[petsc-dev] Preconditioners for GPU

[Matthew Knepley]

On Sun, May 5, 2013 at 2:48 PM, Andrea Lani <andrea.lani at gmail.com> wrote:

> Dear Developers,
>
> Could you please tell me the list of preconditioners for non-symmetric
> systems fully ported to multi-GPU and available in the current development
> version?
>

In my opinion, there are no truly multi-GPU preconditioners anywhere. We
can imagine them, like AMG with Chebychev smoothers, but
I have not really seen any of them reliably work. The CUSP SA-AMG is the
closest one in this category, and Steve Dalton is working on
it this summer at ANL.

  Matt


> Thanks in advance
>
> Andrea




-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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