fix a bug

Author: JiayiFeng

python/paddle/fluid/layers/tensor.py

@@ -115,7 +115,7 @@ def create_global_var(shape,
     """
     helper = LayerHelper("global_var", **locals())
     var = helper.create_global_variable(
-        dtype=dtype, shape=shape, persistable=persistable)
+        dtype=dtype, shape=shape, persistable=persistable, name=name)
     helper.set_variable_initializer(
         var, initializer=Constant(
             value=float(value), force_cpu=force_cpu))