!2076 fix summary nodes memory reuse refcount

Merge pull request !2076 from laiyongqiang/summary_refcnt

mindspore/ccsrc/pre_activate/mem_reuse/mem_reuse.cc

@@ -298,6 +298,31 @@ void MemReuseUtil::SetReuseRefCount() {
   }
 }
 
+void MemReuseUtil::SetSummaryNodesRefCount() {
+  bool summary_exist = graph_->summary_node_exist();
+  if (!summary_exist) {
+    return;
+  }
+
+  auto summary_nodes = graph_->summary_nodes();
+  if (summary_nodes.empty()) {
+    return;
+  }
+
+  for (auto &node_item : summary_nodes) {
+    auto node = node_item.second.first;
+    size_t index = IntToSize(node_item.second.second);
+    MS_LOG(INFO) << "set summary node's ref count, node: " << node->fullname_with_scope() << " index: " << index;
+    if (kernel_output_refs_.find(node.get()) != kernel_output_refs_.end()) {
+      KernelRefCountPtr kernel_ref = kernel_output_refs_[node.get()][index];
+      kernel_ref->ref_count_ = kMaxRefCount;
+      kernel_ref->ref_count_dynamic_use_ = kMaxRefCount;
+    } else {
+      MS_LOG(WARNING) << "can't find summary node's kernel_def " << node->fullname_with_scope();
+    }
+  }
+}
+
 void MemReuseUtil::SetGraphOutputRefCount() {
   auto nodes = AnfAlgo::GetAllOutput(graph_->output(), {prim::kPrimTupleGetItem});
   for (const auto &node : nodes) {
@@ -336,6 +361,7 @@ void MemReuseUtil::SetAllInfo(KernelGraph *graph) {
   }
   SetKernelDefMap();
   SetReuseRefCount();
+  SetSummaryNodesRefCount();
   SetWorkSpaceList();
 #ifdef MEM_REUSE_DEBUG
   MemReuseChecker::GetInstance().CheckMemReuseIR(total_refs_list_, kernel_def_ptr_list_, graph);

mindspore/ccsrc/pre_activate/mem_reuse/mem_reuse.h

@@ -63,6 +63,7 @@ class MemReuseUtil {
   void SetWkMap(const CNodePtr &kernel, KernelDef *kernel_def_ptr);
   void SetKernelDefInputs();
   void SetReuseRefCount();
+  void SetSummaryNodesRefCount();
   // Set the reference count of graph output specially.
   void SetGraphOutputRefCount();
   // Reset the dynamic used reference count by ref_count_.

mindspore/ccsrc/session/kernel_graph.h

@@ -142,7 +142,7 @@ class KernelGraph : public FuncGraph {
   bool get_output_null() { return null_output_; }
   void set_output_null(bool is_output_null) { null_output_ = is_output_null; }
   void PrintGraphExecuteOrder() const;
-  std::map<std::string, std::pair<AnfNodePtr, int>> &summary_nodes() { return summary_nodes_; }
+  const std::map<std::string, std::pair<AnfNodePtr, int>> &summary_nodes() const { return summary_nodes_; }
   void set_summary_nodes(const std::map<std::string, std::pair<AnfNodePtr, int>> &nodes) { summary_nodes_ = nodes; }
 
  private: