llvm dev - Aug 2017 - CUDA compilation "No available targets are compatible with this triple." problem

Hi,


I have trouble compiling CUDA code with Clang. The following is a command I
tried:

> clang++ axpy.cu -o axpy --cuda-gpu-arch=sm_35 --cuda-path=/usr/local/cuda

The error message is


error: unable to create target: 'No available targets are compatible with
this triple.'


The info of the LLVM I'm using is as follows:
> lang++ --version
clang version 6.0.0 (http://llvm.org/git/clang.git
16a0981eccf1bfcc9ba928747aa825e8948791cd) (http://llvm.org/git/llvm.git
052dd78cb30f77a05dc8bb06b851402c4b6c6587)

Target: x86_64-unknown-linux-gnu

Thread model: posix

InstalledDir: /home/xshen5/llvm/bin


  Registered Targets:

    x86    - 32-bit X86: Pentium-Pro and above

    x86-64 - 64-bit X86: EM64T and AMD64


Any help I could get? Thanks!


-Xin
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I'm assuming you are following guide at
https://llvm.org/docs/CompileCudaWithLLVM.html#compiling-cuda-code

Have you tried -L and -l flags?

Kevin

On Wed, Aug 2, 2017 at 2:23 PM, Xipeng Shen via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hi,
>
>
> I have trouble compiling CUDA code with Clang. The following is a command
> I tried:
>
>
> > clang++ axpy.cu -o axpy --cuda-gpu-arch=sm_35
> --cuda-path=/usr/local/cuda
>
>
> The error message is
>
>
> error: unable to create target: 'No available targets are compatible
with
> this triple.'
>
>
> The info of the LLVM I'm using is as follows:
>
> > lang++ --version
>
> clang version 6.0.0 (http://llvm.org/git/clang.git
> 16a0981eccf1bfcc9ba928747aa825e8948791cd) (http://llvm.org/git/llvm.git
> 052dd78cb30f77a05dc8bb06b851402c4b6c6587)
>
> Target: x86_64-unknown-linux-gnu
>
> Thread model: posix
>
> InstalledDir: /home/xshen5/llvm/bin
>
>
>   Registered Targets:
>
>     x86    - 32-bit X86: Pentium-Pro and above
>
>     x86-64 - 64-bit X86: EM64T and AMD64
>
> Any help I could get? Thanks!
>
>
> -Xin
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
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Yes, I followed the guide. The same error showed up:

>clang++ axpy.cu -o axpy --cuda-gpu-arch=sm_35 -L/usr/local/cuda/lib64
-I/usr/local/cuda/include -lcudart_static -ldl -lrt -pthread
error: unable to create target: 'No available targets are compatible with
this triple.'


________________________________
From: Kevin Choi <code.kchoi at gmail.com>
Sent: Wednesday, August 2, 2017 3:44 PM
To: Xipeng Shen
Cc: llvm-dev at lists.llvm.org
Subject: Re: [llvm-dev] CUDA compilation "No available targets are
compatible with this triple." problem

I'm assuming you are following guide at
https://llvm.org/docs/CompileCudaWithLLVM.html#compiling-cuda-code
Compiling CUDA with clang — LLVM 6
documentation<https://llvm.org/docs/CompileCudaWithLLVM.html#compiling-cuda-code>
llvm.org
Prerequisites ¶ CUDA is supported in llvm 3.9, but it’s still in active
development, so we recommend you compile clang/LLVM from HEAD. Before you build
CUDA code ...



Have you tried -L and -l flags?

Kevin

On Wed, Aug 2, 2017 at 2:23 PM, Xipeng Shen via llvm-dev <llvm-dev at
lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote:

Hi,


I have trouble compiling CUDA code with Clang. The following is a command I
tried:

> clang++ axpy.cu<http://axpy.cu> -o axpy --cuda-gpu-arch=sm_35
--cuda-path=/usr/local/cuda

The error message is


error: unable to create target: 'No available targets are compatible with
this triple.'


The info of the LLVM I'm using is as follows:
> lang++ --version
clang version 6.0.0 (http://llvm.org/git/clang.git
16a0981eccf1bfcc9ba928747aa825e8948791cd) (http://llvm.org/git/llvm.git
052dd78cb30f77a05dc8bb06b851402c4b6c6587)

Target: x86_64-unknown-linux-gnu

Thread model: posix

InstalledDir: /home/xshen5/llvm/bin


  Registered Targets:

    x86    - 32-bit X86: Pentium-Pro and above

    x86-64 - 64-bit X86: EM64T and AMD64


Any help I could get? Thanks!


-Xin

_______________________________________________
LLVM Developers mailing list
llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>
http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev


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