Update demo.py

demo.py

@@ -22,7 +22,7 @@ from tempfile import NamedTemporaryFile
 if sys.version_info[0] < 3:
     raise Exception("You must use Python 3 or higher. Recommended version is Python 3.7")
 
-def load_checkpoints(config_path, checkpoint_path, cpu=False):
+def load_checkpoints(config_path, checkpoint_path, cpu=True):
 
     with open(config_path) as f:
         config = yaml.full_load(f)