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New Einstein Toolkit Release (Schwarzschild)
by Cupp, Samuel D. 25 May '23

25 May '23

Release Announcement Click here to read the announcement in HTML (with hyperlinks): https://einsteintoolkit.org/about/releases/ET_2023_05_announcement.html We are pleased to announce the twenty-sixth release (code name "Karl Schwarzschild") of the Einstein Toolkit, an open-source, community-developed software infrastructure for relativistic astrophysics. The major changes in this release include: * kuibit 1.4.0, which, in addition to bug fixes, improves support for working with horizon data, timer data, and higher rank objects (See release notes for more details). Two new arrangements and thorns have been added: * The FUKA reader for numerical relativity initial data * TwoPunctures_BBHSF for binary black hole with scalar fields initial data New capabilities for existing codes: * Baikal and BaikalVacuum have been updated to have READ/WRITE declarations for automated ghost zone synchronization. Several variable groups (such as RHS variables) are also no longer included in checkpoint/restart operations. * particle_tracerET can now output the particles' four-velocity (contravariant and covariant); added support for binary output format; removed limit on the number of tracer particles In addition, bug fixes accumulated since the previous release in November 2022 have been included. The Einstein Toolkit is a collection of software components and tools for simulating and analyzing general relativistic astrophysical systems that builds on numerous software efforts in the numerical relativity community, including code to compute initial data parameters, the spacetime evolution codes Baikal, lean_public, and McLachlan, analysis codes to compute horizon characteristics and gravitational waves, the Carpet AMR infrastructure, and the relativistic magneto-hydrodynamics codes GRHydro and IllinoisGRMHD. Data analysis and post-processing is handled by the kuibit library. The Einstein Toolkit also contains a 1D self-force code. For parts of the toolkit, the Cactus Framework is used as the underlying computational infrastructure, providing large-scale parallelization, general computational components, and a model for collaborative, portable code development. The Einstein Toolkit uses a distributed software model, and its different modules are developed, distributed, and supported either by the core team of Einstein Toolkit Maintainers or by individual groups. Where modules are provided by external groups, the Einstein Toolkit Maintainers provide quality control for modules for inclusion in the toolkit and help coordinate support. The Einstein Toolkit Maintainers currently involve staff and faculty from five different institutions and host weekly meetings that are open for anyone to join. Guiding principles for the design and implementation of the toolkit include: open, community-driven software development; well thought-out and stable interfaces; separation of physics software from computational science infrastructure; provision of complete working production code; training and education for a new generation of researchers. For more information about using or contributing to the Einstein Toolkit, or to join the Einstein Toolkit Consortium, please visit our web pages at http://einsteintoolkit.org, or contact the users mailing list users(a)einsteintoolkit.org. The Einstein Toolkit is primarily supported by NSF 2004157/2004044/2004311/2004879/2003893 (Enabling fundamental research in the era of multi-messenger astrophysics). The Einstein Toolkit contains about 350 regression test cases. On a large portion of the tested machines, almost all of these tests pass, using both MPI and OpenMP parallelization. Deprecated functionality There are no features marked as deprecated in this release, to be removed in the next release. Contributors Among the many contributors to the Einstein Toolkit and to this release in particular, important contributions to new components were made by the following authors: * Cheng-Hsin Cheng * Gabriele Bozzola * Leonardo Werneck * Ludwig Jens Papenfort * Samuel Cupp * Samuel Tootle How to upgrade from Kowalevski Release (ET_2022_11) To upgrade from the previous release, use GetComponents with the new thornlist to check out the new version. See the Download page (http://einsteintoolkit.org/download.html) on the Einstein Toolkit website for download instructions. The SelfForce-1D code uses a single git repository; thus, using git pull; git checkout ET_2023_05 will update the code. To install Kuibit, do the following: pip install --user -U kuibit==1.4.0 Machine notes Supported (tested) machines include: * Debian, Ubuntu, Fedora, Mint, OpenSUSE, and macOS X installations with dependencies installed as prescribed in the official installation instructions * Deep Bayou * Delta * Expanse * Frontera * Golub * Queen Bee 2 * Queen Bee 3 * Stampede 2 * Summit * Sunrise * SuperMIC * SuperMUC * ThornyFlat Note for individual machines: * TACC machines: defs.local.ini needs to have `sourcebasedir = $WORK` and `basedir = $SCRATCH/simulations` configured for this machine. You need to determine $WORK and $SCRATCH by logging in to the machine. * SuperMUC-NG: defs.local.ini needs to have `sourcebasedir = $HOME` and `basedir = $SCRATCH/simulations` configured for this machine. You need to determine $HOME and $SCRATCH by logging in to the machine. All repositories participating in this release carry a branch ET_2023_05 marking this release. These release branches will be updated if severe errors are found. The "Karl Schwarzschild" Release Team on behalf of the Einstein Toolkit Consortium (2023-05-24) * Leonardo Werneck * Samuel Cupp * Beyhan Karakas * Bing-Jyun Tsao * Cheng-Hsin Cheng * Jake Doherty * Konrad Topolski * Peter Diener * Roland Haas * Steven R. Brandt * Terrence Pierre Jacques * Thiago Assumpcao * Zachariah Etienne May 24, 2023

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Meeting minutes for 2023-05-25
by Cupp, Samuel D. 25 May '23

25 May '23

Present: Sam, Keith, Yosef, Peter, Roland, Zach Chair: Peter Notetaker: Sam * ET_2023_05 Release is out! Peter: Gallery example now has multiple resolutions. Should we include all the data? Will increase the amount of data being stored. Roland: We could just add the data specifically for the new plot and parameter files. Peter: I've already added the parfiles and can add the new data. * SPECv8 Roland: They've asked us for the exact version number of the code they are using. As far as we know, the ball is still in their court for moving forward with this. * Tickets Sam: I still need to close the tickets associated with the release, which I'll do today. Roland: Since we have just released a new version, now is the time to start considering more serious changes to code. One change is removing the compile flags from the linker stage. This is because for compiling with CUDA the linker stage shouldn't be assuming that it is the c++ compiler. This is sufficient to compile CarpetX, but it remains to be seen whether this change will be sufficient for external libraries. Zach: What is the plan for including CarpetX? Is it still coming soon? Roland: The idea is to have it added in the November release, but this will require quite a bit of work to get CarpetX ready for a release, both with code cleanup and testing compilation on different systems. Sam: I know some of the thorns need to be renamed to allow for smooth integration with the rest of the toolkit. Hopefully this will happen sooner rather than later. Peter: Had a conversation with Zach about Ticket #963 but hasn't had a chance to look at McLachlan again since that call. Zach: I found a different version of the 'third' change which has even better results than the original. I'll share that soon. Roland: We can merge Ticket #2731 (checking for incomplete perl install). A fix is also proposed for Ticket #2526 (incorrect read/writes generated by Kranc). Ian doesn't have time to review this, so Roland will try to track down the person who added the READ/WRITE declarations to Kranc. Next week the chair is Zach and the minute taker is Roland.

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HELP with error installing ET_2023_05
by crh＠panix.com 25 May '23

25 May '23

Dear Users of The Einstein Toolkit: I am installing the recent version of The Einstein Toolkit, ET_2023_05. When I run the following command git clone -b ET_2023_05 https://bitbucket.org/peterdiener/selfforce-1d.git SelfForce-1D I get the following error message: Cloning into 'SelfForce-1D'... fatal: Remote branch ET_2023_05 not found in upstream origin Would anyone know a solution to this error? Thank you. Best Regards, Charles R. Hurley Home e-mail: crh(a)panix.com <mailto:crh@panix.com>

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2023 North American Einstein Toolkit School and Workshop (registration deadline approaching)
by Yosef Zlochower 22 May '23

22 May '23

Please note that the deadline to request partial travel support for the 2023 North American Einstein Toolkit School and Workshop is Thursday, June 1. The deadline for registration is June 17 The 2023 North American Einstein Toolkit School and Workshop will be held at the Rochester Institute of Technology on July 17 through July 21. This will be a hybrid conference with talks and participants both in-person and over zoom. The Einstein Toolkit is a community-driven software platform of core computational tools to advance and support research in relativistic astrophysics and gravitational physics. The conference consist of a mixture of tutorials for new users and talks about the latest developments both in the toolkit and the larger scientific community. A preliminary schedule and links to the registration page can be found at https://compact-binaries.org/content/events/2023-07-17/north-american-einst… Registration is now open and remain open until June 17, 2023. As part of the registration process, potential attendees can apply for partial travel support. In order to be eligible, applications must be received prior to June 1. Notification of partial travel support will be made by June 8.

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Meeting minutes for 2023-05-18
by Steven Brandt 18 May '23

18 May '23

Present: Steve, Sam, Yosef, Keith, Roland, Zach, Peter, Jose Chair: Sam Notes: Steve Release: Most of the branches and tags have been done. Gallery: Not all done (Steve forgot). Peter did 4 different resolutions. Roland is moving the tutorial server to github Only Steve, Erik, and Roland can push to the dockerhub Steve needs to run tests on LSU machines. Issue with ticket 2497. IGMHD also has a parameter that replictaes one in TmunuBase. IGMHD will be deprecated to be replaced by GrhaylET. GrhaylET has 90% code coverage. US ET summer school: Registration is open Tutorials have been arranged EU ET summer school. Spec should still be happening. Peter has a convergence plot for NSs. Possible mug image. Steve needs to reply to email Next week: Chair: Peter, Minute Taker: Sam

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GetComponents "enqueue" error
by Panagiotis Iosif 17 May '23

17 May '23

Dear ET users, I am trying to install ET on our local university cluster. I downloaded GetComponents and made it executable: curl -kLO https://raw.githubusercontent.com/gridaphobe/CRL/ET_2022_11/GetComponents chmod a+x GetComponents On the next step, when running the command: ./GetComponents --parallel https://bitbucket.org/einsteintoolkit/manifest/raw/ET_2022_11/einsteintoolk… I get the following error and the process stops. "Can't call method "enqueue" on an undefined value at ./GetComponents line 1040." Do you have any insight on this? Best regards, Panagiotis ------------------------------------------------------------- Dr. Panagiotis Iosif postdoctoral researcher email: piosif(a)auth.gr; paniosif(a)gmail.com Section of Astrophysics, Astronomy and Mechanics Department of Physics Aristotle University of Thessaloniki 54124, Thessaloniki, Greece -------------------------------------------------------------

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meeting minutes for 2023-05-11
by Roland Haas 11 May '23

11 May '23

Present: Roland, Peter, Zach, Jose, Keith, Sam, Steve, Leo, Johnny, Yosef ET release ========== * release managers will send out draft of release statement later today * 2 weeks to release, target date May 24th * no issues with remaining inclusions * Steve is asking for images to put on the release mug, Zach suggested looking for kuibit based images * Leo is not able to assign tickets on https://trac.einsteintoolkit.org, Roland will check if there is something off with his account compared to Sam, who can ET testsuite status =================== * Peter is compiling on db1 to run TOV star * Steve will run BBH * Roland has run BNS * Johnny has run Poisson equation, will update website * Multipatch scalar wave assigned to Jake (UTAusin), runs finished, working on uploading to website * Leo reduced runtime of NRPyEllipticET test and will push change Unanswered questions ==================== * Steve will contact Shamin Haque about issues on clusters * Zach suggested creating a "unanswered tickets" lists similar to unanswered questions. Roland says this should be possible with some Python code and REST API calls to bitbucket's API. Estimated work load is about 2hrs if one knows the API. * Leo will look into Tmunu ticket in Baikal https://bitbucket.org/einsteintoolkit/tickets/issues/2497/illinoisgrmhd-is-… * WENO coefficient ticket still up for review, will be done after release https://bitbucket.org/einsteintoolkit/tickets/issues/2647/incorrect-weno-co… ET summer school ================ * Registration is open, email is out * Travel support can be requested at registration time CarpetX ======= * Sam is asking about existing interpolation / deaverage code in CarpetX to from cell centered averages to samples or averages at cells, faces, vertices. Roland suggests that the prolongation operators could be used for some of this, but that most code so far seems to roll their own AEILocalInterp ============== * Roland and Zach looked into C auto-generating Maple code * Roland could re-run the scripts and re-generate the code * results looks identical up to renaming of variables and pass the current ET testsuites ** Roland noticed that 3d generation log files are missing, will check what is going on * Peter has 5th order Hermite codes for field to particle interpolation in GR-SPH code, will discuss with Zach if that can be made available * coeffs derived in MMA and code exported to Fortran from there Next chair: Sam Next minute taker: Steve 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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Compiling failure on Mac with Apple Silicon M2 chip
by Yufeng Luo 10 May '23

10 May '23

Hello, I was trying to compile ET_2022_11 on a M2 Macbook Pro machine, but I got an error. I attached my compilation output below. It seems that the general configuration script correctly recognized my machine with a aarch64 (line 50) processor, but when compiling openSSL thorn (line 2933) the compilation script incorrectly marked the machine as i686. My understanding is that apple silicon (M1) is now supported in the newest version of ET (2022 11). Since M1 and M2 have the same ARMv8 architecture, I was wondering if there is an error in openSSL thorn? Thank you. Best, Yufeng

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Today (Mon): NR community call at 9am Pacific / noon NYC / 5pm London / 6pm Berlin
by Nils Vu 07 May '23

07 May '23

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meeting minutes for 2023-05-04
by Roland Haas 04 May '23

04 May '23

Present: Roland, Peter, Zach, Gabriele, Leo, Sam ET release timeline =================== * release date will be May 24th * Leo and Sam are sending emails to the contributors and drafting the release announcement * inclusions are reviewed ok kuibit ====== * Gabriele finds that installing kuibit using pip is getting harder and coming up with generic instructions is difficult * Ubuntu 23.04 (and other new versions) prohibit use of `pip install --user` and strongly favor virtualenv * Also link required package instructions as described in https://bitbucket.org/einsteintoolkit/tickets/issues/2724/update-download-p… Testsuite status ================ * no updates * test need to be re-run after fix to Fortran AliasedFunctions code * Peter will re-run on sunrise once release branches are in place * Roland has updated tests for Frontera and will re-run other tests * Anuj will re-run tests on thornyflat Gallery tests ============= BBH: no update BNS: Roland updated example TOV: Peter will run Multipatch: no update Poisson: no volunteer, Leo and Sam to look for people Gabriele suggested to have more detailed change list listing bugs more explicitly * Zach suggests using the script that shows changes for review by the release managers * Gabriele suggests providing a link to this information, also to resolved tickets * link to revolved and closed tickets sorted by date: https://bitbucket.org/einsteintoolkit/tickets/issues?status=resolved&status… questions ========= * Gabriele mentioned large number of warning messages from Cactus when trying to run lean_public with presync_warn flags https://bitbucket.org/einsteintoolkit/tickets/issues/2723/no-boundary-condi… ** there was some more generic discussion about how presync handles it various options * Leo brought up about HydroBaseX for CarpetX where currently there is no direct way to handle staggered variables ** this is more generic problem with variables that may sensibly be defined or used with different sorts of staggering. Current HydroBase assumes a single global choice is good enough for all codes that interface and that translation between representations is almost error free. emails ====== * existing emails by Shamim Haque, in conversation with Steve, ask Steve if is continuing the converstation tickets ======= * https://bitbucket.org/einsteintoolkit/tickets/issues/2722/getcomponents-pla… is needed for release, Roland will ask Steve chair next week: Zach minutes next week: Steve 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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