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

Xipeng Shen via llvm-dev
2017-08-02T20:12:33Z

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

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