diff --git a/paddle/platform/cublas.h b/paddle/platform/cublas.h
index d60eb501e9be5b768ab691556b9b228bd8d476b0..90704f37e643a3bfe318a949762fc4075666e707 100644
--- a/paddle/platform/cublas.h
+++ b/paddle/platform/cublas.h
@@ -1,7 +1,24 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+
 #include <cublas_v2.h>
 #include "paddle/platform/dynamic_loader.h"
 
 namespace paddle {
+namespace platform {
 namespace dyload {
 
 std::once_flag cublas_dso_flag;
@@ -15,15 +32,17 @@ void *cublas_dso_handle = nullptr;
  * note: default dynamic linked libs
  */
 #ifdef PADDLE_USE_DSO
-#define DYNAMIC_LOAD_CUBLAS_WRAP(__name)                                       \
-  struct DynLoad__##__name {                                                   \
-    template <typename... Args>                                                \
-    cublasStatus_t operator()(Args... args) {                                  \
-      typedef cublasStatus_t (*cublasFunc)(Args...);                           \
-      std::call_once(cublas_dso_flag, GetCublasDsoHandle, &cublas_dso_handle); \
-      void *p_##__name = dlsym(cublas_dso_handle, #__name);                    \
-      return reinterpret_cast<cublasFunc>(p_##__name)(args...);                \
-    }                                                                          \
+#define DYNAMIC_LOAD_CUBLAS_WRAP(__name)                           \
+  struct DynLoad__##__name {                                       \
+    template <typename... Args>                                    \
+    cublasStatus_t operator()(Args... args) {                      \
+      typedef cublasStatus_t (*cublasFunc)(Args...);               \
+      std::call_once(cublas_dso_flag,                              \
+                     paddle::platform::dyload::GetCublasDsoHandle, \
+                     &cublas_dso_handle);                          \
+      void *p_##__name = dlsym(cublas_dso_handle, #__name);        \
+      return reinterpret_cast<cublasFunc>(p_##__name)(args...);    \
+    }                                                              \
   } __name;  // struct DynLoad__##__name
 #else
 #define DYNAMIC_LOAD_CUBLAS_WRAP(__name)      \
@@ -68,17 +87,18 @@ CUBLAS_BLAS_ROUTINE_EACH(DYNAMIC_LOAD_CUBLAS_V2_WRAP)
 
 // clang-format on
 #ifndef PADDLE_TYPE_DOUBLE
-#define CUBLAS_GEAM dynload::cublasSgeam
-#define CUBLAS_GEMV dynload::cublasSgemv
-#define CUBLAS_GEMM dynload::cublasSgemm
-#define CUBLAS_GETRF dynload::cublasSgetrfBatched
-#define CUBLAS_GETRI dynload::cublasSgetriBatched
+#define CUBLAS_GEAM paddle::platform::dynload::cublasSgeam
+#define CUBLAS_GEMV paddle::platform::dynload::cublasSgemv
+#define CUBLAS_GEMM paddle::platform::dynload::cublasSgemm
+#define CUBLAS_GETRF paddle::platform::dynload::cublasSgetrfBatched
+#define CUBLAS_GETRI paddle::platform::dynload::cublasSgetriBatched
 #else
-#define CUBLAS_GEAM dynload::cublasDgeam
-#define CUBLAS_GEMV dynload::cublasDgemv
-#define CUBLAS_GEMM dynload::cublasDgemm
-#define CUBLAS_GETRF dynload::cublasDgetrfBatched
-#define CUBLAS_GETRI dynload::cublasDgetriBatched
+#define CUBLAS_GEAM paddle::platform::dynload::cublasDgeam
+#define CUBLAS_GEMV paddle::platform::dynload::cublasDgemv
+#define CUBLAS_GEMM paddle::platform::dynload::cublasDgemm
+#define CUBLAS_GETRF paddle::platform::dynload::cublasDgetrfBatched
+#define CUBLAS_GETRI paddle::platform::dynload::cublasDgetriBatched
 #endif
 }  // namespace dyload
+}  // namespace platform
 }  // namespace paddle
diff --git a/paddle/platform/cudnn.h b/paddle/platform/cudnn.h
index ab878cd55528fca24a8c49878173354a80b3281c..06e2a05d862620fae9d61a35d84530dd8f34018f 100644
--- a/paddle/platform/cudnn.h
+++ b/paddle/platform/cudnn.h
@@ -1,7 +1,24 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+
 #include <cudnn.h>
 #include "paddle/platform/dynamic_loader.h"
 
 namespace paddle {
+namespace platform {
 namespace dyload {
 
 std::once_flag cudnn_dso_flag;
@@ -9,15 +26,17 @@ void* cudnn_dso_handle = nullptr;
 
 #ifdef PADDLE_USE_DSO
 
-#define DYNAMIC_LOAD_CUDNN_WRAP(__name)                                     \
-  struct DynLoad__##__name {                                                \
-    template <typename... Args>                                             \
-    auto operator()(Args... args) -> decltype(__name(args...)) {            \
-      using cudnn_func = decltype(__name(args...)) (*)(Args...);            \
-      std::call_once(cudnn_dso_flag, GetCudnnDsoHandle, &cudnn_dso_handle); \
-      void* p_##__name = dlsym(cudnn_dso_handle, #__name);                  \
-      return reinterpret_cast<cudnn_func>(p_##__name)(args...);             \
-    }                                                                       \
+#define DYNAMIC_LOAD_CUDNN_WRAP(__name)                           \
+  struct DynLoad__##__name {                                      \
+    template <typename... Args>                                   \
+    auto operator()(Args... args) -> decltype(__name(args...)) {  \
+      using cudnn_func = decltype(__name(args...)) (*)(Args...);  \
+      std::call_once(cudnn_dso_flag,                              \
+                     paddle::platform::dyload::GetCudnnDsoHandle, \
+                     &cudnn_dso_handle);                          \
+      void* p_##__name = dlsym(cudnn_dso_handle, #__name);        \
+      return reinterpret_cast<cudnn_func>(p_##__name)(args...);   \
+    }                                                             \
   } __name; /* struct DynLoad__##__name */
 
 #else
@@ -111,4 +130,5 @@ CUDNN_DNN_ROUTINE_EACH_R5(DYNAMIC_LOAD_CUDNN_WRAP)
 #undef CUDNN_DNN_ROUTINE_EACH
 // clang-format on
 }  // namespace dyload
+}  // namespace platform
 }  // namespace paddle
diff --git a/paddle/platform/curand.h b/paddle/platform/curand.h
index edff6526bd8132b4f0c97521e45bbc0262cef5ae..a9cbe48ef81808e5a71ee819ad87c803938affc1 100644
--- a/paddle/platform/curand.h
+++ b/paddle/platform/curand.h
@@ -1,20 +1,39 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+
 #include <curand.h>
 #include "paddle/platform/dynamic_loader.h"
 
 namespace paddle {
+namespace platform {
 namespace dyload {
 std::once_flag curand_dso_flag;
 void *curand_dso_handle = nullptr;
 #ifdef PADDLE_USE_DSO
-#define DYNAMIC_LOAD_CURAND_WRAP(__name)                                       \
-  struct DynLoad__##__name {                                                   \
-    template <typename... Args>                                                \
-    curandStatus_t operator()(Args... args) {                                  \
-      typedef curandStatus_t (*curandFunc)(Args...);                           \
-      std::call_once(curand_dso_flag, GetCurandDsoHandle, &curand_dso_handle); \
-      void *p_##__name = dlsym(curand_dso_handle, #__name);                    \
-      return reinterpret_cast<curandFunc>(p_##__name)(args...);                \
-    }                                                                          \
+#define DYNAMIC_LOAD_CURAND_WRAP(__name)                           \
+  struct DynLoad__##__name {                                       \
+    template <typename... Args>                                    \
+    curandStatus_t operator()(Args... args) {                      \
+      typedef curandStatus_t (*curandFunc)(Args...);               \
+      std::call_once(curand_dso_flag,                              \
+                     paddle::platform::dyload::GetCurandDsoHandle, \
+                     &curand_dso_handle);                          \
+      void *p_##__name = dlsym(curand_dso_handle, #__name);        \
+      return reinterpret_cast<curandFunc>(p_##__name)(args...);    \
+    }                                                              \
   } __name; /* struct DynLoad__##__name */
 #else
 #define DYNAMIC_LOAD_CURAND_WRAP(__name)      \
@@ -41,5 +60,6 @@ CURAND_RAND_ROUTINE_EACH(DYNAMIC_LOAD_CURAND_WRAP)
 
 #undef CURAND_RAND_ROUTINE_EACH
 #undef DYNAMIC_LOAD_CURAND_WRAP
-}
+}  // namespace dyload
+}  // namespace platform
 }  // namespace paddle
diff --git a/paddle/platform/dynamic_loader.cc b/paddle/platform/dynamic_loader.cc
index c34abc392c46c42e32ae9d69866328dffbd804ec..9e0aadf8e29398d93be148c2b050ce36bdbe687c 100644
--- a/paddle/platform/dynamic_loader.cc
+++ b/paddle/platform/dynamic_loader.cc
@@ -13,8 +13,12 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "dynamic_loader.h"
-#include <gflags/gflags.h>
-#include <glog/logging.h>
+#include <dlfcn.h>
+#include <memory>
+#include <mutex>
+#include <string>
+#include "gflags/gflags.h"
+#include "glog/logging.h"
 
 DEFINE_string(cudnn_dir, "",
               "Specify path for loading libcudnn.so. For instance, "
@@ -30,6 +34,10 @@ DEFINE_string(warpctc_dir, "", "Specify path for loading libwarpctc.so.");
 
 DEFINE_string(lapack_dir, "", "Specify path for loading liblapack.so.");
 
+namespace paddle {
+namespace platform {
+namespace dyload {
+
 static inline std::string join(const std::string& part1,
                                const std::string& part2) {
   // directory separator
@@ -155,3 +163,7 @@ void GetLapackDsoHandle(void** dso_handle) {
   GetDsoHandleFromSearchPath(FLAGS_lapack_dir, "liblapacke.so", dso_handle);
 #endif
 }
+
+}  // namespace dyload
+}  // namespace platform
+}  // namespace paddle
diff --git a/paddle/platform/dynamic_loader.h b/paddle/platform/dynamic_loader.h
index 9b5ad21724afd7176f958619e7e10d12dc08fa49..bb58fcba17326a42df33cf12599360e3d9a8c9ce 100644
--- a/paddle/platform/dynamic_loader.h
+++ b/paddle/platform/dynamic_loader.h
@@ -12,13 +12,11 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#ifndef DYNAMIC_LOAD_H_
-#define DYNAMIC_LOAD_H_
+#pragma once
 
-#include <dlfcn.h>
-#include <memory>
-#include <mutex>
-#include <string>
+namespace paddle {
+namespace platform {
+namespace dyload {
 
 /**
  * @brief    load the DSO of CUBLAS
@@ -60,4 +58,6 @@ void GetWarpCTCDsoHandle(void** dso_handle);
  */
 void GetLapackDsoHandle(void** dso_handle);
 
-#endif  // DYNAMIC_LOAD_H_
+}  // namespace dyload
+}  // namespace platform
+}  // namespace paddle