fix: fix omp thread bug (#2371)

* fix: fix omp thread bug

* fix: fix compile android level & test=develop

* fix: fix omp bug

* fix: fix omp bug
test=develop

cmake/cross_compiling/android.cmake

@@ -34,6 +34,9 @@ endif()
 
 if(NOT DEFINED ANDROID_API_LEVEL)
     set(ANDROID_API_LEVEL "23")
+    if(ARM_TARGET_ARCH_ABI STREQUAL "armv7")
+        set(ANDROID_API_LEVEL "22")
+    endif()
 endif()
 
 # then check input arm abi

lite/api/cxx_api_impl.cc

@@ -30,6 +30,9 @@ void CxxPaddleApiImpl::Init(const lite_api::CxxConfig &config) {
 #endif
   auto places = config.valid_places();
   raw_predictor_.Build(config, places);
+
+  mode_ = config.power_mode();
+  threads_ = config.threads();
 }
 
 std::unique_ptr<lite_api::Tensor> CxxPaddleApiImpl::GetInput(int i) {
@@ -51,7 +54,12 @@ std::vector<std::string> CxxPaddleApiImpl::GetOutputNames() {
   return raw_predictor_.GetOutputNames();
 }
 
-void CxxPaddleApiImpl::Run() { raw_predictor_.Run(); }
+void CxxPaddleApiImpl::Run() {
+#ifdef LITE_WITH_ARM
+  lite::DeviceInfo::Global().SetRunMode(mode_, threads_);
+#endif
+  raw_predictor_.Run();
+}
 
 std::shared_ptr<lite_api::PaddlePredictor> CxxPaddleApiImpl::Clone() {
   std::lock_guard<std::mutex> lock(mutex_);

lite/api/light_api_impl.cc

@@ -29,6 +29,9 @@ void LightPredictorImpl::Init(const lite_api::MobileConfig& config) {
                          config.param_buffer(),
                          config.model_from_memory(),
                          lite_api::LiteModelType::kNaiveBuffer));
+
+  mode_ = config.power_mode();
+  threads_ = config.threads();
 }
 
 std::unique_ptr<lite_api::Tensor> LightPredictorImpl::GetInput(int i) {
@@ -42,7 +45,12 @@ std::unique_ptr<const lite_api::Tensor> LightPredictorImpl::GetOutput(
       new lite_api::Tensor(raw_predictor_->GetOutput(i)));
 }
 
-void LightPredictorImpl::Run() { raw_predictor_->Run(); }
+void LightPredictorImpl::Run() {
+#ifdef LITE_WITH_ARM
+  lite::DeviceInfo::Global().SetRunMode(mode_, threads_);
+#endif
+  raw_predictor_->Run();
+}
 
 std::shared_ptr<lite_api::PaddlePredictor> LightPredictorImpl::Clone() {
   LOG(FATAL) << "The Clone API is not supported in LigthPredictor";

lite/api/paddle_api.h

@@ -102,6 +102,10 @@ class LITE_API PaddlePredictor {
       bool record_info = false);
 
   virtual ~PaddlePredictor() = default;
+
+ protected:
+  int threads_{1};
+  lite_api::PowerMode mode_{lite_api::LITE_POWER_NO_BIND};
 };
 
 /// Base class for all the configs.