Users May 2026

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Meeting minutes for 2026-05-28
by Deborah Ferguson 28 May '26

28 May '26

Present: Beyhan, Deborah, Peter, Roland, Steve, Zach, Jordan, Noora, Nimi, Maxwell, Lucas Chair: Peter Minute taker: Deborah Release: Release probably won’t be done until end of June Hopefully don’t need any more commits Current build is still broken IllinoisGRMHD “undefined reference to max” and “undefined reference to min” Zach: there was a recent merge, they used to be using a user defined max and min but switched back to standard library and removed the macro. Zach will have Leo fix it Testsuite some tests still failing for some machines developers of various thorns will look into it Gallery runs: Noora working on running Axidilaton example BBH waiting for Deborah to fix machine files for stampede3 Proposed inclusions BHahaha Peter: happy with it CanudaX Beyhan: nothing to report Lucas: no updates, will look at it again Cottonmouth: Deborah: started looking through it, nothing to report Zach: has done a couple rounds of review already and will do one more given the recent patches CapyrX deferred Boost Done TwoPuncturesX Done Tickets from Jordan issue with regex, Steve fixed it North American Einstein Toolkit Workshop and School 2026: Steve has tutorial server up and running contact Steve if you need anything ----------------------------------------- Deborah Ferguson Assistant Professor The University of Rhode Island

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 27 May '26

27 May '26

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

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 25 May '26

25 May '26

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

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Meeting minutes for 2026-05-21
by Steven Brandt 21 May '26

21 May '26

Present: Jordan, Steve, Roland, Peter, Zach, Cheng-Hsin, Nikolai, Lucas, Deborah Chair: Zach Minute Taker: Steve Release AHFinderDirect param.ccl change approved fix in current form BHaHAHA - should have reads and writes declarations in the schedule https://bitbucket.org/llamacode/llama/pull-requests/10/diff - Question about the detJ Naming convention is confusing (Lucas), Jordan made the fix based on the expected answer for a Sphere Lucas will fix the comment Fix two typos Add --author line to commit to give Jordan credit Ticket 963: Will not make it into the release Two failing McLachlin tests on Sunrise, maybe just need to adjust the tolerances Peter will look into adjusting Running list of mandatory packages for testing: numpy *************************** * FEATURE FREEZE DECLARED * *************************** Test failures: TOVola is failing on DeltaAI and Sunrise North American Einstein Workshop and School Registration is closed Tickets: Formaline/GRHayL patch to understand symlinks "The happiest thought of my life came to me in 1907... `For an observer falling freely from the roof of a house, there exists--at least in his immediate surroundings--no gravitational field.'" - Albert Einstein (reflecting on the insight that became the equivalence principle)

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 20 May '26

20 May '26

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Meeting minutes for 2026-05-26
by Nikolai Wallin 14 May '26

14 May '26

Present: Nikolai, Steve, Peter, Roland, Beyhan, Jordan, Lucas., Zacharaiah, Cheng-Hsin, Chair: Steve Minutes: Nikolai ET release ======== * Feature freeze held by two items, Lucas’ Ticket and carpetX ticket * CarpetX pull request fixes three tickets, Jay has approved * Zac will be checking over this morning. * Cottonmouth - Zac still needs to run clanker check this morning. No word from Deborah yet. * CapyrX will be deferred * CanudaX - minor issue from Lucas has yet to be addressed. Should be soon * BHaHAHA - Peter still needs to finish review. * Black hole neutron star merge is done * Boost is done - merged in master; should confirm that fuka builds properly Status of testing on Clusters -------------------------------------- Not done, serious testing will begin after the freeze Finish with release ETK Workshop and School ===================== * Past registration dates * If you are a tutorial presenter and plan on using the tutorial server, plan that with Steve now to test things out Gallery Runners ============ * Adjust table to reflect status Open Tickets ========== https://bitbucket.org/einsteintoolkit/tickets/issues/2940/ cce_export-allow-for-changing-array_size https://bitbucket.org/einsteintoolkit/tickets/issues/2941/ cce_export-uses-setiosflags-unqualified * Deborah is verifying * 2941 is an actual bug, fails using clang. * 2940 is also a bug, but an unlikely to encounter one. * Deborah is running tests before merging. https://bitbucket.org/einsteintoolkit/tickets/issues/2936/ carpetx-tsv-output-does-not-append-files * tsv output does not append files * There is some functionality missing from carpetX, that is not strictly necessary. Trying to get those fixed. Also lacks a test * Probably wont make it to release https://bitbucket.org/einsteintoolkit/tickets/issues/2912/ inconsistent-computation-of-the-volume * Roland will make a pull request * Fallback is not consistent. * Observable change in Thronburg04 should be announced as it is a longstanding bug * We should add test cases for these https://bitbucket.org/einsteintoolkit/tickets/issues/2939/ ahfinderdirect-range-options-for * Should be approved. * Should confirm the regex, and correct the default https://bitbucket.org/einsteintoolkit/tickets/issues/2927/ gcc-version-dependent-error-range-error * Compiler bug? * Can’t be fixed before release * There is a workaround

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 13 May '26

13 May '26

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LVC_NR format
by Rhiannon Silva 12 May '26

12 May '26

Hi, Is there an easy way to get LVC_NR format waveforms from an ETK simulation directory? Thanks, Rhiannon

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 11 May '26

11 May '26

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

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meeting minutes for 2026-05-07
by Roland Haas 07 May '26

07 May '26

Present: Roland, Steve, Peter, Deborah, Max, Beyhan, Lucas, Nikolai, Zach Chair: Deborah Minutes: Roland ET release ========== * freeze postponed by a week * Cottonmouth: some updates, will need to recreated code once more CapyrX ------ * issues on outer boundary suggest * desire to produce a waveform * Steve raised the question whether this means CapyrX should be included or no * Zach argues that the alternative, waiting a year, is quite bad * Roland mentioned the idea of point release that would include only those changes * this will need spelling out what is actually meant by a "point release" * in the call it was decided to postpone inclusion of CapyrX in 2026_05, but make an effort to include all infrastructure changes to CarpetX. CanudaX ------- * Lucas handed review report to Cheng-Hsin * change requests are dead-code removal, missing license, and similar but no actual code changes ET_BHaHAHAH ----------- * Peter ran some tests, requires changes for utilities * Zach added a single spinning black hole test case * bugfix found by Thiago Assumpção, Zach is verifying and added fix * will need to add `module load python` to clusters * Zach will remove the offending code bit BHNS Gallery example -------------------- * all done Boost ----- * included, no known issues yet TwoPuncturesX ------------- * Steve noticed that TwoPuncturesX has non-trivial modifications compared to TwoPunctures * multiple issues exist with these multiple (3-4) copies of TwoPunctures, making keeping them all in sync difficult * Steve came up with a way of creating a single source 'library' version that could support all of these, at least TwoPunctures(X) though ET summer school ================ * registration for in person attendance closes tomorrow, it is suggested to send out a reminder TOVola ====== * Zach has taken over maintainership * code is now in EinsteinInitialData repository * is fixing bugs, which may address the observed test failures Open Tickets ============ * https://bitbucket.org/einsteintoolkit/tickets/issues/2915 include-capyrx-a-gpu-accelerated resolved by postponing CapyrX * https://bitbucket.org/einsteintoolkit/tickets/issues/2929 grhaylet-illinoisgrmhd Max will take a look and close ticket if fixed * https://bitbucket.org/einsteintoolkit/tickets/issues/2932 kuibit-detecting-0d-and-1d-files-generated Gabriele will create a new kuibit version for this and norms file changes * https://bitbucket.org/einsteintoolkit/tickets/issues/2938 use-swmr-mode-for-hdf5-output-in need to check if changes to readers are required * https://bitbucket.org/einsteintoolkit/tickets/issues/2928 new-simfactory-option will not make it to the release, proposes option to simfactory to request a number of GPUs. Roland mentioned a similar issue with SLURM "features". * https://bitbucket.org/einsteintoolkit/tickets/issues/2898 carpetx-split-interpolator-calls-into required for release * https://bitbucket.org/einsteintoolkit/tickets/issues/2912 inconsistent-computation-of-the-volume Roland / Lucas will take a look * https://bitbucket.org/einsteintoolkit/tickets/issues/2927 gcc-version-dependent-error-range-error will postpone until next week Notices ======= We learned that Keith Dow, who has been a regular participant in these calls and previous Einstein Toolkit release team member, unexpectedly passed away https://www.tributearchive.com/obituaries/48303590/keith-dow 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 .

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