add .clang-format file

paddle/operators/math/.clang-format

+---
+Language:        Cpp
+BasedOnStyle:  Google
+Standard:  Cpp11
+...

paddle/operators/math/math_function.cu

@@ -14,25 +14,15 @@ limitations under the License. */
 
 #include "paddle/operators/math/math_function.h"
 
-
 namespace paddle {
 namespace operators {
 namespace math {
 
 template <>
-void gemm<platform::GPUPlace, float>(const CBLAS_TRANSPOSE transA,
-                                     const CBLAS_TRANSPOSE transB,
-                                     const int M,
-                                     const int N,
-                                     const int K,
-                                     const float alpha,
-                                     const float* A,
-                                     const int lda,
-                                     const float* B,
-                                     const int ldb,
-                                     const float beta,
-                                     float* C,
-                                     const int ldc,
+void gemm<platform::GPUPlace, float>(
+    const CBLAS_TRANSPOSE transA, const CBLAS_TRANSPOSE transB, const int M,
+    const int N, const int K, const float alpha, const float* A, const int lda,
+    const float* B, const int ldb, const float beta, float* C, const int ldc,
     platform::DeviceContext* context) {
   // Note that cublas follows fortran order, so the order is different from
   // the cblas convention.
@@ -42,38 +32,16 @@ void gemm<platform::GPUPlace, float>(const CBLAS_TRANSPOSE transA,
       (transB == CblasNoTrans) ? CUBLAS_OP_N : CUBLAS_OP_T;
 
   PADDLE_ENFORCE(platform::dynload::cublasSgemm(
-      reinterpret_cast<platform::CUDADeviceContext*>(context)->
-        cublas_handle(),
-      cuTransB,
-      cuTransA,
-      N,
-      M,
-      K,
-      &alpha,
-      B,
-      ldb,
-      A,
-      lda,
-      &beta,
-      C,
-      ldc));
+      reinterpret_cast<platform::CUDADeviceContext*>(context)->cublas_handle(),
+      cuTransB, cuTransA, N, M, K, &alpha, B, ldb, A, lda, &beta, C, ldc));
 }
 
 template <>
-void gemm<platform::GPUPlace, double>(const CBLAS_TRANSPOSE transA,
-                                      const CBLAS_TRANSPOSE transB,
-                                      const int M,
-                                      const int N,
-                                      const int K,
-                                      const double alpha,
-                                      const double* A,
-                                      const int lda,
-                                      const double* B,
-                                      const int ldb,
-                                      const double beta,
-                                      double* C,
-                                      const int ldc,
-                                      platform::DeviceContext* context) {
+void gemm<platform::GPUPlace, double>(
+    const CBLAS_TRANSPOSE transA, const CBLAS_TRANSPOSE transB, const int M,
+    const int N, const int K, const double alpha, const double* A,
+    const int lda, const double* B, const int ldb, const double beta, double* C,
+    const int ldc, platform::DeviceContext* context) {
   // Note that cublas follows fortran order, so the order is different from
   // the cblas convention.
   cublasOperation_t cuTransA =
@@ -81,36 +49,30 @@ void gemm<platform::GPUPlace, double>(const CBLAS_TRANSPOSE transA,
   cublasOperation_t cuTransB =
       (transB == CblasNoTrans) ? CUBLAS_OP_N : CUBLAS_OP_T;
   PADDLE_ENFORCE(platform::dynload::cublasDgemm(
-      reinterpret_cast<platform::CUDADeviceContext*>(context)->
-        cublas_handle(),
-      cuTransB,
-      cuTransA,
-      N,
-      M,
-      K,
-      &alpha,
-      B,
-      ldb,
-      A,
-      lda,
-      &beta,
-      C,
-      ldc));
+      reinterpret_cast<platform::CUDADeviceContext*>(context)->cublas_handle(),
+      cuTransB, cuTransA, N, M, K, &alpha, B, ldb, A, lda, &beta, C, ldc));
 }
 
 template <>
-void matmul<platform::GPUPlace, float>(const framework::Tensor& in1, bool in1_T, const framework::Tensor& in2, bool in2_T, float alpha, 
-framework::Tensor* out, float beta, platform::DeviceContext* context) {
+void matmul<platform::GPUPlace, float>(const framework::Tensor& in1, bool in1_T,
+                                       const framework::Tensor& in2, bool in2_T,
+                                       float alpha, framework::Tensor* out,
+                                       float beta,
+                                       platform::DeviceContext* context) {
   auto in1_dim = in1.dims();
   auto in2_dim = in2.dims();
   auto out_dim = out->dims();
-  PADDLE_ENFORCE(in1_dim.size() == 2 && in2_dim.size() == 2 && out_dim.size() == 2,
+  PADDLE_ENFORCE(
+      in1_dim.size() == 2 && in2_dim.size() == 2 && out_dim.size() == 2,
       "The input and output of matmul be matrix");
   PADDLE_ENFORCE(
       in1_dim[1] == in2_dim[0],
       "First matrix's width must be equal with second matrix's height.");
 
-   PADDLE_ENFORCE(platform::is_gpu_place(in1.place()) && platform::is_gpu_place(in2.place())&& platform::is_gpu_place(out->place()), "Matrix must all be in GPUPlace");     
+  PADDLE_ENFORCE(platform::is_gpu_place(in1.place()) &&
+                     platform::is_gpu_place(in2.place()) &&
+                     platform::is_gpu_place(out->place()),
+                 "Matrix must all be in GPUPlace");
 
   int M = out_dim[0];
   int N = out_dim[1];
@@ -119,59 +81,44 @@ framework::Tensor* out, float beta, platform::DeviceContext* context) {
   CBLAS_TRANSPOSE in1_Trans = (in1_T == false) ? CblasNoTrans : CblasTrans;
   CBLAS_TRANSPOSE in2_Trans = (in1_T == false) ? CblasNoTrans : CblasTrans;
 
-  gemm<platform::GPUPlace, float>(in1_Trans,
-                                  in2_Trans,
-                                  M,
-                                  N,
-                                  K,
-                                  alpha,
-                                  in1.data<float>(),
-                                  K,
-                                  in2.data<float>(),
-                                  N,
-                                  beta,
-                                  out->data<float>(),
-                                  N,
-                                  context);
-  
+  gemm<platform::GPUPlace, float>(in1_Trans, in2_Trans, M, N, K, alpha,
+                                  in1.data<float>(), K, in2.data<float>(), N,
+                                  beta, out->data<float>(), N, context);
 }
 
-
 template <>
-void matmul<platform::GPUPlace, double>(const framework::Tensor& in1, bool in1_T, const framework::Tensor& in2, bool in2_T, float alpha, 
-framework::Tensor* out, float beta, platform::DeviceContext* context) {
+void matmul<platform::GPUPlace, double>(const framework::Tensor& in1,
+                                        bool in1_T,
+                                        const framework::Tensor& in2,
+                                        bool in2_T, float alpha,
+                                        framework::Tensor* out, float beta,
+                                        platform::DeviceContext* context) {
   auto in1_dim = in1.dims();
   auto in2_dim = in2.dims();
   auto out_dim = out->dims();
-  PADDLE_ENFORCE(in1_dim.size() == 2 && in2_dim.size() == 2 && out_dim.size() == 2,
+  PADDLE_ENFORCE(
+      in1_dim.size() == 2 && in2_dim.size() == 2 && out_dim.size() == 2,
       "The input and output of matmul be matrix");
   PADDLE_ENFORCE(
       in1_dim[1] == in2_dim[0],
       "First matrix's width must be equal with second matrix's height.");
 
-        PADDLE_ENFORCE(platform::is_gpu_place(in1.place()) && platform::is_gpu_place(in2.place())&& platform::is_gpu_place(out->place()), "Matrix must all be in GPUPlace");
+  PADDLE_ENFORCE(platform::is_gpu_place(in1.place()) &&
+                     platform::is_gpu_place(in2.place()) &&
+                     platform::is_gpu_place(out->place()),
+                 "Matrix must all be in GPUPlace");
 
+  int M = out_dim[0];
+  int N = out_dim[1];
+  int K = in1_dim[1];
   CBLAS_TRANSPOSE in1_Trans = (in1_T == false) ? CblasNoTrans : CblasTrans;
   CBLAS_TRANSPOSE in2_Trans = (in1_T == false) ? CblasNoTrans : CblasTrans;
 
-        gemm<platform::GPUPlace, double>(in1_Trans,
-                                  in2_Trans,
-                                  M,
-                                  N,
-                                  K,
-                                  alpha,
-                                  in1.data<double>(),
-                                  K,
-                                  in2.data<double>(),
-                                  N,
-                                  beta,
-                                  out->data<double>(),
-                                  N,
-                                  context);
-
+  gemm<platform::GPUPlace, double>(in1_Trans, in2_Trans, M, N, K, alpha,
+                                   in1.data<double>(), K, in2.data<double>(), N,
+                                   beta, out->data<double>(), N, context);
 }
 
-
 }  // namespace math
 }  // namespace operators
 }  // namespace paddle