[Users] Meetings Minutes 2020-10-29

Hamilton, Maria babiuc at marshall.edu
Thu Oct 29 14:57:33 CDT 2020

Participants: Beyhan, Peter Diener, Bill Gabella, Zach Etienne, Atul Kedia, Kenneth Sible, M. Garcia, Roland Haas, Samuel Cupp, Yosef Zlochower and Maria Babiuc Hamilton.

Chair: Zach E.
Minutes: Maria H.

Zach: The first item on the agenda is the timeline until the next release. The most important reminder is that the hard release is on Thanksgiving Thursday and everything must be reviewed by then.
What is the status of the gallery tests and of the test suites?

Roland: Found runners of all gallery tests, we are in good shape. Rerun all test suites once a week, nothing breaking, the only issues are seen with GPU support, it might be an easy fix. Also, the new added tests that are using ADMConstraints fail, again it might be an easy fix. Test suites hang on Mac, but this is not necessarily an issue. Anybody willing to investigate the GPU failing?

Zach: The code marked for inclusion in the upcoming release is NRPyPN. Fixed the big things. Instructions are right there at the bottom of the documentation.

A discussion ensues between Zach and Roland regarding the documentation of the functions in NRPyPN. Zach will work on it this coming week.  The inclusion vote will happen via email, before Thanksgiving Thursday.

Zach: Next are the tickets, unanswered questions in the mailing list.

Roland: there are 17 tickets, among which more relevant Issue #2212/Issue #2206 regarding Lorene, and #2332/#2089 regarding piraha.
Peter worked on stability with summation by parts ticket #2368 during meeting and sent a pull request.

Next there are some questions from the participants. M. Garcia asks what machine files spn, npn, stand for. Roland refers him to https://docs.einsteintoolkit.org/et-docs/Configuring_a_new_machine
Maria sees a -ludev error, and is instructed to install libudev-dev.
Beyhan has a more extensive question, on how to change the beta driver for binary neutron stars in McLachlan.
Zach answers with a short explanation on how he managed to change the gamma driver shift parameter. He will send Beyhan an email with his documentation.
Beyhan has another question on how to mark the location of the stars, and Zach answers by explaining how to employ VolumeIntegral_GRMHD.
Roland points out that all symmetries should be turned off if this diagnostic is used.

After chairs and minute takers volunteers are enlisted for the next two weeks, Zach closes the meeting.


Maria C. Babiuc Hamilton, Ph.D.
Professor, Department of Physics
College of Science, Marshall University,
1 John Marshall Drive, Huntington, WV, 25755
Room S 257, Phone: (304)696-2754

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