Update ppdet/utils/checkpoint.py to skip the var shape check when the var is...

Update ppdet/utils/checkpoint.py to skip the var shape check when the var is not initialized. (#3452)

PaddleCV/PaddleDetection/ppdet/utils/checkpoint.py

@@ -47,7 +47,6 @@ def is_url(path):
     return path.startswith('http://') or path.startswith('https://')
 
 
-
 def load_params(exe, prog, path, ignore_params=[]):
     """
     Load model from the given path.
@@ -177,6 +176,7 @@ def load_and_fusebn(exe, prog, path):
 
     inner_prog = fluid.Program()
     inner_start_prog = fluid.Program()
+    inner_block = inner_prog.global_block()
     with fluid.program_guard(inner_prog, inner_start_prog):
         for block in prog.blocks:
             ops = list(block.ops)
@@ -199,10 +199,20 @@ def load_and_fusebn(exe, prog, path):
                         break
 
                     bias = block.var(bias_name)
-                    mean_vb = fluid.layers.create_parameter(
-                        bias.shape, bias.dtype, mean_name)
-                    variance_vb = fluid.layers.create_parameter(
-                        bias.shape, bias.dtype, variance_name)
+
+                    mean_vb = inner_block.create_var(
+                        name=mean_name,
+                        type=bias.type,
+                        shape=bias.shape,
+                        dtype=bias.dtype,
+                        persistable=True)
+                    variance_vb = inner_block.create_var(
+                        name=variance_name,
+                        type=bias.type,
+                        shape=bias.shape,
+                        dtype=bias.dtype,
+                        persistable=True)
+
                     mean_variances.add(mean_vb)
                     mean_variances.add(variance_vb)