b6c6d9a2b7
r10877: add warm up connection option.. of course this only warms up the first eager btl but this should be adequate for now.. r10881: Consulted with Galen and did a few things: - Fix the algorithm to actually make the connections that we want - Rename the MCA param to mpi_preconnect_all - Cleanup the code a bit: - move the logic to a separate .c file - check return codes properly This commit was SVN r11114. The following SVN revisions from the original message are invalid or inconsistent and therefore were not cross-referenced: r10877 r10877 r10881 r10881
119 строки
3.7 KiB
C
119 строки
3.7 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) 2004-2005 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) 2006 Cisco Systems, Inc. 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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* Interface into the MPI portion of the Open MPI Run Time Environment
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*/
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#ifndef OMPI_MPI_MPIRUNTIME_H
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#define OMPI_MPI_MPIRUNTIME_H
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#include "ompi_config.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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/** forward type declaration */
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struct ompi_communicator_t;
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/** forward type declaration */
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struct opal_thread_t;
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/* Global variables and symbols for the MPI layer */
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/** Is mpi initialized? */
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OMPI_DECLSPEC extern bool ompi_mpi_initialized;
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/** Has mpi been finalized? */
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OMPI_DECLSPEC extern bool ompi_mpi_finalized;
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/** Do we have multiple threads? */
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OMPI_DECLSPEC extern bool ompi_mpi_thread_multiple;
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/** Thread level requested to \c MPI_Init_thread() */
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OMPI_DECLSPEC extern int ompi_mpi_thread_requested;
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/** Thread level provided by Open MPI */
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OMPI_DECLSPEC extern int ompi_mpi_thread_provided;
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/** Identifier of the main thread */
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OMPI_DECLSPEC extern struct opal_thread_t *ompi_mpi_main_thread;
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/** Did we setup maffinity in MPI_INIT (and therefore need to shut
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it down during MPI_FINALIZE)? */
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OMPI_DECLSPEC extern bool ompi_mpi_maffinity_setup;
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/**
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* Initialize the Open MPI MPI environment
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*
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* @param argc argc, typically from main() (IN)
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* @param argv argv, typically from main() (IN)
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* @param requested Thread support that is requested (IN)
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* @param provided Thread support that is provided (OUT)
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*
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* @returns MPI_SUCCESS if successful
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* @returns Error code if unsuccessful
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*
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* Intialize all support code needed for MPI applications. This
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* function should only be called by MPI applications (including
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* singletons). If this function is called, ompi_init() and
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* ompi_rte_init() should *not* be called.
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*
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* It is permissable to pass in (0, NULL) for (argc, argv).
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*/
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int ompi_mpi_init(int argc, char **argv, int requested, int *provided);
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/**
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* Setup I/O forwarding during MPI_Init through the I/O forwarding
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* framework.
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*/
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int ompi_mpi_init_io(void);
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/**
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* Finalize the Open MPI MPI environment
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*
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* @returns MPI_SUCCESS if successful
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* @returns Error code if unsuccessful
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*
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* Should be called after all MPI functionality is complete (usually
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* during MPI_FINALIZE).
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*/
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int ompi_mpi_finalize(void);
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/**
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* Abort the processes of comm
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*/
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int ompi_mpi_abort(struct ompi_communicator_t* comm,
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int errcode, bool kill_remote_of_intercomm);
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/**
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* Wait for a TotalView-like debugger if asked.
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*/
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void ompi_mpi_wait_for_totalview(void);
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/**
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* Do a preconnect of MPI connections (i.e., force connections to
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* be made if they will be made).
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*/
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int ompi_init_do_preconnect(void);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif /* OMPI_MPI_MPIRUNTIME_H */
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