MPI_File_get_byte_offset(3)        Open MPI        MPI_File_get_byte_offset(3)



NAME
       MPI_File_get_byte_offset - Converts a view-relative offset into an
       absolute byte position.


SYNTAX
       C Syntax
           #include <mpi.h>
           int MPI_File_get_byte_offset(MPI_File fh, MPI_Offset offset,
                  MPI_Offset *disp)

       Fortran Syntax (see FORTRAN 77 NOTES)
           INCLUDE 'mpif.h'
           MPI_FILE_GET_BYTE_OFFSET(FH, OFFSET, DISP, IERROR)
                 INTEGER   FH, IERROR
                 INTEGER(KIND=MPI_OFFSET_KIND) OFFSET, DISP


C++ Syntax
       #include <mpi.h>
       MPI::Offset MPI::File::Get_byte_offset(const MPI::Offset disp)
            const


INPUT PARAMETERS
       fh        File handle (handle).

       offset    Offset (integer).


OUTPUT PARAMETERS
       disp      Absolute byte position of offset (integer).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPI_File_get_byte_offset converts an offset specified for the current
       view to its corresponding displacement value, or absolute byte
       position, from the beginning of the file. The absolute byte position of
       offset relative to the current view of fh is returned in disp.


FORTRAN 77 NOTES
       The MPI standard prescribes portable Fortran syntax for the OFFSET and
       DISP arguments only for Fortran 90. Sun FORTRAN 77 users may use the
       non-portable syntax

            INTEGER*MPI_OFFSET_KIND OFFSET
       or
            INTEGER*MPI_OFFSET_KIND DISP

       where MPI_OFFSET_KIND is a constant defined in mpif.h and gives the
       length of the declared integer in bytes.


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.





1.4.1                            Jan 14, 2010      MPI_File_get_byte_offset(3)
