add config.enable_memory_optim()

tools/infer/utility.py

@@ -88,6 +88,7 @@ def create_predictor(args, mode):
 
     if args.use_gpu:
         config.enable_use_gpu(args.gpu_mem, 0)
+        config.enable_memory_optim()
     else:
         config.disable_gpu()
 
@@ -310,4 +311,4 @@ if __name__ == '__main__':
 
     new_img = draw_ocr(image, boxes, txts, scores, draw_txt=True)
 
-    cv2.imwrite(img_name, new_img)
\ No newline at end of file
+    cv2.imwrite(img_name, new_img)