Users March 2025

users@lists.einsteintoolkit.org

13 participants
23 discussions

Building the EK in cluster: MPI error
by Samuel Gómez Gómez 19 Mar '25

19 Mar '25

Hi, while trying to build the ET on the Marenostrum cluster (from the Barcelona Supercomputing Center) I obtain the following error: Configuring with flesh MPI Warning: use of flesh MPI via MPI option is deprecated and should be replaced with the thorn ExternalLibraries/MPI and its MPI_DIR option MPI selected, but no known MPI method - what is "impi" ? Error reconfiguring sim_cx-config make: *** [Makefile:732: sim_cx-config] Error 2 The MPI thorn is on the thornlist and can be found on the repos folder as an external library. On the other hand, members of my group have already installed the Toolkit on this cluster, and I am using the same configuration file as they are, so I am unsure what the problem might be. I am still quite new to this kind of task, so I would appreciate any help. Thanks!

2 1

Agenda for Thursday's Meeting
by rhaas＠illinois.edu 17 Mar '25

17 Mar '25

Please update the Wiki with agenda items for Thursday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --The Maintainers

2 1

Meeting Minutes for 2025-03-13
by Lucas Timotheo Sanches 13 Mar '25

13 Mar '25

Present: Lucas (Minutes), Bill Gabella, Maxwell Rizzo, Roland Hass (Chair), Steven R. Brandt, Keith, Johnny Tsao, Zach Etienne # Upcoming release possible inclusions - Roland still has to set up the service account for the release manager. -Z4C: Roland still to create test cases for the code. -BHaHAHA: Zach reports it being in review. - CCE code to hook up to Spectre: I will talk to Deborah - Modules for FLRWSolver: Hayley Macpherson says she will have something up soon Zach Etienne will be the reviewer when the thorns are ready. # ETK Summer School at Austin Texas, June 9-13th. - Registration is still going to take a while. The group is working on setting it up, but there were technical issues. - Johnny reports having sent the announcement without the website to Hyperspace. - Johnny says he will also advertise the meeting at the NR community call, either through the mailing list or Slack channel. # Unanswered questions on the mailing list: - There was a question asking for a BBH parameter file that does not use Llama Roland mentioned he Knows of a parameter file that can be used and will talk to Pablo to ask if it can be shared with the asker. - There was a question on translating ETK web pages to Chinese. Steve moved these discussions to the user list. # Open tickets sorted by update time 2861: Lucas reports that the `Punctures` thorn cannot be made to work with simple edits to parameter files. He created a qc0 parameter file using Z4C to supply the bug reporter. 2862: Lucas reports this to be a simple update to a parameter file and is a self contained simple change. Roland asks for Z4C reviewers to take a look # Tickets ready for review 2855: Roland will link example where variables to be modified are supplied via parameter strings while still respecting driver reads and writes, which is one of Lucas's concerns # Final notes: - We will not have a call next week, due to APS meetings. - Roland will talk to Maxwell to have the timeline set up.

1 0

Einstein Toolkit Meeting Reminder
by rhaas＠illinois.edu 12 Mar '25

12 Mar '25

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. ** DAYLIGHT SAVING TIME WARNING ** Please note that the US / EU has already / not yet transitioned to / from daylight saving time. The phone call will be at 15:00 Central EU time. https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call --The Maintainers

1 0

Second announcement: Caltech Relativistic Astrophysics Summer School 2025
by Most, Elias R. 11 Mar '25

11 Mar '25

Dear colleagues, We are pleased to announce the Caltech Relativistic Astrophysics Summer School 2025, which will take place in Pasadena, CA from June 23-27, 2025. https://relastro-school-2025.caltech.edu<https://relastro-school-2025.caltech.edu/> High-energy astrophysics has made remarkable progress in describing some of the most extreme phenomena in the universe. Recent discoveries such as compact binary mergers and multi-messenger gravitational wave events, fast radio bursts, ultra-high energy cosmic rays, and advances in our understanding of the transient high energy sky (radio, X-ray, gamma-ray) open up new possibilities for forefront research in these rapidly evolving fields. This summer school aims to provide beginning and advanced graduate students in astrophysics, physics, and adjacent fields with the knowledge and tools to fully take advantage of these exciting developments. A particular focus of the school will be the application of emerging computational tools to provide high-fidelity models of high-energy astrophysical phenomena in strong gravity environments, e.g., around black holes or neutron stars. The one-week long summer school will include lectures on a broad range of topics: * Black hole astrophysics * Dynamo and turbulence * Magnetohydrodynamics * Multi-messenger gravitational wave events * Neutrino astrophysics * Neutron star magnetospheres * Numerical Relativity * Plasma kinetics Applications are open now. To receive full consideration, applications should be submitted by April 1, 2025. Partial financial support is available on a request basis. For the organizers, Elias R. Most, Sasha Philippov

1 0

Re: [Users] Regarding the Requested Web Pages for Translation
by Steven Brandt 10 Mar '25

10 Mar '25

Dear Lu, The HTML files are generated from tex files contained in each thorn (all of which are public). It would probably be best to move this discussion to the users' list. --Steve On 3/6/2025 12:35 AM, 陆瑶 wrote: > Dear Steve, > I'm Lu Yao, a student of Professor He from Nanjing Normal University, > China.The website you sent previously, > https://bitbucket.org/einsteintoolkit/www, when opened, shows the > content as in Figure 1. However, we couldn't find the web pages that > we intended to translate. The web pages we need to translate are those > within the "ThornGide" section under "documentation" on the official > website, as illustrated in Figure 2. > Therefore, I would like to trouble you to send us the HTML files > within the "ThornGide" section. Your assistance in this matter is > greatly appreciated. > Thank you! > Best regards, > Lu Yao > > > > ---Original--- > *From:* "何秉然"<hebingran(a)njnu.edu.cn> > *Date:* Tue, Jul 30, 2024 22:15 PM > *To:* "Steven Brandt"<sbrandt(a)cct.lsu.edu>; > *Subject:* Re: translate etk homepage(tutorial) to Chinese > > Dear Steve, > > Thanks for your mail. > > I will ask my students to translate them to Chinese based on your links. > > Best wishes, > Bing-Ran > ------------------ Original ------------------ > *From: * "Steven Brandt"<sbrandt(a)cct.lsu.edu>; > *Date: * Tue, Jul 30, 2024 02:52 AM > *To: * "何秉然"<hebingran(a)njnu.edu.cn>; > *Subject: * Re: translate etk homepage(tutorial) to Chinese > > Dear Bing-Ran, > > The docker file is here: https://github.com/stevenrbrandt/et-websites.git > > But I think what you really want to see his this: > https://bitbucket.org/einsteintoolkit/www > > --Steve > > On 7/26/2024 12:15 AM, 何秉然 wrote: >> Dear Steve >> >> Thanks for your mail. >> >> Some of my students translates these ipynb files, could you also give >> me a link to the docker of the etk home page? >> >> Best wishes, >> Bing-Ran >> >> ------------------ Original ------------------ >> *From: * "Steven R. Brandt"<sbrandt(a)cct.lsu.edu>; >> *Date: * Fri, Jul 26, 2024 02:01 AM >> *To: * "何秉然"<hebingran(a)njnu.edu.cn>; >> *Subject: * Re: translate etk homepage(tutorial) to Chinese >> >> Hello Bing-Ran, >> >> You can, perhaps, start with this notebook: >> https://github.com/EinsteinToolkit/jupyter-et/blob/master/tutorial-server/n… >> >> --Steve >> >> On 7/25/2024 9:51 AM, 何秉然 wrote: >>> Dear Prof. Brandt: >>> >>> I'm Bing-Ran HE, from Nanjing Normal University, China. >>> >>> I have several students and planning to translate etk >>> homepage(tutorial) to Chinese. Could you help us with this task? >>> >>> Best wishes, >>> >>> Bing-Ran >>>

1 0

Agenda for Thursday's Meeting
by rhaas＠illinois.edu 10 Mar '25

10 Mar '25

Please update the Wiki with agenda items for Thursday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --The Maintainers

1 0

Meeting minutes for 2025-03-06
by Leo Rosa Werneck 06 Mar '25

06 Mar '25

Hi all, Here are the minutes from today’s meeting Cheers, Leo Present: Lucas (Chair), Leo (Minutes), Roland, Peter, Zach, Johnny, Keith, Maxwell, Cheng-Hsin, Lu Yao, Bing-Ran He Lu Yao and Bing-Ran want to contribute thorn documentation in Chinese so users can benefit from it. They had previously talked to Steve about this, who was unfortunately not present. Roland and Lucas explained how they do not need to provide HTML files, but rather LaTeX files. They will follow up over email. *ET Release* - Z4c: Trying to get tests up and running. - BHaHAHA: Is working great, will be discussed at APS talk. - FLRWSolver: No response from champion yet. *Upcoming NA ET Summer School (Austin, TX)* - Website is up and running: https://indico.global/event/14071/ - Registration will open soon. *Open Tickets* - #2861: User experienced issues running qc0 with CarpetX and Punctures thorn. Lucas will follow up, as no one present is sure what that thorn does. It could be a simple as an outdated parameter file. - #2860: Fixed finite difference calls in CactusNumerical; assigned to Peter. - #2633: SummationByPart missing documentation for aliased function Diff_gv. - #2625: CarpetMask should not be scheduled before SphericalSurface_Set. - #2856: CarpetX errors out when it cycles time levels if those levels are not valid everywhere. Roland still sees issues, so Lucas will poke Steve. *Tickets Ready for Review (not discussed above)* - #2761: bundled version of CMake, as it's needed by some external libraries. - #2855: Lucas will try to make NoiseX more similar to Noise thorn. - #2839: Leo tested on macOS 15.3.1 using homebrew and it fixed linker issues. ------ Leonardo R. Werneck, Ph.D. Postdoctoral researcher Office EP 314 | Department of Physics | University of Idaho 875 Perimeter Dr. MS 0903 Moscow, ID 83844-0903, USA leonardo(a)uidaho.edu <mailto:leonardo@uidaho.edu> https://leowerneck.github.io <https://leowerneck.github.io/>

1 0

Meeting Minutes for 2025-02-27
by Lucas Timotheo Sanches 06 Mar '25

06 Mar '25

2/27/2025 Present: Keith, Roland, Lucas, Zach, Leo, Johnny Tsao Bahaha: Peter agreed to review Release Maxwell Rizzo is chair and Roland is co-chair: - Will create a service account on bitbucket to streamline chair's job - Easy to create accounts but not restrict rights - Ask external repos if it's okay to push new branches and tags Tickets: - 2858 Compiling PDE issues - in progress - 2856 Steve put in a PR, fixes presync-only - 2776 Was just applied - 2845 std::filesystem needs to be applied - 2855 NoiseX thorn, used for robust stability test. Similarity with Noise? Zach advocates using ChatGPT to help find bugs. Asking if anyone has an update on Li Wei's patch... it's in progress. Official date for the ET meeting in Austin is June 9-13.

1 0

Einstein Toolkit Meeting Reminder
by rhaas＠illinois.edu 05 Mar '25

05 Mar '25

1 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

Users March 2025