Attending: Maria HB, Bill G, Roland H, Yosef Z, Miguel GL, Peter D, Steve B, Zach E
Chair: Maria HB Minutes: Bill G
* transition cactuscode.org to github pages [RH, SB]
Steve, process is Steve talking to IT support and also a couple of issues, referring an LSU domain to an external site, and mailing lists running off the old server. So in process, but keep reminding Steve. Roland, good if done for next release. Steve, it should be done by then, everything is fine, a guess is done in two weeks.
* upcoming release planning (5.5 weeks to go, 3 weeks to feature freeze, 3 weeks to have everything reviewed) [RH]
** Gallery test runners search Release Details [RH] https://docs.einsteintoolkit.org/et-docs/Release_Details
See the release dates and the timeline by Steve. Feature freeze on the 12th of Nov. Naming for next week, but we should think about it. See list in Release Details, under Tools/Links.
Ask around for students to run these examples, and you get your name on the ET release.
*** Single, stable neutron star https://bitbucket.org/einsteintoolkit/tickets/issues/2175/test-single-stable...
Miguel G.L. will do it.
*** Multi Patch Scalar Wave Equation https://bitbucket.org/einsteintoolkit/tickets/issues/2174/test-multi-patch-s...
Need someone.
*** Poisson equation https://bitbucket.org/einsteintoolkit/tickets/issues/2173/test-poisson-equat...
Bill G for poisson solver.
*** Binary neutron star https://bitbucket.org/einsteintoolkit/tickets/issues/2176/test-binary-neutro...
Need someone.
*** Binary black hole GW150914 https://bitbucket.org/einsteintoolkit/tickets/issues/2172/test-binary-black-...
Steve, would like to convert to a singularity image to run; he will think about it.
** release testsuite status http://einsteintoolkit.org/testsuite_results/index.php
** NRPyPN: ticket 2417. [PD, ZE] https://nbviewer.jupyter.org/github/zachetienne/nrpytutorial/blob/master/NRP... https://bitbucket.org/einsteintoolkit/tickets/issues/2417
Zach, Zach is responding to Roland and Zach has started addressing the primary issue, making it a stand-alone that could go in an arrangements directory and run the notebooks from that directory. Roland modified the GetComponents to make this work. Should have an install directions file. Zach recommends a virtual environment especially to get the latest version of sympy. So good to know the minimum version (of Sympy say) that works. Earliest version of sympy which works is 1.2 which is old, July 2018. Roland, procedure for adoption is that it needs to be ready for release, we announce, and then there is a call for the vote. Likely vote in two weeks.
* ICERM Fall 2020 tutorials post-action review [RH]
** NRPy+ (Zach)
** Writing your own Einstein Tookit thorns (Steve)
Zach for NRPY and Steve for ETK. Steve, the LSU virtual machines worked well and putting a Cactus tarball in each users directory was a help, sped up the compile process. Would like Zach's tutorials in the same place for ease of use of the student. Zach, it should be possible. Steve, looking at Spack, Spack based dockers to check ET versus different Linux versions. Could also test various versions of MPI, etc, etc.
spack = package manager for HPCs, and you can handle packages in your user space https://computing.llnl.gov/projects/spack-hpc-package-manager
unanswered question on mailing list / open tickets sorted by update time / tickets ready for review
* unanswered
https://www.einsteintoolkit.org/tools/unanswered.php
"Settings procs" and "Poisson equation" have responses and paths forward. "TOV Solver" we think is robust but changes equilibrium when rho_central is changed. Peter will respond. "Cartoon2D and McLachlan" Roland has responded to it.
* open tickets
https://bitbucket.org/einsteintoolkit/tickets/issues?status=open&status=...
Many of the tickets relate to the new release.
Cactus math work-arounds breaking CarpetX, cannot be changed by next release.
GCC discussion and see 4.8 on many platforms. With the GCC 10 fixes, it is broken on 4.8 and works on 4.9. Roland will have gcc 4.8 in the configure test and have it fail if the GCC 10 fixes are not successful there. GCC 4.8 nominally supports C++11.
* review tickets
https://bitbucket.org/einsteintoolkit/tickets/issues?status=new&status=o...
#2288, Lean changes looked at by Miguel Zilhao, would like it to go in before the release. And Zach looking at Baikal.
#2386, CCTK_Loop3_INT, is also something that Zilhao wants, but Lean fix is more important.
* Next week chair is Zach and minute taker is Maria.