195c892a9d
MPI_Comm_idup. As part of this work I implemented a basic request scheduler in ompi/comm/comm_request.c. This scheduler might be useful for more than just communicator requests and could be moved to ompi/request if there is a demand. Otherwise I will leave it where it is. Added a non-blocking version of ompi_comm_set to support ompi_comm_idup. The call makes a recursive call to comm_dup and a non-blocking version was needed. To simplify the code the blocking version calls the nonblocking version and waits on the resulting request if one exists. cmr=v1.7.4:reviewer=jsquyres:ticket=trac:3796 This commit was SVN r29334. The following Trac tickets were found above: Ticket 3796 --> https://svn.open-mpi.org/trac/ompi/ticket/3796
41 строка
1.2 KiB
C
41 строка
1.2 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* reseved.
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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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#if !defined(OMPI_COMM_REQ_H)
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#define OMPI_COMM_REQ_H
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_free_list.h"
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#include "ompi/request/request.h"
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/* increase this number if more subrequests are needed */
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#define OMPI_COMM_REQUEST_MAX_SUBREQ 2
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typedef struct ompi_comm_request_t {
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ompi_request_t super;
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void *context;
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opal_list_t schedule;
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} ompi_comm_request_t;
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OBJ_CLASS_DECLARATION(ompi_comm_request_t);
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typedef int (*ompi_comm_request_callback_fn_t) (ompi_comm_request_t *);
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void ompi_comm_request_init (void);
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void ompi_comm_request_fini (void);
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int ompi_comm_request_schedule_append (ompi_comm_request_t *request, ompi_comm_request_callback_fn_t callback,
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ompi_request_t *subreqs[], int subreq_count);
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void ompi_comm_request_start (ompi_comm_request_t *request);
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ompi_comm_request_t *ompi_comm_request_get (void);
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void ompi_comm_request_return (ompi_comm_request_t *request);
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#endif /* OMPI_COMM_REQ_H */
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