llvm dev - Feb 2018 - use clang++ to build lulesh 2.0 failed

Hello,

I'm trying to use clang++ instead of nvcc to build lulesh 2.0 cuda version.
And it fails in the compilation with errors like the one below:

opt/common/cuda/cuda-7.5.18/include/thrust/iterator/iterator_adaptor.h:187:5:
error: expected member name or ';' after declaration specifiers
    __thrust_exec_check_disable__

​It looks like clang++ is complaining about the thrust library comes with
cuda, while nvcc works fine for this case. So does it mean clang++ does not
support compiling this benchmark (even though it's cuda 7.5)? Or how should
I tackle these errors?

Thanks a lot!​

-- 
Best regards


Hui Zhang
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> ​It looks like clang++ is complaining about the thrust library comes with
cuda,

The Thrust library that comes with CUDA is indeed not compatible with
clang.  We made a number of changes to Thrust to make it work with clang
(it was relying on what we considered to be bugs in nvcc), but they're only
available in the upstream Thrust: https://github.com/thrust/thrust.

No promises that one builds with Clang either, but at least it should.

On Tue, Feb 20, 2018 at 1:24 PM Hui Zhang via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hello,
>
> I'm trying to use clang++ instead of nvcc to build lulesh 2.0 cuda
> version. And it fails in the compilation with errors like the one below:
>
>
opt/common/cuda/cuda-7.5.18/include/thrust/iterator/iterator_adaptor.h:187:5:
> error: expected member name or ';' after declaration specifiers
>     __thrust_exec_check_disable__
>
> ​It looks like clang++ is complaining about the thrust library comes with
> cuda, while nvcc works fine for this case. So does it mean clang++ does not
> support compiling this benchmark (even though it's cuda 7.5)? Or how
should
> I tackle these errors?
>
> Thanks a lot!​
>
> --
> Best regards
>
>
> Hui Zhang
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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Thanks, Justin. I'll give it a try.

On Tue, Feb 20, 2018 at 4:44 PM, Justin Lebar <jlebar at google.com>
wrote:
> > ​It looks like clang++ is complaining about the thrust library comes
> with cuda,
>
> The Thrust library that comes with CUDA is indeed not compatible with
> clang.  We made a number of changes to Thrust to make it work with clang
> (it was relying on what we considered to be bugs in nvcc), but they're
only
> available in the upstream Thrust: https://github.com/thrust/thrust.
>
> No promises that one builds with Clang either, but at least it should.
>
> On Tue, Feb 20, 2018 at 1:24 PM Hui Zhang via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Hello,
>>
>> I'm trying to use clang++ instead of nvcc to build lulesh 2.0 cuda
>> version. And it fails in the compilation with errors like the one
below:
>>
>>
opt/common/cuda/cuda-7.5.18/include/thrust/iterator/iterator_adaptor.h:187:5:
>> error: expected member name or ';' after declaration specifiers
>>     __thrust_exec_check_disable__
>>
>> ​It looks like clang++ is complaining about the thrust library comes
with
>> cuda, while nvcc works fine for this case. So does it mean clang++ does
not
>> support compiling this benchmark (even though it's cuda 7.5)? Or
how should
>> I tackle these errors?
>>
>> Thanks a lot!​
>>
>> --
>> Best regards
>>
>>
>> Hui Zhang
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>

-- 
Best regards


Hui Zhang
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