COLL_APPLY(action, COLL_SCATTER_SIG, ompi_binomial) COLL_sep \
COLL_APPLY(action, COLL_SCATTER_SIG, mpich) COLL_sep \
COLL_APPLY(action, COLL_SCATTER_SIG, mvapich2) COLL_sep \
+COLL_APPLY(action, COLL_SCATTER_SIG, mvapich2_two_level_binomial) COLL_sep \
+COLL_APPLY(action, COLL_SCATTER_SIG, mvapich2_two_level_direct) COLL_sep \
COLL_APPLY(action, COLL_SCATTER_SIG, impi) COLL_sep \
COLL_APPLY(action, COLL_SCATTER_SIG, automatic)