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.

                                                    2/8/2024                                    MPI_File_open(3)