Present: Zach, Keith, Roland, Steve, Leo, Peter
SPECv8 contribution ===================
* no specific news, progressing
ET release coordinator search =============================
* had planned to include CarpetX and AsterX * no documentation exists for it yet * Roland estimates that CarpetX is not closer to inclusion ready than 6 months ago. CarpetX reviewers * paired coordinator approach was useful for Leo in the 2023_05 release * will pick this up again next week due to small number of participants
Unanswered question ===================
* https://lists.einsteintoolkit.org/pipermail/users/2023-May/008930.html Roland will forward similar answer about grid structure consistency
* https://lists.einsteintoolkit.org/pipermail/users/2023-May/008935.html Roland will respond suggesting that a full C++11 stack is required
Error message shown about missing http://lists.einsteintoolkit.org/pipermail/users/2023-June/date.html is likely due there not yet being a posting to the mailing list for June and the script cannot distinguish "no posting yet" from "server is down or cannot access the file".
Galley examples ===============
* Steve will update the BBH example (https://www.einsteintoolkit.org/gallery/bbh/index.html) ** Zach mentioned ticket https://bitbucket.org/einsteintoolkit/tickets/issues/2706/increase-twopunctu... * Peter had added convergence plot to TOV example (https://www.einsteintoolkit.org/gallery/ns/index.html). Convergence order is between 1 and 2.
Zach brought up the issue that gallery examples are typically very low resolution and one often has to increase resolution significantly observed for example good convergence. This typically clashes with the desire to keep the gallery examples small enough so that they can be easily run.
Zach noted that the TOV example is not featured in the cycler on the main page. Steve and Zach had a discussion about how one could create a more visually interesting image using VisIt.
Steve brought up work on openPMD reader in Python. Roland will work with summer student in summer to add mesh refined openPMD support to VisIt. Will meet with Steve and (NCSA) local visualization expert.
Updated tickets ===============
* https://bitbucket.org/einsteintoolkit/tickets/issues/2734/consider-adding-if... ** Steve mentioned current situation in CarpetX where storage is always one. ** Steve considers that he may be able to add auto-allocation of storage to the WRITE statements, READ would result in invalid data to read from
* https://bitbucket.org/einsteintoolkit/tickets/issues/2733/twopunctures-conta... ** we should fix this
Open topics ===========
* Clang and Flang support. Zach mentioned benchmarks that have clang outperform gcc, asks about support for clang and flang in simfactory and the Einstein Toolkit. ** Roland says no clang support in the past due to lack of Fortran compiler. Steve and Zach point out that gfortran can be used and the there is now also flang. ** Roland mentions that there are "old" flang based on PGI and "new" flang based on llvm. Also AMD compiler and Cray compiler on Crusher / Frontier are llvm based, so are modern version of the Intel compiler suite. ** currently have not knowledge about clang / flang in the Linux known-architecture files, only in Darwin files for (older) clang
Next Chair: Steve Next Minutes Taker: Leo
Yours, Roland