[petsc-dev] hypre and CUDA

[Mark Adams]

Thanks Karl,

>From what Barry said, the hypre configure has not done the CUDA stuff so it
can't work right now.

Mark

On Thu, Aug 15, 2019 at 8:57 PM Karl Rupp <rupp at iue.tuwien.ac.at> wrote:

> Hi,
>
> one way to test is to run a sequential example through nv-prof:
>   $> nvprof ./ex56 ...
>
>
> https://devblogs.nvidia.com/cuda-pro-tip-nvprof-your-handy-universal-gpu-profiler/
>
> If it uses the GPU, then you will get some information on the GPU
> kernels called. If it doesn't use the GPU, the list will be (almost) empty.
>
> Best regards,
> Karli
>
>
>
> On 8/15/19 5:47 PM, Mark Adams via petsc-dev wrote:
> > I have configured with Hypre on SUMMIT, with cuda, and it ran. I'm now
> > trying to verify that it used GPUs (I doubt it). Any ideas on how to
> > verify this? Should I use the cuda vecs and mats, or does Hypre not
> > care. Can I tell hypre not to use GPUs other than configuring an
> > non-cude PETSc? I'm not sure how to run a job without GPUs, but I will
> > look into it.
> >
> > Mark
>
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