[Users] Einstein Toolkit Meeting Reminder

[Bruno Giacomazzo]

Erik,
  thanks. Do you have any instructions (or simfactory files) to share if I
wanted to try compiling and running it on GPUs?
I have access to a GPU cluster at CINECA in Italy and I may try running
there (each node has 4 x NVIDIA Volta V100 GPUs). The theory group here in
Bicocca is also going to buy a server with 4 x NVIDIA A100 GPUs for testing
purposes.

I do not have experience with GPUs, but I'm happy to help if needed.

Cheers,
Bruno



Il giorno gio 3 giu 2021 alle ore 15:38 Erik Schnetter <
schnetter at cct.lsu.edu> ha scritto:

> Bruno
>
> GPUs are supported and are working fine. A WaveToy is working, but I
> haven't tested it in the past weeks. The Einstein equations require
> more work to be efficient on GPUs.
>
> -erik
>
> On Thu, Jun 3, 2021 at 9:29 AM Bruno Giacomazzo
> <bruno.giacomazzo at unimib.it> wrote:
> >
> > Roland and Erik,
> >   thanks a lot for the explanation. I saw the release notes with CUDA
> listed in the larger changes and this is why I asked.
> >
> > Erik, does CarpetX already support GPU via AMReX or is more work needed?
> >
> > Thanks,
> > Bruno
> >
> >
> > Il giorno gio 3 giu 2021 alle ore 14:35 Erik Schnetter <
> schnetter at cct.lsu.edu> ha scritto:
> >>
> >> To my knowledge, the improved support means that it is now possible to
> >> mix CUDA and C++ code in the same source files. That is, you can
> >> compile C++ code with a CUDA compiler, which will pass on the C++ bits
> >> to the regular C++ compiler while extracting the CUDA code. This is
> >> merely a technical improvement of the make system that makes it easier
> >> to write one version code that can run on both a CPU or a GPU, instead
> >> of having to write two separate versions of the code.
> >>
> >> The real CUDA-related work happened in CarpetX
> >> <https://bitbucket.org/eschnett/cactusamrex/>, which is not part of
> >> the Einstein Toolkit yet. But we're getting there!
> >>
> >> -erik
> >>
> >> On Thu, Jun 3, 2021 at 3:40 AM Bruno Giacomazzo
> >> <bruno.giacomazzo at unimib.it> wrote:
> >> >
> >> > would it be possible to have a (short) summary of the CUDA support
> introduced in the latest release?
> >> >
> >> > Thanks,
> >> > Bruno
> >> >
> >> > Il giorno gio 3 giu 2021 alle ore 00:15 <users at einsteintoolkit.org>
> ha scritto:
> >> >>
> >> >> Hello,
> >> >>
> >> >> Please consider joining the weekly Einstein Toolkit phone call at
> >> >> 9:00 am US central time on Thursdays. For details on how to connect
> >> >> and what agenda items are to be discussed, use the link below.
> >> >>
> >> >> https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call
> >> >>
> >> >> --The Maintainers
> >> >> _______________________________________________
> >> >> Users mailing list
> >> >> Users at einsteintoolkit.org
> >> >> http://lists.einsteintoolkit.org/mailman/listinfo/users
> >> >
> >> >
> >> >
> >> > --
> >> >
> >> > Prof. Bruno Giacomazzo
> >> > Department of Physics
> >> > University of Milano-Bicocca
> >> > Piazza della Scienza 3
> >> > 20126 Milano
> >> > Italy
> >> >
> >> > email: bruno.giacomazzo at unimib.it
> >> > phone: (+39) 02 6448 2321
> >> > web: http://www.brunogiacomazzo.org
> >> >
> >> > ----------------------------------------------------------------------
> >> > There are only 10 types of people in the world:
> >> > Those who understand binary, and those who don't
> >> > ----------------------------------------------------------------------
> >> >
> >> > _______________________________________________
> >> > Users mailing list
> >> > Users at einsteintoolkit.org
> >> > http://lists.einsteintoolkit.org/mailman/listinfo/users
> >>
> >>
> >>
> >> --
> >> Erik Schnetter <schnetter at cct.lsu.edu>
> >> http://www.perimeterinstitute.ca/personal/eschnetter/
> >
> >
> >
> > --
> >
> > Prof. Bruno Giacomazzo
> > Department of Physics
> > University of Milano-Bicocca
> > Piazza della Scienza 3
> > 20126 Milano
> > Italy
> >
> > email: bruno.giacomazzo at unimib.it
> > phone: (+39) 02 6448 2321
> > web: http://www.brunogiacomazzo.org
> >
> > ----------------------------------------------------------------------
> > There are only 10 types of people in the world:
> > Those who understand binary, and those who don't
> > ----------------------------------------------------------------------
> >
> > _______________________________________________
> > Users mailing list
> > Users at einsteintoolkit.org
> > http://lists.einsteintoolkit.org/mailman/listinfo/users
>
>
>
> --
> Erik Schnetter <schnetter at cct.lsu.edu>
> http://www.perimeterinstitute.ca/personal/eschnetter/
>


-- 

Prof. Bruno Giacomazzo
Department of Physics
University of Milano-Bicocca
Piazza della Scienza 3
20126 Milano
Italy

email: bruno.giacomazzo at unimib.it
phone: (+39) 02 6448 2321
web: http://www.brunogiacomazzo.org

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There are only 10 types of people in the world:
Those who understand binary, and those who don't
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