give debug warnings when handling for plateaus and linearly dependent…

… situations
JohannesBuchner · Sep 16, 2021 · 324ffe5 · 324ffe5
1 parent fd1f68d
commit 324ffe5
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/ultranest/integrator.py b/ultranest/integrator.py
@@ -2020,6 +2020,8 @@ def _should_node_be_expanded(
             return False
 
         if not live_points_healthy:
+            if self.log:
+                self.logger.debug("not expanding, because live points are linearly dependent")
             return False
 
         # some reasons to stop:
@@ -2034,6 +2036,8 @@ def _should_node_be_expanded(
 
         # in a plateau, only shrink (Fowlie+2020)
         if (Lmin == parallel_values).sum() > 1:
+            if self.log:
+                self.logger.debug("Plateau detected at L=%e, not replacing live point." % Lmin)
             return False
 
         expand_node = False