add whole graph optimize

ge/graph/manager/graph_manager.cc

@@ -737,6 +737,9 @@ Status GraphManager::PreRunAfterOptimizeSubGraph(const GraphNodePtr &graph_node,
                                                  GeRootModelPtr &ge_root_model, uint64_t session_id) {
   GE_CHECK_NOTNULL(graph_node);
   GE_CHECK_NOTNULL(compute_graph);
+
+  CompilerStages &stages = GetCompilerStages(graph_node->GetGraphId());
+  GM_RUN_AND_DUMP_PERF("OptimizeWholeGraph", stages.optimizer.OptimizeWholeGraph, compute_graph);
   GM_RUN_AND_DUMP_PERF("Optimize2", OptimizeStage2, compute_graph);
   GM_RUN_AND_DUMP_PERF("OptimizeGraphBeforeBuildForRts",
                        GetCompilerStages(graph_node->GetGraphId()).optimizer.OptimizeGraphBeforeBuildForRts,

ge/graph/optimize/graph_optimize.cc

@@ -336,4 +336,37 @@ Status GraphOptimize::IdentifyReference(ComputeGraphPtr &compute_graph) {
   }
   return SUCCESS;
 }
+Status GraphOptimize::OptimizeWholeGraph(ComputeGraphPtr &compute_graph) {
+  if (compute_graph == nullptr) {
+    GELOGE(GE_GRAPH_OPTIMIZE_COMPUTE_GRAPH_NULL, "[OptimizeWholeGraph]: compute_graph is nullptr.");
+    return GE_GRAPH_OPTIMIZE_COMPUTE_GRAPH_NULL;
+  }
+
+  std::shared_ptr<GELib> instance_ptr = ge::GELib::GetInstance();
+  if (instance_ptr == nullptr || !instance_ptr->InitFlag()) {
+    GELOGE(GE_CLI_GE_NOT_INITIALIZED, "OptimizeWholeGraph failed.");
+    return GE_CLI_GE_NOT_INITIALIZED;
+  }
+
+  auto graph_optimizer = instance_ptr->OpsKernelManagerObj().GetAllGraphOptimizerObjsByPriority();
+  GELOGI("optimize by opskernel in OptimizeWholeGraph. num of graph_optimizer is %zu.", graph_optimizer.size());
+  Status ret = SUCCESS;
+  string exclude_core_type = (core_type_ == kVectorCore) ? kAicoreEngine : kVectorEngine;
+  GELOGD("[OptimizeWholeGraph]: engine type will exclude: %s", exclude_core_type.c_str());
+  if (!graph_optimizer.empty()) {
+    for (auto &iter : graph_optimizer) {
+      if (iter.first == exclude_core_type || iter.second == nullptr) {
+        continue;
+      }
+      GELOGI("Begin to optimize whole graph by engine %s", iter.first.c_str());
+      ret = iter.second->OptimizeWholeGraph(*compute_graph);
+      GE_DUMP(compute_graph, "OptimizeWholeGraph" + iter.first);
+      if (ret != SUCCESS) {
+        GELOGE(ret, "[OptimizeWholeGraph]: graph optimize failed, ret:%u", ret);
+        return ret;
+      }
+    }
+  }
+  return ret;
+}
 }  // namespace ge

ge/graph/optimize/graph_optimize.h

@@ -52,6 +52,9 @@ class GraphOptimize {
   // for fe prepare optimize in quantize scene
   Status OptimizeOriginalGraphForQuantize(ComputeGraphPtr &compute_graph);
 
+  // for engine to optimize merged whole graph before ge Optimize2
+  Status OptimizeWholeGraph(ComputeGraphPtr &compute_graph);
+
   // for rts optimize before build to add attr and insert memcpy op
   Status OptimizeGraphBeforeBuildForRts(ComputeGraphPtr &compute_graph);