Add method converting Tensor to Eigen TensorMap

paddle/framework/CMakeLists.txt

@@ -1,6 +1,7 @@
+# ddim lib
 cc_library(enforce SRCS enforce.cc DEPS glog)
 cc_test(enforce_test SRCS enforce_test.cc DEPS enforce)
-cc_library(ddim SRCS ddim.cc)
+cc_library(ddim SRCS ddim.cc DEPS eigen3)
 cc_test(ddim_test SRCS ddim_test.cc DEPS ddim)
 nv_test(dim_test SRCS dim_test.cu DEPS ddim)
 cc_library(tensor SRCS tensor.cc DEPS ddim place enforce paddle_memory)

paddle/framework/ddim.h

@@ -1,11 +1,26 @@
+/* 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 <boost/variant.hpp>
 #include <initializer_list>
 #include <stdexcept>
 #include <vector>
-
 #include "paddle/framework/dim.h"
+#include "paddle/framework/enforce.h"
+#include "unsupported/Eigen/CXX11/Tensor"
 
 namespace paddle {
 namespace framework {
@@ -102,6 +117,17 @@ int arity(const DDim& ddim);
 
 std::ostream& operator<<(std::ostream&, const DDim&);
 
+template <int NDIMS>
+Eigen::DSizes<Eigen::DenseIndex, NDIMS> ToEigenDSizes(const DDim& dims) {
+  int rank = arity(dims);
+  PADDLE_ENFORCE(rank == NDIMS, "DDim and NDIMS must be same");
+  Eigen::DSizes<Eigen::DenseIndex, NDIMS> dsizes;
+  for (int d = 0; d < rank; d++) {
+    dsizes[d] = dims[d];
+  }
+  return dsizes;
+}
+
 }  // namespace framework
 }  // namespace paddle
 

paddle/framework/operator.cc

@@ -19,6 +19,20 @@ limitations under the License. */
 namespace paddle {
 namespace framework {
 
+template <>
+Eigen::DefaultDevice* KernelContext::GetEigenDevice<
+    platform::CPUPlace, Eigen::DefaultDevice>() const {
+  return device_context_.get_eigen_device<Eigen::DefaultDevice>();
+}
+
+#ifndef PADDLE_ONLY_CPU
+template <>
+Eigen::GpuDevice*
+KernelContext::GetEigenDevice<platform::GPUPlace, Eigen::GpuDevice>() const {
+  return device_context_.get_eigen_device<Eigen::GpuDevice>();
+}
+#endif
+
 void OperatorBase::CreateInOutOffsetMap(const OpProto& proto) {
   PADDLE_ENFORCE(in_out_idxs_.empty(), "duplicate call CreateInOutOffsetMap");
   for (int i = 0; i < proto.inputs_size(); i++) {

paddle/framework/operator.h

@@ -31,6 +31,21 @@ limitations under the License. */
 namespace paddle {
 namespace framework {
 
+template <typename T>
+struct EigenDeviceConverter;
+
+template <>
+struct EigenDeviceConverter<platform::CPUPlace> {
+  using EigenDeviceType = Eigen::DefaultDevice;
+};
+
+#ifndef PADDLE_ONLY_CPU
+template <>
+struct EigenDeviceConverter<platform::GPUPlace> {
+  using EigenDeviceType = Eigen::GpuDevice;
+};
+#endif
+
 class OperatorBase;
 using OperatorPtr = std::shared_ptr<OperatorBase>;
 /**
@@ -134,6 +149,13 @@ class KernelContext {
     return res;
   }
 
+  template <typename PlaceType,
+            typename DeviceType =
+                typename EigenDeviceConverter<PlaceType>::EigenDeviceType>
+  DeviceType* GetEigenDevice() const;
+
+  platform::Place GetPlace() const { return device_context_.GetPlace(); }
+
   const OperatorBase& op_;
   const std::shared_ptr<Scope>& scope_;
   const platform::DeviceContext& device_context_;
@@ -147,6 +169,7 @@ class OpKernel {
    * device resource such as CUDA stream, cublas handle, etc. from
    * KernelContext. User should construct it before run the Operator.
    */
+
   virtual void Compute(const KernelContext& context) const = 0;
 
   virtual ~OpKernel() {}

paddle/framework/tensor.h

@@ -19,8 +19,10 @@ limitations under the License. */
 #include <memory>
 #include "paddle/framework/ddim.h"
 #include "paddle/framework/enforce.h"
+#include "paddle/framework/tensor_types.h"
 #include "paddle/memory/memory.h"
 #include "paddle/platform/place.h"
+#include "unsupported/Eigen/CXX11/Tensor"
 
 namespace paddle {
 namespace framework {
@@ -36,6 +38,13 @@ class Tensor {
         reinterpret_cast<uintptr_t>(holder_->ptr()) + offset_);
   }
 
+  template <typename T>
+  T* raw_data() const {
+    CheckDims<T>();
+    return reinterpret_cast<T*>(reinterpret_cast<uintptr_t>(holder_->ptr()) +
+                                offset_);
+  }
+
   template <typename T>
   T* mutable_data(DDim dims, platform::Place place) {
     set_dims(dims);
@@ -70,6 +79,66 @@ class Tensor {
                                 offset_);
   }
 
+  template <typename T, size_t NDIMS>
+  typename TTypes<T, NDIMS>::Tensor shaped(DDim new_dims) {
+    Eigen::array<Eigen::DenseIndex, NDIMS> dims =
+        paddle::framework::ToEigenDSizes<NDIMS>(new_dims);
+    return typename TTypes<T, NDIMS>::Tensor(raw_data<T>(), dims);
+  }
+
+  template <typename T, size_t NDIMS>
+  typename TTypes<T, NDIMS>::Tensor tensor() {
+    return typename TTypes<T, NDIMS>::Tensor(
+        raw_data<T>(), paddle::framework::ToEigenDSizes<NDIMS>(dims_));
+  }
+
+  // flat to rank = 1
+  template <typename T>
+  typename TTypes<T>::Flat flat() {
+    return shaped<T, 1>(make_ddim({static_cast<int>(product(dims_))}));
+  }
+
+  // to TensorType Vec
+  template <typename T>
+  typename TTypes<T>::Vec vec() {
+    return tensor<T, 1>();
+  }
+
+  // to TensorType Matrix
+  template <typename T>
+  typename TTypes<T>::Matrix matrix() {
+    return tensor<T, 2>();
+  }
+
+  // const versions of all the methods above.
+  template <typename T, size_t NDIMS>
+  typename TTypes<T, NDIMS>::Tensor shaped(DDim new_dims) const {
+    Eigen::array<Eigen::DenseIndex, NDIMS> dims =
+        paddle::framework::ToEigenDSizes<NDIMS>(new_dims);
+    return typename TTypes<T, NDIMS>::Tensor(data<T>(), dims);
+  }
+
+  template <typename T, size_t NDIMS>
+  typename TTypes<T, NDIMS>::ConstantTensor tensor() const {
+    return typename TTypes<T, NDIMS>::Tensor(
+        data<T>(), paddle::framework::ToEigenDSizes<NDIMS>(dims_));
+  }
+
+  template <typename T>
+  typename TTypes<T>::ConstFlat flat() const {
+    return shaped<T, 1>(make_ddim({static_cast<int>(product(dims_))}));
+  }
+
+  template <typename T>
+  typename TTypes<T>::ConstVec vec() const {
+    return tensor<T, 1>();
+  }
+
+  template <typename T>
+  typename TTypes<T>::ConstMatrix matrix() const {
+    return tensor<T, 2>();
+  }
+
   template <typename T>
   void ShareDataFrom(const Tensor& src) {
     src.CheckDims<T>();

paddle/framework/tensor_types.h

@@ -0,0 +1,67 @@
+/* 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 "unsupported/Eigen/CXX11/Tensor"
+
+namespace paddle {
+namespace framework {
+
+// Helper to define Tensor types given that the scalar is of type T.
+template <typename T, int NDIMS = 1, typename IndexType = Eigen::DenseIndex>
+struct TTypes {
+  // Rank-<NDIMS> tensor of scalar type T.
+  typedef Eigen::TensorMap<Eigen::Tensor<T, NDIMS, Eigen::RowMajor, IndexType>,
+                           Eigen::Aligned>
+      Tensor;
+  typedef Eigen::TensorMap<
+      Eigen::Tensor<const T, NDIMS, Eigen::RowMajor, IndexType>, Eigen::Aligned>
+      ConstTensor;
+
+  // Scalar tensor (implemented as a rank-0 tensor) of scalar type T.
+  typedef Eigen::TensorMap<
+      Eigen::TensorFixedSize<T, Eigen::Sizes<>, Eigen::RowMajor, IndexType>,
+      Eigen::Aligned>
+      Scalar;
+  typedef Eigen::TensorMap<Eigen::TensorFixedSize<const T, Eigen::Sizes<>,
+                                                  Eigen::RowMajor, IndexType>,
+                           Eigen::Aligned>
+      ConstScalar;
+
+  // Rank-1 tensor (vector) of scalar type T.
+  typedef Eigen::TensorMap<Eigen::Tensor<T, 1, Eigen::RowMajor, IndexType>,
+                           Eigen::Aligned>
+      Flat;
+  typedef Eigen::TensorMap<
+      Eigen::Tensor<const T, 1, Eigen::RowMajor, IndexType>, Eigen::Aligned>
+      ConstFlat;
+  typedef Eigen::TensorMap<Eigen::Tensor<T, 1, Eigen::RowMajor, IndexType>,
+                           Eigen::Aligned>
+      Vec;
+  typedef Eigen::TensorMap<
+      Eigen::Tensor<const T, 1, Eigen::RowMajor, IndexType>, Eigen::Aligned>
+      ConstVec;
+
+  // Rank-2 tensor (matrix) of scalar type T.
+  typedef Eigen::TensorMap<Eigen::Tensor<T, 2, Eigen::RowMajor, IndexType>,
+                           Eigen::Aligned>
+      Matrix;
+  typedef Eigen::TensorMap<
+      Eigen::Tensor<const T, 2, Eigen::RowMajor, IndexType>, Eigen::Aligned>
+      ConstMatrix;
+};
+
+}  // namespace framework
+}  // namespace paddle

paddle/operators/add_op.cc

@@ -1,20 +1,20 @@
 /* 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
+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
+    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. */
+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/op_registry.h>
-#include <paddle/framework/tensor.h>
-#include <paddle/operators/add_op.h>
+#include "paddle/operators/add_op.h"
+#include "paddle/framework/op_registry.h"
+#include "paddle/framework/tensor.h"
 
 namespace paddle {
 namespace operators {
@@ -31,8 +31,7 @@ class AddOp : public framework::OperatorWithKernel {
         "Inputs/Outputs of AddOp must all be set");
     PADDLE_ENFORCE(inputs[0]->dims() == inputs[1]->dims(),
                    "Two input of Add Op's dimension must be same.");
-    // Need set dims in Tensor
-    // outputs[0]->set_dims(inputs[0]->dims())
+    outputs[0]->set_dims(inputs[0]->dims());
   }
 };
 
@@ -54,5 +53,6 @@ The equation is: Out = X + Y
 }  // namespace paddle
 
 REGISTER_OP(add_two, paddle::operators::AddOp, paddle::operators::AddOpMaker);
-REGISTER_OP_CPU_KERNEL(
-    add_two, ::paddle::operators::AddKernel<::paddle::platform::CPUPlace>);
+typedef paddle::operators::AddKernel<::paddle::platform::CPUPlace, float>
+    AddKernel_CPU_float;
+REGISTER_OP_CPU_KERNEL(add_two, AddKernel_CPU_float);

paddle/operators/add_op.cu

@@ -1,5 +1,6 @@
-#include <paddle/operators/add_op.h>
-#include <paddle/framework/op_registry.h>
+#include "paddle/operators/add_op.h"
+#include "paddle/framework/op_registry.h"
 
+typedef paddle::operators::AddKernel<::paddle::platform::GPUPlace, float> AddKernel_GPU_float;
 REGISTER_OP_GPU_KERNEL(add_two,
-                       paddle::operators::AddKernel<paddle::platform::GPUPlace>);
+                       AddKernel_GPU_float);

paddle/operators/add_op.h

@@ -1,15 +1,36 @@
+/* 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 <glog/logging.h>
-#include <paddle/framework/operator.h>
+#include "glog/logging.h"
+#include "paddle/framework/operator.h"
 
 namespace paddle {
 namespace operators {
 
-template <typename Place>
+template <typename Place, typename T>
 class AddKernel : public framework::OpKernel {
 public:
-  void Compute(const framework::KernelContext &context) const override {
-    LOG(INFO) << "Add kernel in " << typeid(Place).name();
+  void Compute(const framework::KernelContext& context) const override {
+    auto input0 = context.Input(0)->Get<framework::Tensor>();
+    auto input1 = context.Input(1)->Get<framework::Tensor>();
+    auto* output = context.Output(0)->GetMutable<framework::Tensor>();
+
+    output->mutable_data<T>(context.GetPlace());
+
+    output->flat<T>().device(*(context.GetEigenDevice<Place>())) =
+        input0.flat<T>() + input1.flat<T>();
   }
 };