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Diffstat (limited to 'src/H5Fmpi.c')
| -rw-r--r-- | src/H5Fmpi.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/H5Fmpi.c b/src/H5Fmpi.c new file mode 100644 index 0000000..c90ad7c --- /dev/null +++ b/src/H5Fmpi.c @@ -0,0 +1,181 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * Copyright by the Board of Trustees of the University of Illinois. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the files COPYING and Copyright.html. COPYING can be found at the root * + * of the source code distribution tree; Copyright.html can be found at the * + * root level of an installed copy of the electronic HDF5 document set and * + * is linked from the top-level documents page. It can also be found at * + * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/*------------------------------------------------------------------------- + * + * Created: H5Fmpi.c + * Jan 10 2008 + * Quincey Koziol <koziol@hdfgroup.org> + * + * Purpose: MPI-related routines. + * + *------------------------------------------------------------------------- + */ + +/****************/ +/* Module Setup */ +/****************/ + +#define H5F_PACKAGE /*suppress error about including H5Fpkg */ + + +/***********/ +/* Headers */ +/***********/ +#include "H5private.h" /* Generic Functions */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Fpkg.h" /* File access */ +#include "H5FDmpi.h" /* MPI-based file drivers */ + + +/****************/ +/* Local Macros */ +/****************/ + + +/******************/ +/* Local Typedefs */ +/******************/ + + +/********************/ +/* Package Typedefs */ +/********************/ + + +/********************/ +/* Local Prototypes */ +/********************/ + + +/*********************/ +/* Package Variables */ +/*********************/ + + +/*****************************/ +/* Library Private Variables */ +/*****************************/ + + +/*******************/ +/* Local Variables */ +/*******************/ + + +#ifdef H5_HAVE_PARALLEL + +/*------------------------------------------------------------------------- + * Function: H5F_mpi_get_rank + * + * Purpose: Retrieves the rank of an MPI process. + * + * Return: Success: The rank (non-negative) + * + * Failure: Negative + * + * Programmer: Quincey Koziol + * Friday, January 30, 2004 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +int +H5F_mpi_get_rank(const H5F_t *f) +{ + int ret_value; + + FUNC_ENTER_NOAPI(H5F_mpi_get_rank, FAIL) + + assert(f && f->shared); + + /* Dispatch to driver */ + if ((ret_value=H5FD_mpi_get_rank(f->shared->lf)) < 0) + HGOTO_ERROR(H5E_VFL, H5E_CANTGET, FAIL, "driver get_rank request failed") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F_mpi_get_rank() */ + + +/*------------------------------------------------------------------------- + * Function: H5F_mpi_get_comm + * + * Purpose: Retrieves the file's communicator + * + * Return: Success: The communicator (non-negative) + * + * Failure: Negative + * + * Programmer: Quincey Koziol + * Friday, January 30, 2004 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +MPI_Comm +H5F_mpi_get_comm(const H5F_t *f) +{ + MPI_Comm ret_value; + + FUNC_ENTER_NOAPI(H5F_mpi_get_comm, MPI_COMM_NULL) + + assert(f && f->shared); + + /* Dispatch to driver */ + if ((ret_value=H5FD_mpi_get_comm(f->shared->lf))==MPI_COMM_NULL) + HGOTO_ERROR(H5E_VFL, H5E_CANTGET, MPI_COMM_NULL, "driver get_comm request failed") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F_mpi_get_comm() */ + + +/*------------------------------------------------------------------------- + * Function: H5F_mpi_get_size + * + * Purpose: Retrieves the size of an MPI process. + * + * Return: Success: The size (positive) + * + * Failure: Negative + * + * Programmer: John Mainzer + * Friday, May 6, 2005 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +int +H5F_mpi_get_size(const H5F_t *f) +{ + int ret_value; + + FUNC_ENTER_NOAPI(H5F_mpi_get_size, FAIL) + + assert(f && f->shared); + + /* Dispatch to driver */ + if ((ret_value=H5FD_mpi_get_size(f->shared->lf)) < 0) + HGOTO_ERROR(H5E_VFL, H5E_CANTGET, FAIL, "driver get_size request failed") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F_mpi_get_size() */ +#endif /* H5_HAVE_PARALLEL */ + |