diff --git a/.clang-format b/.clang-format
index 9ba433b17362424973626470d930356c2173dd84..5a30b52cf4b95445192a88f1768d211bc2f041fc 100644
--- a/.clang-format
+++ b/.clang-format
@@ -16,10 +16,7 @@
 ---
 Language:        Cpp
 BasedOnStyle:  Google
-IndentWidth:     2
-TabWidth:        2
-ContinuationIndentWidth: 4
-AccessModifierOffset: -2  # The private/protected/public has no indent in class
+UseTab		 Never
 Standard:  Cpp11 
 AllowAllParametersOfDeclarationOnNextLine: true
 BinPackParameters: false
diff --git a/paddle/CMakeLists.txt b/paddle/CMakeLists.txt
index 47ca1833967ee705d6558b1dad06a6335b30f03a..fc33def55691eb2d6f39db1077bfc34cc8ab6af4 100644
--- a/paddle/CMakeLists.txt
+++ b/paddle/CMakeLists.txt
@@ -17,11 +17,13 @@ add_subdirectory(strings)
 
 find_package(Boost QUIET)
 
-if(Boost_FOUND)
-  include_directories(${Boost_INCLUDE_DIRS})
-  include_directories(${CMAKE_CURRENT_SOURCE_DIR})
-  add_subdirectory(majel)
-endif()
+add_subdirectory(platform)
+
+# if(Boost_FOUND)
+#   include_directories(${Boost_INCLUDE_DIRS})
+#   include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+#   add_subdirectory(majel)
+# endif()
 
 if(WITH_C_API)
     add_subdirectory(capi)
diff --git a/paddle/platform/place.cc b/paddle/platform/place.cc
index ca50b37843e0ba047f8f8b8d24a3d3c131587382..d500c4cc7a0b46d4bb02812101dec60a150363ab 100644
--- a/paddle/platform/place.cc
+++ b/paddle/platform/place.cc
@@ -1,49 +1,46 @@
-#include "paddle/majel/place.h"
+#include "paddle/platform/place.h"
 
-namespace majel {
+namespace paddle {
+namespace platform {
 
 namespace detail {
 
 class PlacePrinter : public boost::static_visitor<> {
-private:
-  std::ostream& os_;
-
 public:
-  PlacePrinter(std::ostream& os) : os_(os) {}
+  PlacePrinter(std::ostream &os) : os_(os) {}
+  void operator()(const CpuPlace &) { os_ << "CpuPlace"; }
+  void operator()(const GpuPlace &p) { os_ << "GpuPlace(" << p.device << ")"; }
 
-  void operator()(const CpuPlace&) { os_ << "CpuPlace"; }
-
-  void operator()(const GpuPlace& p) { os_ << "GpuPlace(" << p.device << ")"; }
+private:
+  std::ostream &os_;
 };
 
-}  // namespace detail
+} // namespace detail
 
 static Place the_default_place;
 
-void set_place(const Place& place) { the_default_place = place; }
-
-const Place& get_place() { return the_default_place; }
+void set_place(const Place &place) { the_default_place = place; }
+const Place &get_place() { return the_default_place; }
 
 const GpuPlace default_gpu() { return GpuPlace(0); }
-
 const CpuPlace default_cpu() { return CpuPlace(); }
 
-bool is_gpu_place(const Place& p) {
+bool is_gpu_place(const Place &p) {
   return boost::apply_visitor(IsGpuPlace(), p);
 }
-
-bool is_cpu_place(const Place& p) {
+bool is_cpu_place(const Place &p) {
   return !boost::apply_visitor(IsGpuPlace(), p);
 }
 
-bool places_are_same_class(const Place& p1, const Place& p2) {
+bool places_are_same_class(const Place &p1, const Place &p2) {
   return is_gpu_place(p1) == is_gpu_place(p2);
 }
 
-std::ostream& operator<<(std::ostream& os, const majel::Place& p) {
-  majel::detail::PlacePrinter printer(os);
+std::ostream &operator<<(std::ostream &os, const Place &p) {
+  detail::PlacePrinter printer(os);
   boost::apply_visitor(printer, p);
   return os;
 }
 
-}  // namespace majel
+} // namespace platform
+} // namespace paddle
diff --git a/paddle/platform/place.h b/paddle/platform/place.h
index ad3dc3fe0b80ac5dc10a59910c580d7912469cd4..ca1b76ef4b8b7d8a38b3e80b9b798ee392e60a1e 100644
--- a/paddle/platform/place.h
+++ b/paddle/platform/place.h
@@ -2,49 +2,48 @@
 #include <boost/variant.hpp>
 #include <iostream>
 
-namespace majel {
+namespace paddle {
+namespace platform {
 
 struct CpuPlace {
-  CpuPlace() {}  // WORKAROUND: for some reason, omitting this constructor
-                 // causes errors with boost 1.59 and OSX
-  // needed for variant equality comparison
-  inline bool operator==(const CpuPlace&) const { return true; }
+  // WORKAROUND: for some reason, omitting this constructor
+  // causes errors with boost 1.59 and OSX
+  CpuPlace() {}
 
-  inline bool operator!=(const CpuPlace&) const { return false; }
+  // needed for variant equality comparison
+  inline bool operator==(const CpuPlace &) const { return true; }
+  inline bool operator!=(const CpuPlace &) const { return false; }
 };
 
 struct GpuPlace {
+  GpuPlace() : GpuPlace(0) {}
   GpuPlace(int d) : device(d) {}
 
   // needed for variant equality comparison
-  inline bool operator==(const GpuPlace& o) const { return device == o.device; }
-
-  inline bool operator!=(const GpuPlace& o) const { return !(*this == o); }
+  inline bool operator==(const GpuPlace &o) const { return device == o.device; }
+  inline bool operator!=(const GpuPlace &o) const { return !(*this == o); }
 
-  GpuPlace() : GpuPlace(0) {}
   int device;
 };
 
-class IsGpuPlace : public boost::static_visitor<bool> {
-public:
-  bool operator()(const CpuPlace&) const { return false; }
-
-  bool operator()(const GpuPlace& gpu) const { return true; }
+struct IsGpuPlace : public boost::static_visitor<bool> {
+  bool operator()(const CpuPlace &) const { return false; }
+  bool operator()(const GpuPlace &gpu) const { return true; }
 };
 
 typedef boost::variant<GpuPlace, CpuPlace> Place;
 
-void set_place(const Place&);
-
-const Place& get_place();
+void set_place(const Place &);
+const Place &get_place();
 
 const GpuPlace default_gpu();
 const CpuPlace default_cpu();
 
-bool is_gpu_place(const Place&);
-bool is_cpu_place(const Place&);
-bool places_are_same_class(const Place&, const Place&);
+bool is_gpu_place(const Place &);
+bool is_cpu_place(const Place &);
+bool places_are_same_class(const Place &, const Place &);
 
-std::ostream& operator<<(std::ostream&, const majel::Place&);
+std::ostream &operator<<(std::ostream &, const Place &);
 
-}  // namespace majel
+} // namespace platform
+} // namespace paddle
diff --git a/paddle/platform/place_test.cc b/paddle/platform/place_test.cc
index 6a099ae6b6e4f63a6ce845ab17eaab6e12c2c0b0..9cd9c25b167c13773d2f1df4f73529c1bf814fc7 100644
--- a/paddle/platform/place_test.cc
+++ b/paddle/platform/place_test.cc
@@ -1,10 +1,10 @@
-#include "paddle/majel/place.h"
-#include <sstream>
+#include "paddle/platform/place.h"
 #include "gtest/gtest.h"
+#include <sstream>
 
 TEST(Place, Equality) {
-  majel::CpuPlace cpu;
-  majel::GpuPlace g0(0), g1(1), gg0(0);
+  paddle::platform::CpuPlace cpu;
+  paddle::platform::GpuPlace g0(0), g1(1), gg0(0);
 
   EXPECT_EQ(cpu, cpu);
   EXPECT_EQ(g0, g0);
@@ -13,28 +13,28 @@ TEST(Place, Equality) {
 
   EXPECT_NE(g0, g1);
 
-  EXPECT_TRUE(majel::places_are_same_class(g0, gg0));
-  EXPECT_FALSE(majel::places_are_same_class(g0, cpu));
+  EXPECT_TRUE(paddle::platform::places_are_same_class(g0, gg0));
+  EXPECT_FALSE(paddle::platform::places_are_same_class(g0, cpu));
 }
 
 TEST(Place, Default) {
-  EXPECT_TRUE(majel::is_gpu_place(majel::get_place()));
-  EXPECT_TRUE(majel::is_gpu_place(majel::default_gpu()));
-  EXPECT_TRUE(majel::is_cpu_place(majel::default_cpu()));
+  EXPECT_TRUE(paddle::platform::is_gpu_place(paddle::platform::get_place()));
+  EXPECT_TRUE(paddle::platform::is_gpu_place(paddle::platform::default_gpu()));
+  EXPECT_TRUE(paddle::platform::is_cpu_place(paddle::platform::default_cpu()));
 
-  majel::set_place(majel::CpuPlace());
-  EXPECT_TRUE(majel::is_cpu_place(majel::get_place()));
+  paddle::platform::set_place(paddle::platform::CpuPlace());
+  EXPECT_TRUE(paddle::platform::is_cpu_place(paddle::platform::get_place()));
 }
 
 TEST(Place, Print) {
   {
     std::stringstream ss;
-    ss << majel::GpuPlace(1);
+    ss << paddle::platform::GpuPlace(1);
     EXPECT_EQ("GpuPlace(1)", ss.str());
   }
   {
     std::stringstream ss;
-    ss << majel::CpuPlace();
+    ss << paddle::platform::CpuPlace();
     EXPECT_EQ("CpuPlace", ss.str());
   }
 }