add gemm for both cpu and gpu

paddle/framework/operator.h

@@ -257,6 +257,10 @@ class ExecutionContext : public OperatorContext {
 
   platform::Place GetPlace() const { return device_context_.GetPlace(); }
 
+  const platform::DeviceContext& device_context() const {
+    return device_context_;
+  };
+
   const platform::DeviceContext& device_context_;
 };
 

paddle/operators/CMakeLists.txt

@@ -41,13 +41,15 @@ function(op_library TARGET)
     endif()
 endfunction()
 
+add_subdirectory(math)
+
 op_library(add_op SRCS add_op.cc add_op.cu)
 cc_test(add_op_test SRCS add_op_test.cc DEPS add_op)
 
 op_library(mean_op SRCS mean_op.cc mean_op.cu)
 cc_test(mean_op_test SRCS mean_op_test.cc DEPS mean_op)
 
-op_library(mul_op SRCS mul_op.cc mul_op.cu)
+op_library(mul_op SRCS mul_op.cc mul_op.cu DEPS math_function)
 op_library(rowwise_add_op SRCS rowwise_add_op.cu rowwise_add_op.cc)
 
 op_library(sigmoid_op SRCS sigmoid_op.cc sigmoid_op.cu)

paddle/operators/math/CMakeLists.txt

+if (WITH_GPU)
+    nv_library(math_function SRCS math_function.cc math_function.cu DEPS cblas device_context)
+else()
+    cc_library(math_function SRCS math_function.cc DEPS cblas device_context)
+endif()    

paddle/operators/math/math_function.cc

+/* 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. */
+
+#include "paddle/operators/math/math_function.h"
+
+namespace paddle {
+namespace operators {
+namespace math {
+
+template <>
+void gemm<platform::CPUPlace, 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,
+                                     const platform::DeviceContext* context) {
+  cblas_sgemm(CblasRowMajor,
+              transA,
+              transB,
+              M,
+              N,
+              K,
+              alpha,
+              A,
+              lda,
+              B,
+              ldb,
+              beta,
+              C,
+              ldc);
+}
+
+template <>
+void gemm<platform::CPUPlace, 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,
+                                      const platform::DeviceContext* context) {
+  cblas_dgemm(CblasRowMajor,
+              transA,
+              transB,
+              M,
+              N,
+              K,
+              alpha,
+              A,
+              lda,
+              B,
+              ldb,
+              beta,
+              C,
+              ldc);
+}
+
+template <>
+void axpy<platform::CPUPlace, float>(const int n,
+                                     const float alpha,
+                                     const float* x,
+                                     float* y,
+                                     const platform::DeviceContext* context) {
+  cblas_saxpy(n, alpha, x, 1, y, 1);
+}
+
+template <>
+void axpy<platform::CPUPlace, double>(const int n,
+                                      const double alpha,
+                                      const double* x,
+                                      double* y,
+                                      const platform::DeviceContext* context) {
+  cblas_daxpy(n, alpha, x, 1, y, 1);
+}
+
+template <>
+float dotProduct<platform::CPUPlace, float>(
+    const int n,
+    const float* x,
+    const float* y,
+    const platform::DeviceContext* context) {
+  return cblas_sdot(n, x, 1, y, 1);
+}
+
+template <>
+double dotProduct<platform::CPUPlace, double>(
+    const int n,
+    const double* x,
+    const double* y,
+    const platform::DeviceContext* context) {
+  return cblas_ddot(n, x, 1, y, 1);
+}
+
+}  // namespace math
+}  // namespace operators
+}  // namespace paddle

paddle/operators/math/math_function.cu

+/* 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. */
+
+#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,
+                                    const platform::DeviceContext* context) {
+  // Note that cublas follows fortran order, so the order is different from
+  // the cblas convention.
+  cublasOperation_t cuTransA =
+      (TransA == CblasNoTrans) ? CUBLAS_OP_N : CUBLAS_OP_T;
+  cublasOperation_t cuTransB =
+      (TransB == CblasNoTrans) ? CUBLAS_OP_N : CUBLAS_OP_T;
+                     
+  PADDLE_ENFORCE(platform::dynload::cublasSgemm(
+      reinterpret_cast<const 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,
+                                      const platform::DeviceContext* context) {
+  // Note that cublas follows fortran order, so the order is different from
+  // the cblas convention.
+  cublasOperation_t cuTransA =
+      (TransA == CblasNoTrans) ? CUBLAS_OP_N : CUBLAS_OP_T;
+  cublasOperation_t cuTransB =
+      (TransB == CblasNoTrans) ? CUBLAS_OP_N : CUBLAS_OP_T;
+  PADDLE_ENFORCE(platform::dynload::cublasDgemm(
+      reinterpret_cast<const platform::CUDADeviceContext*>(context)->
+        cublas_handle(),
+      cuTransB,
+      cuTransA,
+      N,
+      M,
+      K,
+      &alpha,
+      B,
+      ldb,
+      A,
+      lda,
+      &beta,
+      C,
+      ldc));
+}
+
+
+template <>
+void axpy<platform::GPUPlace, float>(const int n, 
+                                     const float alpha,
+                                     const float* x,
+                                     float* y,
+                                     const platform::DeviceContext* context) {
+  CUBLAS_ENFORCE(platform::dynload::cublasSaxpy(
+    reinterpret_cast<const platform::CUDADeviceContext*>(context)->
+      cublas_handle(), N, &alpha, X, 1, Y, 1));
+}
+
+template <>
+void axpy<platform::GPUPlace, double>(const int n,
+                                      const double alpha,
+                                      const double* x,
+                                      double* y,
+                                      const platform::DeviceContext* context) {
+  CUBLAS_ENFORCE(platform::dynload::cublasDaxpy(
+    reinterpret_cast<const platform::CUDADeviceContext*>(context)->
+      cublas_handle(), N, &alpha, X, 1, Y, 1));
+}
+
+template <>
+float dotProduct<platform::GPUPlace, float>(const int n,
+                                            const float* x,
+                                            const float* y,
+                                            const platform::DeviceContext* context) {
+  CUBLAS_ENFORCE(platform::dynload::cublasSdot(
+    reinterpret_cast<const platform::CUDADeviceContext*>(context)->
+      cublas_handle(), n, a, 1, b, 1, &result));
+}
+
+template <>
+double dotProduct<platform::GPUPlace, double>(const int n,
+                                              const double* x,
+                                              const double* y,
+                                              const platform::DeviceContext* context) {
+  CUBLAS_ENFORCE(platform::dynload::cublasDdot(
+    reinterpret_cast<const platform::CUDADeviceContext*>(context)->
+      cublas_handle(), n, a, 1, b, 1, &result));
+}
+
+}  // namespace math
+}  // namespace operators
+}  // namespace paddle

paddle/operators/math/math_function.h

+/* 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
+
+#ifdef PADDLE_USE_MKLML
+#include <mkl_cblas.h>
+#include <mkl_lapacke.h>
+#include <mkl_vml_functions.h>
+#endif
+
+#ifdef PADDLE_USE_MKL
+#include <mkl.h>
+#include <mkl_lapacke.h>
+#endif
+
+#ifdef PADDLE_USE_ATLAS
+extern "C" {
+#include <cblas.h>
+#include <clapack.h>
+}
+#endif
+
+#ifdef PADDLE_USE_OPENBLAS
+#include <cblas.h>
+#include <lapacke.h>
+#endif
+
+#include <cmath>
+#include "paddle/platform/device_context.h"
+
+namespace paddle {
+namespace operators {
+namespace math {
+
+template <typename Place, typename T>
+void gemm(const CBLAS_TRANSPOSE transA,
+          const CBLAS_TRANSPOSE transB,
+          const int M,
+          const int N,
+          const int K,
+          const T alpha,
+          const T* A,
+          const int lda,
+          const T* B,
+          const int ldb,
+          const T beta,
+          T* C,
+          const int ldc,
+          const platform::DeviceContext* context);
+
+template <typename Place, typename T>
+void axpy(const int n,
+          const T alpha,
+          const T* x,
+          T* y,
+          const platform::DeviceContext* context);
+
+template <typename Place, typename T>
+T dotProduct(const int n,
+             const T* x,
+             const T* y,
+             const platform::DeviceContext* context);
+
+}  // namespace math
+}  // namespace operators
+}  // namespace paddle

paddle/operators/mean_op.h

@@ -47,7 +47,7 @@ public:
 
     T ig_size = (T)framework::product(IG->dims());
 
-    EigenVector<T>::Flatten(*IG).device(*(context.GetEigenDevice<Place>())) =
+    EigenVector<T>::Flatten(*IG).device(context.GetEigenDevice<Place>()) =
         EigenScalar<T>::From(*OG) / ig_size;
   }
 };

paddle/operators/mul_op.cc

@@ -13,6 +13,7 @@
    limitations under the License. */
 
 #include "paddle/operators/mul_op.h"
+#include "paddle/operators/math/math_function.h"
 
 namespace paddle {
 namespace operators {

paddle/operators/mul_op.cu

@@ -15,4 +15,6 @@
 #define EIGEN_USE_GPU
 #include "paddle/operators/mul_op.h"
 
+
+
 REGISTER_OP_GPU_KERNEL(mul, ops::MulKernel<ops::GPUPlace, float>);
\ No newline at end of file

paddle/operators/mul_op.h

@@ -14,6 +14,7 @@
 
 #pragma once
 
+#include "paddle/operators/math/math_function.h"
 #include "paddle/operators/type_alias.h"
 
 namespace paddle {
@@ -23,22 +24,35 @@ template <typename Place, typename T>
 class MulKernel : public OpKernel {
 public:
   void Compute(const ExecutionContext& context) const override {
-    Eigen::array<Eigen::IndexPair<Eigen::DenseIndex>, 1> dim_pair = {
-        {Eigen::IndexPair<Eigen::DenseIndex>(1, 0)}};
-
     auto input0 = context.Input<Tensor>("X");
     auto input1 = context.Input<Tensor>("Y");
     auto output = context.Output<Tensor>(0);
 
     output->mutable_data<T>(context.GetPlace());
 
-    auto X = EigenMatrix<T>::From(*input0);
-    auto Y = EigenMatrix<T>::From(*input1);
-    auto Z = EigenMatrix<T>::From(*output);
-    auto place = context.GetEigenDevice<Place>();
-
-    Z.device(place) = X.contract(Y, dim_pair);
+    auto out_dim = output->dims();
+    auto in0_dim = input0->dims();
+
+    int M = out_dim[0];
+    int N = out_dim[1];
+    int K = in0_dim[1];
+
+    paddle::operators::math::template gemm<Place, T>(CblasNoTrans,
+                                                     CblasNoTrans,
+                                                     M,
+                                                     N,
+                                                     K,
+                                                     1,
+                                                     input0->data<T>(),
+                                                     K,
+                                                     input1->data<T>(),
+                                                     N,
+                                                     0,
+                                                     output->data<T>(),
+                                                     N,
+                                                     &context.device_context());
   }
 };
+
 }  // namespace operators
 }  // namespace paddle

python/paddle/v2/framework/tests/op_test_util.py

@@ -61,7 +61,7 @@ class OpTestMeta(type):
                 for out_name in func.all_output_args:
                     actual = numpy.array(scope.find_var(out_name).get_tensor())
                     expect = getattr(self, out_name)
-                    # TODO(qijun) The default decimal is 7, but numpy.dot and eigen.mul
+                    # TODO(qijun) The default decimal is 7, but numpy.dot and blas.gemm
                     # has some diff, and could not pass unittest. So I set decimal 3 here.
                     # And I will check this in future.
                     numpy.testing.assert_almost_equal(actual, expect, decimal=3)