MPI_File_get_byte_offset(3OpenMPI) MPI_File_get_byte_offset(3OpenMPI)
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 posi-
tion, 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++ func-
tions 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.
Open MPI 1.2 September 2006 MPI_File_get_byte_offset(3OpenMPI)
Mac OS X 10.6 - Generated Thu Sep 17 20:12:58 CDT 2009