[petsc-users] SUPERLU_DIST in single precision

[Xiaoye S. Li]

Barry,

I have a branch 'Mixed-precision' working with single precision FP32. I
assume Felix wants to use superlu_dist from petsc.  How do you want to
incorporate it in petsc?

https://github.com/xiaoyeli/superlu_dist

PS1:  in this version, FP32 only works on CPU.  FP64 and complex-FP64 all
work on GPU.

PS2: currently there is no mixed-precision yet, but it is the branch we are
adding mix-prec support.  Will take a while before merging to master.

Sherry


On Wed, Jul 22, 2020 at 6:04 AM <flw at rzg.mpg.de> wrote:

> Hi Barry,
> for now I just want to run everything in single on CPUs only with
> SUPERLU_DIST. Maybe we will also incorporate GPUs in the future, but
> there are no immediate plans yet. So if you could provide the support,
> that would be awesome.
>
> Best regards,
> Felix
>
> Zitat von Barry Smith <bsmith at petsc.dev>:
>
> > Felix,
> >
> >     What are your needs, do you want this for CPUs or for GPUs?  Do
> > you wish to run all your code in single precision or just the
> > SuperLU_Dist solver while the rest of your code double?
> >
> >     If you want to run everything on CPUs using single precision
> > then adding the support is very easy, we can provide that for you
> > any time. The other cases will require more thought.
> >
> >     Barry
> >
> >
> >> On Jul 21, 2020, at 8:58 AM, flw at rzg.mpg.de wrote:
> >>
> >> Dear PETSc support team,
> >> some time ago you told me that you are planning on releasing a
> >> version that supports SUPERLU_DIST in single-precision soon. Can
> >> you tell me roughly what time frame you had in mind?
> >>
> >> Best regards,
> >> Felix
> >>
>
>
>
>
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