add new exec head;

paddle/fluid/framework/new_exec_test.cc

+#include <iostream>
+#include <string>
+
+#include <map>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "paddle/fluid/framework/executor_gc_helper.h"
+#include "paddle/fluid/framework/garbage_collector.h"
+#include "paddle/fluid/framework/op_info.h"
+#include "paddle/fluid/framework/program_desc.h"
+#include "paddle/fluid/framework/scope.h"
+#include "paddle/fluid/framework/tensor.h"
+#include "paddle/fluid/platform/device_context.h"
+#include "paddle/fluid/framework/variable.h"
+#include "paddle/fluid/framework/op_registry.h"
+#include "paddle/fluid/framework/operator.h"
+
+#include "paddle/fluid/pybind/pybind.h"
+
+#include "paddle/fluid/platform/init.h"
+#include "paddle/fluid/framework/new_exec.h"
+
+#include <chrono>
+#include <gperftools/profiler.h>
+
+
+int main()
+{   
+    paddle::framework::InitDevices();
+    paddle::framework::VariableScope global_scope;
+
+    
+    {
+        auto test_prog = paddle::framework::load_from_file( "lm_startup_program");
+        paddle::framework::build_variable_scope( test_prog, &global_scope );
+
+
+        std::vector<paddle::framework::OpFuncNode> vec_func_list;
+        std::vector<std::unique_ptr<paddle::framework::OperatorBase>> op_list;
+        paddle::framework::build_op_func_list( test_prog, op_list, vec_func_list, global_scope);
+
+        paddle::framework::exec_op_func_list( vec_func_list, op_list, global_scope ); 
+    }
+
+    cerr << "run main" << endl;
+    auto main_prog = paddle::framework::load_from_file( "lm_main_program");
+
+    paddle::framework::build_variable_scope( main_prog, &global_scope );
+
+
+    std::vector<paddle::framework::OpFuncNode> vec_main_func_list;
+    std::vector<std::unique_ptr<paddle::framework::OperatorBase>> op_main_list;
+    paddle::framework::build_op_func_list( main_prog, op_main_list, vec_main_func_list, global_scope);
+
+    auto start = std::chrono::steady_clock::now();
+    //ProfilerStart("new_executor.prof");
+    for ( size_t i = 0; i < 2320; ++i )
+    {
+        if( i % 200 == 0)
+        {   
+            cerr << i << endl;
+        }
+        paddle::framework::exec_op_func_list( vec_main_func_list, op_main_list, global_scope ); 
+    }
+    //ProfilerStop();
+    auto end = std::chrono::steady_clock::now();
+    std::chrono::duration<double> diff = end-start;
+
+    cerr << "time cost " << diff.count() << endl;
+
+
+    return 1;
+
+}