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			124 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			124 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| // Copyright (c) 2022 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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| #pragma once
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| 
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| #include <cuda_runtime_api.h>
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| 
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| #include <iostream>
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| #include <map>
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| #include <string>
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| #include <vector>
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| 
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| #include "NvInfer.h"
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| #include "NvOnnxParser.h"
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| #include "fastdeploy/backends/backend.h"
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| #include "fastdeploy/backends/tensorrt/utils.h"
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| 
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| namespace fastdeploy {
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| 
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| struct TrtValueInfo {
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|   std::string name;
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|   std::vector<int> shape;
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|   nvinfer1::DataType dtype;
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| };
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| 
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| struct TrtBackendOption {
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|   int gpu_id = 0;
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|   bool enable_fp16 = false;
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|   bool enable_int8 = false;
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|   size_t max_batch_size = 32;
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|   size_t max_workspace_size = 1 << 30;
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|   std::map<std::string, std::vector<int32_t>> max_shape;
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|   std::map<std::string, std::vector<int32_t>> min_shape;
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|   std::map<std::string, std::vector<int32_t>> opt_shape;
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|   std::string serialize_file = "";
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| 
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|   // inside parameter, maybe remove next version
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|   bool remove_multiclass_nms_ = false;
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|   std::map<std::string, std::string> custom_op_info_;
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| };
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| 
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| std::vector<int> toVec(const nvinfer1::Dims& dim);
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| size_t TrtDataTypeSize(const nvinfer1::DataType& dtype);
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| FDDataType GetFDDataType(const nvinfer1::DataType& dtype);
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| 
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| class TrtBackend : public BaseBackend {
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|  public:
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|   TrtBackend() : engine_(nullptr), context_(nullptr) {}
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|   void BuildOption(const TrtBackendOption& option);
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| 
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|   bool InitFromPaddle(const std::string& model_file,
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|                       const std::string& params_file,
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|                       const TrtBackendOption& option = TrtBackendOption(),
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|                       bool verbose = false);
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|   bool InitFromOnnx(const std::string& model_file,
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|                     const TrtBackendOption& option = TrtBackendOption(),
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|                     bool from_memory_buffer = false);
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|   bool Infer(std::vector<FDTensor>& inputs, std::vector<FDTensor>* outputs);
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| 
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|   int NumInputs() const { return inputs_desc_.size(); }
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|   int NumOutputs() const { return outputs_desc_.size(); }
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|   TensorInfo GetInputInfo(int index);
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|   TensorInfo GetOutputInfo(int index);
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|   std::vector<TensorInfo> GetInputInfos() override;
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|   std::vector<TensorInfo> GetOutputInfos() override;
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| 
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|   ~TrtBackend() {
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|     if (parser_) {
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|       parser_.reset();
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|     }
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|   }
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| 
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|  private:
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|   TrtBackendOption option_;
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|   std::shared_ptr<nvinfer1::ICudaEngine> engine_;
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|   std::shared_ptr<nvinfer1::IExecutionContext> context_;
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|   FDUniquePtr<nvonnxparser::IParser> parser_;
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|   FDUniquePtr<nvinfer1::IBuilder> builder_;
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|   FDUniquePtr<nvinfer1::INetworkDefinition> network_;
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|   cudaStream_t stream_{};
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|   std::vector<void*> bindings_;
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|   std::vector<TrtValueInfo> inputs_desc_;
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|   std::vector<TrtValueInfo> outputs_desc_;
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|   std::map<std::string, FDDeviceBuffer> inputs_buffer_;
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|   std::map<std::string, FDDeviceBuffer> outputs_buffer_;
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| 
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|   // Sometimes while the number of outputs > 1
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|   // the output order of tensorrt may not be same
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|   // with the original onnx model
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|   // So this parameter will record to origin outputs
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|   // order, to help recover the rigt order
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|   std::map<std::string, int> outputs_order_;
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| 
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|   // temporary store onnx model content
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|   // once it used to build trt egnine done
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|   // it will be released
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|   std::string onnx_model_buffer_;
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|   // Stores shape information of the loaded model
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|   // For dynmaic shape will record its range information
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|   // Also will update the range information while inferencing
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|   std::map<std::string, ShapeRangeInfo> shape_range_info_;
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| 
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|   void GetInputOutputInfo();
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|   bool CreateTrtEngineFromOnnx(const std::string& onnx_model_buffer);
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|   bool BuildTrtEngine();
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|   bool LoadTrtCache(const std::string& trt_engine_file);
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|   int ShapeRangeInfoUpdated(const std::vector<FDTensor>& inputs);
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|   void SetInputs(const std::vector<FDTensor>& inputs);
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|   void AllocateOutputsBuffer(std::vector<FDTensor>* outputs);
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| };
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| 
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| }  // namespace fastdeploy
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