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Re: [Starpu-devel] Using STARPU_COMMUTE with starpu_mpi_task_build()


Chronologique Discussions 
  • From: Samuel Thibault <samuel.thibault@ens-lyon.org>
  • To: Xavier Lacoste <xl64100@gmail.com>
  • Cc: starpu-devel@lists.gforge.inria.fr
  • Subject: Re: [Starpu-devel] Using STARPU_COMMUTE with starpu_mpi_task_build()
  • Date: Wed, 26 Feb 2014 10:30:55 -0500
  • 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>

Xavier Lacoste, le Wed 26 Feb 2014 15:43:26 +0100, a écrit :
> I tried to use STARPU_COMMUTE with MPI but the option gives an error when
> building MPI task.
> Indeed it does not appear in the test "if (arg_type==STARPU_R ||
> arg_type==STARPU_W || arg_type==STARPU_RW || arg_type==STARPU_SCRATCH ||
> arg_type==STARPU_REDUX" in starpu_mpi_task_insert.c
> Is this the only thing missing or is it more complicated ?

On the top of my head I think it's a matter of testing against
arg_type & ~STARPU_COMMUTE to get it working at least. Getting it
optimized is probably another question, could you show us your use case?

Samuel





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