diff --git a/paddle/scripts/paddle_build.bat b/paddle/scripts/paddle_build.bat
index bfa90a7425e2ea0bc2aec57815ad89a3f8d212d1..a6c6a065d2f7bd37bb54b3978201468003508b2d 100644
--- a/paddle/scripts/paddle_build.bat
+++ b/paddle/scripts/paddle_build.bat
@@ -30,6 +30,7 @@ taskkill /f /im op_function_generator.exe
 wmic process where name="op_function_generator.exe" call terminate
 
 rem ------initialize common variable------
+if not defined GENERATOR set GENERATOR="Visual Studio 14 2015 Win64"
 if not defined BRANCH set BRANCH=develop
 if not defined WITH_TENSORRT set WITH_TENSORRT=ON 
 if not defined TENSORRT_ROOT set TENSORRT_ROOT="D:/TensorRT"
@@ -43,11 +44,15 @@ if not defined WITH_STATIC_LIB set WITH_STATIC_LIB=ON
 if not defined WITH_CACHE set WITH_CACHE=OFF
 if not defined WITH_TPCACHE set WITH_TPCACHE=ON
 if not defined WITH_UNITY_BUILD set WITH_UNITY_BUILD=OFF
-set INFERENCE_DEMO_INSTALL_DIR=%cache_dir:\=/%/inference_demo
+if not defined INFERENCE_DEMO_INSTALL_DIR set INFERENCE_DEMO_INSTALL_DIR=%cache_dir:\=/%/inference_demo
 
 rem -------set cache build work directory-----------
 rmdir build\python /s/q
 del build\CMakeCache.txt
+
+: set CI_SKIP_CPP_TEST if only *.py changed
+git diff --name-only %BRANCH% | findstr /V "\.py" || set CI_SKIP_CPP_TEST=ON
+
 if "%WITH_CACHE%"=="OFF" (
     rmdir build /s/q
     goto :mkbuild
@@ -66,9 +71,6 @@ git show-ref --verify --quiet refs/heads/last_pr
 if %ERRORLEVEL% EQU 0 (
     git diff HEAD last_pr --stat --name-only
     git diff HEAD last_pr --stat --name-only | findstr "cmake/[a-zA-Z]*\.cmake CMakeLists.txt"
-    if !ERRORLEVEL! EQU 0 (
-        rmdir build /s/q
-    )
     git branch -D last_pr
     git branch last_pr
 ) else (
@@ -76,20 +78,6 @@ if %ERRORLEVEL% EQU 0 (
     git branch last_pr
 )
 
-:: set CI_SKIP_CPP_TEST if only *.py changed
-git diff --name-only %BRANCH% | findstr /V "\.py" || set CI_SKIP_CPP_TEST=ON
-
-:: for /F %%# in ('wmic os get localdatetime^|findstr 20') do set datetime=%%#
-:: set day_now=%datetime:~6,2%
-:: set day_before=-1
-:: set /p day_before=< %cache_dir%\day.txt
-:: if %day_now% NEQ %day_before% (
-::     echo %day_now% > %cache_dir%\day.txt
-::     type %cache_dir%\day.txt
-::     rmdir build /s/q
-::     goto :mkbuild
-:: )
-
 :: git diff HEAD origin/develop --stat --name-only
 :: git diff HEAD origin/develop --stat --name-only | findstr ".cmake CMakeLists.txt paddle_build.bat"
 :: if %ERRORLEVEL% EQU 0 (
@@ -113,11 +101,11 @@ dir paddle\fluid\pybind\Release
 
 rem ------initialize the python environment------
 if not defined PYTHON_ROOT set PYTHON_ROOT=C:\Python37
+set PYTHON_EXECUTABLE=%PYTHON_ROOT%\python.exe
 set PATH=%PYTHON_ROOT%;%PYTHON_ROOT%\Scripts;%PATH%
 
 rem ToDo: virtual environment can't be deleted safely, some process not exit when task is canceled
 rem Now use system python environment temporarily
-rem set PYTHON_EXECUTABLE=%PYTHON_ROOT%\python.exe
 rem %PYTHON_EXECUTABLE% -m pip install virtualenv
 rem %PYTHON_EXECUTABLE% -m virtualenv paddle_winci
 rem call paddle_winci\Scripts\activate.bat
@@ -166,12 +154,11 @@ rem ------initialize cmake variable for mkl------
 set WITH_MKL=ON
 set WITH_GPU=OFF
 set MSVC_STATIC_CRT=ON
-set WITH_CLCACHE=OFF
 
 call :cmake || goto cmake_error
 call :build || goto build_error
 call :test_whl_pacakage || goto test_whl_pacakage_error
-call :unit_test || goto unit_test_error
+call :test_unit || goto test_unit_error
 call :test_inference || goto test_inference_error
 :: call :check_change_of_unittest || goto check_change_of_unittest_error
 goto:success
@@ -182,13 +169,11 @@ rem ------initialize cmake variable for openblas------
 set WITH_MKL=ON
 set WITH_GPU=ON
 set MSVC_STATIC_CRT=OFF
-rem Temporarily turn off WITH_INFERENCE_API_TEST on GPU due to compile hang
-set WITH_INFERENCE_API_TEST=OFF
 
 call :cmake || goto cmake_error
 call :build || goto build_error
 call :test_whl_pacakage || goto test_whl_pacakage_error
-call :unit_test || goto unit_test_error
+call :test_unit || goto test_unit_error
 call :test_inference || goto test_inference_error
 :: call :check_change_of_unittest || goto check_change_of_unittest_error
 goto:success
@@ -215,6 +200,20 @@ set CUDA_PATH=%CUDA_TOOLKIT_ROOT_DIR%
 
 rem ------set third_party cache dir------
 
+: clear third party cache every once in a while
+for /F %%# in ('wmic os get localdatetime^|findstr 20') do set datetime=%%#
+set day_now=%datetime:~6,2%
+set day_before=-1
+set /p day_before=< %cache_dir%\day.txt
+if %day_now% NEQ %day_before% (
+    echo %day_now% > %cache_dir%\day.txt
+    type %cache_dir%\day.txt
+    if %day_now% EQU 20 (
+        rmdir %cache_dir%\third_party_GPU/ /s/q
+        rmdir %cache_dir%\third_party/ /s/q
+    )
+)
+
 if "%WITH_TPCACHE%"=="OFF" (
     set THIRD_PARTY_PATH=%work_dir:\=/%/build/third_party
     goto :cmake_impl
@@ -235,15 +234,15 @@ if "%WITH_GPU%"=="ON" (
 )
 
 :cmake_impl
-echo cmake .. -G "Visual Studio 14 2015 Win64" -DWITH_AVX=%WITH_AVX% -DWITH_GPU=%WITH_GPU% -DWITH_MKL=%WITH_MKL% ^
--DWITH_TESTING=%WITH_TESTING% -DWITH_PYTHON=%WITH_PYTHON% -DON_INFER=%ON_INFER% ^
+echo cmake .. -G %GENERATOR% -DWITH_AVX=%WITH_AVX% -DWITH_GPU=%WITH_GPU% -DWITH_MKL=%WITH_MKL% ^
+-DWITH_TESTING=%WITH_TESTING% -DWITH_PYTHON=%WITH_PYTHON% -DPYTHON_EXECUTABLE=%PYTHON_EXECUTABLE% -DON_INFER=%ON_INFER% ^
 -DWITH_INFERENCE_API_TEST=%WITH_INFERENCE_API_TEST% -DTHIRD_PARTY_PATH=%THIRD_PARTY_PATH% ^
 -DINFERENCE_DEMO_INSTALL_DIR=%INFERENCE_DEMO_INSTALL_DIR% -DWITH_STATIC_LIB=%WITH_STATIC_LIB% ^
 -DWITH_TENSORRT=%WITH_TENSORRT% -DTENSORRT_ROOT=%TENSORRT_ROOT% -DMSVC_STATIC_CRT=%MSVC_STATIC_CRT% ^
 -DWITH_UNITY_BUILD=%WITH_UNITY_BUILD%
 
-cmake .. -G "Visual Studio 14 2015 Win64" -DWITH_AVX=%WITH_AVX% -DWITH_GPU=%WITH_GPU% -DWITH_MKL=%WITH_MKL% ^
--DWITH_TESTING=%WITH_TESTING% -DWITH_PYTHON=%WITH_PYTHON% -DON_INFER=%ON_INFER% ^
+cmake .. -G %GENERATOR% -DWITH_AVX=%WITH_AVX% -DWITH_GPU=%WITH_GPU% -DWITH_MKL=%WITH_MKL% ^
+-DWITH_TESTING=%WITH_TESTING% -DWITH_PYTHON=%WITH_PYTHON% -DPYTHON_EXECUTABLE=%PYTHON_EXECUTABLE% -DON_INFER=%ON_INFER% ^
 -DWITH_INFERENCE_API_TEST=%WITH_INFERENCE_API_TEST% -DTHIRD_PARTY_PATH=%THIRD_PARTY_PATH% ^
 -DINFERENCE_DEMO_INSTALL_DIR=%INFERENCE_DEMO_INSTALL_DIR% -DWITH_STATIC_LIB=%WITH_STATIC_LIB% ^
 -DWITH_TENSORRT=%WITH_TENSORRT% -DTENSORRT_ROOT=%TENSORRT_ROOT% -DMSVC_STATIC_CRT=%MSVC_STATIC_CRT% ^
@@ -286,9 +285,9 @@ clcache.exe -z
 
 echo Build Paddle the %build_times% time:
 if "%WITH_CLCACHE%"=="OFF" (
-    msbuild /m:%PARALLEL_PROJECT_COUNT% /p:Configuration=Release /verbosity:minimal paddle.sln
+    msbuild /m:%PARALLEL_PROJECT_COUNT% /p:Configuration=Release /verbosity:normal paddle.sln
 ) else (
-    msbuild /m:%PARALLEL_PROJECT_COUNT% /p:TrackFileAccess=false /p:CLToolExe=clcache.exe /p:CLToolPath=%PYTHON_ROOT%\Scripts /p:Configuration=Release /verbosity:minimal paddle.sln
+    msbuild /m:%PARALLEL_PROJECT_COUNT% /p:TrackFileAccess=false /p:CLToolExe=clcache.exe /p:CLToolPath=%PYTHON_ROOT%\Scripts /p:Configuration=Release /verbosity:normal paddle.sln
 )
 
 if %ERRORLEVEL% NEQ 0 (
@@ -365,7 +364,7 @@ echo Test import paddle failed, will exit!
 exit /b 1
 
 rem ---------------------------------------------------------------------------------------------
-:unit_test
+:test_unit
 @ECHO ON
 echo    ========================================
 echo    Step 4. Running unit tests ...
@@ -435,7 +434,7 @@ ctest.exe -E "(%disable_ut_quickly%)" -LE %nightly_label% --output-on-failure -C
 
 goto:eof
 
-:unit_test_error
+:test_unit_error
 :: echo 8 > %cache_dir%\error_code.txt
 :: type %cache_dir%\error_code.txt
 for /F %%# in ('wmic os get localdatetime^|findstr 20') do set end=%%#
@@ -508,11 +507,12 @@ echo     git fetch upstream $BRANCH # develop is not fetched>>  check_change_of_
 echo fi>>  check_change_of_unittest.sh
 echo git checkout -b origin_pr >>  check_change_of_unittest.sh
 echo git checkout -f $BRANCH >>  check_change_of_unittest.sh
-echo cmake .. -G "Visual Studio 14 2015 Win64" -DWITH_AVX=%WITH_AVX% -DWITH_GPU=%WITH_GPU% -DWITH_MKL=%WITH_MKL% ^
--DWITH_TESTING=%WITH_TESTING% -DWITH_PYTHON=%WITH_PYTHON% -DON_INFER=%ON_INFER% ^
+echo cmake .. -G %GENERATOR% -DWITH_AVX=%WITH_AVX% -DWITH_GPU=%WITH_GPU% -DWITH_MKL=%WITH_MKL% ^
+-DWITH_TESTING=%WITH_TESTING% -DWITH_PYTHON=%WITH_PYTHON% -DPYTHON_EXECUTABLE=%PYTHON_EXECUTABLE% -DON_INFER=%ON_INFER% ^
 -DWITH_INFERENCE_API_TEST=%WITH_INFERENCE_API_TEST% -DTHIRD_PARTY_PATH=%THIRD_PARTY_PATH% ^
 -DINFERENCE_DEMO_INSTALL_DIR=%INFERENCE_DEMO_INSTALL_DIR% -DWITH_STATIC_LIB=%WITH_STATIC_LIB% ^
--DTENSORRT_ROOT=%TENSORRT_ROOT% -DMSVC_STATIC_CRT=%MSVC_STATIC_CRT% >>  check_change_of_unittest.sh
+-DWITH_TENSORRT=%WITH_TENSORRT% -DTENSORRT_ROOT=%TENSORRT_ROOT% -DMSVC_STATIC_CRT=%MSVC_STATIC_CRT% ^
+-DWITH_UNITY_BUILD=%WITH_UNITY_BUILD% >>  check_change_of_unittest.sh
 echo cat ^<^<EOF>>  check_change_of_unittest.sh
 echo     ============================================       >>  check_change_of_unittest.sh
 echo     Generate unit tests.spec of develop.               >>  check_change_of_unittest.sh