aboutsummaryrefslogtreecommitdiffhomepage
path: root/unsupported/Eigen/CXX11/src/Tensor/TensorArgMaxSycl.h
diff options
context:
space:
mode:
Diffstat (limited to 'unsupported/Eigen/CXX11/src/Tensor/TensorArgMaxSycl.h')
-rw-r--r--unsupported/Eigen/CXX11/src/Tensor/TensorArgMaxSycl.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorArgMaxSycl.h b/unsupported/Eigen/CXX11/src/Tensor/TensorArgMaxSycl.h
new file mode 100644
index 000000000..8f76b8254
--- /dev/null
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorArgMaxSycl.h
@@ -0,0 +1,146 @@
+// 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 typename XprType::Scalar 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 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::Index Scalar;
+ typedef Index CoeffReturnType;
+ typedef typename XprType::CoeffReturnType TupleType;
+ typedef typename TensorEvaluator<ArgType, SyclKernelDevice>::Dimensions Dimensions;
+
+ enum {
+ IsAligned = false,
+ PacketAccess = false,
+ BlockAccess = 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