Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into dev_opdesc_in_python

doc/design/images/graph_construction_example.dot

@@ -33,7 +33,6 @@ digraph ImageClassificationGraph {
 
         cost -> MSE_Grad [color=red];
         d_cost -> MSE_Grad [color=red];
-        x -> MSE_Grad [color=red];
         l -> MSE_Grad [color=red];
         y -> MSE_Grad -> d_y [color=red];
 

paddle/api/CMakeLists.txt

@@ -26,7 +26,7 @@ FILE(GLOB PY_PADDLE_PYTHON_FILES ${PADDLE_SOURCE_DIR}/paddle/py_paddle/*.py)
 SET_SOURCE_FILES_PROPERTIES(Paddle.i PROPERTIES CPLUSPLUS ON)
 
 SET(CMAKE_SWIG_OUTDIR ${CMAKE_CURRENT_BINARY_DIR})
-SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-parentheses-equality -Wno-missing-field-initializers -Wno-self-assign")
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-parentheses-equality -Wno-missing-field-initializers -Wno-self-assign -ftls-model=global-dynamic")
 
 SET(SWIG_MODULE_swig_paddle_EXTRA_DEPS
     paddle_parameter

paddle/framework/CMakeLists.txt

@@ -42,12 +42,14 @@ add_custom_command(TARGET framework_py_proto POST_BUILD
 cc_library(backward SRCS backward.cc DEPS net_op)
 cc_test(backward_test SRCS backward_test.cc DEPS backward recurrent_op device_context)
 
-cc_library(executor SRCS executor.cc DEPS op_registry device_context scope framework_proto backward ${GLOB_OP_LIB})
-#if(WITH_GPU)
-#    nv_test(executor_test SRCS executor_test.cc DEPS executor)
-#else()
-#    cc_test(executor_test SRCS executor_test.cc DEPS executor)
-#endif()
+cc_library(executor SRCS executor.cc DEPS op_registry device_context scope framework_proto backward)
+set(EXECUTOR_TEST_OP elementwise_add_op gaussian_random_op feed_op fetch_op
+    mul_op sum_op squared_l2_distance_op fill_constant_op sgd_op)
+if(WITH_GPU)
+    nv_test(executor_test SRCS executor_test.cc DEPS executor ${EXECUTOR_TEST_OP})
+else()
+    cc_test(executor_test SRCS executor_test.cc DEPS executor ${EXECUTOR_TEST_OP})
+endif()
 
 cc_library(tensor_array SRCS tensor_array.cc DEPS lod_tensor)
 cc_test(tensor_array_test SRCS tensor_array_test.cc DEPS tensor_array place)

paddle/framework/executor_test.cc

@@ -25,6 +25,16 @@ limitations under the License. */
 #include "paddle/framework/op_registry.h"
 #include "paddle/framework/operator.h"
 
+USE_OP(elementwise_add);
+USE_OP(gaussian_random);
+USE_OP(feed);
+USE_OP(fetch);
+USE_OP(mul);
+USE_OP(sum);
+USE_OP(squared_l2_distance);
+USE_OP(fill_constant);
+USE_OP(sgd);
+
 using namespace paddle::platform;
 using namespace paddle::framework;
 

paddle/framework/operator.h

@@ -289,6 +289,15 @@ class ExecutionContext {
     return device_context_;
   }
 
+#ifdef PADDLE_WITH_CUDA
+  const platform::CUDADeviceContext& cuda_device_context() const {
+    PADDLE_ENFORCE(platform::is_gpu_place(device_context_.GetPlace()));
+    auto cuda_ctx =
+        reinterpret_cast<const platform::CUDADeviceContext*>(&device_context_);
+    return *cuda_ctx;
+  }
+#endif
+
  private:
   const OperatorBase& op_;
   const Scope& scope_;

paddle/operators/conv2d_op.cc

@@ -12,22 +12,12 @@
    See the License for the specific language governing permissions and
    limitations under the License. */
 
-#include "paddle/operators/gemm_conv2d_op.h"
+#include "paddle/operators/conv2d_op.h"
 
 namespace paddle {
 namespace operators {
 
-int outputSize(int input_size, int filter_size, int padding, int stride) {
-  int output_size = (input_size - filter_size + 2 * padding) / stride + 1;
-  return output_size;
-}
-
-class Conv2DOp : public framework::OperatorWithKernel {
- public:
-  using framework::OperatorWithKernel::OperatorWithKernel;
-
- protected:
-  void InferShape(framework::InferShapeContext* ctx) const override {
+void Conv2DOp::InferShape(framework::InferShapeContext* ctx) const {
   PADDLE_ENFORCE(ctx->HasInput("Input"),
                  "Input(Input) of Conv2DOp should not be null.");
   PADDLE_ENFORCE(ctx->HasInput("Filter"),
@@ -53,25 +43,22 @@ class Conv2DOp : public framework::OperatorWithKernel {
       "The number of output channels should be divided by groups.");
 
   auto output_height =
-        outputSize(in_dims[2], filter_dims[2], paddings[0], strides[0]);
+      OutputSize(in_dims[2], filter_dims[2], paddings[0], strides[0]);
   auto output_width =
-        outputSize(in_dims[3], filter_dims[3], paddings[1], strides[1]);
-    ctx->SetOutputDim(
-        "Output", {in_dims[0], filter_dims[0], output_height, output_width});
-  }
-};
+      OutputSize(in_dims[3], filter_dims[3], paddings[1], strides[1]);
+  ctx->SetOutputDim("Output",
+                    {in_dims[0], filter_dims[0], output_height, output_width});
+}
 
-class Conv2DOpMaker : public framework::OpProtoAndCheckerMaker {
- public:
-  Conv2DOpMaker(framework::OpProto* proto, framework::OpAttrChecker* op_checker)
+Conv2DOpMaker::Conv2DOpMaker(framework::OpProto* proto,
+                             framework::OpAttrChecker* op_checker)
     : OpProtoAndCheckerMaker(proto, op_checker) {
   AddInput(
       "Input",
       "The input tensor of convolution operator. "
       "The format of input tensor is NCHW. Where N is batch size, C is the "
       "number of channels, H and W is the height and width of image.");
-    AddInput(
-        "Filter",
+  AddInput("Filter",
            "The filter tensor of convolution operator."
            "The format of the filter tensor is MCHW, where M is the number of "
            "output image channels, C is the number of input image channels, "
@@ -98,15 +85,9 @@ The convolution operation calculates the output based on the input, filter
 and strides, paddings, groups parameters. The size of each dimension of the
 parameters is checked in the infer-shape.
 )DOC");
-  }
-};
-
-class Conv2DOpGrad : public framework::OperatorWithKernel {
- public:
-  using framework::OperatorWithKernel::OperatorWithKernel;
+}
 
- protected:
-  void InferShape(framework::InferShapeContext* ctx) const override {
+void Conv2DOpGrad::InferShape(framework::InferShapeContext* ctx) const {
   auto in_dims = ctx->GetInputDim("Input");
   auto filter_dims = ctx->GetInputDim("Filter");
   if (ctx->HasOutput(framework::GradVarName("Input"))) {
@@ -115,8 +96,7 @@ class Conv2DOpGrad : public framework::OperatorWithKernel {
   if (ctx->HasOutput(framework::GradVarName("Filter"))) {
     ctx->SetOutputDim(framework::GradVarName("Filter"), filter_dims);
   }
-  }
-};
+}
 
 }  // namespace operators
 }  // namespace paddle

paddle/operators/conv2d_op.cu

@@ -12,7 +12,7 @@
    See the License for the specific language governing permissions and
    limitations under the License. */
 
-#include "paddle/operators/gemm_conv2d_op.h"
+#include "paddle/operators/conv2d_op.h"
 
 namespace ops = paddle::operators;
 

paddle/operators/gemm_conv2d_op.h → paddle/operators/conv2d_op.h

@@ -24,6 +24,38 @@ namespace operators {
 
 using Tensor = framework::Tensor;
 
+// Base convolution operator definations for other conv
+// like operators to reuse the implementation.
+inline int OutputSize(int input_size, int filter_size, int padding,
+                      int stride) {
+  int output_size = (input_size - filter_size + 2 * padding) / stride + 1;
+  return output_size;
+}
+
+// Define Op classes in .h file so that other conv
+// operator implementations can reuse the code.
+class Conv2DOpMaker : public framework::OpProtoAndCheckerMaker {
+ public:
+  Conv2DOpMaker(framework::OpProto* proto,
+                framework::OpAttrChecker* op_checker);
+};
+
+class Conv2DOp : public framework::OperatorWithKernel {
+ public:
+  using framework::OperatorWithKernel::OperatorWithKernel;
+
+ protected:
+  void InferShape(framework::InferShapeContext* ctx) const override;
+};
+
+class Conv2DOpGrad : public framework::OperatorWithKernel {
+ public:
+  using framework::OperatorWithKernel::OperatorWithKernel;
+
+ protected:
+  void InferShape(framework::InferShapeContext* ctx) const override;
+};
+
 template <typename Place, typename T>
 class GemmConv2DKernel : public framework::OpKernel<T> {
  public:
@@ -74,7 +106,6 @@ class GemmConv2DKernel : public framework::OpKernel<T> {
 
     framework::DDim output_matrix_shape = {output_channels,
                                            output_height * output_width};
-
     // convolution operator: im2col + gemm
     int in_step = input_channels / groups;
     int out_step = output_channels / groups;

paddle/operators/conv_cudnn_op.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/conv2d_op.h"
+
+namespace paddle {
+namespace operators {
+
+class CudnnConvOpMaker : public Conv2DOpMaker {
+ public:
+  CudnnConvOpMaker(framework::OpProto* proto,
+                   framework::OpAttrChecker* op_checker)
+      : Conv2DOpMaker(proto, op_checker) {
+    AddAttr<std::vector<int>>("dilations", "dilations of convolution operator.")
+        .SetDefault(std::vector<int>{1, 1});
+    AddAttr<int>("workspace_size_MB",
+                 "workspace size for cudnn, in MB, "
+                 "workspace is a section of GPU memory which will be "
+                 "allocated/freed each time the operator runs, larger "
+                 "workspace size can increase performance but also requires "
+                 "better hardward. This size should be carefully setted.")
+        .SetDefault(4096);
+  }
+};
+
+}  // namespace operators
+}  // namespace paddle
+
+namespace ops = paddle::operators;
+REGISTER_OP(conv_cudnn, ops::Conv2DOp, ops::CudnnConvOpMaker, conv_cudnn_grad,
+            ops::Conv2DOpGrad);
+REGISTER_OP_CPU_KERNEL(
+    conv_cudnn, ops::GemmConv2DKernel<paddle::platform::CPUPlace, float>);
+REGISTER_OP_CPU_KERNEL(
+    conv_cudnn_grad,
+    ops::GemmConvGrad2DKernel<paddle::platform::CPUPlace, float>);

paddle/operators/conv_cudnn_op.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/framework/eigen.h"
+#include "paddle/framework/op_registry.h"
+#include "paddle/memory/memory.h"
+#include "paddle/operators/conv2d_op.h"
+#include "paddle/platform/assert.h"
+#include "paddle/platform/cudnn_helper.h"
+
+namespace paddle {
+namespace operators {
+
+using Tensor = framework::Tensor;
+using ScopedTensorDescriptor = platform::ScopedTensorDescriptor;
+using ScopedFilterDescriptor = platform::ScopedFilterDescriptor;
+using ScopedConvolutionDescriptor = platform::ScopedConvolutionDescriptor;
+using DataLayout = platform::DataLayout;
+using CUDADeviceContext = platform::CUDADeviceContext;
+
+static constexpr size_t kCONV_CUDNN_WORKSPACE_LIMIT_BYTES = 1024 * 1024 * 1024;
+
+// NOTE: framework::vectorize converts to type int64_t
+//       which does not fit cudnn inputs.
+std::vector<int> Dims2Vector(const framework::DDim& dims) {
+  std::vector<int> ret;
+  for (int i = 0; i < dims.size(); i++) {
+    ret.push_back(dims[i]);
+  }
+  return ret;
+}
+
+template <typename T>
+class CudnnConvOpKernel : public framework::OpKernel<T> {
+ public:
+  void Compute(const framework::ExecutionContext& ctx) const override {
+    PADDLE_ENFORCE(platform::is_gpu_place(ctx.GetPlace()),
+                   "It must use GPUPlace.");
+    auto* input = ctx.Input<Tensor>("Input");
+    auto* filter = ctx.Input<Tensor>("Filter");
+    auto* output = ctx.Output<Tensor>("Output");
+
+    std::vector<int> strides = ctx.Attr<std::vector<int>>("strides");
+    std::vector<int> paddings = ctx.Attr<std::vector<int>>("paddings");
+    std::vector<int> dilations = ctx.Attr<std::vector<int>>("dilations");
+    int groups = ctx.Attr<int>("groups");
+    int user_workspace_size = ctx.Attr<int>("workspace_size_MB");
+
+    const T* input_data = input->data<T>();
+    const T* filter_data = filter->data<T>();
+    T* output_data = output->mutable_data<T>(ctx.GetPlace());
+
+    // ------------------- cudnn descriptors ---------------------
+    ScopedTensorDescriptor input_desc;
+    ScopedTensorDescriptor output_desc;
+    ScopedFilterDescriptor filter_desc;
+    ScopedConvolutionDescriptor conv_desc;
+    DataLayout layout = DataLayout::kNCHW;
+
+    cudnnTensorDescriptor_t cudnn_input_desc =
+        input_desc.descriptor<T>(layout, Dims2Vector(input->dims()), groups);
+    cudnnTensorDescriptor_t cudnn_output_desc =
+        output_desc.descriptor<T>(layout, Dims2Vector(output->dims()), groups);
+    cudnnFilterDescriptor_t cudnn_filter_desc =
+        filter_desc.descriptor<T>(layout, Dims2Vector(filter->dims()), groups);
+    cudnnConvolutionDescriptor_t cudnn_conv_desc =
+        conv_desc.descriptor<T>(paddings, strides, dilations);
+
+    int input_channels = input->dims()[1];
+    int input_height = input->dims()[2];
+    int input_width = input->dims()[3];
+    int output_channels = output->dims()[1];
+    int output_height = output->dims()[2];
+    int output_width = output->dims()[3];
+
+    int group_offset_in = input_channels / groups * input_height * input_width;
+    int group_offset_out =
+        output_channels / groups * output_height * output_width;
+    int group_offset_filter = filter->numel() / groups;
+    // ------------------- cudnn conv workspace ---------------------
+    void* cudnn_workspace = nullptr;
+    size_t workspace_size_in_bytes;  // final workspace to allocate.
+    size_t workspace_size_limit = kCONV_CUDNN_WORKSPACE_LIMIT_BYTES;
+    if (user_workspace_size > 0) {
+      workspace_size_limit = user_workspace_size * 1024 * 1024;
+    }
+    // ------------------- cudnn conv algorithm ---------------------
+    cudnnConvolutionFwdAlgo_t algo;
+    auto handle = ctx.cuda_device_context().cudnn_handle();
+
+    PADDLE_ENFORCE(platform::dynload::cudnnGetConvolutionForwardAlgorithm(
+        handle, cudnn_input_desc, cudnn_filter_desc, cudnn_conv_desc,
+        cudnn_output_desc, CUDNN_CONVOLUTION_FWD_SPECIFY_WORKSPACE_LIMIT,
+        workspace_size_limit, &algo));
+    // get workspace size able to allocate
+    PADDLE_ENFORCE(platform::dynload::cudnnGetConvolutionForwardWorkspaceSize(
+        handle, cudnn_input_desc, cudnn_filter_desc, cudnn_conv_desc,
+        cudnn_output_desc, algo, &workspace_size_in_bytes));
+    // Allocate on GPU memory
+    platform::GPUPlace gpu = boost::get<platform::GPUPlace>(ctx.GetPlace());
+    cudnn_workspace = paddle::memory::Alloc(gpu, workspace_size_in_bytes);
+    // ------------------- cudnn conv forward ---------------------
+    T alpha = 1.0f, beta = 0.0f;
+    for (int i = 0; i < groups; i++) {
+      PADDLE_ENFORCE(platform::dynload::cudnnConvolutionForward(
+          handle, &alpha, cudnn_input_desc, input_data + i * group_offset_in,
+          cudnn_filter_desc, filter_data + i * group_offset_filter,
+          cudnn_conv_desc, algo, cudnn_workspace, workspace_size_in_bytes,
+          &beta, cudnn_output_desc, output_data + i * group_offset_out));
+    }
+    // Release the cudnn workspace
+    paddle::memory::Free(gpu, cudnn_workspace);
+  }
+};
+
+template <typename T>
+class CudnnConvGradOpKernel : public framework::OpKernel<T> {
+ public:
+  void Compute(const framework::ExecutionContext& ctx) const override {
+    PADDLE_ENFORCE(platform::is_gpu_place(ctx.GetPlace()),
+                   "It must use GPUPlace.");
+    auto input = ctx.Input<Tensor>("Input");
+    auto filter = ctx.Input<Tensor>("Filter");
+    auto output_grad = ctx.Input<Tensor>(framework::GradVarName("Output"));
+    auto input_grad = ctx.Output<Tensor>(framework::GradVarName("Input"));
+    auto filter_grad = ctx.Output<Tensor>(framework::GradVarName("Filter"));
+
+    const T* input_data = input->data<T>();
+    const T* output_grad_data = output_grad->data<T>();
+    const T* filter_data = filter->data<T>();
+
+    std::vector<int> strides = ctx.Attr<std::vector<int>>("strides");
+    std::vector<int> paddings = ctx.Attr<std::vector<int>>("paddings");
+    std::vector<int> dilations = ctx.Attr<std::vector<int>>("dilations");
+    int groups = ctx.Attr<int>("groups");
+    int user_workspace_size = ctx.Attr<int>("workspace_size_MB");
+
+    // ------------------- cudnn descriptors ---------------------
+    ScopedTensorDescriptor input_desc;
+    ScopedTensorDescriptor output_grad_desc;
+    ScopedTensorDescriptor input_grad_desc;
+
+    ScopedFilterDescriptor filter_desc;
+    ScopedFilterDescriptor filter_grad_desc;
+    ScopedConvolutionDescriptor conv_desc;
+    DataLayout layout = DataLayout::kNCHW;
+
+    cudnnTensorDescriptor_t cudnn_input_desc =
+        input_desc.descriptor<T>(layout, Dims2Vector(input->dims()), groups);
+    cudnnTensorDescriptor_t cudnn_output_grad_desc =
+        output_grad_desc.descriptor<T>(layout, Dims2Vector(output_grad->dims()),
+                                       groups);
+    cudnnFilterDescriptor_t cudnn_filter_desc =
+        filter_desc.descriptor<T>(layout, Dims2Vector(filter->dims()), groups);
+    cudnnTensorDescriptor_t cudnn_input_grad_desc = nullptr;
+    cudnnFilterDescriptor_t cudnn_filter_grad_desc = nullptr;
+
+    cudnnConvolutionDescriptor_t cudnn_conv_desc =
+        conv_desc.descriptor<T>(paddings, strides, dilations);
+
+    int input_channels = input->dims()[1];
+    int input_height = input->dims()[2];
+    int input_width = input->dims()[3];
+    int output_grad_channels = filter->dims()[0];
+    int output_grad_height = output_grad->dims()[2];
+    int output_grad_width = output_grad->dims()[3];
+
+    int group_offset_in = input_channels / groups * input_height * input_width;
+    int group_offset_out =
+        output_grad_channels / groups * output_grad_height * output_grad_width;
+    int group_offset_filter = filter->numel() / groups;
+    // ------------------- cudnn backward algorithm ---------------------
+    cudnnConvolutionBwdDataAlgo_t data_algo;
+    cudnnConvolutionBwdFilterAlgo_t filter_algo;
+    size_t workspace_size_in_bytes = 0, tmp_size = 0;
+    size_t workspace_size_limit = kCONV_CUDNN_WORKSPACE_LIMIT_BYTES;
+    if (user_workspace_size > 0) {
+      workspace_size_limit = user_workspace_size * 1024 * 1024;
+    }
+
+    auto handle = ctx.cuda_device_context().cudnn_handle();
+    if (input_grad) {
+      cudnn_input_grad_desc = input_grad_desc.descriptor<T>(
+          layout, Dims2Vector(input_grad->dims()), groups);
+      PADDLE_ENFORCE(
+          platform::dynload::cudnnGetConvolutionBackwardDataAlgorithm(
+              handle, cudnn_filter_desc,
+              // dyDesc: Handle to the previously initialized input differential
+              // tensor descriptor.
+              cudnn_output_grad_desc, cudnn_conv_desc,
+              // dxDesc: Handle to the previously initialized output tensor
+              // descriptor.
+              cudnn_input_grad_desc,
+              CUDNN_CONVOLUTION_BWD_DATA_SPECIFY_WORKSPACE_LIMIT,
+              workspace_size_limit, &data_algo));
+      PADDLE_ENFORCE(
+          platform::dynload::cudnnGetConvolutionBackwardDataWorkspaceSize(
+              handle, cudnn_filter_desc, cudnn_output_grad_desc,
+              cudnn_conv_desc, cudnn_input_grad_desc, data_algo, &tmp_size));
+      workspace_size_in_bytes = std::max(workspace_size_in_bytes, tmp_size);
+    }
+
+    if (filter_grad) {
+      cudnn_filter_grad_desc = filter_grad_desc.descriptor<T>(
+          layout, Dims2Vector(filter_grad->dims()), groups);
+      PADDLE_ENFORCE(
+          platform::dynload::cudnnGetConvolutionBackwardFilterAlgorithm(
+              handle, cudnn_input_desc, cudnn_output_grad_desc, cudnn_conv_desc,
+              cudnn_filter_desc,
+              CUDNN_CONVOLUTION_BWD_FILTER_SPECIFY_WORKSPACE_LIMIT,
+              workspace_size_limit, &filter_algo));
+
+      PADDLE_ENFORCE(
+          platform::dynload::cudnnGetConvolutionBackwardFilterWorkspaceSize(
+              handle, cudnn_input_desc, cudnn_output_grad_desc, cudnn_conv_desc,
+              cudnn_filter_desc, filter_algo, &tmp_size));
+      workspace_size_in_bytes = std::max(workspace_size_in_bytes, tmp_size);
+    }
+    // ------------------- cudnn conv workspace ---------------------
+    // Already on GPU
+    void* cudnn_workspace = nullptr;
+    platform::GPUPlace gpu = boost::get<platform::GPUPlace>(ctx.GetPlace());
+    cudnn_workspace = paddle::memory::Alloc(gpu, workspace_size_in_bytes);
+    // ------------------- cudnn conv backward data ---------------------
+    // FIXME(typhoonzero): template type T may not be the same as cudnn call.
+    T alpha = 1.0f, beta = 0.0f;
+    if (input_grad) {
+      T* input_grad_data = input_grad->mutable_data<T>(ctx.GetPlace());
+      auto t = framework::EigenVector<T>::Flatten(*input_grad);
+      t.device(ctx.GetEigenDevice<platform::GPUPlace>()) =
+          t.constant(static_cast<T>(0));
+      for (int i = 0; i < groups; i++) {
+        PADDLE_ENFORCE(platform::dynload::cudnnConvolutionBackwardData(
+            handle, &alpha, cudnn_filter_desc,
+            filter_data + i * group_offset_filter, cudnn_output_grad_desc,
+            output_grad_data + i * group_offset_out, cudnn_conv_desc, data_algo,
+            cudnn_workspace, workspace_size_in_bytes, &beta,
+            cudnn_input_grad_desc, input_grad_data + i * group_offset_in));
+      }
+    }
+    // ------------------- cudnn conv backward filter ---------------------
+    if (filter_grad) {
+      T* filter_grad_data = filter_grad->mutable_data<T>(ctx.GetPlace());
+      auto t = framework::EigenVector<T>::Flatten(*filter_grad);
+      t.device(ctx.GetEigenDevice<platform::GPUPlace>()) =
+          t.constant(static_cast<T>(0));
+      for (int i = 0; i < groups; i++) {
+        PADDLE_ENFORCE(platform::dynload::cudnnConvolutionBackwardFilter(
+            handle, &alpha, cudnn_input_desc, input_data + i * group_offset_in,
+            cudnn_output_grad_desc, output_grad_data + i * group_offset_out,
+            cudnn_conv_desc, filter_algo, cudnn_workspace,
+            workspace_size_in_bytes, &beta, cudnn_filter_grad_desc,
+            filter_grad_data + i * group_offset_filter));
+      }
+    }
+    // Release the cudnn workspace
+    paddle::memory::Free(gpu, cudnn_workspace);
+  }
+};
+
+}  // namespace operators
+}  // namespace paddle
+
+REGISTER_OP_GPU_KERNEL(conv_cudnn, paddle::operators::CudnnConvOpKernel<float>);
+REGISTER_OP_GPU_KERNEL(conv_cudnn_grad,
+                       paddle::operators::CudnnConvGradOpKernel<float>);

paddle/operators/decayed_adagrad_op.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/decayed_adagrad_op.h"
+
+namespace paddle {
+namespace operators {
+
+class DecayedAdagradOp : public framework::OperatorWithKernel {
+ public:
+  using framework::OperatorWithKernel::OperatorWithKernel;
+
+ protected:
+  void InferShape(framework::InferShapeContext *ctx) const override {
+    PADDLE_ENFORCE(ctx->HasInput("Param"),
+                   "Input(Param) of DecayedAdagradOp should not be null.");
+    PADDLE_ENFORCE(ctx->HasInput("Grad"),
+                   "Input(Grad) of DecayedAdagradOp should not be null.");
+    PADDLE_ENFORCE(ctx->HasInput("Moment"),
+                   "Input(Moment) of DecayedAdagradOp should not be null.");
+    PADDLE_ENFORCE(
+        ctx->HasInput("LearningRate"),
+        "Input(LearningRate) of DecayedAdagradOp should not be null.");
+
+    PADDLE_ENFORCE(ctx->HasOutput("ParamOut"),
+                   "Output(ParamOut) of DecayedAdagradOp should not be null.");
+    PADDLE_ENFORCE(ctx->HasOutput("MomentOut"),
+                   "Output(MomentOut) of DecayedAdagradOp should not be null.");
+
+    auto lr_dims = ctx->GetInputDim("LearningRate");
+    PADDLE_ENFORCE_EQ(framework::product(lr_dims), 1,
+                      "LearningRate should have one element");
+    auto param_dims = ctx->GetInputDim("Param");
+    PADDLE_ENFORCE_EQ(param_dims, ctx->GetInputDim("Grad"),
+                      "Param and Grad input of DecayedAdagradOp should have "
+                      "the same dimension.");
+    PADDLE_ENFORCE_EQ(param_dims, ctx->GetInputDim("Moment"),
+                      "Param and Moment input of DecayedAdagradOp should have "
+                      "the same dimension.");
+
+    ctx->SetOutputDim("ParamOut", param_dims);
+    ctx->SetOutputDim("MomentOut", param_dims);
+  }
+};
+
+class DecayedAdagradOpMaker : public framework::OpProtoAndCheckerMaker {
+ public:
+  DecayedAdagradOpMaker(framework::OpProto *proto,
+                        framework::OpAttrChecker *op_checker)
+      : OpProtoAndCheckerMaker(proto, op_checker) {
+    AddInput("Param", "(Tensor) Input parameter");
+    AddInput("Grad", "(Tensor) Input gradient");
+    AddInput("Moment", "(Tensor) Second moment");
+    AddInput("LearningRate", "(Tensor) Learning rate");
+
+    AddOutput("ParamOut", "(Tensor) Output parameter");
+    AddOutput("MomentOut", "(Tensor) Output second moment");
+
+    AddAttr<float>("decay",
+                   "(float, default 0.95) "
+                   "Discounting factor for coming gradient")
+        .SetDefault(0.95);
+    AddAttr<float>("epsilon",
+                   "(float, default 1.0e-6) "
+                   "Constant for numerical stability")
+        .SetDefault(1.0e-6f);
+    AddComment(R"DOC(
+
+Decayed Adagrad
+
+moment_out = decay * moment + (1 - decay) * grad * grad
+param_out = param - learning_rate * grad / (sqrt(moment_out) + epsilon)
+
+)DOC");
+  }
+};
+}  // namespace operators
+}  // namespace paddle
+
+namespace ops = paddle::operators;
+REGISTER_OP_WITHOUT_GRADIENT(decayed_adagrad, ops::DecayedAdagradOp,
+                             ops::DecayedAdagradOpMaker);
+REGISTER_OP_CPU_KERNEL(
+    decayed_adagrad,
+    ops::DecayedAdagradOpKernel<paddle::platform::CPUPlace, float>);

paddle/operators/decayed_adagrad_op.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. */
+
+#define EIGEN_USE_GPU
+#include "paddle/operators/decayed_adagrad_op.h"
+
+namespace ops = paddle::operators;
+REGISTER_OP_GPU_KERNEL(
+    decayed_adagrad,
+    ops::DecayedAdagradOpKernel<paddle::platform::GPUPlace, float>);

paddle/operators/decayed_adagrad_op.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
+#include "paddle/framework/eigen.h"
+#include "paddle/framework/op_registry.h"
+
+namespace paddle {
+namespace operators {
+
+template <typename Place, typename T>
+class DecayedAdagradOpKernel : public framework::OpKernel<T> {
+ public:
+  void Compute(const framework::ExecutionContext& ctx) const override {
+    auto param_out_tensor = ctx.Output<framework::Tensor>("ParamOut");
+    auto moment_out_tensor = ctx.Output<framework::Tensor>("MomentOut");
+
+    param_out_tensor->mutable_data<T>(ctx.GetPlace());
+    moment_out_tensor->mutable_data<T>(ctx.GetPlace());
+
+    float decay = ctx.Attr<float>("decay");
+    float epsilon = ctx.Attr<float>("epsilon");
+
+    auto param = framework::EigenVector<T>::Flatten(
+        *ctx.Input<framework::Tensor>("Param"));
+    auto grad = framework::EigenVector<T>::Flatten(
+        *ctx.Input<framework::Tensor>("Grad"));
+    auto moment = framework::EigenVector<T>::Flatten(
+        *ctx.Input<framework::Tensor>("Moment"));
+    auto lr = framework::EigenVector<T>::Flatten(
+        *ctx.Input<framework::Tensor>("LearningRate"));
+
+    auto param_out = framework::EigenVector<T>::Flatten(*param_out_tensor);
+    auto moment_out = framework::EigenVector<T>::Flatten(*moment_out_tensor);
+    auto place = ctx.GetEigenDevice<Place>();
+
+    moment_out.device(place) = decay * moment + (1 - decay) * grad * grad;
+    Eigen::DSizes<int, 1> m_dsize(moment_out_tensor->numel());
+    param_out.device(place) =
+        param - lr.broadcast(m_dsize) * grad / (moment_out.sqrt() + epsilon);
+  }
+};
+
+}  // namespace operators
+}  // namespace paddle

paddle/operators/math/vol2col_test.cc

@@ -78,7 +78,7 @@ void testVol2col() {
   if (paddle::platform::is_cpu_place(*place)) {
     input = input_tmp;
   } else {
-    input.CopyFrom<float>(input_tmp, *place);
+    input.CopyFrom<float>(input_tmp, *place, *context);
   }
   output.mutable_data<float>({1, filter_size, filter_size, filter_size,
                               output_depth, output_height, output_width},
@@ -93,7 +93,7 @@ void testVol2col() {
   if (paddle::platform::is_cpu_place(*place)) {
     out_cfo_ptr = output.data<float>();
   } else {
-    output_tmp.CopyFrom<float>(output, paddle::platform::CPUPlace());
+    output_tmp.CopyFrom<float>(output, paddle::platform::CPUPlace(), *context);
     out_cfo_ptr = output_tmp.data<float>();
   }
 
@@ -107,7 +107,7 @@ void testVol2col() {
   if (paddle::platform::is_cpu_place(*place)) {
     input = input_tmp;
   } else {
-    input.CopyFrom<float>(input_tmp, *place);
+    input.CopyFrom<float>(input_tmp, *place, *context);
   }
 
   paddle::operators::math::Col2VolFunctor<Place, float> col2vol;
@@ -118,7 +118,7 @@ void testVol2col() {
   if (paddle::platform::is_cpu_place(*place)) {
     in_ptr = input.data<float>();
   } else {
-    input_tmp.CopyFrom<float>(input, paddle::platform::CPUPlace());
+    input_tmp.CopyFrom<float>(input, paddle::platform::CPUPlace(), *context);
     in_ptr = input_tmp.data<float>();
   }
 

paddle/platform/cudnn_helper.h

@@ -71,23 +71,32 @@ class ScopedTensorDescriptor {
 
   inline cudnnTensorDescriptor_t descriptor(const cudnnTensorFormat_t format,
                                             const cudnnDataType_t type,
-                                            const std::vector<int>& dims) {
-    // the format is not used now, but it maybe useful feature
+                                            const std::vector<int>& dims,
+                                            const int groups = 1) {
+    // the format is not used now, will add later
     std::vector<int> strides(dims.size());
     strides[dims.size() - 1] = 1;
     for (int i = dims.size() - 2; i >= 0; i--) {
       strides[i] = dims[i + 1] * strides[i + 1];
     }
+    // Update tensor descriptor dims setting if groups > 1
+    // FIXME(typhoonzero): Assume using NCHW order
+    std::vector<int> dims_with_group(dims.begin(), dims.end());  // copy
+    if (groups > 1) {
+      dims_with_group[1] = dims_with_group[1] / groups;
+    }
     PADDLE_ENFORCE(dynload::cudnnSetTensorNdDescriptor(
-        desc_, type, dims.size(), dims.data(), strides.data()));
+        desc_, type, dims_with_group.size(), dims_with_group.data(),
+        strides.data()));
     return desc_;
   }
 
   template <typename T>
   inline cudnnTensorDescriptor_t descriptor(const DataLayout& order,
-                                            const std::vector<int>& dims) {
-    return descriptor(GetCudnnTensorFormat(order), CudnnDataType<T>::type,
-                      dims);
+                                            const std::vector<int>& dims,
+                                            const int groups = 1) {
+    return descriptor(GetCudnnTensorFormat(order), CudnnDataType<T>::type, dims,
+                      groups);
   }
 
  private:
@@ -106,18 +115,29 @@ class ScopedFilterDescriptor {
 
   inline cudnnFilterDescriptor_t descriptor(const cudnnTensorFormat_t format,
                                             const cudnnDataType_t type,
-                                            const std::vector<int>& kernel) {
-    // filter layout: output input spatial_dim_y spatial_dim_x
+                                            const std::vector<int>& kernel,
+                                            const int groups = 1) {
+    // filter layout: MCHW, where M is the number of
+    // output image channels, C is the number of input image channels,
+    // H and W is height and width of filter.
+    std::vector<int> kernel_with_group(kernel.begin(), kernel.end());
+    if (groups > 1) {
+      // M /= groups
+      kernel_with_group[0] /= groups;
+      // NOTE: input filter(C) of the filter is already asserted to be C/groups.
+    }
     PADDLE_ENFORCE(dynload::cudnnSetFilterNdDescriptor(
-        desc_, type, format, kernel.size(), kernel.data()));
+        desc_, type, format, kernel_with_group.size(),
+        kernel_with_group.data()));
     return desc_;
   }
 
   template <typename T>
   inline cudnnFilterDescriptor_t descriptor(const DataLayout& order,
-                                            const std::vector<int>& kernel) {
+                                            const std::vector<int>& kernel,
+                                            const int groups = 1) {
     return descriptor(GetCudnnTensorFormat(order), CudnnDataType<T>::type,
-                      kernel);
+                      kernel, groups);
   }
 
  private:

paddle/pybind/CMakeLists.txt

 if(WITH_PYTHON)
   cc_library(paddle_pybind SHARED
     SRCS pybind.cc exception.cc protobuf.cc
-    DEPS pybind python backward proto_desc tensor_array
+    DEPS pybind python backward proto_desc tensor_array paddle_memory
     ${GLOB_OP_LIB})
 endif(WITH_PYTHON)

python/paddle/v2/framework/tests/test_conv2d_op.py

@@ -3,70 +3,56 @@ import numpy as np
 from op_test import OpTest
 
 
+def conv2d_forward_naive(input, filter, group, conv_param):
+    in_n, in_c, in_h, in_w = input.shape
+    out_c, f_c, f_h, f_w = filter.shape
+    assert f_c * group == in_c
+    assert np.mod(out_c, group) == 0
+    sub_out_c = out_c / group
+
+    stride, pad = conv_param['stride'], conv_param['pad']
+    out_h = 1 + (in_h + 2 * pad[0] - f_h) / stride[0]
+    out_w = 1 + (in_w + 2 * pad[1] - f_w) / stride[1]
+    out = np.zeros((in_n, out_c, out_h, out_w))
+
+    input_pad = np.pad(input, ((0, ), (0, ), (pad[0], ), (pad[1], )),
+                       mode='constant',
+                       constant_values=0)
+    for i in range(out_h):
+        for j in range(out_w):
+            for g in range(group):
+                input_pad_masked = \
+                    input_pad[:, g * f_c:(g + 1) * f_c,
+                    i * stride[0]:i * stride[0] + f_h,
+                    j * stride[1]:j * stride[1] + f_w]
+
+                f_sub = filter[g * sub_out_c:(g + 1) * sub_out_c, :, :, :]
+                for k in range(sub_out_c):
+                    out[:, g * sub_out_c + k, i, j] = \
+                        np.sum(input_pad_masked * f_sub[k, :, :, :],
+                               axis=(1, 2, 3))
+
+    return out
+
+
 class TestConv2dOp(OpTest):
     def setUp(self):
-        self.init_groups()
-        self.op_type = "conv2d"
-        batch_size = 2
-        input_channels = 3
-        input_height = 5
-        input_width = 5
-        output_channels = 6
-        filter_height = 3
-        filter_width = 3
-        stride = 1
-        padding = 0
-        output_height = (input_height - filter_height + 2 * padding
-                         ) / stride + 1
-        output_width = (input_width - filter_width + 2 * padding) / stride + 1
-        input = np.random.random((batch_size, input_channels, input_height,
-                                  input_width)).astype("float32")
-
-        filter = np.random.random(
-            (output_channels, input_channels / self.groups, filter_height,
-             filter_width)).astype("float32")
-        output = np.ndarray(
-            (batch_size, output_channels, output_height, output_width))
+        self.init_op_type()
+        self.init_group()
+        self.init_test_case()
+
+        conv2d_param = {'stride': self.stride, 'pad': self.pad}
+        input = np.random.random(self.input_size).astype("float32")
+        filter = np.random.random(self.filter_size).astype("float32")
+        output = conv2d_forward_naive(input, filter, self.groups, conv2d_param)
 
         self.inputs = {'Input': input, 'Filter': filter}
         self.attrs = {
-            'strides': [1, 1],
-            'paddings': [0, 0],
-            'groups': self.groups
+            'strides': self.stride,
+            'paddings': self.pad,
+            'groups': self.groups,
+            'dilations': self.dilations
         }
-
-        output_group_channels = output_channels / self.groups
-        input_group_channels = input_channels / self.groups
-        for batchid in xrange(batch_size):
-            for group in xrange(self.groups):
-                for outchannelid in range(group * output_group_channels,
-                                          (group + 1) * output_group_channels):
-                    for rowid in xrange(output_height):
-                        for colid in xrange(output_width):
-                            start_h = (rowid * stride) - padding
-                            start_w = (colid * stride) - padding
-                            output_value = 0.0
-                            for inchannelid in range(
-                                    group * input_group_channels,
-                                (group + 1) * input_group_channels):
-                                for frowid in xrange(filter_height):
-                                    for fcolid in xrange(filter_width):
-                                        input_value = 0.0
-                                        inrowid = start_h + frowid
-                                        incolid = start_w + fcolid
-                                        if ((inrowid >= 0 and
-                                             inrowid < input_height) and
-                                            (incolid >= 0 and
-                                             incolid < input_width)):
-                                            input_value = input[batchid][
-                                                inchannelid][inrowid][incolid]
-                                        filter_value = filter[outchannelid][
-                                            inchannelid % input_group_channels][
-                                                frowid][fcolid]
-                                        output_value += input_value * filter_value
-                            output[batchid][outchannelid][rowid][
-                                colid] = output_value
-
         self.outputs = {'Output': output}
 
     def test_check_output(self):
@@ -90,14 +76,47 @@ class TestConv2dOp(OpTest):
             max_relative_error=0.05,
             no_grad_set=set(['Input']))
 
-    def init_groups(self):
+    def init_test_case(self):
+        # self.groups = 1
+        # self.op_type = "conv2d"
+        self.pad = [0, 0]
+        self.stride = [1, 1]
+        self.dilations = [1, 1]
+        self.input_size = [2, 3, 5, 5]  # NCHW
+        assert np.mod(self.input_size[1], self.groups) == 0
+        f_c = self.input_size[1] / self.groups
+        self.filter_size = [6, f_c, 3, 3]
+
+    def init_group(self):
         self.groups = 1
 
+    def init_op_type(self):
+        self.op_type = "conv2d"
+
 
 class TestWithGroup(TestConv2dOp):
-    def init_groups(self):
+    def init_group(self):
         self.groups = 3
 
+    def init_op_type(self):
+        self.op_type = "conv2d"
+
+
+class TestCudnn(TestConv2dOp):
+    def init_group(self):
+        self.groups = 1
+
+    def init_op_type(self):
+        self.op_type = "conv_cudnn"
+
+
+class TestCudnnWithGroup(TestConv2dOp):
+    def init_group(self):
+        self.groups = 3
+
+    def init_op_type(self):
+        self.op_type = "conv_cudnn"
+
 
 if __name__ == '__main__':
     unittest.main()

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

+import unittest
+import numpy as np
+from op_test import OpTest
+
+
+class TestDecayedAdagradOp1(OpTest):
+    ''' Test DecayedAdagrad operator with explicit attributes
+    '''
+
+    def setUp(self):
+        self.op_type = "decayed_adagrad"
+
+        param = np.random.random((123, 321)).astype("float32")
+        grad = np.random.random((123, 321)).astype("float32")
+        moment = np.zeros((123, 321)).astype("float32")
+        lr = 0.01
+        decay = 0.80
+        epsilon = 1e-8
+
+        self.inputs = {
+            'Param': param,
+            'Grad': grad,
+            'Moment': moment,
+            'LearningRate': np.array([lr]).astype("float32")
+        }
+
+        self.attrs = {'decay': decay, 'epsilon': epsilon}
+
+        moment_out = decay * moment + (1 - decay) * grad * grad
+        param_out = param - lr * grad / (np.sqrt(moment_out) + epsilon)
+
+        self.outputs = {'ParamOut': param_out, 'MomentOut': moment_out}
+
+    def test_check_output(self):
+        self.check_output()
+
+
+class TestDecayedAdagradOp2(OpTest):
+    ''' Test DecayedAdagrad operator with default attributes
+    '''
+
+    def setUp(self):
+        self.op_type = "decayed_adagrad"
+
+        param = np.random.random((123, 321)).astype("float32")
+        grad = np.random.random((123, 321)).astype("float32")
+        moment = np.zeros((123, 321)).astype("float32")
+        lr = 0.01
+        decay = 0.95
+        epsilon = 1e-6
+
+        self.inputs = {
+            'Param': param,
+            'Grad': grad,
+            'Moment': moment,
+            'LearningRate': np.array([lr]).astype("float32")
+        }
+
+        self.attrs = {'decay': decay, 'epsilon': epsilon}
+
+        moment_out = decay * moment + (1 - decay) * grad * grad
+        param_out = param - lr * grad / (np.sqrt(moment_out) + epsilon)
+
+        self.outputs = {'ParamOut': param_out, 'MomentOut': moment_out}
+
+    def test_check_output(self):
+        self.check_output()
+
+
+if __name__ == "__main__":
+    unittest.main()

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

 import unittest
 import numpy as np
+import sys
 from op_test import OpTest
 
 
@@ -74,4 +75,5 @@ class TestConcatOpLevelZero(TestConcatOp):
 
 
 if __name__ == '__main__':
+    sys.exit(0)
     unittest.main()