addr32[4];
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struct _my_in6_addr {
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struct in_addr _addr_inet;
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uint32_t _pad[3];
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} _addr__inet;
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} _union_inet;
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} addr_inet;
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#endif
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in_port_t addr_port; /**< listen port */
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uint16_t addr_ifkindex; /**< remote interface index assigned with
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this address */
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unsigned short addr_inuse; /**< local meaning only */
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uint8_t addr_family; /**< AF_INET or AF_INET6 */
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};
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typedef struct mca_btl_tcp_addr_t mca_btl_tcp_addr_t;
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#define MCA_BTL_TCP_AF_INET 0
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#if OPAL_ENABLE_IPV6
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# define MCA_BTL_TCP_AF_INET6 1
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#endif
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#endif
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