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

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.