From 0441c2cc45feab5e5f7cc67fc2c196379b140589 Mon Sep 17 00:00:00 2001
From: chengduoZH <zhaochengduo@163.com>
Date: Sat, 5 May 2018 13:16:27 +0800
Subject: [PATCH] fix ci

---
 .../details/multi_devices_graph_builder.cc    | 30 +++++++++++--------
 .../details/multi_devices_graph_builder.h     |  4 ++-
 paddle/fluid/framework/details/var_handle.h   | 15 ++++------
 3 files changed, 27 insertions(+), 22 deletions(-)

diff --git a/paddle/fluid/framework/details/multi_devices_graph_builder.cc b/paddle/fluid/framework/details/multi_devices_graph_builder.cc
index da524cc79..37100b529 100644
--- a/paddle/fluid/framework/details/multi_devices_graph_builder.cc
+++ b/paddle/fluid/framework/details/multi_devices_graph_builder.cc
@@ -107,6 +107,10 @@ bool MultiDevSSAGraphBuilder::IsDistTrainOp(const OpDesc &op,
 
 std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(
     const ProgramDesc &program) const {
+  std::unordered_map<std::string, proto::VarType::Type> var_types;
+  for (auto *var : program.Block(0).AllVars()) {
+    var_types[var->Name()] = var->GetType();
+  }
   auto graph = new SSAGraph();
   SSAGraph &result = *graph;
   std::unordered_set<std::string> og_has_been_broadcast;
@@ -116,7 +120,7 @@ std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(
       std::unordered_map<std::string, std::vector<std::unique_ptr<VarHandle>>>>(
       places_.size());
 
-  size_t cur_update_sparse_gp_dev_id = 0;
+  size_t cur_dev_id = 0;
   std::vector<std::unordered_set<std::string>> sparse_var_name_on_devices;
   std::vector<std::unordered_set<std::string>> bcast_sparse_var_name_set;
 
@@ -156,14 +160,12 @@ std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(
         // broadcast, and each gradient is only broadcast once.
         for (auto &og : op->OutputArgumentNames()) {
           if (IsParameterGradientOnce(og, &og_has_been_broadcast)) {
-            if (IsSparseGradient(og)) {
-              CreateReduceOp(&result, cur_update_sparse_gp_dev_id, og);
-              sparse_var_name_on_devices[cur_update_sparse_gp_dev_id].emplace(
-                  og);
-              bcast_sparse_var_name_set[cur_update_sparse_gp_dev_id].emplace(
+            if (IsSparseGradient(var_types, og)) {
+              CreateReduceOp(&result, cur_dev_id, og);
+              sparse_var_name_on_devices[cur_dev_id].emplace(og);
+              bcast_sparse_var_name_set[cur_dev_id].emplace(
                   og.substr(0, og.size() - strlen(kGradVarSuffix)));
-              cur_update_sparse_gp_dev_id =
-                  (cur_update_sparse_gp_dev_id + 1) % places_.size();
+              cur_dev_id = (cur_dev_id + 1) % places_.size();
             } else {
               InsertNCCLAllReduceOp(&result, og);
             }
@@ -201,10 +203,14 @@ std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(
   return std::unique_ptr<SSAGraph>(graph);
 }
 
-bool MultiDevSSAGraphBuilder::IsSparseGradient(const std::string &og) const {
-  auto og_var = local_scopes_[0]->FindVar(og);
-  PADDLE_ENFORCE_NOT_NULL(og_var);
-  return og_var->IsType<SelectedRows>();
+bool MultiDevSSAGraphBuilder::IsSparseGradient(
+    const std::unordered_map<std::string, proto::VarType::Type> &var_types,
+    const std::string &og) const {
+  PADDLE_ENFORCE(var_types.count(og) != 0);
+  if (var_types.at(og) == proto::VarType::SELECTED_ROWS) {
+    return true;
+  }
+  return false;
 }
 
 int MultiDevSSAGraphBuilder::GetOpDeviceID(
diff --git a/paddle/fluid/framework/details/multi_devices_graph_builder.h b/paddle/fluid/framework/details/multi_devices_graph_builder.h
index cf40ea527..1672958b2 100644
--- a/paddle/fluid/framework/details/multi_devices_graph_builder.h
+++ b/paddle/fluid/framework/details/multi_devices_graph_builder.h
@@ -99,7 +99,9 @@ class MultiDevSSAGraphBuilder : public SSAGraphBuilder {
    */
   OpDesc *GetSendOpDesc(const ProgramDesc &program) const;
 
-  bool IsSparseGradient(const std::string &og) const;
+  bool IsSparseGradient(
+      const std::unordered_map<std::string, proto::VarType::Type> &var_types,
+      const std::string &og) const;
 };
 }  // namespace details
 }  // namespace framework
diff --git a/paddle/fluid/framework/details/var_handle.h b/paddle/fluid/framework/details/var_handle.h
index 2ccd76df8..7f30a6573 100644
--- a/paddle/fluid/framework/details/var_handle.h
+++ b/paddle/fluid/framework/details/var_handle.h
@@ -63,15 +63,12 @@ struct VarHandle : public VarHandleBase {
   platform::Place place_;
 
   // NOTE(zcd): Strictly speaking, if the two var_handle is equal, the four
-  // member
-  // variables(version_, scope_id_, name_, place_) must be equal. But sometimes
-  // judging whether the two var_handle is equal is actually to determine
-  // whether
-  // the two Variables that represented by var_handle is the same. And the same
-  // Variable may have many different var_handles, the version_ of these
-  // var_handles
-  // is different. So I don't take care of version_ temporarily when overloading
-  // equal.
+  // member variables(version_, scope_id_, name_, place_) must be equal. But
+  // sometimes judging whether the two var_handle is equal is actually to
+  // determine whether the two Variables that represented by var_handle is the
+  // same. And the same Variable may have many different var_handles, the
+  // version_ of these var_handles is different. So I don't take care of
+  // version_ temporarily when overloading equal.
   bool operator==(const VarHandle& o) const {
     return o.generated_op_ == generated_op_ && o.name_ == name_ &&
            o.scope_idx_ == scope_idx_;
-- 
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