|
« Return to documentation listing
Table of Contents
MPI_File_get_position - Returns the current position of the individual
file pointer.
C Syntax
#include <mpi.h>
int MPI_File_get_position(MPI_File fh, MPI_Offset *offset)
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_FILE_GET_POSITION(FH, OFFSET, IERROR)
INTEGER FH, IERROR
INTEGER(KIND=MPI_OFFSET_KIND) OFFSET
USE mpi_f08
MPI_File_get_position(fh, offset, ierror)
TYPE(MPI_File), INTENT(IN) :: fh
INTEGER(KIND=MPI_OFFSET_KIND), INTENT(OUT) :: offset
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
- fh
- File handle (handle).
- offset
- Offset
of the individual file pointer (integer).
- IERROR
- Fortran only: Error status
(integer).
MPI_File_get_position returns, in offset, the current
position of the individual 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.
Table of Contents
« Return to documentation listing
|
