17.2.110. MPI_File_get_position_shared

MPI_File_get_position_shared - Returns the current position of the shared file pointer.

17.2.110.1. SYNTAX

17.2.110.1.1. C Syntax

#include <mpi.h>

int MPI_File_get_position_shared(MPI_File fh, MPI_Offset *offset)

17.2.110.1.2. Fortran Syntax (see FORTRAN 77 NOTES)

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_FILE_GET_POSITION_SHARED(FH, OFFSET, IERROR)
     INTEGER FH, IERROR
     INTEGER(KIND=MPI_OFFSET_KIND)   OFFSET

17.2.110.1.3. Fortran 2008 Syntax

USE mpi_f08
MPI_File_get_position_shared(fh, offset, ierror)
     TYPE(MPI_File), INTENT(IN) :: fh
     INTEGER(KIND=MPI_OFFSET_KIND), INTENT(OUT) :: offset
     INTEGER, OPTIONAL, INTENT(OUT) :: ierror

17.2.110.2. INPUT PARAMETER

  • fh: File handle (handle).

17.2.110.3. OUTPUT PARAMETERS

  • offset: Offset of the shared file pointer (integer).

  • IERROR: Fortran only: Error status (integer).

17.2.110.4. 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.

17.2.110.5. 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.

17.2.110.6. ERRORS

Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.

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.