Remove hack code

reyoung · reyoung · commit 1fa1352d59cc · 2018-06-07T16:23:19.000+08:00
diff --git a/paddle/fluid/framework/details/multi_devices_graph_builder.cc b/paddle/fluid/framework/details/multi_devices_graph_builder.cc
@@ -213,7 +213,7 @@ std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(
           var_name_on_devices[op_dev_id].emplace(var_name);
         }
       }
-      if (!is_forwarding) {
+      if (!is_forwarding && places_.size() > 1) {
         // Currently, we assume that once gradient is generated, it can be
         // broadcast, and each gradient is only broadcast once.
         if (static_cast<bool>(boost::get<int>(op->GetAttr(
diff --git a/python/paddle/fluid/__init__.py b/python/paddle/fluid/__init__.py
@@ -116,7 +116,7 @@ def __bootstrap__():
 
     read_env_flags = [
         'use_pinned_memory', 'check_nan_inf', 'benchmark', 'warpctc_dir',
-        'eager_delete_scope', 'debug_ssa_graphviz_filename'
+        'eager_delete_scope'
     ]
     if core.is_compiled_with_cuda():
         read_env_flags += [

Original file line number	Diff line number	Diff line change
`@@ -213,7 +213,7 @@ std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(`
`213`	`213`	`var_name_on_devices[op_dev_id].emplace(var_name);`
`214`	`214`	`}`
`215`	`215`	`}`
`216`		`- if (!is_forwarding) {`
	`216`	`+ if (!is_forwarding && places_.size() > 1) {`
`217`	`217`	`// Currently, we assume that once gradient is generated, it can be`
`218`	`218`	`// broadcast, and each gradient is only broadcast once.`
`219`	`219`	`if (static_cast<bool>(boost::get<int>(op->GetAttr(`
Original file line number	Diff line number	Diff line change
`@@ -116,7 +116,7 @@ def __bootstrap__():`
`116`	`116`
`117`	`117`	`read_env_flags = [`
`118`	`118`	`'use_pinned_memory', 'check_nan_inf', 'benchmark', 'warpctc_dir',`
`119`		`- 'eager_delete_scope', 'debug_ssa_graphviz_filename'`
	`119`	`+ 'eager_delete_scope'`
`120`	`120`	`]`
`121`	`121`	`if core.is_compiled_with_cuda():`
`122`	`122`	`read_env_flags += [`