Merge pull request #1248 from milroy/leaf-filters

Don't add pruning filter for leaf vertices
flux-framework · Jul 19, 2024 · 5b6058f · 5b6058f
2 parents a3efac4 + f5b1311
commit 5b6058f
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/resource/traversers/dfu_impl.cpp b/resource/traversers/dfu_impl.cpp
@@ -1103,6 +1103,14 @@ int dfu_impl_t::prime_pruning_filter (const subsystem_t &s,
 
     (*m_graph)[u].idata.colors[s] = m_color.gray ();
     accum_if (s, type, (*m_graph)[u].size, to_parent);
+
+    // Don't create and prime a pruning filter if this is
+    // a leaf vertex
+    if (out_degree (u, *m_graph) == 0) {
+        rc = 0;
+        goto done;
+    }
+
     if (prime_exp (s, u, dfv) != 0)
         goto done;