macos – CUDA 5.0,CMake并在OSX 10.8.3上失败

发布时间：2020-12-16 07:04:12 所属栏目：百科来源：网络整理

导读：我尝试在Mac OSX 10.8.3上使用CMake编译一个简单的CUDA“Hello World”. 打电话给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.

我尝试在Mac OSX 10.8.3上使用CMake编译一个简单的CUDA“Hello World”.

打电话给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

我搜索了显示的错误但找不到足够的答案.
尽管cmake成功了,但任何想法都会失败.

谢谢你的帮助.

解决方法

XCode中的默认C编译器在OS X Lion中更改为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,调整gcc的路径.

（编辑：李大同）

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