fix: raise exception

raise exception about using no_weight_decay of AdamW in static graph

ppcls/optimizer/optimizer.py

@@ -18,6 +18,8 @@ from __future__ import print_function
 
 from paddle import optimizer as optim
 
+from ppcls.utils import logger
+
 
 class Momentum(object):
     """
@@ -171,6 +173,13 @@ class AdamW(object):
                          []) if model_list else None
 
         # TODO(gaotingquan): model_list is None when in static graph, "no_weight_decay" not work.
+        if model_list is None:
+            if self.one_dim_param_no_weight_decay or len(
+                    self.no_weight_decay_name_list) != 0:
+                msg = "\"AdamW\" does not support setting \"no_weight_decay\" in static graph. Please use dynamic graph."
+                logger.error(Exception(msg))
+                raise Exception(msg)
+
         self.no_weight_decay_param_name_list = [
             p.name for model in model_list for n, p in model.named_parameters()
             if any(nd in n for nd in self.no_weight_decay_name_list)