Merge pull request #5036 from luotao1/nccl

fix nccl compiler error

cmake/external/nccl.cmake

@@ -2,7 +2,7 @@ INCLUDE(ExternalProject)
 
 SET(NCCL_SOURCE_DIR ${THIRD_PARTY_PATH}/nccl)
 
-INCLUDE_DIRECTORIES(${NCCL_SOURCE_DIR}/src/extern_nccl)
+INCLUDE_DIRECTORIES(${NCCL_SOURCE_DIR}/src/extern_nccl/src)
 
 
 if(WITH_DSO)

paddle/operators/math/im2col.h

@@ -75,7 +75,8 @@ class Im2ColFunctor {
   void operator()(const platform::DeviceContext& context,
                   const framework::Tensor& im, framework::Tensor& col,
                   int stride_height, int stride_width, int padding_up,
-                  int padding_down, int padding_left, int padding_right);
+                  int padding_down, int padding_left = 0,
+                  int padding_right = 0);
 };
 
 template <ColFormat Format, typename Place, typename T>
@@ -84,7 +85,7 @@ class Col2ImFunctor {
   void operator()(const platform::DeviceContext& context, framework::Tensor& im,
                   const framework::Tensor& col, int stride_height,
                   int stride_width, int padding_up, int padding_down,
-                  int padding_left, int padding_right);
+                  int padding_left = 0, int padding_right = 0);
 };
 
 }  // namespace math