Linux C++ compile

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c++ complie

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g++ --std=c++11 changeFuYunRecord.cpp -o changefyrecord -g -O0 -lpthread

g++ --std=c++11 data_gen.cpp -o gen_data -g -O0 -lpthread

MakeFileDemo

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cmake_minimum_required (VERSION 2.8.8)
project (ddzpeiwan)

# cmake寻找cuda，这个要现在系统里面装好cuda，设置好cuda的环境参数啥的
FIND_PACKAGE(CUDA REQUIRED)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -std=c++17  -pthread  -W ")
SET(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};-gencode arch=compute_70,code=sm_70;-std=c++11;)

link_directories(
/usr/local/lib/libjsoncpp.a
/home/user/wanran/lib
/home/user/wanran/TensorRT-5.1.5.0/lib
/usr/local/cuda-10.0/targets/x86_64-linux/lib/)

include_directories(
   ./include
   /usr/src/tensorrt/samples/common
   /home/user/wanran/include
   /usr/local/include/eigen3
   /usr/include/x86_64-linux-gnu
   /usr/local/cuda-10.0/targets/x86_64-linux/include/
   ) 

CUDA_ADD_EXECUTABLE(ddzpeiwan
            main.cpp 
        aimodel.cpp
            cfg_reader.cpp
            util.cpp
        logger.cpp
            exception.cpp
            ThreadMod.cpp
            TreatorBase.cpp
            truncation_cards.cpp
            UnixTime.cpp
        PollServer.cpp
        TFService.cpp
            ddz_utils.cpp) 
        target_link_libraries(ddzpeiwan tensorflow_cc tensorflow_framework cudart nvinfer nvparsers glog jsoncpp )

makefiles

cmake_minimum_required (VERSION 2.8.8)

project (ddzpeiwan)

FIND_PACKAGE

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find_package(PythonLibs 3 REQUIRED)

include_directories

CUDA_ADD_EXECUTABLE

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CUDA_ADD_EXECUTABLE( cuda_target file0 file1 ...
                     [WIN32] [MACOSX_BUNDLE] [EXCLUDE_FROM_ALL] [OPTIONS ...] )
-- Creates an executable "cuda_target" which is made up of the files
   specified.  All of the non CUDA C files are compiled using the standard
   build rules specified by CMAKE and the cuda files are compiled to object
   files using nvcc and the host compiler.  In addition CUDA_INCLUDE_DIRS is
   added automatically to include_directories().  Some standard CMake target
   calls can be used on the target after calling this macro
   (e.g. set_target_properties and target_link_libraries), but setting
   properties that adjust compilation flags will not affect code compiled by
   nvcc.  Such flags should be modified before calling CUDA_ADD_EXECUTABLE,
   CUDA_ADD_LIBRARY or CUDA_WRAP_SRCS.

https://cmake.org/cmake/help/v3.0/module/FindCUDA.html

target_link_libraries里库文件的顺序符合gcc链接顺序的规则，即被依赖的库放在依赖它的库的后面，比如

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target_link_libraries(hello A B.a C.so)

在上面的命令中，libA.so可能依赖于libB.a和libC.so，如果顺序有错，链接时会报错。还有一点，B.a会告诉CMake优先使用静态链接库libB.a，C.so会告诉CMake优先使用动态链接库libC.so，也可直接使用库文件的相对路径或绝对路径。使用绝对路径的好处在 于，当依赖的库被更新时，make的时候也会重新链接。