fix build error with testing and gpu on (#10932)

Yancey · web-flow · commit c770d5c0ba55 · 2018-05-25T16:27:40.000+08:00
diff --git a/paddle/fluid/operators/detail/sendrecvop_utils.cc b/paddle/fluid/operators/detail/sendrecvop_utils.cc
@@ -149,12 +149,14 @@ void SerializeToByteBuffer(const std::string& name, framework::Variable* var,
   }
 
   if (platform::is_gpu_place(ctx.GetPlace())) {
+#ifdef PADDLE_WITH_CUDA
     // GPU data is copied to CPU buffer when sending,
     // free the buffer when possible.
     destroy_callback = [](void* backing) {
       platform::CUDAPinnedPlace cuda_pinned;
       memory::Free(cuda_pinned, backing);
     };
+#endif
   }
 
   std::string header;

Original file line number	Diff line number	Diff line change
`@@ -149,12 +149,14 @@ void SerializeToByteBuffer(const std::string& name, framework::Variable* var,`
`149`	`149`	`}`
`150`	`150`
`151`	`151`	`if (platform::is_gpu_place(ctx.GetPlace())) {`
	`152`	`+#ifdef PADDLE_WITH_CUDA`
`152`	`153`	`// GPU data is copied to CPU buffer when sending,`
`153`	`154`	`// free the buffer when possible.`
`154`	`155`	`destroy_callback = [](void* backing) {`
`155`	`156`	`platform::CUDAPinnedPlace cuda_pinned;`
`156`	`157`	`memory::Free(cuda_pinned, backing);`
`157`	`158`	`};`
	`159`	`+#endif`
`158`	`160`	`}`
`159`	`161`
`160`	`162`	`std::string header;`