Merge pull request #8859 from chengduoZH/feature/refine_exe_log

Add log before op Run

Author: chengduo

paddle/fluid/framework/executor.cc

@@ -125,8 +125,9 @@ void Executor::Run(const ProgramDesc& pdesc, Scope* scope, int block_id,
   for (auto& op_desc : block.AllOps()) {
     auto op = paddle::framework::OpRegistry::CreateOp(*op_desc);
 
-    VLOG(3) << place_ << " " << op->DebugStringEx(local_scope);
+    VLOG(4) << place_ << " " << op->DebugStringEx(local_scope);
     op->Run(*local_scope, place_);
+    VLOG(3) << place_ << " " << op->DebugStringEx(local_scope);
 
     if (FLAGS_benchmark) {
       VLOG(2) << "Memory used after operator " + op->Type() + " running: "