[Users] Meeting Minutes 2021-08-26
Gabella, William E
b.gabella at Vanderbilt.Edu
Thu Aug 26 10:48:04 CDT 2021
Present: Bill G, Helvi W, Steve B, Miguel G, Yosef Z, Roland H, Leonardo
RW, Atul K,
Peter D, Zach E, Maria H, Gabriele B
Chair: Helvi W, Minutes: Bill G
* SPEC benchmark contribution
[https://bitbucket.org/einsteintoolkit/tickets/issues/2470 task] [RH, SB]
Roland, no real updates, do need to send an extended description and ask
need more details. Steve would like to know why they asked for this
* next ET release manager [RH]
Next release is in November; recall feature freeze is about two weeks
and hard freeze a few days before.
Steve agreed to be the manager with help from Yosef. Helvi, it is
useful to have
more than one person to do this. Steve, Roland left off the conditional
will do it if Roland does this "soon," need not be the next release after.
** New inclusions for next release
FLRWSolver/Cosmology by Hayley Macpherson and Helvi will review it.
Kuibit and possibly RePriMand for inclusion. RePriMand has ticket #2551,
RePriMand does have a thorn and an external library for it. Unlikely to
build out of the
box...requires a couple of other packages/tools. If it requires
external libraries not
typically available on clusters, we cannot enable it by default. For
example, Peter's 1D
Force is a model of a stand-alone version that is not built by default
and uses SCons
Atul, wanted to volunteer for Kuibit review, and he is unable to review
semester. Can do less intensive work for the release though. Yosef
intends to try
to review Kuibit. Review does not check for correctness, checks for
documentation. Ticket #2438,
Yosef, build systems question, can RePriMand run on all clusters.
Wolfgang says it
is mostly Python and if you have some Pip version maybe can
install/build that way.
Builds using Meson which uses Ninja and not Make.
Gabriele, how will Kuibit is to be included in the ET? In the repo or
installed by Pip?
Roland, could use it in GetComponents and that gives best exposure and
branches be checked out. Kuibit was reviewed in the Journal of Open
Software...there is a link in the ticket.
JOSS paper at https://joss.theoj.org/papers/10.21105/joss.03099 .
Roland, If the software is independently hosted, we ask for a branch
label with the
ET name, and then if their Master branch for that software fails, we use
the ET branch
of their software.
Helvi, has a code in the ET and has one branch for the ET and there is
her group uses routinely.
Roland discusses a couple of options and how to get the dependencies for
example. Gabriele also uses Tags on the Branches that he can make very
He likes distributing the repo because of all the examples. Helvi, maybe
these links in the documentation.
** Gallery Examples
Helvi has two students that should do examples.
* Any Other Business
** Maria, would like documentation on thorns Multipole and
and SphericalSurface used to extract the GWs. Why/How do they depend on
other and how to tune the parameters. Helvi, Check the Readme for the
some information there.
Roland, WeylScal4 everyhwere in 3D space, and Multipole calculates the
and spin spherical harmonics. QuasiLocalMeasures is separate, concerned
calculations on horizons, like spin, etc, not concerned with waves but
There are papers cited there, in the README. An older thorn does the
Some documentation was started but does not go very far.
not do any analysis, it is a way to describe in the code star-shaped
Horizon finder will store the shape in the spherical surface to do the
horizon quantities. Waveform extraction does not use the
SphericalSurface at all.
** Helvi, there is a new monthly call for the NumRel community started
Fischer; the next call is 13th September. The idea is to have speakers
different code communities, next time SXS/Mitman and Meudon/Oertel are
presenting. Structure is to describe the project, here is what we are
here is where we have difficulties and ask if there are any ideas in the
* [https://www.einsteintoolkit.org/tools/unanswered.php unanswered
question on mailing list]
Perl script is failing, in many ways. It does not display unanswered
entries on the
mailing list right now. Roland is aware.
open tickets sorted by update time]
Helvi goes through the tickets.
#2553, CPPFLAGS and CXXFLAGS trouble when you use a non-g++ compiler, like
using the cuda compiler. Roland has a work around. Only affects Cuda.
If doing Cuda this might affect you.
#2559, HDF5 library generates 2GB of files and we do not use them and
trouble in some user quotas. Roland, this is cleanup.
#2558, link for Power incorrect, ticket is almost closed, need to wait
week and then will backport the fix.
#2538, inclusion of Kuibit, discussed above.
tickets ready for review]
Nothing new or discussed.
* Any Other Business
Next weeks chair and minute taker:
Yosef will chair. Maria will take minutes.
Research Assistant Professor
Department of Physics and Astronomy
Nashville, TN USA
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