register mca_coll_sm2_allreduce_intra - function still does not do any

reduction operations.

This commit was SVN r17467.

ompi/mca/coll/sm2/coll_sm2.h

@@ -291,6 +291,15 @@ BEGIN_C_DECLS
      * time, and we ensure that operations are completed in order. */
     int free_sm2_shared_buffer(mca_coll_sm2_module_t *module);
 
+    /**
+     * Shared memory blocking allreduce.
+     */
+    int mca_coll_sm2_allreduce_intra(void *sbuf, void *rbuf, int count,
+            struct ompi_datatype_t *dtype,
+            struct ompi_op_t *op,
+            struct ompi_communicator_t *comm,
+            struct mca_coll_base_module_1_1_0_t *module);
+
 /**
  * Macro to setup flag usage
  */

ompi/mca/coll/sm2/coll_sm2_module.c

@@ -469,7 +469,7 @@ mca_coll_sm2_comm_query(struct ompi_communicator_t *comm, int *priority)
     sm_module->super.ft_event        = NULL;
     sm_module->super.coll_allgather  = NULL;
     sm_module->super.coll_allgatherv = NULL;
-    sm_module->super.coll_allreduce  = NULL;
+    sm_module->super.coll_allreduce  = mca_coll_sm2_allreduce_intra;
     sm_module->super.coll_alltoall   = NULL;
     sm_module->super.coll_alltoallv  = NULL;
     sm_module->super.coll_alltoallw  = NULL;