107 строки
3.0 KiB
C
107 строки
3.0 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) 2004-2011 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) 2013-2015 Intel, Inc. All rights reserved
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* Copyright (c) 2013-2015 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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/**
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* @file
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*
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* Dynamic Process Management Interface
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*
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*/
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#ifndef OMPI_DPM_H
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#define OMPI_DPM_H
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#include "ompi_config.h"
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#include "ompi/info/info.h"
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#include "ompi/communicator/communicator.h"
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BEGIN_C_DECLS
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/*
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* Initialize the DPM system
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*/
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int ompi_dpm_init(void);
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/*
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* Connect/accept communications
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*/
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int ompi_dpm_connect_accept(ompi_communicator_t *comm, int root,
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const char *port, bool send_first,
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ompi_communicator_t **newcomm);
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/**
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* Executes internally a disconnect on all dynamic communicators
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* in case the user did not disconnect them.
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*/
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int ompi_dpm_disconnect(ompi_communicator_t *comm);
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/*
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* Dynamically spawn processes
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*/
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int ompi_dpm_spawn(int count, char const *array_of_commands[],
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char **array_of_argv[],
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const int array_of_maxprocs[],
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const MPI_Info array_of_info[],
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const char *port_name);
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/*
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* This routine checks, whether an application has been spawned
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* by another MPI application, or has been independently started.
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* If it has been spawned, it establishes the parent communicator.
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* Since the routine has to communicate, it should be among the last
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* steps in MPI_Init, to be sure that everything is already set up.
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*/
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int ompi_dpm_dyn_init(void);
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/*
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* Interface for mpi_finalize to call to ensure dynamically spawned procs
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* collectively finalize
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*/
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int ompi_dpm_dyn_finalize(void);
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/* this routine counts the number of different jobids of the processes
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given in a certain communicator. If there is more than one jobid,
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we mark the communicator as 'dynamic'. This is especially relevant
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for the MPI_Comm_disconnect *and* for MPI_Finalize, where we have
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to wait for all still connected processes.
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*/
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void ompi_dpm_mark_dyncomm(ompi_communicator_t *comm);
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/*
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* Define a rendezvous point for a dynamically spawned job
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*/
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int ompi_dpm_open_port(char *port_name);
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/*
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* Unpublish the rendezvous point
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*/
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int ompi_dpm_close_port(const char *port_name);
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/*
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* Finalize the DPM
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*/
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int ompi_dpm_finalize(void);
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END_C_DECLS
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#endif /* OMPI_DPM_H */
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