!49370 ckpt参数更新接口load_param_into_net新增返回值：ckpt_not_load

Merge pull request !49370 from GuoZhibin/add_return_value_ckpt_not_load

docs/api/api_python/mindspore/mindspore.load_param_into_net.rst

@@ -12,6 +12,7 @@ mindspore.load_param_into_net
 
     返回：
         List，网络中没有被加载的参数。
+        List，checkpoint文件中没有被加载的参数。
 
     异常：
         - **TypeError** - 如果参数不是Cell，或者 `parameter_dict` 不是Parameter类型的字典。

mindspore/python/mindspore/train/serialization.py

@@ -963,7 +963,8 @@ def load_param_into_net(net, parameter_dict, strict_load=False):
                             on the parameters of the same type, such as float32 to float16. Default: False.
 
     Returns:
-        List, the parameter name which are not loaded into the network.
+        List, the parameter name in model which are not loaded into the network.
+        List, the parameter name in checkpoint file which are not loaded into the network.
 
     Raises:
         TypeError: Argument is not a Cell, or parameter_dict is not a Parameter dictionary.
@@ -999,10 +1000,12 @@ def load_param_into_net(net, parameter_dict, strict_load=False):
     logger.info("Execute the process of loading parameters into net.")
     net.init_parameters_data()
     param_not_load = []
+    ckpt_not_load = list(parameter_dict.keys())
     for _, param in net.parameters_and_names():
         if param.name in parameter_dict:
             new_param = copy.deepcopy(parameter_dict[param.name])
             _update_param(param, new_param, strict_load)
+            ckpt_not_load.remove(param.name)
         else:
             param_not_load.append(param.name)
 
@@ -1021,7 +1024,7 @@ def load_param_into_net(net, parameter_dict, strict_load=False):
                        "when training and loading checkpoint.".format(len(param_not_load)))
         for param_name in param_not_load:
             logger.warning("{} is not loaded.".format(param_name))
-    return param_not_load
+    return param_not_load, ckpt_not_load
 
 
 def _load_dismatch_prefix_params(net, parameter_dict, param_not_load, strict_load):