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.
82 строки
3.0 KiB
C
82 строки
3.0 KiB
C
/*
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* Copyright (c) 2013 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) 2013 Inria. 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 OPAL_PROC_H
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#define OPAL_PROC_H
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#include "opal_config.h"
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#include "opal/class/opal_list.h"
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#include "opal/mca/hwloc/hwloc.h"
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#include "opal/dss/dss.h"
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/**
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* This is a transparent handle proposed to the upper layer as a mean
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* to store whatever information it needs in order to efficiently
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* retrieve the RTE process naming scheme, and get access to the RTE
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* information associated with it. The only direct usage of this type
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* is to be copied from one structure to another, otherwise it should
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* only be used via the accessors defined below.
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*/
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typedef opal_identifier_t opal_process_name_t;
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#define OPAL_PROCESS_NAME_NTOH(guid)
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#define OPAL_PROCESS_NAME_HTON(guid)
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typedef struct opal_proc_t {
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/** allow proc to be placed on a list */
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opal_list_item_t super;
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/** this process' name */
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opal_process_name_t proc_name;
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/** architecture of this process */
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uint32_t proc_arch;
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/** flags for this proc */
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opal_hwloc_locality_t proc_flags;
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/** Base convertor for the proc described by this process */
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struct opal_convertor_t* proc_convertor;
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/** A pointer to the name of this host - data is
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* actually stored outside of this framework. */
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char* proc_hostname;
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} opal_proc_t;
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OBJ_CLASS_DECLARATION(opal_proc_t);
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OPAL_DECLSPEC extern opal_proc_t* opal_proc_local_get(void);
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OPAL_DECLSPEC extern int opal_proc_local_set(opal_proc_t* proc);
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/**
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* Compare two processor name and return an integer greater than,
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* equal to, or less than 0, according as the proc_name of proc1
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* is greater than, equal to, or less than the proc_name of proc2.
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*/
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typedef int (*opal_compare_proc_fct_t)(const opal_process_name_t, const opal_process_name_t);
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OPAL_DECLSPEC extern opal_compare_proc_fct_t opal_compare_proc;
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OPAL_DECLSPEC extern char* (*opal_process_name_print)(const opal_process_name_t);
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OPAL_DECLSPEC extern int32_t (*opal_process_name_vpid)(const opal_process_name_t);
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OPAL_DECLSPEC extern int32_t (*opal_process_name_jobid)(const opal_process_name_t);
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#define OPAL_NAME_PRINT(OPAL_PN) opal_process_name_print(OPAL_PN)
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#define OPAL_PROC_MY_NAME (opal_proc_local_get()->proc_name)
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#define OPAL_PROC_MY_HOSTNAME (opal_proc_local_get()->proc_hostname)
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/**
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* Access to the modex.
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*/
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OPAL_DECLSPEC extern int
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(*opal_modex_send)(const mca_base_component_t *source_component,
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const void *data, size_t size);
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OPAL_DECLSPEC extern int
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(*opal_modex_recv)(const mca_base_component_t *component,
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const opal_proc_t *proc,
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void **buffer, size_t *size);
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#endif /* OPAL_PROC_H */
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