// ---------------------------------------------------------------------------- // Copyright 2017 Nervana Systems Inc. // 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 // ---------------------------------------------------------------------------- #pragma once #include <memory> #include <unordered_map> #include "ngraph/runtime/parameterized_tensor_view.hpp" namespace ngraph { class Node; class Function; namespace runtime { class Backend; class Manager; } namespace autodiff { /// @brief Returns a FunctionSpec for the backprop derivative of its argument. /// @param f is f(X_i...) /// @returns f'(X_i..., c) where f'(x_i, ..., c)_j is backprop for X_j std::shared_ptr<Function> backprop_function(const std::shared_ptr<Function>& f); template <typename ET> std::vector<std::shared_ptr<runtime::ParameterizedTensorView<ET>>> backprop_derivative( const std::shared_ptr<runtime::Manager>& manager, const std::shared_ptr<runtime::Backend>& backend, const std::shared_ptr<Function>& f, const std::vector<std::shared_ptr<runtime::ParameterizedTensorView<ET>>>& args); extern template std::vector< std::shared_ptr<runtime::ParameterizedTensorView<ngraph::element::Float32>>> backprop_derivative<ngraph::element::Float32>( const std::shared_ptr<runtime::Manager>& manager, const std::shared_ptr<runtime::Backend>& backend, const std::shared_ptr<Function>& f, const std::vector< std::shared_ptr<runtime::ParameterizedTensorView<element::Float32>>>& args); extern template std::vector< std::shared_ptr<runtime::ParameterizedTensorView<ngraph::element::Float64>>> backprop_derivative<ngraph::element::Float64>( const std::shared_ptr<runtime::Manager>& manager, const std::shared_ptr<runtime::Backend>& backend, const std::shared_ptr<Function>& f, const std::vector< std::shared_ptr<runtime::ParameterizedTensorView<element::Float64>>>& args); } }