[petsc-users] Composite preconditioners in petsc4py

[Matthew Knepley]

On Tue, Jan 31, 2023 at 8:44 AM Adolfo Rodriguez <adantra at gmail.com> wrote:

> Matthew,
>
> Yes, exactly: PCCOMPOSITR.
>

The list of options for it is here:
https://petsc.org/main/docs/manualpages/PC/PCCOMPOSITE/

Is there a particular thing you want to do?

  Thanks,

    Matt


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> ------------------------------
> *From:* Matthew Knepley <knepley at gmail.com>
> *Sent:* Tuesday, January 31, 2023 6:55:29 AM
> *To:* Adolfo Rodriguez <adantra at gmail.com>
> *Cc:* petsc-users <petsc-users at mcs.anl.gov>
> *Subject:* Re: [petsc-users] Composite preconditioners in petsc4py
>
> On Mon, Jan 30, 2023 at 6:56 PM Adolfo Rodriguez <adantra at gmail.com>
> wrote:
>
> Hi,
>
> how do you use composite preconditioners in petsc4py. I used to have a
> script that worked but it does not work anymore. Something has changed. Any
> simple examples?
>
>
> Do you mean using PCCOMPOSITE?
>
>   Thanks,
>
>      Matt
>
>
> Regards,
>
> Adolfo
>
>
>
> --
> 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/>
>


-- 
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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