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MPI_File_get_position_shared - Returns the current position of
the shared file pointer.
C Syntax
#include <mpi.h>
int MPI_File_get_position_shared(MPI_File fh, MPI_Offset *offset)
INCLUDE ’mpif.h’
MPI_FILE_GET_POSITION_SHARED(FH, OFFSET, IERROR)
INTEGER FH, IERROR
INTEGER(KIND=MPI_OFFSET_KIND) OFFSET
#include <mpi.h>
MPI::Offset MPI::File::Get_position_shared() const
- fh
- File handle (handle).
- offset
- Offset
of the shared file pointer (integer).
- IERROR
- Fortran only: Error status
(integer).
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.
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.
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.
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