Merge pull request #991 from bureddy/master

HCOLL: Enable alltoall interface

ompi/mca/coll/hcoll/coll_hcoll_module.c

@@ -313,7 +313,7 @@ mca_coll_hcoll_comm_query(struct ompi_communicator_t *comm, int *priority)
     hcoll_module->super.coll_bcast = hcoll_collectives.coll_bcast ? mca_coll_hcoll_bcast : NULL;
     hcoll_module->super.coll_allgather = hcoll_collectives.coll_allgather ? mca_coll_hcoll_allgather : NULL;
     hcoll_module->super.coll_allreduce = hcoll_collectives.coll_allreduce ? mca_coll_hcoll_allreduce : NULL;
-    hcoll_module->super.coll_alltoall = /*hcoll_collectives.coll_alltoall ? mca_coll_hcoll_alltoall : */  NULL;
+    hcoll_module->super.coll_alltoall = hcoll_collectives.coll_alltoall ? mca_coll_hcoll_alltoall : NULL;
     hcoll_module->super.coll_alltoallv = hcoll_collectives.coll_alltoallv ? mca_coll_hcoll_alltoallv : NULL;
     hcoll_module->super.coll_gatherv = hcoll_collectives.coll_gatherv ? mca_coll_hcoll_gatherv : NULL;
     hcoll_module->super.coll_ibarrier = hcoll_collectives.coll_ibarrier ? mca_coll_hcoll_ibarrier : NULL;