user_etype        881 ompi/mca/io/romio321/romio/adio/common/ad_io_coll.c     MPI_Datatype user_etype;
user_etype        903 ompi/mca/io/romio321/romio/adio/common/ad_io_coll.c     user_etype              = fd->etype;
user_etype        968 ompi/mca/io/romio321/romio/adio/common/ad_io_coll.c     fd->etype                     = user_etype;