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MPI_File_get_view(3OpenMPI)                                                      MPI_File_get_view(3OpenMPI)



NAME
       MPI_File_get_view - Returns the process's view of data in the file.


SYNTAX
       C Syntax
           #include <mpi.h>
           int MPI_File_get_view(MPI_File fh, MPI_Offset *disp,
                  MPI_Datatype *etype, MPI_Datatype *filetype,
                     char *datarep)

       Fortran Syntax (see FORTRAN 77 NOTES)
           INCLUDE 'mpif.h'
           MPI_FILE_GET_VIEW(FH, DISP, ETYPE,
                   FILETYPE, DATAREP,  IERROR)
             INTEGER FH, ETYPE, FILETYPE, IERROR
             CHARACTER*(*) DATAREP
             INTEGER(KIND=MPI_OFFSET_KIND) DISP


C++ Syntax
       #include <mpi.h>
       void MPI::File::Get_view(MPI::Offset& disp,
            MPI::Datatype& etype,
            MPI::Datatype& filetype, char* datarep) const


INPUT PARAMETER
       fh        File handle (handle).


OUTPUT PARAMETERS
       disp      Displacement (integer).

       etype     Elementary data type (handle).

       filetype  File type (handle). See Restrictions, below.

       datarep   Data representation (string).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       The  MPI_File_get_view routine returns the process's view of the data in the file. The current values
       of the displacement, etype, and filetype are returned in disp, etype, and filetype, respectively.

       The MPI_File_get_view interface allows the user to pass a data-representation string via the  datarep
       argument.


FORTRAN 77 NOTES
       The  MPI standard prescribes portable Fortran syntax for the DISP argument only for Fortran 90.  FOR-TRAN FORTRAN
       TRAN 77 users may use the non-portable syntax.

            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++ 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.




Open MPI 1.2                                   September 2006                    MPI_File_get_view(3OpenMPI)