[petsc-users] hypre / hip usage

[Jed Brown]

Mark Adams <mfadams at lbl.gov> writes:

> Two questions about hypre on HIP:
>
> * I am doing this now. Is this correct?
>
>     '--download-hypre',
>     '--download-hypre-configure-arguments=--enable-unified-memory',
>     '--with-hypre-gpuarch=gfx90a',

I's recommended to use --with-hip-arch=gfx90a, which forwards to Hypre.

> * -mat_type hypre fails, so I am not using a -mat_type now.
> Just -vec_type hip.
> Hypre does seem to be running on the GPU from looking at scaling data and
> comparing it to GAMG.
> Is there a way to tell from log_view data that hypre is running on the GPU?

Is it clear from data transfer within PCApply?

I think it should (but might not currently) say in -ksp_view output.