From c62ef22da37924d5cc08635b490c86910c474fa6 Mon Sep 17 00:00:00 2001
From: "Yang Yang(Tony)" <yangyang62@baidu.com>
Date: Tue, 13 Feb 2018 13:50:22 -0800
Subject: [PATCH] Update parallel_do.md

---
 doc/design/parallel_do.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/design/parallel_do.md b/doc/design/parallel_do.md
index 576d30329b6..5b90b507920 100644
--- a/doc/design/parallel_do.md
+++ b/doc/design/parallel_do.md
@@ -72,10 +72,12 @@ block0 {
        sgd(w1, w1_grad)
 }
 block1 {
+  parent_block: 0
   vars: data, h1, h2, loss
   ops: fc, fc, softmax
 }
 block2 {
+  parent_block: 1
   vars: data_grad, h1_grad, h2_grad, loss_gard, w1_grad, w2_grad
   ops: softmax_grad,
        fc_grad
@@ -122,6 +124,7 @@ block0 {
   parallel_do(block1)
 }
 block1 {
+  parent_block: 0
   vars: w1, w2
   ops: init(w1), init(w2)
 }
@@ -137,16 +140,19 @@ block0 {
        
 }
 block1 {
+  parent_block: 0
   vars: data, h1, h2, loss
   ops: fc, fc, softmax
 }
 block2 {
+  parent_block: 1
   vars: data_grad, h1_grad, h2_grad, loss_gard, w1_grad, w2_grad
   ops: softmax_grad,
        fc_grad, allreduce(places, scopes, w1_grad),
        fc_grad, allreduce(places, scopes, w2_grad)
 }
 block3 {
+  parent_block: 0
   vars: lr
   ops: sgd(w2, w2_grad),
        sgd(w1, w1_grad)
-- 
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