NAME

       MPI_File_read_at_all_end  - Reads a file at explicitly specified offsets; ending part of a
       split collective routine (blocking).

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_File_read_at_all_end(MPI_File fh, void *buf,
            MPI_Status *status)

Fortran Syntax

       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

       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

C++ Syntax

       #include <mpi.h>
       void MPI::File::Read_at_all_end(void* buf, MPI::Status& status)

       void MPI::File::Read_at_all_end(void* buf)

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

       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.  MPI_File_read_at_all_end blocks
       until the operation initiated by 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

       Almost all MPI routines return an error value; C routines as the value of the function and
       Fortran  routines in the last argument. C++ functions do not return errors. If the default
       error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then  on  error  the  C++  exception
       mechanism will be used to throw an MPI::Exception object.

       Before  the  error value is returned, the current MPI error handler is called. For MPI I/O
       function errors, the default error handler is set to MPI_ERRORS_RETURN. The error  handler
       may    be   changed   with   MPI_File_set_errhandler;   the   predefined   error   handler
       MPI_ERRORS_ARE_FATAL may be used to  make  I/O  errors  fatal.  Note  that  MPI  does  not
       guarantee that an MPI program can continue past an error.