diff --git a/paddle/fluid/CMakeLists.txt b/paddle/fluid/CMakeLists.txt
index 595454e90b9cd713fd2baed24538cf5fbc93934a..6e951e42a0f2f84ff7e638c382359d5f8e1ca5d1 100644
--- a/paddle/fluid/CMakeLists.txt
+++ b/paddle/fluid/CMakeLists.txt
@@ -9,4 +9,4 @@ add_subdirectory(pybind)
 
 # NOTE: please add subdirectory inference at last.
 add_subdirectory(inference)
-add_subdirectory(train)
+#add_subdirectory(train)
diff --git a/paddle/fluid/inference/CMakeLists.txt b/paddle/fluid/inference/CMakeLists.txt
index 0d682fc0a5d7dd0c7925ff97fd77c6107a153b08..a89dc3caf55338358b837943a89ea2ba4b7f2e1c 100644
--- a/paddle/fluid/inference/CMakeLists.txt
+++ b/paddle/fluid/inference/CMakeLists.txt
@@ -25,13 +25,13 @@ if (WIN32)
 list(APPEND fluid_third_partys gflags glog protobuf cblas)
 endif(WIN32)
 
-# paddle_fluid_origin exclude inference api interface
-if(WIN32)
-  sep_library(paddle_fluid_origin DEPS ${fluid_modules} paddle_fluid_api)
-else(WIN32)
-  #set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> --target elf64-x86-64 cr paddle_fluid_origin ${fluid_modules} paddle_fluid_api")
-  cc_library(paddle_fluid_origin DEPS ${fluid_modules} paddle_fluid_api)
-endif(WIN32)
+# # paddle_fluid_origin exclude inference api interface
+# if(WIN32)
+  # sep_library(paddle_fluid_origin DEPS ${fluid_modules} paddle_fluid_api)
+# else(WIN32)
+  # set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> --target elf64-x86-64 cr paddle_fluid_origin ${fluid_modules} paddle_fluid_api")
+  # cc_library(paddle_fluid_origin DEPS ${fluid_modules} paddle_fluid_api)
+# endif(WIN32)
 
 add_subdirectory(api)
 
@@ -41,19 +41,19 @@ set(SHARED_INFERENCE_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/api/analysis_predictor.cc
     ${CMAKE_CURRENT_SOURCE_DIR}/api/details/zero_copy_tensor.cc)
 
-if(WIN32)
-  sep_library(paddle_fluid DEPS ${fluid_modules} ${STATIC_INFERENCE_APIS} zero_copy_tensor reset_tensor_array
-              analysis_config paddle_pass_builder)
-else(WIN32)
-  cc_library(paddle_fluid DEPS ${fluid_modules} ${STATIC_INFERENCE_APIS}
-             zero_copy_tensor reset_tensor_array analysis_config paddle_pass_builder)
-endif(WIN32)
+# if(WIN32)
+  # sep_library(paddle_fluid DEPS ${fluid_modules} ${STATIC_INFERENCE_APIS} zero_copy_tensor reset_tensor_array
+              # analysis_config paddle_pass_builder)
+# else(WIN32)
+  # cc_library(paddle_fluid DEPS ${fluid_modules} ${STATIC_INFERENCE_APIS}
+             # zero_copy_tensor reset_tensor_array analysis_config paddle_pass_builder)
+# endif(WIN32)
 
-if(NOT APPLE)
-  # TODO(liuyiqu: Temporarily disable the link flag because it is not support on Mac.
-  set(LINK_FLAGS "-Wl,--retain-symbols-file ${CMAKE_CURRENT_SOURCE_DIR}/paddle_fluid.sym")
-  set_target_properties(paddle_fluid PROPERTIES LINK_FLAGS "${LINK_FLAGS}")
-endif()
+# if(NOT APPLE)
+  # # TODO(liuyiqu: Temporarily disable the link flag because it is not support on Mac.
+  # set(LINK_FLAGS "-Wl,--retain-symbols-file ${CMAKE_CURRENT_SOURCE_DIR}/paddle_fluid.sym")
+  # set_target_properties(paddle_fluid PROPERTIES LINK_FLAGS "${LINK_FLAGS}")
+# endif()
 
 # Create shared library
 if(WIN32)
@@ -87,10 +87,10 @@ if(NOT APPLE AND NOT WIN32)
   add_custom_target(check_symbol ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/.check_symbol")
 endif()
 
-if(WITH_TESTING)
-    # tests/book depends the models that generated by python/paddle/fluid/tests/book
-  add_subdirectory(tests/book)
-  if(WITH_INFERENCE_API_TEST)
-    add_subdirectory(tests/api)
-  endif()
-endif()
+# if(WITH_TESTING)
+    # # tests/book depends the models that generated by python/paddle/fluid/tests/book
+  # add_subdirectory(tests/book)
+  # if(WITH_INFERENCE_API_TEST)
+    # add_subdirectory(tests/api)
+  # endif()
+# endif()
diff --git a/paddle/fluid/pybind/imperative.cc b/paddle/fluid/pybind/imperative.cc
index 6bbda69297a48ce27ce23282c4e08d49ee3cce6c..29c8e6a12940eb5652a0a97bea27c6fed5612001 100644
--- a/paddle/fluid/pybind/imperative.cc
+++ b/paddle/fluid/pybind/imperative.cc
@@ -42,6 +42,7 @@ void BindTracer(pybind11::module* m) {
               framework::AttributeMap attrs_map,
               const platform::CPUPlace expected_place,
               const bool stop_gradient = false) {
+             pybind11::gil_scoped_release release;
              return self.Trace(op, inputs, outputs, attrs_map, expected_place,
                                stop_gradient);
            })
@@ -52,6 +53,7 @@ void BindTracer(pybind11::module* m) {
               framework::AttributeMap attrs_map,
               const platform::CUDAPlace expected_place,
               const bool stop_gradient = false) {
+             pybind11::gil_scoped_release release;
              return self.Trace(op, inputs, outputs, attrs_map, expected_place,
                                stop_gradient);
            })