NBC_Reduce_args_compare  630 ompi/mca/coll/libnbc/nbc.c   comminfo->NBC_Dict[NBC_REDUCE] = hb_tree_new((dict_cmp_func)NBC_Reduce_args_compare, NBC_SchedCache_args_delete_key_dummy, NBC_SchedCache_args_delete);
NBC_Reduce_args_compare  234 ompi/mca/coll/libnbc/nbc_internal.h int NBC_Reduce_args_compare(NBC_Reduce_args *a, NBC_Reduce_args *b, void *param);