Re: [petsc-dev] Elemental for sparse, distributed-memory, direct, quad-precision linear solves?

[Jeff Hammond]

That depends on how many people are working on it [1] ;-)

Jeff

[1] https://en.wikipedia.org/wiki/The_Mythical_Man-Month

On Tue, Aug 23, 2016 at 5:28 AM, Patrick Sanan 
wrote:

> Aha, cool! How much work do you estimate remains?
>
> On Tue, Aug 23, 2016 at 2:19 PM, Stefano Zampini
>  wrote:
> > Interface to the sparse elemental solver is almost done in
> > https://bitbucket.org/petsc/petsc/branch/stefano_zampini/
> new-elemental-interface
> >
> > I did not have time to finish it, and I’m not sure if Elemental now
> supports
> > user-defined distributions for the vectors.
> >
> >
> > On Aug 23, 2016, at 3:15 PM, Matthew Knepley  wrote:
> >
> > On Tue, Aug 23, 2016 at 3:01 AM, Patrick Sanan 
> > wrote:
> >>
> >> Can I use elemental to directly solve a sparse, distributed-memory
> >> (MPI), quad-precision linear system? If so, with the introduction of
> >> an interface, could this provide a way to support such a solve via an
> >> external package for PETSc?
> >
> >
> > I think you need Clique and I am not sure we have an interface. I would
> > check first.
> >
> >Matt
> >
> > --
> > 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
> >
> >
>



-- 
Jeff Hammond
jeff.scie...@gmail.com
http://jeffhammond.github.io/

Re: [petsc-dev] Elemental for sparse, distributed-memory, direct, quad-precision linear solves?

[Patrick Sanan]

Aha, cool! How much work do you estimate remains?

On Tue, Aug 23, 2016 at 2:19 PM, Stefano Zampini
 wrote:
> Interface to the sparse elemental solver is almost done in
> https://bitbucket.org/petsc/petsc/branch/stefano_zampini/new-elemental-interface
>
> I did not have time to finish it, and I’m not sure if Elemental now supports
> user-defined distributions for the vectors.
>
>
> On Aug 23, 2016, at 3:15 PM, Matthew Knepley  wrote:
>
> On Tue, Aug 23, 2016 at 3:01 AM, Patrick Sanan 
> wrote:
>>
>> Can I use elemental to directly solve a sparse, distributed-memory
>> (MPI), quad-precision linear system? If so, with the introduction of
>> an interface, could this provide a way to support such a solve via an
>> external package for PETSc?
>
>
> I think you need Clique and I am not sure we have an interface. I would
> check first.
>
>Matt
>
> --
> 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
>
>

Re: [petsc-dev] Elemental for sparse, distributed-memory, direct, quad-precision linear solves?

[Patrick Sanan]

It looks like Clique was merged into Elemental, so optimistically that
wouldn't be an issue.

On Tue, Aug 23, 2016 at 2:15 PM, Matthew Knepley  wrote:
> On Tue, Aug 23, 2016 at 3:01 AM, Patrick Sanan 
> wrote:
>>
>> Can I use elemental to directly solve a sparse, distributed-memory
>> (MPI), quad-precision linear system? If so, with the introduction of
>> an interface, could this provide a way to support such a solve via an
>> external package for PETSc?
>
>
> I think you need Clique and I am not sure we have an interface. I would
> check first.
>
>Matt
>
> --
> 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

Re: [petsc-dev] Elemental for sparse, distributed-memory, direct, quad-precision linear solves?

[Stefano Zampini]

Interface to the sparse elemental solver is almost done in 
https://bitbucket.org/petsc/petsc/branch/stefano_zampini/new-elemental-interface

I did not have time to finish it, and I’m not sure if Elemental now supports 
user-defined distributions for the vectors.


On Aug 23, 2016, at 3:15 PM, Matthew Knepley  wrote:

> On Tue, Aug 23, 2016 at 3:01 AM, Patrick Sanan  
> wrote:
> Can I use elemental to directly solve a sparse, distributed-memory
> (MPI), quad-precision linear system? If so, with the introduction of
> an interface, could this provide a way to support such a solve via an
> external package for PETSc?
> 
> I think you need Clique and I am not sure we have an interface. I would check 
> first.
> 
>Matt
> 
> -- 
> 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

Re: [petsc-dev] Elemental for sparse, distributed-memory, direct, quad-precision linear solves?

[Matthew Knepley]

On Tue, Aug 23, 2016 at 3:01 AM, Patrick Sanan 
wrote:

> Can I use elemental to directly solve a sparse, distributed-memory
> (MPI), quad-precision linear system? If so, with the introduction of
> an interface, could this provide a way to support such a solve via an
> external package for PETSc?
>

I think you need Clique and I am not sure we have an interface. I would
check first.

   Matt

-- 
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

[petsc-dev] Elemental for sparse, distributed-memory, direct, quad-precision linear solves?

[Patrick Sanan]

Can I use elemental to directly solve a sparse, distributed-memory
(MPI), quad-precision linear system? If so, with the introduction of
an interface, could this provide a way to support such a solve via an
external package for PETSc?