ompi_coll_base_reduce_scatter_intra_butterfly  278 ompi/mca/coll/base/coll_base_functions.h int ompi_coll_base_reduce_scatter_intra_butterfly(REDUCESCATTER_ARGS);
ompi_coll_base_reduce_scatter_intra_butterfly  143 ompi/mca/coll/tuned/coll_tuned_reduce_scatter_decision.c     case (4): return ompi_coll_base_reduce_scatter_intra_butterfly(sbuf, rbuf, rcounts,