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Re: [Starpu-devel] StarPU CUDA out of memory


Chronologique Discussions 
  • From: Samuel Thibault <samuel.thibault@ens-lyon.org>
  • To: Usman Dastgeer <usman.dastgeer@liu.se>
  • Cc: starpu-devel@lists.gforge.inria.fr
  • Subject: Re: [Starpu-devel] StarPU CUDA out of memory
  • Date: Mon, 18 Feb 2013 09:54:25 +0100
  • 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>

Usman Dastgeer, le Mon 18 Feb 2013 09:44:02 +0100, a écrit :
> I am getting "out of memory" error with CUDA fermi GPU when using StarPU.

How are you getting it exactly? Which data interface are you using?

> With StarPU it seems that CUDA memory is not actually freed on
> "data_unregister"

Indeed, StarPU uses an allocation cache. But it does memory reclaiming
when it gets an out of memory error, so it's not supposed to happen.

Samuel





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