Update the demo code and the doc of varbase.backward. (#26506)
* update the demo code and the doc of varbase.backward. * update the doc of the fake interface `paddle.fluid.Variable`. * remove BackwardStrategy.revert-26856-strategy_example2
Zhen Wang
5 years ago
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GitHub
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// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
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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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// Created by Jiabin on 2019-04-25.
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//
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#pragma once
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namespace paddle {
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namespace imperative {
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namespace detail {
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struct BackwardStrategy {
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/* DyGraph now support two kinds of backward strategy, one is sorted sum
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* gradient, another is sum gradient once they are created */
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// TODO(jiabin): add more Strategy when we support
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bool sorted_sum_gradient_{false};
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};
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} // namespace detail
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} // namespace imperative
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} // namespace paddle
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# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
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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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from paddle.fluid import core
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__all__ = ["BackwardStrategy"]
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BackwardStrategy = core.BackwardStrategy
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