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70 lines
2.1 KiB
70 lines
2.1 KiB
// Copyright (c) 2018 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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#pragma once
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#include <string>
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#include <vector>
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#include "paddle/fluid/framework/operator.h"
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#include "paddle/fluid/framework/program_desc.h"
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#include "paddle/fluid/framework/scope.h"
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#include "paddle/fluid/platform/device_context.h"
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namespace paddle {
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namespace framework {
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/*
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* Simple, intuitive and effective. Only single thread is supported, and
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* currently designed for inference.
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*/
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class NaiveExecutor {
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public:
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explicit NaiveExecutor(const platform::Place& place) : place_(place) {}
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// Create child scope.
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// Create variables.
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// @with_feed_fetch_ops: whether to work with the feed and fetch operators.
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void Prepare(Scope* scope, const ProgramDesc& program_desc, int block_id,
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bool with_feed_fetch_ops);
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// Create variables before head.
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// Create parameters if persistable is ture, or create the temporary variables
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// instead.
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void CreateVariables(const ProgramDesc& desc, int block_id, bool persistable,
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Scope* scope);
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// Run all the operators.
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void Run();
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// Get an tensor to operating directly, without the need for feed_ops.
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LoDTensor* FindTensor(const std::string& name);
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Scope* scope() { return scope_; }
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void CleanFeedFetchOps();
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protected:
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void CreateOps(const ProgramDesc& desc, int block_id,
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bool with_feed_fetch_ops);
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private:
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const platform::Place place_;
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// Catch the required resource to avoid recreate.
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std::vector<std::unique_ptr<OperatorBase>> ops_;
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Scope* scope_;
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};
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} // namespace framework
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} // namespace paddle
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