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[Starpu-devel] Concurrent CUDA kernel execution


Chronologique Discussions 
  • From: Samuel Thibault <samuel.thibault@ens-lyon.org>
  • To: starpu-devel@lists.gforge.inria.fr
  • Subject: [Starpu-devel] Concurrent CUDA kernel execution
  • Date: Fri, 4 Apr 2014 18:08:14 +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,

FYI, I have added initial support for concurrent CUDA kernel execution
to the trunk. This is controlled through the STARPU_NWORKER_PER_CUDA
environment variable. I do get real parallel execution on Kepler
indeed. Fermi however brings too much synchronization. FxT traces are
and documentation are not fixed yet, but people can already give it a
try by just setting STARPU_NWORKER_PER_CUDA to 2 or more.

Samuel





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