MPIFilegetview(3OpenMPI) MPIFilegetview(3OpenMPI)

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


SSYYNNTTAAXX
       C Syntax
           #include 
           int MPIFilegetview(MPIFile fh, MPIOffset *disp,
                  MPIDatatype *etype, MPIDatatype *filetype,
                     char *datarep)

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


CC++++ SSyynnttaaxx
       #include 
       void MPI::File::Getview(MPI::Offset& disp,
            MPI::Datatype& etype,
            MPI::Datatype& filetype, char* datarep) const


IINNPPUUTT PPAARRAAMMEETTEERR
       fh        File handle (handle).


OOUUTTPPUUTT PPAARRAAMMEETTEERRSS
       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 MPIFilegetview 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  MPIFilegetview  interface allows the user to pass a data-repre-
       sentation string via the datarep argument.


FFOORRTTRRAANN 7777 NNOOTTEESS
       The MPI standard prescribes portable Fortran syntax for the DISP  argu-
       ment  only  for  Fortran 90.  FORTRAN 77 users may use the non-portable
       syntax.

            INTEGER*MPIOFFSETKIND DISP

       where MPIOFFSETKIND is a constant defined in  mpif.h  and  gives  the
       length of the declared integer in bytes.


EERRRROORRSS
       Almost  all MPI routines return an error value; C routines as the value
       of the function and Fortran routines in the last  argument.  C++  func-
       tions  do  not  return  errors.  If the default error handler is set to
       MPI::ERRORSTHROWEXCEPTIONS, 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   MPIERRORSRETURN.   The   error   handler  may  be  changed  with
       MPIFileseterrhandler;     the     predefined      error      handler
       MPIERRORSAREFATAL  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     MPIFilegetview(3OpenMPI)