Fixing issue with _finalizeInteract in serial jobs (#1730)

terrapower · Jun 14, 2024 · a7a868b · a7a868b
1 parent 3ab04b4
commit a7a868b
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/armi/operators/operatorMPI.py b/armi/operators/operatorMPI.py
@@ -214,8 +214,9 @@ def _finalizeInteract(self):
         This is only called on the root processor. Worker processors will know
         what to do with the "reset" broadcast.
         """
-        context.MPI_COMM.bcast("reset", root=0)
-        runLog.extra("Workers have been reset.")
+        if context.MPI_SIZE > 1:
+            context.MPI_COMM.bcast("reset", root=0)
+            runLog.extra("Workers have been reset.")
 
     def _resetWorker(self):
         """