Re: [Starpu-devel] hwloc CUDA plugin missing

[Alfredo Buttari <alfredo.buttari@enseeiht.fr>]

Thanks for the info Brice!

digging into starpu I found that starpu_config.topology.workers_bindid[i] and _starpu_config.workers[i].bindid are not consistent; is this normal?

I did this adding the following lines at the very beginning of the _starpu_build_tree routine:

        for (i = 0; i < starpu_worker_get_count(); i++)

          printf(">>> %2d  %2d  %2d\n",i,_starpu_config.topology.workers_bindid[i], _starpu_config.workers[i].bindid);

On Mon, Feb 11, 2019 at 10:21 AM Brice Goglin <Brice.Goglin@inria.fr> wrote:

Le 11/02/2019 à 10:16, Alfredo Buttari a écrit :
> I do not know if there is an easy way to figure out whether a GPU is
> closer to another GPU or to another core. As far as I understand this
> information (essentially the existence of an nvlink interconnect
> between GPUs) is not provided by hwloc.


Right, we're working on it but it's not available yet.

Brice

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Alfredo Buttari, PhD
CNRS-IRIT
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