[petsc-users] chowiluviennacl

[Matthew Knepley]

On Tue, Jan 14, 2020 at 9:56 PM Xiangdong <epscodes at gmail.com> wrote:

> Dear Developers,
>
> I have a quick question about the chowiluviennacl. When I tried to use it,
> I found that it only works for np=1, not np>1. However, in the description
> of chowiluviennacl.cxx, it says "the ViennaCL Chow-Patel parallel ILU
> preconditioner".
>

By parallel, this means shared memory parallelism on the GPU.


> I am wondering whether I am using it correctly. Does chowiluviennacl work
> for np>1?
>

I do not believe so. I do not see why it could not be extended, but that
would mean writing some more code.

  Thanks,

    Matt


> In addition, are there option keys for the chowiluviennacl one can try?
> Thank you.
>
> Best,
> Xiangdong
>


-- 
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

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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