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.. _mpi_file_read_at_all_end:
MPI_File_read_at_all_end
========================
.. include_body
:ref:`MPI_File_read_at_all_end` |mdash| Reads a file at explicitly specified
offsets; ending part of a split collective routine (blocking).
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_File_read_at_all_end(MPI_File fh, void *buf,
MPI_Status *status)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_FILE_READ_AT_ALL_END(FH, BUF, STATUS, IERROR)
<type> BUF(*)
INTEGER FH, STATUS(MPI_STATUS_SIZE), IERROR
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_File_read_at_all_end(fh, buf, status, ierror)
TYPE(MPI_File), INTENT(IN) :: fh
TYPE(*), DIMENSION(..), ASYNCHRONOUS :: buf
TYPE(MPI_Status) :: status
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETER
---------------
* ``fh``: File handle (handle).
OUTPUT PARAMETERS
-----------------
* ``buf``: Initial address of buffer (choice).
* ``status``: Status object (status).
* ``ierror``: Fortran only: Error status (integer).
DESCRIPTION
-----------
:ref:`MPI_File_read_at_all_end` is a split collective routine that stores the
number of elements actually read from the file associated with *fh* in
*status.* :ref:`MPI_File_read_at_all_end` blocks until the operation initiated
by :ref:`MPI_File_read_at_all_begin` completes. The data is taken out of those
parts of the file specified by the current view. All other fields of
*status* are undefined.
NOTES
-----
All the nonblocking collective routines for data access are "split" into
two routines, each with ``_begin`` or ``_end`` as a suffix. These split
collective routines are subject to the semantic rules described in
Section 9.4.5 of the MPI-2 standard.
ERRORS
------
.. include:: ./ERRORS.rst
|
