Use a single thread when loading models (#703)

@@ -34,6 +34,8 @@ static ModelType GetModelType(char *model_data, size_t model_data_length,
                               bool debug) {
   Ort::Env env(ORT_LOGGING_LEVEL_WARNING);
   Ort::SessionOptions sess_opts;
+  sess_opts.SetIntraOpNumThreads(1);
+  sess_opts.SetInterOpNumThreads(1);
 
   auto sess = std::make_unique<Ort::Session>(env, model_data, model_data_length,
                                              sess_opts);

@@ -40,6 +40,9 @@ std::unique_ptr<OfflineRecognizerImpl> OfflineRecognizerImpl::Create(
   Ort::Env env(ORT_LOGGING_LEVEL_ERROR);
 
   Ort::SessionOptions sess_opts;
+  sess_opts.SetIntraOpNumThreads(1);
+  sess_opts.SetInterOpNumThreads(1);
+
   std::string model_filename;
   if (!config.model_config.transducer.encoder_filename.empty()) {
     model_filename = config.model_config.transducer.encoder_filename;
@@ -167,6 +170,9 @@ std::unique_ptr<OfflineRecognizerImpl> OfflineRecognizerImpl::Create(
   Ort::Env env(ORT_LOGGING_LEVEL_ERROR);
 
   Ort::SessionOptions sess_opts;
+  sess_opts.SetIntraOpNumThreads(1);
+  sess_opts.SetInterOpNumThreads(1);
+
   std::string model_filename;
   if (!config.model_config.transducer.encoder_filename.empty()) {
     model_filename = config.model_config.transducer.encoder_filename;

@@ -39,6 +39,8 @@ static ModelType GetModelType(char *model_data, size_t model_data_length,
                               bool debug) {
   Ort::Env env(ORT_LOGGING_LEVEL_WARNING);
   Ort::SessionOptions sess_opts;
+  sess_opts.SetIntraOpNumThreads(1);
+  sess_opts.SetInterOpNumThreads(1);
 
   auto sess = std::make_unique<Ort::Session>(env, model_data, model_data_length,
                                              sess_opts);

@@ -25,6 +25,8 @@ static ModelType GetModelType(char *model_data, size_t model_data_length,
                               bool debug) {
   Ort::Env env(ORT_LOGGING_LEVEL_WARNING);
   Ort::SessionOptions sess_opts;
+  sess_opts.SetIntraOpNumThreads(1);
+  sess_opts.SetInterOpNumThreads(1);
 
   auto sess = std::make_unique<Ort::Session>(env, model_data, model_data_length,
                                              sess_opts);