yolov8实战第六天——yolov8 TensorRT C++ 部署——(踩坑,平坑,保姆教程)

学术菜鸟小晨 2024-07-17 14:35:03 阅读 93

C++ 结合 TensorRT 部署深度学习模型有几个关键优势,这些优势在各种工业和商业应用中极其重要:

高效的性能:TensorRT 通过优化深度学习模型来提高推理速度,减少延迟。这对于实时处理应用(如视频分析、机器人导航等)至关重要。

降低资源消耗:TensorRT 优化了模型以在GPU上高效运行,这意味着更低的内存占用和更高的吞吐量。对于资源受限的环境或在多任务并行处理的情况下,这是一个显著优势。

跨平台和硬件兼容性:C++ 是一种跨平台语言,配合 TensorRT,可以在多种硬件和操作系统上部署深度学习模型,包括嵌入式设备和服务器。

准确性和稳定性:TensorRT 提供了精确的数学和统计方法来减少浮点运算误差,这对于确保深度学习应用的准确性和稳定性至关重要。

定制和灵活性:使用 C++ 和 TensorRT,开发者可以高度定制他们的深度学习应用。这包括调整模型结构、优化算法和调节性能参数以满足特定需求。

支持复杂网络和大规模部署:TensorRT 支持最新的深度学习网络结构,并能够处理复杂的计算任务。这对于需要部署大型、复杂网络的工业应用来说是必要的。

易于集成和扩展:C++ 提供了与其他系统和工具(如数据库、网络服务等)集成的灵活性。此外,TensorRT 也可以轻松与其他NVIDIA工具链(如CUDA、cuDNN等)集成。

 

一、准备

下载YOLOv8项目和Tensorrt部署项目,TensorRT C++代码选择:

https://github.com/xiaocao-tian/yolov8_tensorrt

yolov8参考前几天的ultralytics。

在ultralytics新建weights文件夹,放入yolov8s.pt.

将src的gen_wts.py,复制到ultralytics。

运行gen_wts.py,生成 yolov8s.wts.

 

 

再将weights复制到 yolov8 TensorRT。

 

二、环境准备 

1.vs配置

我下载的是vs2022,只安装c++的桌面开发。

踩坑1:特别注意,请先安装Visual Studio 2019,再安装CUDA。这样做的目的是避免在Visual Studio 2019中看不到CUDA runtime模板。CUDA安装过程中,会提供cuda模板插件,如果先下载好Visual Studio 2019的情况下,该插件会自动配置。

平坑1:安装好vs2022后,再重装cuda。

cuda和cudnn安装请看:yolov8实战第一天——yolov8部署并训练自己的数据集(保姆式教程)_yolov8训练自己的数据集-CSDN博客

2.cmake配置

Index of /files

下载:cmake-3.28.0-rc1-windows-x86_64.msi 

安装版本,自己添加环境变量。

踩坑2:要验证cmake安装是否成功。 

 

cmake成功安装。

3.opencv、tensorrt配置

opencv安装:C++实战Opencv第一天——win11下配置vs,opencv环境和运行第一个c++代码(从零开始,保姆教学)-CSDN博客

tensorrt安装:

yolov8实战第三天——yolov8TensorRT部署(python推理)(保姆教学)_yolov8 tensorrt python部署-CSDN博客

踩坑3:环境变量的配置

平坑3:opencv、tensorrt、cudnn环境变量配置

至此,vs,cmake,cuda,cudnn,opencv,tensorrt全部配置完成。 

三、编译

在tensorrt项目中新建build文件夹,然后使用cmake编译,注意tensorrt项目中Cmakelist.txt 

分别配置自己opencv和tensorrt的地址即可。

<code>cmake_minimum_required(VERSION 3.10)

project(yolov8)

# Modify to your path

set(OpenCV_DIR "E:/opencv/opencv/build")

set(TRT_DIR "E:/TensorRT-8.6.1.6")

add_definitions(-std=c++11)

add_definitions(-DAPI_EXPORTS)

set(CMAKE_CXX_STANDARD 11)

set(CMAKE_BUILD_TYPE Debug)

# setup CUDA

find_package(CUDA REQUIRED)

message(STATUS "libraries: ${CUDA_LIBRARIES}")

message(STATUS "include path: ${CUDA_INCLUDE_DIRS}")

include_directories(${CUDA_INCLUDE_DIRS})

enable_language(CUDA)

include_directories(${PROJECT_SOURCE_DIR}/include)

include_directories(${PROJECT_SOURCE_DIR}/plugin)

# TensorRT

set(TENSORRT_ROOT "E:/TensorRT-8.6.1.6")

include_directories("${TENSORRT_ROOT}/include")

link_directories("${TENSORRT_ROOT}/lib")

# OpenCV

find_package(OpenCV)

include_directories(${OpenCV_INCLUDE_DIRS})

add_library(myplugins SHARED ${PROJECT_SOURCE_DIR}/plugin/yololayer.cu)

target_link_libraries(myplugins nvinfer cudart)

file(GLOB_RECURSE SRCS ${PROJECT_SOURCE_DIR}/src/*.cpp ${PROJECT_SOURCE_DIR}/src/*.cu)

add_executable(yolov8 ${PROJECT_SOURCE_DIR}/src/main.cpp ${SRCS})

target_link_libraries(yolov8 nvinfer)

target_link_libraries(yolov8 cudart)

target_link_libraries(yolov8 myplugins)

target_link_libraries(yolov8 ${OpenCV_LIBS})

在tensorrt项目中新建build文件夹,然后使用cmake编译,填写如图。

 

 

 踩坑1:No CUDA toolset found.就是找不到cuda。

<code>The C compiler identification is MSVC 19.38.33133.0

The CXX compiler identification is MSVC 19.38.33133.0

Detecting C compiler ABI info

Detecting C compiler ABI info - done

Check for working C compiler: E:/vs2022/Community/VC/Tools/MSVC/14.38.33130/bin/Hostx64/x64/cl.exe - skipped

Detecting C compile features

Detecting C compile features - done

Detecting CXX compiler ABI info

Detecting CXX compiler ABI info - done

Check for working CXX compiler: E:/vs2022/Community/VC/Tools/MSVC/14.38.33130/bin/Hostx64/x64/cl.exe - skipped

Detecting CXX compile features

Detecting CXX compile features - done

CMake Warning (dev) at CMakeLists.txt:15 (find_package):

Policy CMP0146 is not set: The FindCUDA module is removed. Run "cmake

--help-policy CMP0146" for policy details. Use the cmake_policy command to

set the policy and suppress this warning.

This warning is for project developers. Use -Wno-dev to suppress it.

Found CUDA: D:/CUDA (found version "12.0")

libraries: D:/CUDA/lib/x64/cudart_static.lib

include path: D:/CUDA/include

CMake Error at D:/cmake/share/cmake-3.28/Modules/CMakeDetermineCompilerId.cmake:529 (message):

No CUDA toolset found.

Call Stack (most recent call first):

D:/cmake/share/cmake-3.28/Modules/CMakeDetermineCompilerId.cmake:8 (CMAKE_DETERMINE_COMPILER_ID_BUILD)

D:/cmake/share/cmake-3.28/Modules/CMakeDetermineCompilerId.cmake:53 (__determine_compiler_id_test)

D:/cmake/share/cmake-3.28/Modules/CMakeDetermineCUDACompiler.cmake:135 (CMAKE_DETERMINE_COMPILER_ID)

CMakeLists.txt:20 (enable_language)

Configuring incomplete, errors occurred!

踩坑3:找不到cudnn。

User

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "E:\Anaconda3\Lib\site-packages\tensorrt\__init__.py", line 127, in <module>

ctypes.CDLL(find_lib(lib))

^^^^^^^^^^^^^

File "E:\Anaconda3\Lib\site-packages\tensorrt\__init__.py", line 81, in find_lib

raise FileNotFoundError(

FileNotFoundError: Could not find: cudnn64_8.dll. Is it on your PATH?

Note: Paths searched were:

平坑后:警告不用管。configure:

 generate:

然后open Project。

踩坑4:cmake 点 open Project 没反应 。

平坑4在生成的build中找到yolov8.sln,右键打开方式选择vs2022.

 

解决方案右键属性->选择yolov8. 

 

打开main.cpp

先注释 表示生成.engine文件。

<code> //wts_name = "";

注释后直接运行。 

 

 去掉注释,再次执行。

<code>wts_name = "";

 视频太短,长视频fps在100左右。

添加fps代码:

<code> while (char(cv::waitKey(1) != 27)) {

cap >> image;

if (image.empty()) {

std::cerr << "Error: Image not loaded or end of video." << std::endl;

break; // or continue based on your logic

}

auto t_beg = std::chrono::high_resolution_clock::now();

float scale = 1.0;

int img_size = image.cols * image.rows * 3;

cudaMemcpyAsync(image_device, image.data, img_size, cudaMemcpyHostToDevice, stream);

preprocess(image_device, image.cols, image.rows, device_buffers[0], kInputW, kInputH, stream, scale);

context->enqueue(kBatchSize, (void**)device_buffers, stream, nullptr);

cudaMemcpyAsync(output_buffer_host, device_buffers[1], kBatchSize * kOutputSize * sizeof(float), cudaMemcpyDeviceToHost, stream);

cudaStreamSynchronize(stream);

std::vector<Detection> res;

NMS(res, output_buffer_host, kConfThresh, kNmsThresh);

// 计算FPS

frame_counter++;

if (frame_counter % 10 == 0) { // 每10帧更新一次FPS

auto t2 = std::chrono::high_resolution_clock::now();

auto time_span = std::chrono::duration_cast<std::chrono::duration<double>>(t2 - t1);

fps = frame_counter / time_span.count();

t1 = t2;

frame_counter = 0;

}

drawBbox(image, res, scale, labels);

// 将FPS绘制到图像上

cv::putText(image, "FPS: " + std::to_string(fps), cv::Point(10, 30), cv::FONT_HERSHEY_SIMPLEX, 1, cv::Scalar(0, 255, 0), 2);

auto t_end = std::chrono::high_resolution_clock::now();

cv::imshow("Inference", image);

float total_inf = std::chrono::duration<float, std::milli>(t_end - t_beg).count();

std::cout << "Inference time: " << int(total_inf) << std::endl;

}

// cv::waitKey();

cv::destroyAllWindows();



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