Try to execute the outputs that take the less steps first.

main.py

@@ -59,6 +59,23 @@ def recursive_execute(prompt, outputs, current_item, extra_data={}):
     outputs[unique_id] = getattr(obj, obj.FUNCTION)(**input_data_all)
     return executed + [unique_id]
 
+def recursive_will_execute(prompt, outputs, current_item):
+    unique_id = current_item
+    inputs = prompt[unique_id]['inputs']
+    will_execute = []
+    if unique_id in outputs:
+        return []
+
+    for x in inputs:
+        input_data = inputs[x]
+        if isinstance(input_data, list):
+            input_unique_id = input_data[0]
+            output_index = input_data[1]
+            if input_unique_id not in outputs:
+                will_execute += recursive_will_execute(prompt, outputs, input_unique_id)
+
+    return will_execute + [unique_id]
+
 def recursive_output_delete_if_changed(prompt, old_prompt, outputs, current_item):
     unique_id = current_item
     inputs = prompt[unique_id]['inputs']
@@ -120,7 +137,16 @@ class PromptExecutor:
             current_outputs = set(self.outputs.keys())
             executed = []
             try:
+                to_execute = []
                 for x in prompt:
+                    class_ = nodes.NODE_CLASS_MAPPINGS[prompt[x]['class_type']]
+                    if hasattr(class_, 'OUTPUT_NODE'):
+                        to_execute += [(0, x)]
+
+                while len(to_execute) > 0:
+                    to_execute = sorted(list(map(lambda a: (len(recursive_will_execute(prompt, self.outputs, a[-1])), a[-1]), to_execute)))
+                    x = to_execute.pop(0)[-1]
+
                     class_ = nodes.NODE_CLASS_MAPPINGS[prompt[x]['class_type']]
                     if hasattr(class_, 'OUTPUT_NODE'):
                         if class_.OUTPUT_NODE == True:
@@ -132,6 +158,7 @@ class PromptExecutor:
                                 valid = False
                             if valid:
                                 executed += recursive_execute(prompt, self.outputs, x, extra_data)
+
             except Exception as e:
                 print(traceback.format_exc())
                 to_delete = []