[CMake] FindCUDA fails to find libcuda.so
Marcel Loose
loose at astron.nl
Wed May 1 11:09:10 EDT 2013
Hi Robert,
I created an issue for this in Mantis:
http://public.kitware.com/Bug/view.php?id=14122
Best regards,
Marcel Loose.
On 01/05/13 15:09, Robert Maynard wrote:
> It looks like you used the ubuntu cuda package which installs the cuda
> library to a directory that FindCUDA wasn't expecting. I think we can
> extend FindCUDA to also use x86_64-linux-gnu as a valid directory to
> search for libcuda.
>
> can you submit a bug on mantis for this, so it doesn't get forgotten?
>
> On Tue, Apr 30, 2013 at 4:37 PM, Marcel Loose <marcel.loose at zonnet.nl> wrote:
>> Here are the results on my Ubuntu 12.10 system:
>>
>> $ cmake --debug-output ..
>> Running with debug output on.
>> -- The C compiler identification is GNU 4.7.2
>> Called from: [2]
>> /usr/share/cmake-2.8/Modules/CMakeDetermineCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- The CXX compiler identification is GNU 4.7.2
>> Called from: [2]
>> /usr/share/cmake-2.8/Modules/CMakeDetermineCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working C compiler: /usr/bin/gcc
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working C compiler: /usr/bin/gcc -- works
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting C compiler ABI info
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting C compiler ABI info - done
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working CXX compiler: /usr/bin/c++
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working CXX compiler: /usr/bin/c++ -- works
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting CXX compiler ABI info
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting CXX compiler ABI info - done
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- Found CUDA: /usr (found version "4.2")
>> Called from: [2] /usr/share/cmake-2.8/Modules/FindCUDA.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- CUDA_LIBRARIES = /usr/lib/x86_64-linux-gnu/libcudart.so
>> Called from: [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- Configuring done
>> -- Generating /home/marcel/temp/cmake/cuda/build
>> -- Generating done
>> -- Build files have been written to: /home/marcel/temp/cmake/cuda/build
>>
>> And here's the output when setting CUDA_LIB_PATH:
>>
>> $ CUDA_LIB_PATH=/usr/lib/nvidia-current cmake --debug-output ..
>> Running with debug output on.
>> -- The C compiler identification is GNU 4.7.2
>> Called from: [2]
>> /usr/share/cmake-2.8/Modules/CMakeDetermineCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- The CXX compiler identification is GNU 4.7.2
>> Called from: [2]
>> /usr/share/cmake-2.8/Modules/CMakeDetermineCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working C compiler: /usr/bin/gcc
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working C compiler: /usr/bin/gcc -- works
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting C compiler ABI info
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting C compiler ABI info - done
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working CXX compiler: /usr/bin/c++
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Check for working CXX compiler: /usr/bin/c++ -- works
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting CXX compiler ABI info
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>>
>> -- Detecting CXX compiler ABI info - done
>> Called from: [2] /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- Found CUDA: /usr (found version "4.2")
>> Called from: [2] /usr/share/cmake-2.8/Modules/FindCUDA.cmake
>> [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- CUDA_LIBRARIES =
>> /usr/lib/x86_64-linux-gnu/libcudart.so;/usr/lib/nvidia-current/libcuda.so
>> Called from: [1] /home/marcel/temp/cmake/cuda/CMakeLists.txt
>> -- Configuring done
>> -- Generating /home/marcel/temp/cmake/cuda/build
>> -- Generating done
>> -- Build files have been written to: /home/marcel/temp/cmake/cuda/build
>>
>> Best regards,
>> Marcel Loose.
>>
>> Op 29-04-13 18:04, Robert Maynard schreef:
>>
>>> I have had no problem with Ubuntu 12.10 and Cuda 5; findCuda is able
>>> to find cuda in /usr/lib. Can you run CMake --debug-output output
>>> enable and see where findCuda is searching?
>>>
>>> On Mon, Apr 29, 2013 at 11:52 AM, Marcel Loose <loose at astron.nl> wrote:
>>>> Hi Robert,
>>>>
>>>> I agree that on the CentOS machine the install paths are non-standard.
>>>> For
>>>> the Ubuntu system, on the other hand, I have to disagree with that
>>>> statement. It is a *standard* Ubuntu 12.10 system, so IMHO FindCUDA.cmake
>>>> should be able to locate libcuda.so on that system.
>>>>
>>>> Regards,
>>>> Marcel Loose.
>>>>
>>>>
>>>> On 29/04/13 16:54, Robert Maynard wrote:
>>>>> You have a nonstandard install path that will require you to use
>>>>> CUDA_PATH / CUDA_BIN_PATH and CUDA_LIB_PATH.
>>>>>
>>>>> On Mon, Apr 29, 2013 at 10:10 AM, Marcel Loose <loose at astron.nl> wrote:
>>>>>> Hi,
>>>>>>
>>>>>> It fails to find CUDA 5.0. See below.
>>>>>>
>>>>>> $ env | grep CUDA
>>>>>> CUDA_PATH=/cm/shared/apps/cuda50/toolkit/5.0.35
>>>>>> CUDA_INC_PATH=/cm/shared/apps/cuda50/toolkit/5.0.35
>>>>>> CUDA_SDK=/cm/shared/apps/cuda50/sdk/5.0.35
>>>>>> CUDA_CACHE_DISABLE=1
>>>>>> CUDA_INSTALL_PATH=/cm/shared/apps/cuda50/toolkit/5.0.35
>>>>>> CUDA_ROOT=/cm/local/apps/cuda50/libs/304.54
>>>>>>
>>>>>> $ cat ../CMakeLists.txt
>>>>>> cmake_minimum_required(VERSION 2.8)
>>>>>> project(CheckCUDALibs)
>>>>>> find_package(CUDA)
>>>>>> message(STATUS "CUDA_LIBRARIES = ${CUDA_LIBRARIES}")
>>>>>>
>>>>>> $ cmake ..
>>>>>> -- The C compiler identification is GNU
>>>>>> -- The CXX compiler identification is GNU
>>>>>> -- Check for working C compiler: /usr/bin/gcc
>>>>>> -- Check for working C compiler: /usr/bin/gcc -- 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: /cm/shared/apps/cuda50/toolkit/5.0.35 (found version
>>>>>> "5.0")
>>>>>> -- CUDA_LIBRARIES =
>>>>>> /cm/shared/apps/cuda50/toolkit/5.0.35/lib64/libcudart.so
>>>>>> -- Configuring done
>>>>>> -- Generating done
>>>>>> -- Build files have been written to: /home/loose/temp/cmake/cuda/build
>>>>>>
>>>>>> $ CUDA_LIB_PATH=$CUDA_ROOT/lib cmake ..
>>>>>> -- CUDA_LIBRARIES =
>>>>>>
>>>>>>
>>>>>> /cm/shared/apps/cuda50/toolkit/5.0.35/lib64/libcudart.so;/cm/local/apps/cuda50/libs/304.54/lib64/libcuda.so
>>>>>> -- Configuring done
>>>>>> -- Generating done
>>>>>> -- Build files have been written to: /home/loose/temp/cmake/cuda/build
>>>>>>
>>>>>> Only when explicitly setting CUDA_LIB_PATH, libcuda.so is found.
>>>>>>
>>>>>> BTW: On Ubuntu I also need to set CUDA_LIB_PATH, but then to
>>>>>> /usr/lib/nvidia-current.
>>>>>>
>>>>>> Regards,
>>>>>> Marcel Loose.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 29/04/13 15:36, Robert Maynard wrote:
>>>>>>> Can you provide what Cuda version FindCuda is failing to find, and
>>>>>>> where Cluster Manager is installing the CUDA toolkit and library?
>>>>>>>
>>>>>>> On Mon, Apr 29, 2013 at 7:38 AM, Marcel Loose <loose at astron.nl> wrote:
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> I noticed that FindCUDA.cmake fails to locate libcuda.so on at least
>>>>>>>> two
>>>>>>>> different platforms: Ubuntu 12.10 and CentOS 6.3 using Cluster
>>>>>>>> Manager
>>>>>>>> v5.2.
>>>>>>>> I can persuade FindCUDA.cmake to search for this library by
>>>>>>>> explicitly
>>>>>>>> setting the environment variable CUDA_LIB_PATH, and then it finds it.
>>>>>>>> However, IMHO, using this trick should only be necessary as a last
>>>>>>>> resort.
>>>>>>>> Is this a bug?
>>>>>>>>
>>>>>>>> Best regards,
>>>>>>>> Marcel Loose.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>>
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>>>>>>>>
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>>>>>>>>
>>>>>>>> Please keep messages on-topic and check the CMake FAQ at:
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>>>>>>>>
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>>>>>>
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