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Re: [Starpu-devel] Problem with CUDA 4.0


Chronologique Discussions 
  • From: Samuel Thibault <samuel.thibault@ens-lyon.org>
  • To: Lu Li <luli757@student.liu.se>
  • Cc: starpu-devel@lists.gforge.inria.fr
  • Subject: Re: [Starpu-devel] Problem with CUDA 4.0
  • Date: Thu, 11 Aug 2011 00:47:04 +0200
  • List-archive: <http://lists.gforge.inria.fr/pipermail/starpu-devel>
  • List-id: "Developers list. For discussion of new features, code changes, etc." <starpu-devel.lists.gforge.inria.fr>

Lu Li, le Wed 10 Aug 2011 09:20:00 +0200, a écrit :
> I upgrade cuda to 4.0. then previously well-tested examples execute
> with run-time error: "main: datawizard/copy_driver.c:116:
> copy_data_1_to_1_generic: Assertion `cures == cudaSuccess' failed."
>
> Anyone have ideas how to solve this problem?

Is this perhaps a NUMA machine?

As a workaround, you can set HAVE_CUDA_MEMCPY_PEER to 0 in
./src/common/config.h *after* ./configure, but you will lose GPU-GPU
direct transfers capability.

Samuel





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