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New user discussion group
by Nick Olsen 08 Oct '21

08 Oct '21

Hello everyone I am a master's student interested in starting a discussion group for relatively new users of the Einstein Toolkit, aimed at new master's and PhD students to discuss things like small problems we've had and how we fixed them, resources we've found, and tools we use alongside the ET. The intent is not purely troubleshooting and problems, but discussion so that we can work together to become proficient in using ET. If you are interested in this you can send me an email and I will set up a place to chat. Thank you for your time, Nicholas Olsen, University of Waterloo

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Unsuscribe
by Reyes Manuel Garc?a G. 07 Oct '21

07 Oct '21

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Meeting minutes for 2021-10-7
by Atul Kedia 07 Oct '21

07 Oct '21

Present: Bill G, Peter D, Miguel G, Leo RW, Roland H, Atul K, Zach E, Yosef Z, Wolgang K, Steve B Chair: Roland, Minutes: Atul * next ET release [SB, YZ, RH] https://docs.einsteintoolkit.org/et- docs/Release_Details Steve: no updates. Running Gallery examples? 2 of Helvi’s students volunteered. Volunteers for Gallery examples: * Poisson equation Miguel G * TOV Peter D * Multipatch Bill G * BBH Helvi W’s student(s) * BNS Helvi W’s student(s) ** status update on include candidates: *** RePrimAnd: https://github.com/wokast/RePrimAnd Roland: Compiled it but not any further. Looked for documentation.. Would help if there is a makefile. Wolfgang: Will provide a bunch of files that need to compile. The libraries needed are HDF5, GSL and Boost. Compiled with Python or not could make a difference. Roland: Can also add it as an ‘enable test’ option in the config file. Leo: was able to select a few files from Boost to compile RePrimAnd. Wolfgang: Boost is evolving and so that method may not be futureproof. Steve: It is being used for CarpetX Zach: For design reasons, recommends not adding external dependencies. Easier to maintain as one version is fixed. Leo: Just need to copy a couple of header files Wolfgang: Will have to look if it is doable and still futureproof. Yosef: Since Reprimand is evolving, would like to have the latest version of reprimand in the future as well. Isn’t boost installed already in machines? Yosef: New users may not need RePrimAnd in the beginning. Wolfgang: Reprimand only needs boost for unit tests. Yosef: If CarpetX is the future of ET, then Boost is the future. Wolfang: For release add reprimand with boost dependency? Roland: Doable.. Included but not necessarily. Zach: The Default ET steps download and compile? Roland: Nope.. like LORENE2 So it will be included with ET but not compiled by default. Wolfgang: Documentation html or la.tex file? Could only have a dummy documentation.tex with html link. *** FLRWSolver : No updates. *** Kuibit: https://sbozzolo.github.io/kuibit/ : Yosef: No updates. Deadline : Nov- 12 Check documentation / it works well with the ET. https://www.einsteintoolkit.org/contribute.html has the "quality" requirements. BBH gallery example has instructions for using Kuibit. Yosef asks if the data is there for the gallery. Steve, yes it is on the gallery website. Steve: Documentation within the code distributed is preferred. Yosef and Steve to meet for release coordination. * SPEC benchmark contribution [SB, RH] No updates * LORENE2 as default LORENE thorn in ET [RH] Any objection to this change? - None. So will be going forward with it. Nick Olson: Roland: New user’s discussion group. Should encourage and support. Bill: Can it be doable as an Issue on github? Roland: Can be done on gitter, but it has not been used widely. Will contact Nick on the mailing list. [https://www.einsteintoolkit.org/tools/unanswered.php unanswered question on mailing list] http://lists.einsteintoolkit.org/pipermail/users/2021- September/008187.html Hee Il Kim’s question, Steve is going to respond http://lists.einsteintoolkit.org/pipermail/users/2021- October/008221.html BH-NS binary: Asked for a par file for BH-NS? Konrad Topolski asked a similar same question. 15 July 2021. Miguel will respond. http://lists.einsteintoolkit.org/pipermail/users/2021- October/008231.html Krishiv: Selfforce 1D question. Using it on the tutorial server.. The data file is missing. Add URL to the data file in the notebook. Steve: Initial data probably not linked anymore. Peter and Steve will work together to fix this. [https: //bitbucket.org/einsteintoolkit/tickets/issues?status=open&status=new&sort=- updated_on open tickets sorted by update time] Roland pinged older thorns. Documentation for WVU thorns. Zach will be adding documentation for the few that are missing one before the next release. [https: //bitbucket.org/einsteintoolkit/tickets/issues?status=new&status=open&sort=- updated_on&q=Please%20review tickets ready for review] Nothing new Future chairs and Minute takers Oct 14: Chair : Peter D, Minutes: Bill Best wishes, Atul Kedia University of Notre Dame

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fatal error: gsl/gsl_sf_ellint.h: No such file or directory
by Krishiv Bhatia 07 Oct '21

07 Oct '21

Hello All, Appreciate if somebody can help out with this error: $ scons scons: Reading SConscript files ... scons: done reading SConscript files. scons: Building targets ... Compiling Build/EffSource/ScalarSchwarzschild/EffectiveSource/EffectiveSource-acceleration.o Src/EffSource/ScalarSchwarzschild/EffectiveSource/EffectiveSource-acceleration.cc:16:10: fatal error: gsl/gsl_sf_ellint.h: No such file or directory 16 | #include <gsl/gsl_sf_ellint.h> | ^~~~~~~~~~~~~~~~~~~~~ compilation terminated. scons: *** [Build/EffSource/ScalarSchwarzschild/EffectiveSource/EffectiveSource-acceleration.o] Error 1 scons: building terminated because of errors. the gsl library is already installed in my mac. I installed it both using MacPorts and brew $ ls /usr/local/Cellar/gsl/2.7/lib/ libgsl.25.dylib libgsl.a libgsl.dylib libgslcblas.0.dylib libgslcblas.a libgslcblas.dylib pkgconfig $ ls /opt/local/lib/*gsl* /opt/local/lib/libgsl.25.dylib /opt/local/lib/libgsl.dylib /opt/local/lib/libgslcblas.a /opt/local/lib/libgsl.a /opt/local/lib/libgslcblas.0.dylib /opt/local/lib/libgslcblas.dylib

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 06 Oct '21

06 Oct '21

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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Einstein toolkit with Sun Grid Engine
by Chris Stevens 06 Oct '21

06 Oct '21

Hi everyone, I have set up the Einstein toolkit on a local cluster of 20 nodes with the SGE scheduler. I have not seen any examples of this scheduler being used with the Einstein toolkit. I have managed to get it working; however it seems if I ask for a certain number of slots that requires more than one node, it correctly allocates these, however all processes and threads are run on the one node and is oversubscribed. My question is whether anybody has used SGE with the Einstein toolkit and if this is a good thing or not? If it is possible, I can send more details if there are people willing to help solve this inter-node communication problem. Thanks in advance, Chris [cid:29d54967-59c8-486e-adea-80af7ce2cc49] [cid:55ebbbb5-1e12-45a2-8d51-206c70460c36] Dr Chris Stevens Lecturer in Applied Mathematics Rm 602, Jack Erskine building School of Mathematics and Statistics T: +64 3 369 0396 (Internal 90396) University of Canterbury | Te Whare Wānanga o Waitaha Private Bag 4800, Christchurch 8140, New Zealand http://www.chrisdoesmaths.com<http://www.chrisdoesmaths.com/> Director SCRI Ltd http://www.scri.co.nz<http://www.scri.co.nz/>

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Meeting Minutes 2021-09-30
by Gabella, William E 30 Sep '21

30 Sep '21

Present: Yosef Z, Bill G, Peter D, Miguel G, Leo RW, Roland H, Atul K, Helvi W, Gabriele B Chair: Yosef Z, Minutes: Bill G * next ET Release [SB, YZ, RH] https://docs.einsteintoolkit.org/et-docs/Release_Details [Steve is not present.] No specific updates. Roland, we do need to "poke" the various items. And look for gallery testers. Yosef, Kuibit reviewer has no news. Roland, RePriMand reviewer also no news. * "hack-a-thon" to clean up tickets, documentation, web pages Yosef, Put on the mailing list for scheduling. Roland, Go through the tickets and look for easier or harder tickets and go from there. Go through and fix warnings. Roland, would make a list; Ian hinder tried to classify as urgent and not so urgent. Code authors could go through the tickets. Some older components in the toolkit might not have good documentation. [https://www.einsteintoolkit.org/tools/unanswered.php unanswered question on mailing list] Aug 13, THC thorn. Roland, we have kept hands off because either a THC or Kadath question, or both, not in the toolkit. So not for us. Sep 1, ET and recent intel compilers. Steve seems to be handling this (last exchange 25 Aug), but we should still document the problem with the compiler and if one or other is the correct one. Intel compilers on Bayou system at LSU. Peter has access to intel 21 machines and can try something, would test suite work? Likely need a BNS parameter file. Yosef, have older intel at RIT cluster. Atul, there is the BNS gallery example to use. [https://bitbucket.org/einsteintoolkit/tickets/issues?status=open&status=new… open tickets sorted by update time] No discussion...lots of them. [https://bitbucket.org/einsteintoolkit/tickets/issues?status=new&status=open… tickets ready for review] #963, improve McLachlan accuracy. Peter will take a look at this. #2568, Roland can make the messages more clear, or document. #2570, update MPI tarball. Roland two things changed here, update the tarball, 4.0.1 current version fails to compile on USX (infiniband, and low level support UCT), 4.0.6 works with both versions. This happened on Deep Bayou to Roland when installing own MPI. Other change in the Pull Request, make MPI link against all libraries that HWLOC uses, udev (?) and NUMA. Usually works on systems with dynamic linking but on static it can fail. #2563, isfinite() supersedes finite(). Helvi, a problem on the new Macs with the M1 chip. Roland will apply it today unless someone seriously objects. #332, Cactus and environment vars. No discussion. #2364, avoid HDF5 files opening many times. It is an enhancement. Roland, put this in for Blue Waters where filesystem was slow. Ticket is lingering in case anyone wants it/needs it. * Chair and minute taker Chair, Roland Minutes, Atul * any other business Gabriele B, hack-a-thon suggestion, would be useful to have more param files that cover more cases; there are so many features in the ET. Did not find them earlier because no param files showing them. Helvi, keep in mind they should be consistent on the web site or wherever we keep them. Roland, more examples of param files, we might want to turn some into gallery examples to keep them up-to-date, keep them from "aging out" and no longer working with the toolkit. Bill, we might also considered a place that is not so well curated, a "community contributed" site, where users can upload parameters files, results, and some comments on when and how it ran. A user at your own risk kind of site. Seems we would get many more param files, but there would be overlaps, lack of quality control, etc, etc. Helvi W, been asked to co-organize a workshop for numerical relativity in Aug 2022, with SpEC, with David Radice, Leo Stein, probably at Brown university. Mix of few days of hack-a-thon/tutorials, discussions, and working together. It is an ICERM program, another three weeks for computational gravity during the semester. Recall, ICERM fall 2020 was about Computational Relativity, https://icerm.brown.edu/programs/sp-f20/ . -- ============================== William Gabella Research Assistant Professor Department of Physics and Astronomy Nashville, TN USA (o) 615-343-2713

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 29 Sep '21

29 Sep '21

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Fwd: [nr-community-call] Next NR community call: Oct 4th
by Helvi Witek 29 Sep '21

29 Sep '21

FYI --------------------------------------------- Dr. Helvi Witek Assistant Professor Department of Physics University of Illinois at Urbana-Champaign 247 Loomis Lab 1110 W Green St Urbana, IL 61801 --------------------------------------------- -------- Forwarded Message -------- Subject: [nr-community-call] Next NR community call: Oct 4th Date: Wed, 29 Sep 2021 23:06:55 +0200 From: Nils Fischer <nils.fischer(a)black-holes.org> To: nr-community-call(a)black-holes.org Dear Numerical Relativists, Our next NR community call will be on *October 4th*. Our speakers will be *Erik Schnetter (Perimeter / ETK)* and *Giuseppe Ficarra (King's College London / Canuda ETK)*.**You can find the schedule in the wiki: https://github.com/sxs-collaboration/nr-community-call/wiki <https://urldefense.com/v3/__https://github.com/sxs-collaboration/nr-communi…> - Feel free to circulate this information within the NR community. - Please subscribe to our mailing list <https://urldefense.com/v3/__https://groups.google.com/u/1/a/black-holes.org…> to receive info on the community calls in the future (or send a short message to nr-community-call+subscribe(a)black-holes.org <mailto:nr-community-call+subscribe@black-holes.org> to subscribe) and join our Slack <https://urldefense.com/v3/__https://join.slack.com/t/generalrelativity/shar…> for discussions (channel: #nr-community-call <https://urldefense.com/v3/__https://generalrelativity.slack.com/archives/C0…>). - Please sign up for a slot <https://urldefense.com/v3/__https://docs.google.com/forms/d/e/1FAIpQLSfoCnn…> in the schedule to speak at one of the community calls: https://github.com/sxs-collaboration/nr-community-call/wiki <https://urldefense.com/v3/__https://github.com/sxs-collaboration/nr-communi…> Best, Nils -- You received this message because you are subscribed to the Google Groups "NR community call" group. To unsubscribe from this group and stop receiving emails from it, send an email to nr-community-call+unsubscribe(a)black-holes.org <mailto:nr-community-call+unsubscribe@black-holes.org>.

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Fwd: [Abstract Deadline!!] Midwest Relativity Meeting
by Helvi Witek 28 Sep '21

28 Sep '21

Dear all, please join us for the Midwest Relativity Meeting hosted by UIUC in hybrid mode. The abstract submission deadline is this week on Friday, 1 October 2021. Best wishes Helvi --------------------------------------------- Dr. Helvi Witek Assistant Professor Department of Physics University of Illinois at Urbana-Champaign 247 Loomis Lab 1110 W Green St Urbana, IL 61801 --------------------------------------------- -------- Forwarded Message -------- Subject: [Abstract Deadline!!] Midwest Relativity Meeting Date: Tue, 28 Sep 2021 11:08:52 -0500 From: Yunes, Nicolas <nyunes(a)illinois.edu> To: Yunes, Nicolas <nyunes(a)illinois.edu> CC: Gammie, Charles Forbes <gammie(a)illinois.edu>, Witek, Helvi <hwitek(a)illinois.edu>, Shapiro, Stuart Louis <slshapir(a)illinois.edu>, Wiltfong, Rebecca <rwiltfon(a)illinois.edu>, Koebbe, Brandy J <bkoebbe(a)illinois.edu> Dear all, I hope this email finds you well. I’m contacting you to remind you that *the deadline for abstract submission to the midwest relativity meeting is this Friday (October 1st). *We would like to encourage all of you, but especially students, to submit an abstract as soon as possible. You can do so by following the following link: https://midwest-relativity-meeting-2021.physics.illinois.edu/registration <https://midwest-relativity-meeting-2021.physics.illinois.edu/registration> Please notice that registering for the meeting is not enough to give a talk; you also have to submit an abstract through the link I provided above. The meeting will be held in hybrid format. We encourage you to attend in person, but if you prefer to do so remotely, you will be able to do so via Zoom. If you submit an abstract, you will be able to give a talk either in person or via Zoom. Please feel free to pass this message along to any colleagues you think may be interested in this meeting. I look forward to seeing you all in November! With kind regards, n. (for the SOC) > On Jul 7, 2021, at 12:01, Yunes, Nicolas <nyunes(a)illinois.edu > <mailto:nyunes@illinois.edu>> wrote: > > Dear all, > > I hope this email finds you well. I am contacting you to let you know > about the next Midwest Relativity Meeting, which will be held at the > University of Illinois Urbana-Champaign from Thursday November 11th to > Saturday November 13th, 2021. We encourage you to attend the meeting > in person, but for those of you that cannot attend, we hope to provide > a Zoom link. > > Registration is now open (please click > https://midwest-relativity-meeting-2021.physics.illinois.edu/registration > <https://midwest-relativity-meeting-2021.physics.illinois.edu/registration> > and register now!) and it will remain open until November 1st. You > will not be able to access the Zoom link or give a talk unless you > register. > > A block of hotel rooms has been separated for you all and a special > rate has been negotiated. You can access the hotel registration > through this link: https://midwest-relativity-meeting- > <https://midwest-relativity-meeting->2021.physics.illinois.edu/travel-lodging-directions > <http://2021.physics.illinois.edu/travel-lodging-directions>. In order > to access this special rate, you must book your hotel before the 20th > October, 2021, so go ahead and book now! > > You can find other information about the meeting in the meeting’s > website (https://midwest-relativity-meeting-2021.physics.illinois.edu > <https://midwest-relativity-meeting-2021.physics.illinois.edu>), > including a list of participants and a program which is currently > under construction. > > I hope to see you all at UIUC soon! > > With kind regards, > > n. (for the scientific organizing committee) > > ---------------------------------------------------------------------------------------------------------- > | NICOLAS YUNES, | > | Founding Director of the | > | Illinois Center for Advanced Studies of the Universe,| > | Professor of Physics,| > | Department of Physics,| > | University of Illinois Urbana-Champaign,| > | 1110 W Green St, 249 Loomis Laboratory, Tel: (814) 883-2069| > | Urbana, IL 61801Email: nyunes(a)illinois.edu <mailto:nyunes@illinois.edu>| > ---------------------------------------------------------------------------------------------------------- > ---------------------------------------------------------------------------------------------------------- | NICOLAS YUNES, | | Founding Director of the | | Illinois Center for Advanced Studies of the Universe,| | Professor of Physics,| | Department of Physics,| | University of Illinois Urbana-Champaign,| | 1110 W Green St, 249 Loomis Laboratory, Tel: (814) 883-2069| | Urbana, IL 61801Email: nyunes(a)illinois.edu <mailto:nyunes@illinois.edu>| ----------------------------------------------------------------------------------------------------------

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