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Re: [Starpu-devel] StarPU 1.2.0rc2, FAIL: datawizard/manual_reduction


Chronologique Discussions 
  • From: Samuel Thibault <samuel.thibault@inria.fr>
  • To: Guowei HE <g.he@fz-juelich.de>
  • Cc: starpu-devel@lists.gforge.inria.fr
  • Subject: Re: [Starpu-devel] StarPU 1.2.0rc2, FAIL: datawizard/manual_reduction
  • Date: Mon, 11 May 2015 12:58:23 +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>

Hello,

Thanks for the report.

Guowei HE, le Mon 11 May 2015 11:29:20 +0200, a écrit :
> FAIL: datawizard/manual_reduction
> =================================
>
> [starpu][initialize_eager_center_policy] Warning: you are running the
> default eager scheduler, which is not very smart. Make sure to read the
> StarPU documentation about adding performance models in order to be able to
> use the dmda or dmdas scheduler instead.
> 5041 = 42 + 4999
> 10041 = 5041 + 5000

It should have been 10042. So one task didn't manage to contribute to
the reduction, that's odd. Does it happen all the time when running
tests/datawizard/manual_reduction by hand? Which configuration do you
have? (number of GPUs, CPUs, etc.)

Samuel




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