我尝试在MacOSX10.8.3上使用CMake编译一个简单的CUDA "Hello World“。
调用cmake .似乎成功了。这是我的CMakeList.txt
project(HelloWorld)
cmake_minimum_required(VERSION 2.8)
FIND_PACKAGE(CUDA)
CUDA_INCLUDE_DIRECTORIES(/Developer/NVIDIA/CUDA-5.0/samples/common/inc)
CUDA_ADD_EXECUTABLE(helloWorld helloWorld.cu)..。和输出:
-- The C compiler identification is Clang 4.2.0
-- The CXX compiler identification is Clang 4.2.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found CUDA: /Developer/NVIDIA/CUDA-5.0 (found version "5.0")
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/mennny/Documents/UNI/6_Semester/0_PMPP/1_exercises/cuda-hello-world但之后调用make失败,并出现以下错误:
[100%] Building NVCC (Device) object CMakeFiles/helloWorld.dir//./helloWorld_generated_helloWorld.cu.o
clang: error: unsupported option '-dumpspecs'
clang: error: no input files
CMake Error at helloWorld_generated_helloWorld.cu.o.cmake:206 (message): Error generating /Users/mennny/Documents/UNI/6_Semester/0_PMPP/1_exercises/cuda-hello-world/CMakeFiles/helloWorld.dir//./helloWorld_generated_helloWorld.cu.o
make[2]: *** [CMakeFiles/helloWorld.dir/./helloWorld_generated_helloWorld.cu.o] Error 1
make[1]: *** [CMakeFiles/helloWorld.dir/all] Error 2
make: *** [all] Error 2我用谷歌搜索了显示的错误,但找不到任何足够的答案。尽管cmake成功了,但是为什么make失败了呢?
谢谢你的帮助。
发布于 2013-04-30 07:13:28
在OS X Lion中,XCode中的默认C编译器更改为CLang。CLang与nvcc不兼容,因此您需要更改nvcc用于非cuda(主机)代码的编译器。将以下内容添加到您的CMakeList.txt中将起作用:
if (NOT DEFINED CUDA_HOST_COMPILER AND CMAKE_C_COMPILER_ID STREQUAL "Clang" AND EXISTS /usr/bin/gcc)
set(CUDA_HOST_COMPILER /usr/bin/gcc CACHE FILEPATH "Host side compiler used by NVCC")
message(STATUS "Setting CMAKE_HOST_COMPILER to /usr/bin/gcc instead of ${CMAKE_C_COMPILER}.")
endif()如有必要,请将路径调整为gcc。
发布于 2013-07-10 17:53:14
如果您不想更改您的CMakeLists.txt,那么将环境变量CXX设置为" GCC“就可以了(假设在/usr/bin之前的path中没有其他的GCC)。
CMake会自动拾取它。
https://stackoverflow.com/questions/16286588
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