CUDA 动态并行 MakeFile [英] CUDA Dynamic Parallelism MakeFile
问题描述
这是我第一个使用动态并行的程序,我无法编译代码.我需要能够为我在大学的研究项目运行这个,任何帮助将不胜感激:
This is my first program using Dynamic Parallelism and I am unable to compile the code. I need to be able to run this for my research project at college and any help will be most appreciated:
我收到以下错误:
/cm/shared/apps/cuda50/toolkit/5.0.35/bin/nvcc -m64 -dc -gencode arch=compute_35,code=sm_35 -rdc=true -dlink -po maxrregcount=16 -I/cm/shared/apps/cuda50/toolkit/5.0.35 -I. -I.. -I../../common/inc -o BlackScholes.o -c BlackScholes.cu
g++ -m64 -I/cm/shared/apps/cuda50/toolkit/5.0.35 -I. -I.. -I../../common/inc -o BlackScholes_gold.o -c BlackScholes_gold.cpp
g++ -m64 -o BlackScholes BlackScholes.o BlackScholes_gold.o -L/cm/shared/apps/cuda50/toolkit/5.0.35/lib64 -lcudart -lcudadevrt
BlackScholes.o: In function `__sti____cudaRegisterAll_47_tmpxft_000059cb_00000000_6_BlackScholes_cpp1_ii_c58990ec()':
tmpxft_000059cb_00000000-3_BlackScholes.cudafe1.cpp:(.text+0x1354): undefined reference to `__cudaRegisterLinkedBinary_47_tmpxft_000059cb_00000000_6_BlackScholes_cpp1_ii_c58990ec'
collect2: ld returned 1 exit status
make: *** [BlackScholes] Error 1
我有一个 cpp 文件,一个 cu 文件和一个 cuh 文件.我的 makefile 的重要部分如下:
I have one cpp file, one cu file and one cuh file. Important portions of my makefile are below:
# CUDA code generation flags
#GENCODE_SM10 := -gencode arch=compute_10,code=sm_10
GENCODE_SM20 := -gencode arch=compute_20,code=sm_20
GENCODE_SM30 := -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=sm_35
GENCODE_SM35 := -gencode arch=compute_35,code=sm_35
#GENCODE_FLAGS := $(GENCODE_SM10) $(GENCODE_SM20) $(GENCODE_SM30)
GENCODE_FLAGS := $(GENCODE_SM35)
# OS-specific build flags
ifneq ($(DARWIN),)
LDFLAGS := -Xlinker -rpath $(CUDA_LIB_PATH) -L$(CUDA_LIB_PATH) -lcudart -lcudadevrt
CCFLAGS := -arch $(OS_ARCH)
else
ifeq ($(OS_SIZE),32)
LDFLAGS := -L$(CUDA_LIB_PATH) -lcudart -lcudadevrt
CCFLAGS := -m32
else
LDFLAGS := -L$(CUDA_LIB_PATH) -lcudart -lcudadevrt
CCFLAGS := -m64
endif
endif
# OS-architecture specific flags
ifeq ($(OS_SIZE),32)
NVCCFLAGS := -m32 -dc
else
NVCCFLAGS := -m64 -dc
endif
# Debug build flags
ifeq ($(dbg),1)
CCFLAGS += -g
NVCCFLAGS += -g -G
TARGET := debug
else
TARGET := release
endif
# Common includes and paths for CUDA
INCLUDES := -I$(CUDA_INC_PATH) -I. -I.. -I../../common/inc
# Additional parameters
MAXRREGCOUNT := -po maxrregcount=16
# Target rules
all: build
build: BlackScholes
BlackScholes.o: BlackScholes.cu
$(NVCC) $(NVCCFLAGS) $(EXTRA_NVCCFLAGS) $(GENCODE_FLAGS) -rdc=true -dlink $(MAXRREGCOUNT) $(INCLUDES) -o $@ -c $<
BlackScholes_gold.o: BlackScholes_gold.cpp
$(GCC) $(CCFLAGS) $(INCLUDES) -o $@ -c $<
BlackScholes: BlackScholes.o BlackScholes_gold.o
$(GCC) $(CCFLAGS) -o $@ $+ $(LDFLAGS) $(EXTRA_LDFLAGS)
mkdir -p ../../bin/$(OSLOWER)/$(TARGET)
cp $@ ../../bin/$(OSLOWER)/$(TARGET)
enter code here
run: build
./BlackScholes
推荐答案
使用主机链接器 (g++
) 最终链接可执行文件时,以及使用可重定位设备代码 (nvcc-dc
),需要做一个中间设备代码链接步骤.
When using the host linker (g++
) for final linking of your executable, and when using relocatable device code (nvcc -dc
), it's necessary to do an intermediate device code link step.
来自文档:p>
If you want to invoke the device and host linker separately, you can do:
nvcc –arch=sm_20 –dc a.cu b.cu
nvcc –arch=sm_20 –dlink a.o b.o –o link.o
g++ a.o b.o link.o –L<path> -lcudart
由于您在编译行中指定了 -dc
,因此您将获得仅编译操作(就像您已将 -c
指定给 g++).
Since you are specifying -dc
on the compile line, you are getting a compile-only operation (just as if you had specified -c
to g++).
这是一个修改/压缩的 Makefile
,它应该向您展示所涉及的内容:
Here's a modified/condensed Makefile
that should show you what is involved:
GENCODE_SM35 := -gencode arch=compute_35,code=sm_35
GENCODE_FLAGS := $(GENCODE_SM35)
LDFLAGS := -L/usr/local/cuda/lib64 -lcudart -lcudadevrt
CCFLAGS := -m64
NVCCFLAGS := -m64 -dc
NVCC := nvcc
GCC := g++
# Debug build flags
ifeq ($(dbg),1)
CCFLAGS += -g
NVCCFLAGS += -g -G
TARGET := debug
else
TARGET := release
endif
# Common includes and paths for CUDA
INCLUDES := -I/usr/local/cuda/include -I. -I..
# Additional parameters
MAXRREGCOUNT := -po maxrregcount=16
# Target rules
all: build
build: BlackScholes
BlackScholes.o: BlackScholes.cu
$(NVCC) $(NVCCFLAGS) $(EXTRA_NVCCFLAGS) $(GENCODE_FLAGS) $(MAXRREGCOUNT) $(INCLUDES) -o $@ $<
$(NVCC) -dlink $(GENCODE_FLAGS) $(MAXRREGCOUNT) -o bs_link.o $@
BlackScholes_gold.o: BlackScholes_gold.cpp
$(GCC) $(CCFLAGS) $(INCLUDES) -o $@ -c $<
BlackScholes: BlackScholes.o BlackScholes_gold.o bs_link.o
$(GCC) $(CCFLAGS) -o $@ $+ $(LDFLAGS) $(EXTRA_LDFLAGS)
run: build
./BlackScholes
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