NAME

       MPI_File_open -  Opens a file

SYNOPSIS

       int MPI_File_open(MPI_Comm comm, ROMIO_CONST 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.  ierr  is  an  integer  and  has  the  same
       meaning  as  the  return  value  of  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 ) are of type INTEGER in Fortran.

                                            2/21/2022                            MPI_File_open(3)