NAME
       MPI_File_open -  Opens a file
SYNOPSIS
       #include "mpi.h"
       int MPI_File_open(MPI_Comm comm, char *filename, int amode,
                         MPI_Info info, MPI_File *fh)
INPUT PARAMETERS
       comm   - communicator (handle)
       filename
              - name of file to open (string)
       amode  - file access mode (integer)
       info   - info object (handle)
OUTPUT PARAMETERS
       fh     - file handle (handle)
NOTES FOR FORTRAN
       All  MPI  routines  in Fortran (except for 'MPI_WTIME' and 'MPI_WTICK')
       have an additional argument 'ierr' at the end  of  the  argument  list.
       the  routine  in  C.   In Fortran, MPI routines are subroutines and are
       invoked with the 'call' statement.
       All MPI objects (e.g., 'MPI_Datatype', 'MPI_Comm', 'MPI_File')  are  of
       type 'INTEGER' in Fortran.
                                   3/4/1999                   MPI_File_open(3)