!1999 Fix python test case of UT probability failure.

Merge pull request !1999 from rick_sanchez/huangyong

mindspore/ccsrc/pipeline/pipeline.cc

@@ -882,7 +882,7 @@ void ClearResAtexit() {
   pipeline::GetMethodMap().clear();
   pipeline::ExecutorPy::ClearRes();
   pipeline::ReclaimOptimizer();
-  pynative::PynativeExecutor::GetInstance()->Clean();
+  pynative::PynativeExecutor::GetInstance()->ClearRes();
 #ifdef ENABLE_GE
   transform::DfGraphManager::GetInstance().ClearGraph();
   transform::DfGraphConvertor::get_adpt_map().clear();

mindspore/ccsrc/pynative/pynative_execute.cc

@@ -595,7 +595,7 @@ py::tuple RunOp(const py::args &args) {
 
 void ClearPyNativeSession() { session = nullptr; }
 
-PynativeExecutor::~PynativeExecutor() { Clean(); }
+PynativeExecutor::~PynativeExecutor() { ClearRes(); }
 
 PynativeExecutor::PynativeExecutor() { grad_flag_ = false; }
 
@@ -849,17 +849,32 @@ void PynativeExecutor::GradNet(const GradOperationPtr &grad, const py::object &c
   pipeline::ReclaimOptimizer();
 }
 
-void PynativeExecutor::Clear() {
+void PynativeExecutor::Clear(const std::string &flag) {
-  MS_LOG(INFO) << "Clear all res";
+  if (flag == "resource") {
-  top_g_ = curr_g_ = nullptr;
+    MS_LOG(INFO) << "Clear res";
-  std::stack<FuncGraphPtr>().swap(graph_p_);
+    Clean();
+    return;
+  }
+  MS_LOG(INFO) << "Clear";
+  top_g_ = nullptr;
+  curr_g_ = nullptr;
   graph_info_map_.clear();
+  std::stack<FuncGraphPtr>().swap(graph_p_);
 }
 
 void PynativeExecutor::Clean() {
+  MS_LOG(INFO) << "Clean all res";
+  Clear();
+  grad_flag_ = false;
   graph_map_.clear();
   cell_graph_map_.clear();
-  Clear();
+  df_builder_ = nullptr;
+  ad::CleanRes();
+  pipeline::ReclaimOptimizer();
+}
+
+void PynativeExecutor::ClearRes() {
+  Clean();
   resource_.reset();
 }
 

mindspore/ccsrc/pynative/pynative_execute.h

@@ -68,8 +68,9 @@ class PynativeExecutor : public std::enable_shared_from_this<PynativeExecutor> {
   void NewGraph(const py::object &cell, const py::args &args);
   void EndGraph(const py::object &cell, const py::object &out, const py::args &args);
   void GradNet(const GradOperationPtr &grad, const py::object &cell, const py::object &weights, const py::args &args);
-  void Clear();
+  void Clear(const std::string &flag = "");
   void Clean();
+  void ClearRes();
   bool grad_flag() { return grad_flag_; }
   void set_grad_flag(bool flag) { grad_flag_ = flag; }
   AnfNodePtr GetInput(const py::object &obj, const py::object &op_mask);

mindspore/common/api.py

@@ -293,8 +293,8 @@ class _PynativeExecutor:
     def grad(self, grad, obj, weights, *args):
         self._executor.grad_net(grad, obj, weights, *args)
 
-    def clear(self):
+    def clear(self, flag=""):
-        self._executor.clear()
+        self._executor.clear(flag)
 
     def set_grad_flag(self, flag):
         self._executor.set_grad_flag(flag)

mindspore/nn/cell.py

@@ -186,6 +186,7 @@ class Cell:
         raise AttributeError("'{}' object has no attribute '{}'.".format(type(self).__name__, name))
 
     def __del__(self):
+        _pynative_exec.clear("resource")
         if hasattr(self, "_create_time"):
             _executor.del_net_res(str(self._create_time))