NAME¶
MPI_File_get_position_shared - Returns the current position of the shared
file pointer.
SYNTAX¶
C Syntax
#include <mpi.h>
int MPI_File_get_position_shared(MPI_File fh, MPI_Offset *offset)
Fortran Syntax (see FORTRAN 77 NOTES)¶
INCLUDE 'mpif.h'
MPI_FILE_GET_POSITION_SHARED( FH, OFFSET, IERROR)
INTEGER FH, IERROR
INTEGER(KIND=MPI_OFFSET_KIND) OFFSET
C++ Syntax¶
#include <mpi.h>
MPI::Offset MPI::File::Get_position_shared() const
- fh
- File handle (handle).
OUTPUT PARAMETERS¶
- offset
- Offset of the shared file pointer (integer).
- IERROR
- Fortran only: Error status (integer).
DESCRIPTION¶
MPI_File_get_position_shared returns, in
offset, the current position of
the shared file pointer in
etype units relative to the current
displacement and file type.
FORTRAN 77 NOTES¶
The MPI standard prescribes portable Fortran syntax for the
OFFSET
argument only for Fortran 90. Sun FORTRAN 77 users may use the non-portable
syntax
INTEGER*MPI_OFFSET_KIND OFFSET
where MPI_ADDRESS_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.