192 строки
6.7 KiB
C
192 строки
6.7 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2008 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) 2004-2005 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) 2011-2016 Los Alamos National Security, LLC. All rights
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* 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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/** @file:
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*
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* The OpenRTE Group Communications
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*
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* The OpenRTE Group Comm framework provides communication services that
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* span entire jobs or collections of processes. It is not intended to be
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* used for point-to-point communications (the RML does that), nor should
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* it be viewed as a high-performance communication channel for large-scale
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* data transfers.
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*/
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#ifndef MCA_GRPCOMM_H
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#define MCA_GRPCOMM_H
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/*
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* includes
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*/
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#include "orte_config.h"
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#include "orte/constants.h"
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#include "orte/types.h"
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#include "orte/mca/mca.h"
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_bitmap.h"
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#include "opal/dss/dss_types.h"
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#include "orte/mca/rml/rml_types.h"
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BEGIN_C_DECLS
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/* define a callback function to be invoked upon
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* collective completion */
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typedef void (*orte_grpcomm_cbfunc_t)(int status, opal_buffer_t *buf, void *cbdata);
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/* Define a collective signature so we don't need to
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* track global collective id's */
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typedef struct {
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opal_object_t super;
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orte_process_name_t *signature;
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size_t sz;
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uint32_t seq_num;
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} orte_grpcomm_signature_t;
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OBJ_CLASS_DECLARATION(orte_grpcomm_signature_t);
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/* Internal component object for tracking ongoing
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* allgather operations */
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typedef struct {
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opal_list_item_t super;
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/* collective's signature */
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orte_grpcomm_signature_t *sig;
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/* collection bucket */
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opal_buffer_t bucket;
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/* participating daemons */
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orte_vpid_t *dmns;
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/** number of participating daemons */
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size_t ndmns;
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/** my index in the dmns array */
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unsigned long my_rank;
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/* number of buckets expected */
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size_t nexpected;
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/* number reported in */
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size_t nreported;
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/* distance masks for receive */
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opal_bitmap_t distance_mask_recv;
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/* received buckets */
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opal_buffer_t ** buffers;
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/* callback function */
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orte_grpcomm_cbfunc_t cbfunc;
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/* user-provided callback data */
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void *cbdata;
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} orte_grpcomm_coll_t;
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OBJ_CLASS_DECLARATION(orte_grpcomm_coll_t);
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/*
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* Component functions - all MUST be provided!
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*/
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/* initialize the selected module */
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typedef int (*orte_grpcomm_base_module_init_fn_t)(void);
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/* finalize the selected module */
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typedef void (*orte_grpcomm_base_module_finalize_fn_t)(void);
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/* Scalably send a message. Caller will provide an array
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* of daemon vpids that are to receive the message. A NULL
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* pointer indicates that all daemons are participating. */
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typedef int (*orte_grpcomm_base_module_xcast_fn_t)(orte_vpid_t *vpids,
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size_t nprocs,
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opal_buffer_t *msg);
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/* allgather - gather data from all specified daemons. Barrier operations
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* will provide a zero-byte buffer. Caller will provide an array
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* of daemon vpids that are participating in the allgather via the
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* orte_grpcomm_coll_t object. A NULL pointer indicates that all daemons
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* are participating.
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*
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* NOTE: this is a non-blocking call. The callback function cached in
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* the orte_grpcomm_coll_t will be invoked upon completion. */
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typedef int (*orte_grpcomm_base_module_allgather_fn_t)(orte_grpcomm_coll_t *coll,
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opal_buffer_t *buf);
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/*
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* Ver 3.0 - internal modules
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*/
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typedef struct {
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orte_grpcomm_base_module_init_fn_t init;
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orte_grpcomm_base_module_finalize_fn_t finalize;
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/* collective operations */
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orte_grpcomm_base_module_xcast_fn_t xcast;
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orte_grpcomm_base_module_allgather_fn_t allgather;
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} orte_grpcomm_base_module_t;
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/* the Public APIs */
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/* Scalably send a message. Caller will provide an array
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* of process names that are to receive the message. A NULL
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* pointer indicates that all known procs are to receive
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* the message. A pointer to a name that includes ORTE_VPID_WILDCARD
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* will send the message to all procs in the specified jobid.
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* The message will be sent to the daemons hosting the specified
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* procs for processing and relay. */
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typedef int (*orte_grpcomm_base_API_xcast_fn_t)(orte_grpcomm_signature_t *sig,
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orte_rml_tag_t tag,
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opal_buffer_t *msg);
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/* allgather - gather data from all specified procs. Barrier operations
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* will provide a zero-byte buffer. Caller will provide an array
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* of application proc vpids that are participating in the allgather. A NULL
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* pointer indicates that all known procs are participating. A pointer
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* to a name that includes ORTE_VPID_WILDCARD indicates that all procs
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* in the specified jobid are contributing.
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*
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* NOTE: this is a non-blocking call. The provided callback function
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* will be invoked upon completion. */
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typedef int (*orte_grpcomm_base_API_allgather_fn_t)(orte_grpcomm_signature_t *sig,
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opal_buffer_t *buf,
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orte_grpcomm_cbfunc_t cbfunc,
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void *cbdata);
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typedef struct {
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/* collective operations */
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orte_grpcomm_base_API_xcast_fn_t xcast;
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orte_grpcomm_base_API_allgather_fn_t allgather;
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} orte_grpcomm_API_module_t;
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/*
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* the standard component data structure
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*/
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struct orte_grpcomm_base_component_3_0_0_t {
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mca_base_component_t base_version;
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mca_base_component_data_t base_data;
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};
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typedef struct orte_grpcomm_base_component_3_0_0_t orte_grpcomm_base_component_3_0_0_t;
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typedef orte_grpcomm_base_component_3_0_0_t orte_grpcomm_base_component_t;
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/*
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* Macro for use in components that are of type grpcomm v3.0.0
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*/
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#define ORTE_GRPCOMM_BASE_VERSION_3_0_0 \
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/* grpcomm v3.0 is chained to MCA v2.0 */ \
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ORTE_MCA_BASE_VERSION_2_1_0("grpcomm", 3, 0, 0)
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/* Global structure for accessing grpcomm functions */
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ORTE_DECLSPEC extern orte_grpcomm_API_module_t orte_grpcomm;
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END_C_DECLS
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#endif
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