diff --git a/lite/api/cxx_api_impl.cc b/lite/api/cxx_api_impl.cc
index 152af063551a83d4e75bd9af8093b480da3c7d0c..154f5c57702e91cc4144e70d99f340ffabfb7ed5 100644
--- a/lite/api/cxx_api_impl.cc
+++ b/lite/api/cxx_api_impl.cc
@@ -54,13 +54,14 @@ void CxxPaddleApiImpl::Init(const lite_api::CxxConfig &config) {
 
 #if (defined LITE_WITH_X86) && (defined PADDLE_WITH_MKLML) && \
     !(defined LITE_ON_MODEL_OPTIMIZE_TOOL)
-  int num_threads = config.x86_math_library_num_threads();
-  int real_num_threads = num_threads > 1 ? num_threads : 1;
+//  int num_threads = config.x86_math_library_num_threads();
+//  int real_num_threads = num_threads > 1 ? num_threads : 1;
+  int real_num_threads=1;
   paddle::lite::x86::MKL_Set_Num_Threads(real_num_threads);
   omp_set_num_threads(real_num_threads);
   VLOG(3) << "set_x86_math_library_math_threads() is set successfully and the "
              "number of threads is:"
-          << num_threads;
+          << real_num_threads;
 #endif
 }