From 1bc552b638ae74ad471908918b8b0de3b4f523ca Mon Sep 17 00:00:00 2001
From: guru4elephant <35550832+guru4elephant@users.noreply.github.com>
Date: Mon, 12 Nov 2018 14:42:14 +0800
Subject: [PATCH] Update async_executor.md

---
 .../design/async_executor/async_executor.md      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/doc/fluid/design/async_executor/async_executor.md b/doc/fluid/design/async_executor/async_executor.md
index 18445e968..e5d485194 100644
--- a/doc/fluid/design/async_executor/async_executor.md
+++ b/doc/fluid/design/async_executor/async_executor.md
@@ -102,6 +102,22 @@ void AsyncExecutor::RunFromFiles(
   }
   // fetch variables in scope 0, and return
 }
+
+```
+Inside the function ```CreateThreads```, 
+``` c++
+void AsyncExecutor::CreateThreads(const ExecutorThreadWorker* worker,
+                                  const ProgramDesc& main_program,
+                                  const DataFeed& reader,
+                                  const Scope& root_scope,
+                                  const int thread_index) {
+  worker->SetThreadid(thread_index);
+  worker->CreateThreadOperators(main_program);
+  worker->CreateThreadScope(main_program);
+  worker->BindingDataFeedMemory(reader);
+  worker->SetMainProgram(main_program);
+  worker->SetRootScope(root_scope);
+}
 ```
 Inside the function ```Trainfiles```, 
 ``` c++
-- 
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