diff --git a/orte/mca/rmaps/base/rmaps_base_ranking.c b/orte/mca/rmaps/base/rmaps_base_ranking.c
index 3165448855..a7007d9f92 100644
--- a/orte/mca/rmaps/base/rmaps_base_ranking.c
+++ b/orte/mca/rmaps/base/rmaps_base_ranking.c
@@ -511,6 +511,9 @@ int orte_rmaps_base_compute_vpids(orte_job_t *jdata,
                     continue;
                 }
                 if (ORTE_VPID_INVALID == proc->name.vpid) {
+                    opal_output_verbose(5, orte_rmaps_base.rmaps_output,
+                                        "mca:rmaps:base: assigning rank %s to node %s",
+                                        ORTE_VPID_PRINT(vpid), node->name);
                     proc->name.vpid = vpid++;
                     ORTE_EPOCH_SET(proc->name.epoch,ORTE_EPOCH_INVALID);
                     ORTE_EPOCH_SET(proc->name.epoch,orte_ess.proc_get_epoch(&proc->name));
diff --git a/orte/mca/rmaps/base/rmaps_base_support_fns.c b/orte/mca/rmaps/base/rmaps_base_support_fns.c
index 81b97adc45..ba3102468e 100644
--- a/orte/mca/rmaps/base/rmaps_base_support_fns.c
+++ b/orte/mca/rmaps/base/rmaps_base_support_fns.c
@@ -292,6 +292,17 @@ int orte_rmaps_base_get_target_nodes(opal_list_t *allocated_nodes, orte_std_cntr
     
     *total_num_slots = num_slots;
     
+    if (4 < opal_output_get_verbosity(orte_rmaps_base.rmaps_output)) {
+        opal_output(0, "AVAILABLE NODES FOR MAPPING:");
+        for (item = opal_list_get_first(allocated_nodes);
+             item != opal_list_get_end(allocated_nodes);
+             item = opal_list_get_next(item)) {
+            node = (orte_node_t*)item;
+            opal_output(0, "    node: %s daemon: %s", node->name,
+                        (NULL == node->daemon) ? "NULL" : ORTE_VPID_PRINT(node->daemon->name.vpid));
+        }
+    }
+
     return ORTE_SUCCESS;
 }