forked from huawei/mindspore2022
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/**
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* Copyright 2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MINDSPORE_CCSRC_FRONTEND_OPTIMIZER_AD_ADJOINT_H_
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#define MINDSPORE_CCSRC_FRONTEND_OPTIMIZER_AD_ADJOINT_H_
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#include <memory>
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#include <utility>
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#include <vector>
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#include "ir/anf.h"
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#include "frontend/optimizer/opt.h"
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namespace mindspore {
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namespace ad {
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class Adjoint {
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public:
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Adjoint(const AnfNodePtr &primal, const AnfNodePtr &k, const FuncGraphPtr &caller);
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~Adjoint() = default;
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AnfNodePtr primal();
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AnfNodePtr k();
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void UpdateK(const AnfNodePtr &k);
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void RegisterKUser(const CNodePtr &user, size_t index);
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AnfNodePtr dout();
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void AccumulateDout(const AnfNodePtr &dout_factor);
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void RegisterDoutUser(const CNodePtr &user, size_t index);
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void CallDoutHole();
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private:
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AnfNodePtr primal_;
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FuncGraphPtr caller_;
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// For ```def f(x): return expr```, The representation graph k is ```def kf(kx): return expr, bprop{expr}```.
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AnfNodePtr k_;
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std::vector<std::pair<CNodePtr, size_t>> k_user_;
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AnfNodePtr dout_;
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AnfNodePtr dout_hole_;
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std::vector<std::pair<CNodePtr, size_t>> dout_user_;
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};
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using AdjointPtr = std::shared_ptr<Adjoint>;
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} // namespace ad
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} // namespace mindspore
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#endif // MINDSPORE_CCSRC_FRONTEND_OPTIMIZER_AD_ADJOINT_H_
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