From btsao at utexas.edu  Tue Apr  1 08:00:00 2025
From: btsao at utexas.edu (Bing-Jyun Tsao)
Date: Tue, 1 Apr 2025 08:00:00 -0500
Subject: [Users] Second announcement: 2025 North American Einstein Toolkit
 Workshop registration opens
Message-ID: <CAPJ=2D0ETP_GYOoJ3HuAD+N3YD6L8GKDm0HD2cX6sQio3eByaA@mail.gmail.com>

Dear Einstein Toolkit users,

The registration for the 2025 North American Einstein Toolkit Workshop is
open. The workshop will be held at the University of Texas at Austin from
June 09 - 13.
The link to the external registration form can be found on the event
website:
https://indico.global/event/14071/page/4351-registration

The workshop is an opportunity for researchers and students to learn about
the Einstein Toolkit (*https://einsteintoolkit.org/*
<https://einsteintoolkit.org/>), a community-driven software platform of
core computational tools to advance and support research in relativistic
astrophysics and gravitational physics. The workshop will offer a mixture
of talks and tutorials. The tutorials provide an opportunity for new users
to become familiar with the Einstein Toolkit cyberinfrastructure. The talks
are aimed at highlighting exciting science using the tools of numerical
relativity, in particular, the Einstein Toolkit. At the end of the workshop,
there will be a broad discussion on future directions of the Einstein
Toolkit.

More information can be found at:
https://indico.global/event/14071/

-- 
*Bing-Jyun Tsao*
Graduate Student, Department of Physics
University of Texas at Austin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20250401/706612ff/attachment.htm>

From SilvaRL at cardiff.ac.uk  Wed Apr  2 08:49:13 2025
From: SilvaRL at cardiff.ac.uk (Rhiannon Silva)
Date: Wed, 2 Apr 2025 13:49:13 +0000
Subject: [Users] GW150914 par file without Llama?
In-Reply-To: <CAP6hNvx5g=mvG5Kc80VU6=zSfsxvcK4hQCxY3_RWj=sP4WqT8w@mail.gmail.com>
References: <LO0P265MB6273F2A0B37A75C795C71582E4D12@LO0P265MB6273.GBRP265.PROD.OUTLOOK.COM>
 <CAP6hNvx5g=mvG5Kc80VU6=zSfsxvcK4hQCxY3_RWj=sP4WqT8w@mail.gmail.com>
Message-ID: <CWLP265MB628797A2DCAF9E4AD0625D68E4AF2@CWLP265MB6287.GBRP265.PROD.OUTLOOK.COM>

Hi Zach,

Thank you for this! I need to use McLachlan and z-axis symmetry for now, but your parameter file will be very useful starting place, and I'll definitely want to use BaikalVacuum later too.

Thanks so much!
Rhiannon.

________________________________
From: Zach Etienne <zachetie at gmail.com>
Sent: 27 March 2025 16:40
To: Rhiannon Silva <SilvaRL at cardiff.ac.uk>
Cc: users at einsteintoolkit.org <users at einsteintoolkit.org>
Subject: Re: [Users] GW150914 par file without Llama?

External email to Cardiff University - Take care when replying/opening attachments or links.
Nid ebost mewnol o Brifysgol Caerdydd yw hwn - Cymerwch ofal wrth ateb/agor atodiadau neu ddolenni.


Hi Rhiannon,

I released a set of GW150914 parameter files that forego use of Llama and use BaikalVacuum for the spacetime evolution, as part of my paper https://arxiv.org/abs/2404.01137 . The parfile can be found here:

https://github.com/zachetienne/baikalvacimproved/tree/main/BaikalVacuum/parfiles

You may want to read the paper to learn more. Hope this helps!

-Zach

*     *     *
Zachariah Etienne
Assoc. Prof. of Physics, U. of Idaho
Adjunct Assoc. Prof. of Physics & Astronomy, West Virginia U.
https://etienneresearch.com<https://etienneresearch.com/>
https://blackholesathome.net<https://blackholesathome.net/>


On Tue, Mar 11, 2025 at 9:58?AM Rhiannon Silva <SilvaRL at cardiff.ac.uk<mailto:SilvaRL at cardiff.ac.uk>> wrote:
Hi,

I need a parameter file similar to the GW150914 binary black hole example but without the Llama patches. Does anyone already have something like that I could use? If not, would it be a good idea for me to start from the qc0-mclachlan example and adapt that to my needs? It seems like that might be easier than trying to work backward from GW150914.par? Is there anything old/outdated in the qc0-mclachlan example which I should be aware of?

Also, can anyone tell me why qc0-mclachlan uses 3 refinement centres (CarpetRegrid2::num_centres = 3) and not 2 as in GW150914?

Thanks,
Rhiannon.
_______________________________________________
Users mailing list
Users at einsteintoolkit.org<mailto:Users at einsteintoolkit.org>
http://lists.einsteintoolkit.org/mailman/listinfo/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20250402/b901b43d/attachment.htm>

From rhaas at illinois.edu  Wed Apr  2 17:15:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Wed, 02 Apr 2025 17:15:01 -0500
Subject: [Users] Einstein Toolkit Meeting Reminder
Message-ID: <E1u06MP-00000002f8M-1XJz@ekohaes8.ncsa.illinois.edu>

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.

https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call

--The Maintainers

From btsao at utexas.edu  Thu Apr  3 18:08:35 2025
From: btsao at utexas.edu (Bing-Jyun Tsao)
Date: Thu, 3 Apr 2025 18:08:35 -0500
Subject: [Users] 2025 Registration opens for North American Einstein Toolkit
 School and Workshop
Message-ID: <CAPJ=2D0vLcDOFc-9WpJyDYu=9T1N8_9gyHWGwWb3Ajz2wKme3A@mail.gmail.com>

Dear all,

The registration for the North American Einstein Toolkit workshop is now
open until May 31, 2025. The workshop will be held at the University of
Texas at Austin from June 09 - 13. The link to the external registration
form can be found on the event website:
https://indico.global/event/14071/page/4351-registration
If you would like to apply for travel support, please register before April
30, 2025 for full consideration.

The workshop is an opportunity for researchers and students to learn about
the Einstein Toolkit (*https://einsteintoolkit.org/*
<https://einsteintoolkit.org/>), a community-driven software platform of
core computational tools to advance and support research in relativistic
astrophysics and gravitational physics. The workshop will offer a mixture
of talks and tutorials. The tutorials provide an opportunity for new users
to become familiar with the Einstein Toolkit cyberinfrastructure. The talks
are aimed at highlighting exciting science using the tools of numerical
relativity, in particular, the Einstein Toolkit. At the end of
the workshop, there will be a broad discussion on future directions of
the Einstein Toolkit.

More information can be found at:
https://indico.global/event/14071/

-- 
*Bing-Jyun Tsao*
Graduate Student, Department of Physics
University of Texas at Austin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20250403/f59a29fd/attachment.htm>

From wernecklr at gmail.com  Fri Apr  4 12:32:59 2025
From: wernecklr at gmail.com (Leo Rosa Werneck)
Date: Fri, 4 Apr 2025 10:32:59 -0700
Subject: [Users] Meeting minutes for 2024-11-21
Message-ID: <EE778520-CC30-480F-8D82-1E58FE7FAC8F@gmail.com>

Hi all,

Here are the minutes from yesterday?s meeting.

Cheers,
Leo

------------

Present: Roland (Chair), Leo (Minutes), Peter, Zach, Steve, Deborah, Keith,
         Maxwell, Lucas, Johnny

*ET Release*
  - We now have a timeline: current step is finishing code reviews.
  - CCE: Lucas started review, pointed out missing things. Deborah is working
         on adding them and validating the code output. 
  - FLRWSolver: Zach sent initial review to champion, who updated the code. Zach
                received the files and will perform second round of review.
  - BHaHAHA: Peter is reviewing and will finish this or next week.
  - Z4c: Still trying to get tests up and running.

*Upcoming NA ET Summer School (Austin, TX)*
  - Website is up and running: https://indico.global/event/14071/
  - Registration is now open!
  - Accepting both in-person and online attendance.
  - Deadline to apply for travel support: May 15 (subject to change).

*Open Tickets & ready for review*
  - #2861: Lucas helped user resolve most of the issues. User asked how to
           enable subcycling, so Lucas will tell them to contact Liwei.
  - #2864: Spectre CCE exporter under review.
  - #2848: updates to FLRWSolver under review.
  - #2633: Peter added missing documentation and will be in touch with Steve.

------
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 at uidaho.edu <mailto:leonardo at uidaho.edu>
https://leowerneck.github.io <https://leowerneck.github.io/>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20250404/0dc4412a/attachment.htm>

From rhaas at illinois.edu  Mon Apr  7 15:18:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Mon, 07 Apr 2025 15:18:01 -0500
Subject: [Users] Agenda for Thursday's Meeting
Message-ID: <E1u1suv-0000000016w-1Veo@ekohaes8.ncsa.illinois.edu>

Please update the Wiki with agenda items for Thursday's meeting. Thanks!

https://docs.einsteintoolkit.org/et-docs/meeting_agenda

--The Maintainers

From rhaas at illinois.edu  Wed Apr  9 17:15:02 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Wed, 09 Apr 2025 17:15:02 -0500
Subject: [Users] Einstein Toolkit Meeting Reminder
Message-ID: <E1u2dhG-00000001ICn-07T7@ekohaes8.ncsa.illinois.edu>

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.

https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call

--The Maintainers

From rhaas at illinois.edu  Thu Apr 10 09:35:26 2025
From: rhaas at illinois.edu (Roland Haas)
Date: Thu, 10 Apr 2025 07:35:26 -0700
Subject: [Users] meeting minutes for 2025-04-10
Message-ID: <20250410073526.065d743d@fdea4908>

Present: Roland, Peter, Steve, Zach, Deborah, Johnny, Keith, Leo

ET release
==========

* no updates on Z4c
* Deborah is working through Lucas' comments on CCE
* Zach is reviewing FLRWSolver
* Peter will start reviewing 

ET summer school
================

* no updates yet

Other items
===========

* Zach pointed out that AHFinderDirect's docs and paper all suggest to
  use Hermite interpolation, but the ET mostly uses Lagrange. Zach
  finds faster horizon finding times with Hermite, possibly due to less
  noise due to the better interpolator


Yours,
Roland

-- 
My email is as private as my paper mail. I therefore support encrypting
and signing email messages. Get my PGP key from http://pgp.mit.edu .
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20250410/e410521e/attachment.sig>

From rhaas at illinois.edu  Mon Apr 14 15:18:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Mon, 14 Apr 2025 15:18:01 -0500
Subject: [Users] Agenda for Thursday's Meeting
Message-ID: <E1u4QFl-00000001zVa-2D3m@ekohaes8.ncsa.illinois.edu>

Please update the Wiki with agenda items for Thursday's meeting. Thanks!

https://docs.einsteintoolkit.org/et-docs/meeting_agenda

--The Maintainers

From rhaas at illinois.edu  Wed Apr 16 17:15:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Wed, 16 Apr 2025 17:15:01 -0500
Subject: [Users] Einstein Toolkit Meeting Reminder
Message-ID: <68002be5.p++yYFzm4tLYnZZI%rhaas@illinois.edu>

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.

https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call

--The Maintainers

From lucas.t.s.carneiro at gmail.com  Thu Apr 17 09:54:16 2025
From: lucas.t.s.carneiro at gmail.com (Lucas Timotheo Sanches)
Date: Thu, 17 Apr 2025 09:54:16 -0500
Subject: [Users] Meeting Minutes for 2025-04-17
Message-ID: <CAFOyWAizr2sK+dvOEPGtBL6KAEHKDqLUj3frp24xHBYge8HVBQ@mail.gmail.com>

Present: Lucas T. Snches (Minutes), Steven R. Brandt, Roland Hass,
Zacharia Etienne, Leo Rosa Werneck (Chair), Deborah Ferguson.

# Upcoming ET  Release

- z4c: No test cases yet.
- BHaHAHA: Peter is unavailable for review due to medical reasons. This means
  that the inclusion of this code may have to be delayed.
- CCE: Lucas reports being OK with the inclusion so far. Test cases and
  documentation are missing, but Deborah reports to be working on it. The
  deadline for the final review and inclusion was set next week (04/24/2025).
- FLRW Solver: Zach reports that he performed an initial review and Hayley
  responded very quickly. First round of feedback and fixes are done and Zach
  wants to give the code another pass. He reports that it will be possible to
  give the final review vote next week (04/24/2025).

# ET US Summer School, Austin TX, June 9-13 2025

- Pablo sent invitations to speak for all speakers.
- Zach reports that during the recent PI meeting, Pablo shared detailed updates
  of the summer school. Everything is going well. Zach's understanding is that
  If every invited speaker gives a talk, there may not be time for any
  contributed talks. If not, there will probably be invited talks.

# Unanswered questions on mailing list

No questions

# Open tickets sorted by update time

- 2861: Lucas reports being unable to answer the reporter's latest questions in
  the last few days due to paper submission deadlines and a conference. He says
  that he will continue answering the ticket.
- 2856: Steve reports having addressed all comments. Roland points out that the
  code only triggers under specific conditions, which Steve reports as being
  correct and intended. Roland asked for Steve to resolve conversations in the
  GitHub page and to report that the behaviour as is is acknowledged and
  intended in writing for accounting purposes.
- 2052: Steve says that he looked at it, but he still needs more time to fix it


# Tickets ready for review

- 2855: Lucas reports waiting for input on how to read variables from parameter
  files without bypassing the READS/WRITES mechanism of schedule.ccl files.
  Roland provided information on a set of Driver functions that can be used to
  notify the Driver that data has been changed. Lucas reports that he will look
  into these and update the thorn accordingly.

From jiliwei.phys at gmail.com  Thu Apr 17 13:15:46 2025
From: jiliwei.phys at gmail.com (Liwei Ji)
Date: Thu, 17 Apr 2025 14:15:46 -0400
Subject: [Users] Slices of today's talk
Message-ID: <AF75639C-4461-4027-8D6A-7EE0FED0B884@gmail.com>

Hi all,
Attached please find the slices of today?s talk.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: MCneutrino_slides_CarpetX_2025.pdf
Type: application/pdf
Size: 475754 bytes
Desc: not available
URL: <http://lists.einsteintoolkit.org/pipermail/users/attachments/20250417/81dd2ebc/attachment-0001.pdf>
-------------- next part --------------


Regards,
Liwei

From rhaas at illinois.edu  Mon Apr 21 15:18:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Mon, 21 Apr 2025 15:18:01 -0500
Subject: [Users] Agenda for Thursday's Meeting
Message-ID: <6806a7f9.BhD3A/mtKlVgZlmt%rhaas@illinois.edu>

Please update the Wiki with agenda items for Thursday's meeting. Thanks!

https://docs.einsteintoolkit.org/et-docs/meeting_agenda

--The Maintainers

From rhaas at illinois.edu  Wed Apr 23 17:15:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Wed, 23 Apr 2025 17:15:01 -0500
Subject: [Users] Einstein Toolkit Meeting Reminder
Message-ID: <68096665.TRfBsZd0BX7wqiOO%rhaas@illinois.edu>

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.

https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call

--The Maintainers

From sbrandt at cct.lsu.edu  Thu Apr 24 09:52:32 2025
From: sbrandt at cct.lsu.edu (Steven Brandt)
Date: Thu, 24 Apr 2025 09:52:32 -0500
Subject: [Users] Meeting minutes for 2025-04-24
Message-ID: <a0a3fd9a-c988-4961-a92a-b29ff81bcf78@cct.lsu.edu>

Present: Steve, Roland, Zach, Deborah, Keith, Leo, Johnny, Lucas

Release: No updates.

BaHaHa: Last results of the paper are coming down the pipeline. Updates 
soon.

CCE: Lucas's feedback was applied last night. Test cases are in 
progress. Uses postprocessing step. Put in small PR for the flesh to use 
binaries in the exe directory. Simfactory needs to copy those, another 
PR. Will generate raw metric data (instead of Bondi news, which is 
tetrad dependent).

Zach: Add this to BBH galery example?

The next release will be the Kruskal release.

We should have started testing a week ago. Need Gallery runners.

Gallery Example Runners:
 ??? BBH: Zach
 ??? TOV: Johnny
 ??? BNS: Leo
 ??? Poisson: Steve
 ??? Multipatch: Lucas
 ??? Axi-Dilaton: Deborah

We need to start running tests.
 ??? Johnny will run on Fronterra

Summer School:
 ??? 20 out of 24 invited speakers
 ??? deadline for travel is next week, currently have 10
 ??????? probably need to advertise more
 ??? things are going well

Unanswered Questions: None
Tickets:
 ??? NoiseX: no updates
 ??? qc0 with CarpetX: parameter file change
 ??? Z4c robust stability update: parameter file change
 ??? 2625: CarpetMask should not be scheduled before 
SphericalSurface_Set, PR exists
 ??? 2025: piraha assumes that assert(false) always aborts
 ??? 2851: Cray pointer fix, waiting on Canuda.
 ??? 2626: Multipole is not OpenMP parallelized: Zach will take a look 
at it.
 ??? 2841: Update GSL tar to 2.8

Next week: Lucas is chair next week, Bill (or Leo).


From rhaas at illinois.edu  Mon Apr 28 15:18:02 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Mon, 28 Apr 2025 15:18:02 -0500
Subject: [Users] Agenda for Thursday's Meeting
Message-ID: <680fe27a.8mmUh9stKLnNwF6o%rhaas@illinois.edu>

Please update the Wiki with agenda items for Thursday's meeting. Thanks!

https://docs.einsteintoolkit.org/et-docs/meeting_agenda

--The Maintainers

From rhaas at illinois.edu  Wed Apr 30 17:15:01 2025
From: rhaas at illinois.edu (rhaas at illinois.edu)
Date: Wed, 30 Apr 2025 17:15:01 -0500
Subject: [Users] Einstein Toolkit Meeting Reminder
Message-ID: <6812a0e5.Wz+riybYOs1zM7m+%rhaas@illinois.edu>

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.

https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call

--The Maintainers