Minutes for the Einstein Toolkit Meeting, 20251002. https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call 9am CDT Thursdays

Present: Peter D, Steve B, Deborah F, Roland H, Lucas S, Nikolai W, Zach E, Keith D. Chair: Peter D Minutes: Keith D

* BBH gallery example – Peter finished his part. Zach will follow up.

* Github <-- Bitbucket (Cactus Code) Roland will contact the owner of the location Cactuscode on Github to see if we can obtain it to transfer CC from Bitbucket to Github.

* ETK has made progress in becoming part of the SPEC Benchmark. Roland and Steve.

* GW150914 Roland is to run again.

* An issue with 56 threads being specified, from Iosif. Roland will respond.

* Open tickets sorted https://bitbucket.org/einsteintoolkit/tickets/issues?status=open&status=...

#2866 Problem while building the ET on MN5: OpenCL Roland “If you don’t need OpenCL I’d disable ExternalLibraries/OpenCL”

#2889 Outflow uses incorrect ‘sf centroid’ There is a pull request. It is ready for review. Roland.

#2597 Simfactory on Bridges2 No activity. Its from 2022 so it should be closed.

#2888 Race condition writing properties.ini in simfactory No activity.

#127 Restarts should have hard link to executable No activity.

#1721 Simfactory’s test mechanism should use softlinks instead of rsync No activity.

#1321 Collisions in executable cache directory No activity.

#1798 add backtrace script to cactus utils No activity.

#2706 Update default TwoPunctures partameters, or at least default parameters in BBH gallery example Zach is working on it.

#2886 support cell centered directions when calling Fortran scheduled functions No activity.

#2874 NRPyElliptic lacks regeneration instructions Zach is making progress.

#2858 SF files for MN5 (was: Compiling Carpet X: Issues with PDESolvers) Not resolved.

#2882 Running BBH with CarpetX with CPUs: High memory consumption and low performance ?

#1847 FFTW3 fortran interface not working for system installation ?

#2878 CarpetX: Add multipatch output support to Silo Waiting for review, Roland.

#2764 PUGH tries to free memory not allocated by malloc Requires changes, Roland.

#2848 updates to FLRWSolver No activity.

#963 Improve McLachlan accuracy Peter is working on it.

#1370 Provide a framework for simulation metadata ?

#2877 ET_BHaHAHA Features Ticket Reminder for Zach. Work in progress. Needs formal review by Peter.

#2855 Noise:X Improve noise generation in CarpetX No update.

#2862 Update ‘SpacetimeX/Z4c’ robust stability parameter file. Needs review.

#266 Peter to look at.

#2364 Roland to look at closing.

#2846 Steve to look at.

#2814 Lucas to look at.

#2179 Roland, needs review.

#2786 Roland did work. Steve to review.

New Item

From Roland.

Volume integrals use a spherical surface.

The issue is complicated. Zach and Roland to discuss.

Next Meeting, Thursday, 9 October 2025. https://docs.einsteintoolkit.org/et-docs/Meeting_agenda