[petsc-users] MatCreateSeqAIJWithArrays for GPU / cusparse

[Junchao Zhang]

On Thu, Jan 5, 2023 at 2:42 PM Jed Brown <jed at jedbrown.org> wrote:

> Mark Adams <mfadams at lbl.gov> writes:
>
> > Support of HIP and CUDA hardware together would be crazy,
>
> I don't think it's remotely crazy. libCEED supports both together and it's
> very convenient when testing on a development machine that has one of each
> brand GPU and simplifies binary distribution for us and every package that
> uses us. Every day I wish PETSc could build with both simultaneously, but
> everyone tells me it's silly.
>

So an executable supports both GPUs,  but a running instance supports one
or both at the same time?
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