Check whether param name is manually set when input is a sequence in fc layer

python/paddle/trainer_config_helpers/layers.py

@@ -1044,6 +1044,8 @@ def fc_layer(input,
         if isinstance(param_attr, collections.Sequence):
             assert len(input) == len(param_attr)
         else:
+            if "parameter_name" in param_attr.attr and len(input) > 1:
+                logger.fatal("You should set the parameter name for each of the input item.")
             param_attr = [copy.deepcopy(param_attr) for _ in range(len(input))]
 
     assert isinstance(input, collections.Sequence)
@@ -4863,6 +4865,8 @@ def selective_fc_layer(input,
         if isinstance(param_attr, collections.Sequence):
             assert len(input) == len(param_attr)
         else:
+            if "parameter_name" in param_attr.attr and len(input) > 1:
+                logger.fatal("You should set the parameter name for each of the input item.")
             param_attr = [copy.deepcopy(param_attr) for _ in range(len(input))]
 
     assert isinstance(input, collections.Sequence)