[petsc-dev] Should we replace hypre PILUT with hypre Euclid?

[Fande Kong]

On Tue, Jul 17, 2018 at 12:58 PM, Matthew Knepley <knepley at gmail.com> wrote:

> On Tue, Jul 17, 2018 at 2:55 PM Jed Brown <jed at jedbrown.org> wrote:
>
>> PETSc had a Euclid interface until Barry removed it.
>>
>> https://bitbucket.org/petsc/petsc/commits/22b6d1ca80e4f79123036fb6afd7eb
>> 4463b3692a
>>
>> See also
>>
>> https://www.mail-archive.com/petsc-users@mcs.anl.gov/msg33196.html
>
>
> I would also add that it is considerate of Hypre to have such a terrible
> ILUT implementation
> because it reminds you that you should never ever ever use ILUT.
>

So in theory, can we have a much better implementation? From my
understanding, algorithm itself is not suitable for parallel computation,
and it might not be a implementation problem only.

Fande,


>   Matt
>
>
>>
>> Fande Kong <fdkong.jd at gmail.com> writes:
>>
>> > Hi Developers,
>> >
>> > The hypre user manual  has this statement (page 63):
>> >
>> > "Note: this code is no longer supported by the hypre team. We recommend
>> to
>> > use Euclid instead,
>> > which is more versatile and in general more efficient, especially when
>> used
>> > with many processors."
>> >
>> >
>> > https://computation.llnl.gov/sites/default/files/public/
>> hypre-2.11.2_usr_manual.pdf
>> >
>> >
>> >
>> > It may be a good idea to upgrade PETSc interface to use Euclid instead
>> of
>> > PILUT??
>> >
>> >
>> > Fande,
>>
>
>
> --
> 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.caam.rice.edu/~mk51/>
>
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