CMake support for Arapaho API

[DarkStar1997]

Can you please add CMake support for the Arapaho API and provide a sample CMakeLists.txt to be used as a template?

[prabindh]

Without CMake support for the underlying darknet (+CUDA+openCV), just for the arapaho project is not very fruitful. In any case it is trivial to make a CMake file for arapaho alone. Are you facing any issues ?

[DarkStar1997]

cmake_minimum_required(VERSION 2.8.12)

set(cmake_cxx_flags "-Ofast -std=c++14 -DOPENCV -DGPU -DCUDNN")

find_package(OpenCV REQUIRED)
find_package(CUDA REQUIRED)

include_directories(/home/rohan/Downloads/Compressed/darknet/src)
include_directories(/home/rohan/Downloads/Compressed/darknet/include)

link_directories(${CMAKE_CURRENT_SOURCE_DIR})

macro(add_code name)
   add_executable(arapaho ${CMAKE_CURRENT_SOURCE_DIR}/${name}.cpp ${CMAKE_CURRENT_SOURCE_DIR}/arapaho.cpp)
   target_link_libraries(arapaho ${OpenCV_LIBS} darknet-cpp-shared tbb ${CUDA_LIBRARIES} ${CUDA_CUBLAS_LIBRARIES} cudnn)
endmacro()

add_code(test)

This is the CMakeLists.txt file I tried to use. It compiles and links fine but due to some strange problem, it compiles but just before running it gives a segmentation fault and crashes.

[prabindh]

Please ensure the c++ flags are same as that used in the darknet-cpp build (ex c++14)

[DarkStar1997]

It was silly on my part, but even after changing it is running fine but not detecting anything. This is my current CMakeLists.txt:

cmake_minimum_required(VERSION 2.8.12)

set(cmake_cxx_flags "-Ofast -std=c++14 -DOPENCV -DGPU -DCUDNN")

find_package(OpenCV REQUIRED)
find_package(CUDA REQUIRED)

include_directories(/home/rohan/Downloads/Compressed/darknet/src)
include_directories(/home/rohan/Downloads/Compressed/darknet/include)

link_directories(${CMAKE_CURRENT_SOURCE_DIR})

macro(add_code name)
   add_executable(arapaho ${CMAKE_CURRENT_SOURCE_DIR}/${name}.cpp ${CMAKE_CURRENT_SOURCE_DIR}/arapaho.cpp)
   target_link_libraries(arapaho ${OpenCV_LIBS} darknet-cpp-shared tbb ${CUDA_LIBRARIES} ${CUDA_CUBLAS_LIBRARIES} cudnn)
endmacro()

add_code(test)

And this is the raw Makefile which was working correctly for Arapaho:

# Makefile to build the test-wrapper for Arapaho
# Undefine GPU, CUDNN if darknet was built without these defined. These 2 flags have to match darknet flags.
# https://github.com/prabindh/darknet

GPU=1
CUDNN=1
DEBUG=0

CC_CPP=g++
CFLAGS_CPP=-Wno-write-strings -std=c++14

OPTS=-Ofast
OPTS+=-march=native
LDFLAGS= -L./ -ldarknet-cpp-shared -ltbb
LDFLAGS+= -Wl,-rpath,'$$ORIGIN'
LDFLAGS+= `pkg-config --libs opencv`
COMMON= -I../src/ -I../include
COMMON+= `pkg-config --cflags opencv`
CFLAGS=-Wall -Wfatal-errors

ifeq ($(DEBUG), 1)
OPTS=-O0 -g
COMMON+= -D_DEBUG
CFLAGS+= -D_DEBUG
endif

CFLAGS+=$(OPTS)

ifeq ($(GPU), 1)
COMMON+= -DGPU -I/opt/cuda/include/
CFLAGS+= -DGPU
LDFLAGS+= -L/opt/cuda/lib64 -lcuda -lcudart -lcublas -lcurand
endif

ifeq ($(CUDNN), 1)
COMMON+= -DCUDNN
CFLAGS+= -DCUDNN
LDFLAGS+= -lcudnn
endif

EXEC_CPP=arapaho
OBJDIR_CPP=./obj-cpp/
OBJ=test.o arapaho.o
OBJS= $(addprefix $(OBJDIR), $(OBJ))
DEPS= $(wildcard *.hpp) Makefile

OBJS_CPP = $(addprefix $(OBJDIR_CPP), $(OBJ))

all: obj-cpp $(EXEC_CPP)

$(EXEC_CPP): obj-cpp clean $(OBJS_CPP)
	$(CC_CPP) $(COMMON) $(CFLAGS) $(OBJS_CPP) -o $@ $(LDFLAGS)

$(OBJDIR_CPP)%.o: %.cpp $(DEPS)
	$(CC_CPP) $(COMMON) $(CFLAGS_CPP) $(CFLAGS) -c $< -o $@


obj-cpp:
	mkdir -p $(OBJDIR_CPP)

.PHONY: clean

clean:
	rm -rf $(OBJS_CPP) $(EXEC_CPP)

What else needs to be done???

[prabindh]

Please share the full log of compile/link step with CMake.

[DarkStar1997]

CMakeOutput.log

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Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: /usr/bin/c++ 
Build flags: 
Id flags:  

The output was:
0


Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "a.out"

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  collapse library dir [/opt/intel/compilers_and_libraries_2019.4.243/linux/tbb/lib/intel64/gcc4.7] ==> [/opt/intel/compilers_and_libraries_2019.4.243/linux/tbb/lib/intel64/gcc4.7]
  collapse library dir [/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.0/../../..] ==> [/usr/lib]
  implicit libs: [stdc++;m;gcc_s;gcc;c;gcc_s;gcc]
  implicit dirs: [/opt/intel/compilers_and_libraries_2019.4.243/linux/mpi/intel64/libfabric/lib;/usr/lib/gcc/x86_64-pc-linux-gnu/9.1.0;/usr/lib;/lib;/opt/intel/compilers_and_libraries_2019.4.243/linux/ipp/lib/intel64;/opt/intel/compilers_and_libraries_2019.4.243/linux/compiler/lib/intel64_lin;/opt/intel/compilers_and_libraries_2019.4.243/linux/mkl/lib/intel64_lin;/opt/intel/compilers_and_libraries_2019.4.243/linux/tbb/lib/intel64/gcc4.7]
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Determining if the include file pthread.h exists passed with the following output:
Change Dir: /home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_11e84/fast && /usr/bin/make -f CMakeFiles/cmTC_11e84.dir/build.make CMakeFiles/cmTC_11e84.dir/build
make[1]: Entering directory '/home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_11e84.dir/CheckIncludeFile.c.o
/usr/bin/cc   -fPIC    -o CMakeFiles/cmTC_11e84.dir/CheckIncludeFile.c.o   -c /home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp/CheckIncludeFile.c
Linking C executable cmTC_11e84
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_11e84.dir/link.txt --verbose=1
/usr/bin/cc -fPIC     -rdynamic CMakeFiles/cmTC_11e84.dir/CheckIncludeFile.c.o  -o cmTC_11e84 
make[1]: Leaving directory '/home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp'



Determining if the function pthread_create exists in the pthread passed with the following output:
Change Dir: /home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make cmTC_c3a77/fast && /usr/bin/make -f CMakeFiles/cmTC_c3a77.dir/build.make CMakeFiles/cmTC_c3a77.dir/build
make[1]: Entering directory '/home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_c3a77.dir/CheckFunctionExists.c.o
/usr/bin/cc   -fPIC -DCHECK_FUNCTION_EXISTS=pthread_create   -o CMakeFiles/cmTC_c3a77.dir/CheckFunctionExists.c.o   -c /usr/share/cmake-3.15/Modules/CheckFunctionExists.c
Linking C executable cmTC_c3a77
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_c3a77.dir/link.txt --verbose=1
/usr/bin/cc -fPIC -DCHECK_FUNCTION_EXISTS=pthread_create    -rdynamic CMakeFiles/cmTC_c3a77.dir/CheckFunctionExists.c.o  -o cmTC_c3a77 -lpthread 
make[1]: Leaving directory '/home/rohan/Downloads/Compressed/darknet/Insight/build/CMakeFiles/CMakeTmp'

link.txt

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