| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Mehdi Goli Codeplay Software Ltd. |
| // Ralph Potter Codeplay Software Ltd. |
| // Luke Iwanski Codeplay Software Ltd. |
| // Contact: <eigen@codeplay.com> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| /***************************************************************** |
| * TensorArgMaxSycl.h |
| * \brief: |
| * TensorArgMaxSycl |
| * |
| *****************************************************************/ |
| |
| #ifndef UNSUPPORTED_EIGEN_CXX11_SRC_TENSOR_TENSOR_ARGMAX_SYCL_HPP |
| #define UNSUPPORTED_EIGEN_CXX11_SRC_TENSOR_TENSOR_ARGMAX_SYCL_HPP |
| namespace Eigen { |
| namespace internal { |
| template<typename Dims, typename XprType> |
| struct eval<TensorTupleReducerDeviceOp<Dims, XprType>, Eigen::Dense> |
| { |
| typedef const TensorTupleReducerDeviceOp<Dims, XprType>& type; |
| }; |
| |
| template<typename Dims, typename XprType> |
| struct nested<TensorTupleReducerDeviceOp<Dims, XprType>, 1, |
| typename eval<TensorTupleReducerDeviceOp<Dims, XprType> >::type> |
| { |
| typedef TensorTupleReducerDeviceOp<Dims, XprType> type; |
| }; |
| |
| template<typename StrideDims, typename XprType> |
| struct traits<TensorTupleReducerDeviceOp<StrideDims, XprType> > : public traits<XprType> |
| { |
| typedef traits<XprType> XprTraits; |
| typedef typename XprTraits::StorageKind StorageKind; |
| typedef typename XprTraits::Index Index; |
| typedef Index Scalar; |
| typedef typename XprType::Nested Nested; |
| typedef typename remove_reference<Nested>::type _Nested; |
| static const int NumDimensions = XprTraits::NumDimensions; |
| static const int Layout = XprTraits::Layout; |
| }; |
| |
| |
| }// end namespace internal |
| template<typename StrideDims, typename XprType> |
| class TensorTupleReducerDeviceOp : public TensorBase<TensorTupleReducerDeviceOp<StrideDims, XprType>, ReadOnlyAccessors> |
| { |
| public: |
| typedef typename Eigen::internal::traits<TensorTupleReducerDeviceOp>::Scalar Scalar; |
| typedef typename Eigen::NumTraits<Scalar>::Real RealScalar; |
| typedef typename Eigen::internal::nested<TensorTupleReducerDeviceOp>::type Nested; |
| typedef typename Eigen::internal::traits<TensorTupleReducerDeviceOp>::StorageKind StorageKind; |
| typedef typename Eigen::internal::traits<TensorTupleReducerDeviceOp>::Index Index; |
| typedef typename XprType::CoeffReturnType TupleType; |
| typedef Index CoeffReturnType; |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorTupleReducerDeviceOp(XprType expr, |
| const Index return_dim, |
| const StrideDims strides, |
| const Index stride_mod, const Index stride_div) |
| :m_xpr(expr), m_return_dim(return_dim), m_strides(strides), m_stride_mod(stride_mod), m_stride_div(stride_div) {} |
| |
| EIGEN_DEVICE_FUNC |
| const typename internal::remove_all<typename XprType::Nested>::type& |
| expression() const { return m_xpr; } |
| |
| EIGEN_DEVICE_FUNC |
| Index return_dim() const { return m_return_dim; } |
| |
| EIGEN_DEVICE_FUNC |
| const StrideDims& strides() const { return m_strides; } |
| |
| EIGEN_DEVICE_FUNC |
| const Index& stride_mod() const { return m_stride_mod; } |
| |
| EIGEN_DEVICE_FUNC |
| const Index& stride_div() const { return m_stride_div; } |
| |
| protected: |
| typename Eigen::internal::remove_all<typename |
| XprType::Nested |
| >::type m_xpr; |
| const Index m_return_dim; |
| const StrideDims m_strides; |
| const Index m_stride_mod; |
| const Index m_stride_div; |
| }; |
| |
| |
| // Eval as rvalue |
| template<typename StrideDims, typename ArgType> |
| struct TensorEvaluator<const TensorTupleReducerDeviceOp<StrideDims, ArgType>, SyclKernelDevice> |
| { |
| typedef TensorTupleReducerDeviceOp<StrideDims, ArgType> XprType; |
| typedef typename XprType::Index Index; |
| typedef typename XprType::Scalar Scalar; |
| typedef typename XprType::CoeffReturnType CoeffReturnType; |
| typedef typename XprType::TupleType TupleType; |
| typedef typename TensorEvaluator<ArgType, SyclKernelDevice>::Dimensions Dimensions; |
| |
| enum { |
| IsAligned = false, |
| PacketAccess = false, |
| BlockAccess = false, |
| PreferBlockAccess = false, |
| Layout = TensorEvaluator<ArgType, SyclKernelDevice>::Layout, |
| CoordAccess = false, |
| RawAccess = false |
| }; |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorEvaluator(const XprType& op, const SyclKernelDevice& device) |
| : m_impl(op.expression(), device), m_return_dim(op.return_dim()), m_strides(op.strides()), m_stride_mod(op.stride_mod()), |
| m_stride_div(op.stride_div()){} |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Dimensions& dimensions() const { |
| return m_impl.dimensions(); |
| } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool evalSubExprsIfNeeded(Scalar*) { |
| m_impl.evalSubExprsIfNeeded(NULL); |
| return true; |
| } |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void cleanup() { |
| m_impl.cleanup(); |
| } |
| |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE CoeffReturnType coeff(Index index) const { |
| const TupleType v = m_impl.coeff(index); |
| return (m_return_dim < 0) ? v.first : (v.first % m_stride_mod) / m_stride_div; |
| } |
| typedef typename MakeGlobalPointer<typename TensorEvaluator<ArgType , SyclKernelDevice>::CoeffReturnType >::Type ptr_Dev_type; |
| EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ptr_Dev_type data() const { return const_cast<ptr_Dev_type>(m_impl.data()); } |
| |
| protected: |
| TensorEvaluator<ArgType , SyclKernelDevice> m_impl; |
| const Index m_return_dim; |
| const StrideDims m_strides; |
| const Index m_stride_mod; |
| const Index m_stride_div; |
| }; |
| } // end namespace Eigen |
| #endif //UNSUPPORTED_EIGEN_CXX11_SRC_TENSOR_TENSOR_ARGMAX_SYCL_HPP |