Users September 2021

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14 participants
24 discussions

ET and recent Intel compilers
by Hee Il Kim 21 Oct '21

21 Oct '21

Hi, I've encountered various issues from recent Intel compilers. Except for some versions having header file issues, I could manage to build ET executables but actual run stalled at various steps depending on the compiler versions. For example, Case 1. Before initial data generation ... INFO (CarpetRegrid2): Enforcing grid structure properties, iteration 1 INFO (CarpetRegrid2): Enforcing grid structure properties, iteration 0 INFO (CarpetRegrid2): Enforcing grid structure properties, iteration 1 Case 2. During reading Lorene data (e.g., while reading resu.d) Case 3. Evolution started with normal IDs but NaNs produced from the next evolution step. I've encountered the issues in various combinations of OneAPI/IntelMPI and OneAPI/OpenMPI on Centos8 (gcc-8.3.1) machines. There had been no issues for OpenMPI/GCC. But I've just found Case 1 is produced on an old machine with devtoolset gcc-6.3.1/openmpi-1.8.4. You have any hints for the issue? Thanks in advance. Hee Il

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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

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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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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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 27 Sep '21

27 Sep '21

Please update the Wiki with agenda items for Thursday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --The Maintainers

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unequal mass binaries with PRThorns GRHydro
by Hamilton, Maria 23 Sep '21

23 Sep '21

Hello, I have an error when simulating unequal mass binaries with PRThorns GRHydro for certain combinations of EOS and mass ratios. Using the same parameter file for an equal mass binary case, seems to work with various EOSs, and for certain EOSs, even for unequal mass. Any inkling of why this might happen? I tried with both ppm and weno recon_method, and with higher refinement. What do you think would help? Maria ____________ WARNING level 1 from host compute-14.marshall.local process 16 while executing schedule bin CCTK_POSTSTEP, routine GRHydro::check_GRHydro_C2P_failed in thorn GRHydro, file GRHydro_Con2Prim.F90:1781: -> ; stopping the code. _______________________ Maria C. Babiuc Hamilton, Ph.D. Professor, Department of Physics College of Science, Marshall University, 1 John Marshall Drive, Huntington, WV, 25755 Room S 257, Phone: (304)696-2754

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Meeting Minutes 2021-09-16
by Miguel Gracia 23 Sep '21

23 Sep '21

Present: Peter D., Miguel G., Steven B., Leonardo W., Gabriele B., Yosef Z., William G., Zach E. Chair: Peter D. Minutes: Miguel G. * SPEC benchmark contribution [SB]: No update * Next ET release: [SB]:No release action deadline coming soon, no update this time. * CarpetX [SB] Trying to make it run in 2D with one ghost point in z direction. [WG] Where is CarpetX?, [SB] CarpetX’s repo: https://bitbucket.org/eschnett/cactusamrex.git [SB] One can run a qc0 example. * Unanswered question on mailing list: Maria’s email about con2prim failure: need more information about the failure. [ZE] con2prim can fail if velocity too high when speed limit is not set. Numerical errors tend to trigger unphysical states that could produce failures. too low resolution will increase failures. Konrad’s email. nobody in the call knows about THC_Core Thorn. [ZE] Unsupported thorns should be referred directly to the thorn’s author. Hee II Kim’s email. [SB] is trying to reproduce the described crash. Will answer to Hee II Kim when finished. Other questions: no questions * Open tickets No updates * Tickets ready to review [WG] proposed a group effort to clean all the tickets that are not difficult to solve. will be discuss in the next meeting. Next call: September 30th Chair: Yosef Z. Minutes: William G. — end of the call

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Einstein Toolkit Meeting Reminder
by users＠einsteintoolkit.org 22 Sep '21

22 Sep '21

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 20 Sep '21

20 Sep '21

Please update the Wiki with agenda items for Thursday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --The Maintainers

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Users September 2021