[Users] scaling test for the einstein toolkit

[helvi witek]

Hi Ian, Carlos,

thanks a lot for your feedback.
Together with Miguel Zilhao we are planning to perform these scaling tests
using the Einstein Toolkit together with the McLachlan and/or our own
evolution thorns on the Cosmos cluster at the University of Cambridge.
If you are interested, we would be happy to make the results available to
the community and to the public, e.g., on the wiki.

We were thinking about evolving a head-on collision of two black holes to
avoid contamination by the initial data construction. We would restrict the
output to "carpet-timing..asc" and "AllTimers*". Would you recommend any
other output to monitor the performance during these tests?
Please let us know if you have any other comments.

Best wishes,
Helvi & Miguel

===========================================
Dr. Helvi Witek
Marie-Curie Research Fellow
Dep. Fisica Quantica i Astrofisica & ICCUB
Universitat de Barcelona
===========================================

On Wed, May 10, 2017 at 4:40 PM, Carlos Lousto <colsma at rit.edu> wrote:

> Agreed, but the available machines in Xsede change every 3 years or so. It
> would be nice if we had a way to update/add to such "live" paper with a
> supplementary repo(?)
>
> Carlos Lousto
>
> On May 10, 2017, at 10:29 AM, Ian Hinder <ian.hinder at aei.mpg.de> wrote:
>
>
> On 10 May 2017, at 15:31, helvi witek <hwitek at icc.ub.edu> wrote:
>
> Hi everyone,
>
> we are going to apply for HPC time using the Lean code which is largely
> based on the Einstein Toolkit. Among the required technical information are
> scaling tests. While we will perform our own tests I also checked for
> "official" information for the ET. I noticed that there is very little
> public information, e.g. on the wiki, about recent (say, within the last
> five years) scaling tests aside from Eloisa's recent paper
> http://inspirehep.net/record/1492289
> and this tracker
> http://lists.einsteintoolkit.org/pipermail/users/2013-February/002815.html
>
> Did I miss anything? It might be a good idea to add a standardized test or
> references to the wiki page.
>
>
> It would probably be very useful for many groups if we were to write a
> short paper describing the scaling of the ET in various cases on current
> HPC machines.  For someone running simulations very similar to those used,
> referring to such a paper may be sufficient to demonstrate scaling of the
> code for a proposal.  If the code used was quite different, then if the
> parameter files and any required scripts from such a paper were made
> public, it would be easier for each group to adapt them to their own code.
>
> --
> Ian Hinder
> http://members.aei.mpg.de/ianhin
>
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