[Users] meeting minutes

[Roland Haas]

Present were: Erik, Peter, Roland, Frank, Steve, Ian, Christian Ott,
ELoisa, Yosef, Bruno, Tanja

ET fall workshop:
* dates are now fixes to week of Oct 22nd, from Mo (22nd) at noon to Fri
(26th) at noon
* hotel information available on the wiki page
https://docs.einsteintoolkit.org/et-docs/ET_Workshop_Fall_2012
* physics topics:
  - MHD related: vector potential, resistive MHD, force-free MHD (on its
own, coupled to ideal mhd, as limiting case in Con2Prim, ...)
  - radiative transport: possible enhance Caltech leakage code for
general geometries (for NSNS mergers), however: was explicitly taken out
of proposal due to funding cut
  - ID solver for complex EOS: Frank will contact Nick Stergioulas about
making (a version of) RNSID public, with the ET adding complex EOS
support using EOS_Omni (note: there apparently already is support for
complex EOS using a private interface)
  - cosmology: Eloisa and Erik interested, Eloisa willing to give a 1hr
presentation to get things started
  - MP:
  -- needs final ok from developers, details of publication need to be
discussed
  -- Is well tested in vacuum and supported by Kranc. Hydro support is
being used for publication work and should also work, but is less well
tested
  -- MHD part is essentially untested and not complete (but simple to add).
  -- Erik agreed to give a presentation to teach how to use it and to
point out the secrets to make things work (or fail).
  -- unlikely to be included in next release but possibly shortly after,
to be discussed at workshop
* collect registration fee to pay for catering (Yosef will ask Josh),
should not be more than USD ~50

MHD:
* paper is due since the grant will run out soon
* will mention characteristic speed issue in paper
* Bondi infall has problems with interpolation from 1d to 3d
* will coordinate via email and have authors commit to tasks for this week

Misc:
* will have a call on labour day

Yours,
Roland







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