1. Binh-Minh Ribler
  2. hdf5_chunking_query_bmr

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        if(MPI_SUCCESS != (mpi_code=MPI_Send(&msgbuf, 0/*empty msg*/, MPI_CHAR, file->mpi_rank + 1, 0, file->comm)))
 
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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 * Copyright by The HDF Group.                                               *
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 * Copyright by the Board of Trustees of the University of Illinois.         *
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 * All rights reserved.                                                      *
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 *                                                                           *
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 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
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 * terms governing use, modification, and redistribution, is contained in    *
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 * the COPYING file, which can be found at the root of the source code       *
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 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
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 * If you do not have access to either file, you may request a copy from     *
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 * help@hdfgroup.org.                                                        *
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 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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​
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/*
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 * Programmer:  Quincey Koziol <koziol@ncsa.uiuc.edu>
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 *              Friday, January 30, 2004
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 *
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 * Purpose: Common routines for all MPI-based VFL drivers.
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 *
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 */
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​
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​
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#include "H5private.h"      /* Generic Functions            */
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#include "H5Eprivate.h"     /* Error handling           */
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#include "H5Fprivate.h"     /* File access              */
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#include "H5FDprivate.h"    /* File drivers             */
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#include "H5FDmpi.h"            /* Common MPI file driver       */
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#include "H5Pprivate.h"     /* Property lists           */
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​
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#ifdef H5_HAVE_PARALLEL
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​
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•
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/*-------------------------------------------------------------------------
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 * Function:    H5FD_mpi_get_rank
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 *
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 * Purpose: Retrieves the rank of an MPI process.
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 *
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 * Return:  Success:    The rank (non-negative)
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 *
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 *      Failure:    Negative
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 *
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 * Programmer:  Quincey Koziol
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 *              Friday, January 30, 2004
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 *
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 * Modifications:
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 *
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 *-------------------------------------------------------------------------
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 */
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int
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H5FD_mpi_get_rank(const H5FD_t *file)
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{