[petsc-dev] A closer look at the Xeon Phi

[Jed Brown]

On Tue, Feb 12, 2013 at 7:43 PM, Karl Rupp <rupp at mcs.anl.gov> wrote:

> Tim was referring to the cross-over at >10k...
>

Okay, but 10k is more than an order of magnitude away from a crossover with
MIC.


> Almost-all (OpenCL, CUDA). Native mode ought to be the exception, but it's
> the OpenMP overhead which limits then. Single-core on the MIC is not really
> an option either...
>
> It would be interesting to play with a pthreads-threadpool implementation
> on the MIC to see how much performance can really be obtained for smallish
> problems.
>

Yup, I'd like to experiment with this. Do you have a device on a convenient
development machine?
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