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Re: [Starpu-devel] Issue with lws


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  • From: Samuel Thibault <samuel.thibault@inria.fr>
  • To: Mathieu Faverge <mathieu.faverge@inria.fr>
  • Cc: starpu-devel@lists.gforge.inria.fr
  • Subject: Re: [Starpu-devel] Issue with lws
  • Date: Thu, 20 Sep 2018 16:38:48 +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>
  • Organization: I am not organized
Mathieu Faverge, le jeu. 20 sept. 2018 16:17:28 +0200, a ecrit:
> Not sure it's only  StarPU, butpause/resume doesn't change that.
> However:
>    StarPU initialization time 9.064140e+00 s

Ouch!

> It looks like the topology initialization takes way too much time.

Indeed, there is no reason it should be so long, we only see long times
when there are dozens of GPUs and CUDA is so slow. On jolly with 64
cores we get like 0.2s initialization time. On which machine is this?

Samuel


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