makefile for C ++ / CUDA项目 [英] makefile for C++/CUDA project

问题描述

我已阅读几乎所有关于CUDA，C ++& makefile在这里，但仍然不能解决我的问题。

I've read almost all questions about CUDA, C++ & makefiles here, but still can't figure solution to my problem.

我有一些 .cpp 文件& ;一些 .cu 文件在我的项目的 src / 目录中（ .h & .cuh ），我想用makefile创建我的应用程序。

I have a some .cpp files & some .cu files inside src/ directory of my project (along with .h & .cuh), and I'd like to build my application with a makefile.

我尝试这样做：

SRC_DIR   = src
OBJ_DIR   = obj

CPP_FILES = $(wildcard $(SRC_DIR)/*.cpp)
CU_FILES  = $(wildcard $(SRC_DIR)/*.cu)

H_FILES   = $(wildcard $(SRC_DIR)/*.h)
CUH_FILES = $(wildcard $(SRC_DIR)/*.cuh)

OBJ_FILES = $(addprefix $(OBJ_DIR)/,$(notdir $(CPP_FILES:.cpp=.o)))
CUO_FILES = $(addprefix $(OBJ_DIR)/,$(notdir $(CU_FILES:.cu=.cu.o)))

$(TARGET) : $(OBJ_FILES) $(CUO_FILES)
    $(LD) $(LDFLAGS) $(LIB_CUDA) -o $@ $?

$(CUO_FILES) : $(CU_FILES) $(CUH_FILES)
    $(NVCC) $(NVCCFLAGS) $(INCLUDES) -c -o $@ $<

$(OBJ_DIR)/%.o : $(SRC_DIR)/%.cpp $(H_FILES)
    $(NVCC) $(NVCCFLAGS) $(INCLUDES) -c -o $@ $<

这是正常的，直到我有一个.cu文件。
然后我尝试：

And it was OK until I've got a second .cu file. And then I tried:

<... previous part stays the same ...>
OBJS =  $(patsubst %.cpp,$(OBJ_DIR)/%.o,$(notdir $(CPP_FILES)))
OBJS += $(patsubst %.cu,$(OBJ_DIR)/%.cu.o,$(notdir $(CU_FILES)))

$(TARGET) : $(OBJS)
    $(LD) $(LDFLAGS) $(LIB_CUDA) -o $@ $?

$(OBJ_DIR)/%.cu.o : $(SRC_DIR)/%.cu $(CUH_FILES)
    $(NVCC) $(NVCCFLAGS) $(INCLUDES) -c -o $@ $<

$(OBJ_DIR)/%.o : $(SRC_DIR)/%.cpp $(H_FILES)
    $(NVCC) $(NVCCFLAGS) $(INCLUDES) -c -o $@ $<

但 make 无法弄清楚如何制作 .cuoo 文件。
我应该如何修改这个东西来构建我的应用程序？

But make can't figure out how to make any of the .cu.o files now. How should I modify this thing to build my application?

提前感谢！

strong>更新 - 使用第二个makefile输出make：

Upd - output of make with second makefile:

/usr/local/cuda/bin/nvcc  -I/usr/local/cuda/include -c -o obj/main.o src/main.cpp
/usr/local/cuda/bin/nvcc  -I/usr/local/cuda/include -c -o obj/util.o src/util.cpp
make: *** No rule to make target `obj/thrust.cu.o', needed by `DCG'.  Stop.

项目文件（src /）：

project files (src/):

• main.cpp


• utils.h


• util.cpp


• thrust.cu


• thrust.cuh


• cuda-utils.cu


• cuda-utils.cuh

• main.cpp
• utils.h
• util.cpp
• thrust.cu
• thrust.cuh
• cuda-utils.cu
• cuda-utils.cuh

推荐答案

或者你有一个语法错误在你没有显示的地方，的项目不是你所描述的。如果我使用你的Makefile的这个模型：

Either you have a syntax error in your Makefile somewhere you are not showing, or the layout of your project isn't as you have described. If I take this model of your Makefile:

TARGET    = nothing
SRC_DIR   = src
OBJ_DIR   = obj

CPP_FILES = $(wildcard $(SRC_DIR)/*.cpp)
CU_FILES  = $(wildcard $(SRC_DIR)/*.cu)

H_FILES   = $(wildcard $(SRC_DIR)/*.h)
CUH_FILES = $(wildcard $(SRC_DIR)/*.cuh)

OBJ_FILES = $(addprefix $(OBJ_DIR)/,$(notdir $(CPP_FILES:.cpp=.o)))
CUO_FILES = $(addprefix $(OBJ_DIR)/,$(notdir $(CU_FILES:.cu=.

OBJS =  $(patsubst %.cpp,$(OBJ_DIR)/%.o,$(notdir $(CPP_FILES)))
OBJS += $(patsubst %.cu,$(OBJ_DIR)/%.cu.o,$(notdir $(CU_FILES)))

$(TARGET) : $(OBJS)
    echo "linking rule : " -o $@ $?

$(OBJ_DIR)/%.cu.o : $(SRC_DIR)/%.cu $(CUH_FILES)
    echo ".cu.o rule : " $@ $<
    touch $@

$(OBJ_DIR)/%.o : $(SRC_DIR)/%.cpp $(H_FILES)
    echo ".o rule : " $@ $<
    touch $@

然后我创建一个你所描述的模型：

and then I make a model of what you have described:

$ mkdir src
$ mkdir obj
$ touch  src/main.cpp
$ touch  src/cuda-utils.cuh
$ touch  src/thrust.cu
$ touch  src/cuda-utils.cu
$ touch  src/util.cpp
$ touch  src/main.cpp

$ ls
Makefile    obj     src

$ ls src
cuda-utils.cu   cuda-utils.cuh  main.cpp    thrust.cu   util.cpp

$ ls obj

然后我运行make：

$ make
echo ".o rule : " obj/main.o src/main.cpp
.o rule :  obj/main.o src/main.cpp
touch obj/main.o
echo ".o rule : " obj/util.o src/util.cpp
.o rule :  obj/util.o src/util.cpp
touch obj/util.o
echo ".cu.o rule : " obj/cuda-utils.cu.o src/cuda-utils.cu
.cu.o rule :  obj/cuda-utils.cu.o src/cuda-utils.cu
touch obj/cuda-utils.cu.o
echo ".cu.o rule : " obj/thrust.cu.o src/thrust.cu
.cu.o rule :  obj/thrust.cu.o src/thrust.cu
touch obj/thrust.cu.o
echo "linking rule : " -o nothing obj/main.o obj/util.o obj/cuda-utils.cu.o obj/thrust.cu.o
linking rule :  -o nothing obj/main.o obj/util.o obj/cuda-utils.cu.o obj/thrust.cu.o

$ ls obj
cuda-utils.cu.o main.o      thrust.cu.o util.o

我得到的是正确的。所以如果你有一个问题，它不是从你发布的问题（在原来的版本中的几个拼写错误修复后）。

I get exactly what is expected. So if you are having a problem, it is not coming from what you have posted in your question (after the several "typos" in the original version were fixed).

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