fix scope problem for slim

paddlex/cv/models/slim/prune.py

@@ -104,7 +104,7 @@ def sensitivity(program,
     return sensitivities
 
 
-def channel_prune(program, prune_names, prune_ratios, place, only_graph=False):
+def channel_prune(program, prune_names, prune_ratios, place, only_graph=False, scope=None):
     """通道裁剪。
 
     Args:
@@ -134,6 +134,7 @@ def channel_prune(program, prune_names, prune_ratios, place, only_graph=False):
             pruned_num = int(round(origin_num * (ratio)))
             prune_ratios[index] = ratio
         index += 1
+    if scope is None:
         scope = fluid.global_scope()
     pruner = Pruner()
     program, _, _ = pruner.prune(
@@ -175,12 +176,12 @@ def prune_program(model, prune_params_ratios=None):
         prune_params_ratios[prune_name] for prune_name in prune_names
     ]
     model.train_prog = channel_prune(train_prog, prune_names, prune_ratios,
-                                     place)
+                                     place, scope=model.scope)
     model.test_prog = channel_prune(
-        eval_prog, prune_names, prune_ratios, place, only_graph=True)
+        eval_prog, prune_names, prune_ratios, place, only_graph=True, scope=model.scope)
 
 
-def update_program(program, model_dir, place):
+def update_program(program, model_dir, place, scope=None):
     """根据裁剪信息更新Program和参数。
 
     Args:
@@ -197,10 +198,12 @@ def update_program(program, model_dir, place):
         shapes = yaml.load(f.read(), Loader=yaml.Loader)
     for param, shape in shapes.items():
         graph.var(param).set_shape(shape)
+    if scope is None:
+        scope = fluid.global_scope()
     for block in program.blocks:
         for param in block.all_parameters():
             if param.name in shapes:
-                param_tensor = fluid.global_scope().find_var(
+                param_tensor = scope.find_var(
                     param.name).get_tensor()
                 param_tensor.set(
                     np.zeros(list(shapes[param.name])).astype('float32'),
@@ -293,7 +296,7 @@ def get_params_ratios(sensitivities_file, eval_metric_loss=0.05):
     return params_ratios
 
 
-def cal_model_size(program, place, sensitivities_file, eval_metric_loss=0.05):
+def cal_model_size(program, place, sensitivities_file, eval_metric_loss=0.05, scope=None):
     """在可容忍的精度损失下，计算裁剪后模型大小相对于当前模型大小的比例。
 
     Args:
@@ -326,7 +329,8 @@ def cal_model_size(program, place, sensitivities_file, eval_metric_loss=0.05):
         list(prune_params_ratios.keys()),
         list(prune_params_ratios.values()),
         place,
-        only_graph=True)
+        only_graph=True,
+        scope=scope)
     origin_size = 0
     new_size = 0
     for var in program.list_vars():

paddlex/cv/models/slim/prune_config.py

@@ -171,10 +171,14 @@ def get_prune_params(model):
             model_type.startswith('ShuffleNetV2'):
         for block in program.blocks:
             for param in block.all_parameters():
-                pd_var = fluid.global_scope().find_var(param.name)
+                pd_var = model.scope.find_var(param.name)
+                try:
                     pd_param = pd_var.get_tensor()
                     if len(np.array(pd_param).shape) == 4:
                         prune_names.append(param.name)
+                except Exception as e:
+                    print("None Tensor Name: ", param.name)
+                    print("Error message: {}".format(e))
         if model_type == 'AlexNet':
             prune_names.remove('conv5_weights')
         if model_type == 'ShuffleNetV2':

paddlex/cv/models/slim/visualize.py

@@ -42,7 +42,7 @@ def visualize(model, sensitivities_file, save_dir='./'):
     y = list()
     for loss_thresh in tqdm.tqdm(list(np.arange(0.05, 1, 0.05))):
         prune_ratio = 1 - cal_model_size(
-            program, place, sensitivities_file, eval_metric_loss=loss_thresh)
+            program, place, sensitivities_file, eval_metric_loss=loss_thresh, scope=model.scope)
         x.append(prune_ratio)
         y.append(loss_thresh)
     plt.plot(x, y, color='green', linewidth=0.5, marker='o', markersize=3)