Users October 2023

users@lists.einsteintoolkit.org

17 participants
25 discussions

Help with Cactus Tutorial (updating fuka and building toolkit)
by Delaney Farrell 07 Nov '23

07 Nov '23

Hi, I recently was granted access to a tutorial account but am having difficulty running the Cactus tutorial notebook (account linked to this email, username dfarrell). The first cell to encounter an error runs the command ./GetComponents, which has the error: Warning: Could not update fuka. Could not stash local changes. Error message was 'error: open("codes/FUKAv1_Solvers/BBH/compile"): Permission denied fatal: Unable to process path codes/FUKAv1_Solvers/BBH/compile Cannot save the current worktree state >From there, I'm unable to build the toolkit, resulting in errors like: CST error in /home/dfarrell/Cactus/lib/sbin/CST (at 319) -> Missing thorn WVUThorns_Diagnostics/VolumeIntegrals_vacuum ------------------------------------------------------ make[1]: *** [/home/dfarrell/Cactus/lib/make/make.configuration:213: /home/dfarrell/Cactus/configs/sim/config-data/make.thornlist] Error 1 make: *** [Makefile:264: sim] Error 2 Best, Delaney

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request for assistance
by liuxiang＠hken.phys.nagoya-u.ac.jp 07 Nov '23

07 Nov '23

Dear Einstein Toolkit developers,<br/><br/>My name is Liu and I am a student from Nagoya University. I am now learning to use ET to do some simulations. This time I am trying to reproduce this one:<br/><a href="https://einsteintoolkit.org/gallery/bns/index.html">https://einsteintoolkit.org/gallery/bns/index.html</a><br/>which is a simulation of binary neutron stars.<br/><br/>During execution, I noticed this segmentation fault here when creating the simulation directory structure. (The screenshot file is attached to this email) This seems to be caused by a mismatch in memory settings. I've tried many debugging methods, but it still doesn't work.<br/><br/>Could you please help me identify the issue? I am using Ubuntu 22.04.3 and I have already built the Einstein Toolkit and run a sample simulation successfully.<br/><br/>Thank you for your sincerest help. <br/><br/>Best regards,<br/>Liu<br/><br/><br/><br/><br/><br/><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <div id="imail_signature" class="ntes-signature"> <a href="https://dashi.163.com/projects/signature-manager/detail/index.html?ftlId=1&…" style="display:block;background:#fff; max-width: 400px; _width: 400px;padding:15px 0 10px 0;text-decoration: none; outline:none;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:none !important;text-size-adjust:none !important;"> <table cellpadding="0" style='width: 100%; max-width: 100%; table-layout: fixed; border-collapse: collapse;color: #9b9ea1;font-size: 14px;line-height:1.3;-webkit-text-size-adjust:none !important;text-size-adjust:none !important;'> <tbody style="font-family: 'PingFang SC', 'Hiragino Sans GB','WenQuanYi Micro Hei', 'Microsoft Yahei', '微软雅黑', verdana !important; word-wrap:break-word; word-break:break-all;-webkit-text-size-adjust:none !important;text-size-adjust:none !important;"> <tr> <td width="38" style="padding:0; box-sizing: border-box; width: 38px;"> <img width="38" height="38" style="vertical-align:middle; width: 38px; height: 38px; border-radius:50%;" src="https://mail-online.nosdn.127.net/qiyelogo/defaultAvatar.png" /> </td> <td style='padding: 0 0 0 10px; color: #31353b;'> <div style="font-size: 16px;font-weight:bold; width:100%; white-space: nowrap; overflow:hidden;text-overflow: ellipsis;">liuxiang(a)hken.phys.nagoya-u.ac.jp</div> </td> </tr> <tr width="100%" style="font-size: 14px !important; width: 100%;"> <td colspan='2' style="padding:10px 0 0 0; font-size:14px !important; width: 100%;"> <div style="width: 100%;font-size: 14px !important;word-wrap:break-word;word-break:break-all;">邮箱：liuxiang(a)hken.phys.nagoya-u.ac.jp</div> </td> </tr> </tbody> </table> </a></div> </body> </html>

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meeting minutes for 2023-10-19
by Steven R. Brandt 06 Nov '23

06 Nov '23

Present: Steve, Peter, Sam, Zach, Leo Release Gallery Examples - TOV is Peter - BBH is Steve - Roland might have students for the other three? Tests - Need to be run - Clusters: Stampede2 isn't listed, and Delta and Anvil are added. - Release name: Lise Meitner https://en.wikipedia.org/wiki/Lise_Meitner - Autogenerated codes need to be regenerated, Leo will do it Mailing list moderation - Remind Roland to send Peter the password Unanswered question on the mailing list - Need answer for Enzo. Roland was going to answer? - Ticket 2749: Leo says he fixed it. - Ticket 2647: One of Zach's students is looking at that in Grail (sp) - Ticket 2609: Steve thinks he approved PR for Roland

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Agenda for Thursday's Meeting
by rhaas＠illinois.edu 30 Oct '23

30 Oct '23

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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Help with GW150914 Black Hole simulation
by Enzo Iubini 26 Oct '23

26 Oct '23

Greetings to all. I've been having some problems running the GW150914 simulation. When following the tutorial on " https://einsteintoolkit.org/gallery/bbh/cr.html " , I run into problems when running the parfile, specifically when running simfactory/bin/sim create-submit GW150914_28 --define N 28 --parfile par/GW150914/GW150914.rpar --procs 128 --walltime 24:00:00 This leads to the error Parameter file: /home/enzo/Cactus/par/GW150914/GW150914.rpar Skeleton Created Job directory: "/home/enzo/simulations/GW150914_28" Executable: "/home/enzo/Cactus/exe/cactus_sim" Option list: "/home/enzo/simulations/GW150914_28/SIMFACTORY/cfg/OptionList" Submit script: "/home/enzo/simulations/GW150914_28/SIMFACTORY/run/SubmitScript" Run script: "/home/enzo/simulations/GW150914_28/SIMFACTORY/run/RunScript" Parameter file: "/home/enzo/simulations/GW150914_28/SIMFACTORY/par/GW150914.rpar" Assigned restart id: 0 Error: Too many nodes specified: nodes=16 (maxnodes is 1) Aborting Simfactory. I am inclined to believe this is because I am running it on my own laptop, but I would nonetheless like to know exactly what does that error mean and if I can fix it somehow. I would really appreciate your help, thank you :) Best regards, Enzo

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Meeting Minutes for 2023-10-26
by Cupp, Samuel D. 26 Oct '23

26 Oct '23

Present: Sam, Peter, Roland, Steve, Zach, Leo GRHayLHDX test failing on Anvil due to segfault running on cpu a ticket would be helpful Testsuite shouldn't hang once a test fails Try removing GRHayLHDX and see if other tests fail Gallery runners: Deborah might do BBH, Steve will switch to BNS Request came in July for contribution to Springer book on GRMHD codes in ET, but it was never discussed People representing several codes (GR-Athena, SPHINCS BSSN, KHARMA) have agreed to contribute other sections to this book GRHydro (Steve?) and IllinoisGRMHD (Sam, Leo) would be in an ET section; should also discuss the spacetime codes (ML_BSSN, Baikal) Unanswered emails: Help with GW150914 Black Hole simulation Problem: vtk files are missing in simulation output Gallery example sets vtk output to behave the same as 3D output, but 3D output is disabled. Tickets: kuibit currently has an issue with the most recent version of tikzplotlib. It appears to be a bug with that package and not kuibit itself; Gabriele is working on a workaround #963 Peter implemented Zach's ML_BSSN improvements into SPHINCS BSSN, and it appears to have significant reduction of constraint violations (still running) May release should include this fix for both ML_BSSN and Baikal Samuel Cupp Postdoctoral Researcher Department of Physics University of Idaho

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Einstein Toolkit Meeting Reminder
by rhaas＠illinois.edu 25 Oct '23

25 Oct '23

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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Postdocs at RIT’s Center for Computational Relativity and Gravitation (CCRG)
by Manuela Campanelli 25 Oct '23

25 Oct '23

Dear Colleagues, The RIT’s Center for Computational Relativity and Gravitation (CCRG) is currently seeking to fill two postdoctoral research positions, including a senior postdoctoral fellowship in gravitational wave astronomy, as part of several NASA and NSF collaborative projects, including a new large NASA Theoretical and Computational Astrophysics Network grant. We are looking for highly qualified individuals interested in pursuing research in the fields of numerical relativity, theoretical and computational astrophysics, with an emphasis on general relativistic magnetohydrodynamics simulations of compact object mergers, such as accreting binary, massive, black holes and binary neutron stars. Accreting supermassive binary black holes are promising multi-messenger sources because they strongly emit both gravitational wave and electromagnetic radiation. It is the goal of our group to combine astrophysical knowledge about the environments of these sources with detailed physical simulations of gas flows in the immediate neighborhoods of these binaries as they proceed from large orbital separations through the merger proper and postmerger, and to predict the signals observers would see to identify them. Similarly, we are interested on pushing the frontiers in developing new high-performance algorithms that will allow us to perform long-term simulations neutron star coalescences from prior to merger through to the formation of disks and/or collapse of the merged remnant, the production of jets, and launching of outflows. The group is actively developing new numerical codes and tools (e.g. AsterX, SpacetimeX SphericalNR, Harm3D, PWMHD) as part of The Einstein Toolkit Consortium. The CCRG hosts a number of research scientists and students involved in gravitational wave data analysis from the LIGO Scientific Collaboration and the LISA consortium, and collaborate closely with the larger astrophysics group of observational astronomers gathering data from the Vera Rubin Observatory, Nanograv and JWST. Our researchers have access to some of the largest supercomputers in the world available at national computing centers such as the TACC’s Frontera Supercomputer and OLCF’ Frontiers exascale GPU-system. Additionally, the CCRG and RIT research computing provide our group exclusive access to several computer clusters with thousands of CPU cores and petabytes of storage. Applications should consist of a cover letter, a brief statement of research interests, a curriculum vitae including publication list, and at least three letters of recommendation. All materials should be sent electronically as soon as possible to: mxcsma[AT]rit.edu <http://rit.edu/> with a copy to ccrg-postdoc[AT]ccrg.rit.edu <http://ccrg.rit.edu/>. More information about the CCRG is available at http://ccrg.rit.edu/. And about Rochester at http://en.wikipedia.org/wiki/Rochester,_New_York We are looking forward to hearing from you! Manuela Campanelli, PhD Distinguished Professor — Astrophysical Sciences & Technology, Mathematics & Statistics, Director — RIT’s Center for Computational Relativity & Gravitation; Rochester Institute of Technology; 170 Lomb Memorial Dr. Rochester NY, 14623 585 475 7752 (Office) 956 345 1580 (Cell) mxcsma(a)rit.edu campanellimanuela(a)gmail.com rit.zoom.us/my/mxcsma ORCID: 0000-0002-8659-6591 Senior Staff Specialist: Wenli Chen; wxcvpr(a)rit.edu; 585-475-5298 ccrg.rit.edu "The time will come when men such as I will look upon the murder of animals as they now look on the murder of men." -- Leonardo da Vinci

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Postdocs available at the RIT’s Center for Computational Relativity and Gravitation (CCRG)
by Manuela Campanelli 25 Oct '23

25 Oct '23

The RIT’s Center for Computational Relativity and Gravitation (CCRG) is currently seeking to fill two postdoctoral research positions, including a senior postdoctoral fellowship in gravitational wave astronomy, as part of several NASA and NSF collaborative projects, including a new large NASA Theoretical and Computational Astrophysics Network grant. We are looking for highly qualified individuals interested in pursuing research in the fields of numerical relativity, theoretical and computational astrophysics, with an emphasis on general relativistic magnetohydrodynamics simulations of compact object mergers, such as accreting binary, massive, black holes and binary neutron stars. Accreting supermassive binary black holes are promising multi-messenger sources because they strongly emit both gravitational wave and electromagnetic radiation. It is the goal of our group to combine astrophysical knowledge about the environments of these sources with detailed physical simulations of gas flows in the immediate neighborhoods of these binaries as they proceed from large orbital separations through the merger proper and postmerger, and to predict the signals observers would see to identify them. Similarly, we are interested on pushing the frontiers in developing new high-performance algorithms that will allow us to perform long-term simulations neutron star coalescences from prior to merger through to the formation of disks and/or collapse of the merged remnant, the production of jets, and launching of outflows. The group is actively developing new numerical codes and tools (e.g. AsterX, SpacetimeX SphericalNR, Harm3D, PWMHD) as part of The Einstein Toolkit Consortium. The CCRG hosts a number of research scientists and students involved in gravitational wave data analysis from the LIGO Scientific Collaboration and the LISA consortium, and collaborate closely with the larger astrophysics group of observational astronomers gathering data from the Vera Rubin Observatory, Nanograv and JWST. Our researchers have access to some of the largest supercomputers in the world available at national computing centers such as the TACC’s Frontera Supercomputer and OLCF’ Frontiers exascale GPU-system. Additionally, the CCRG and RIT research computing provide our group exclusive access to several computer clusters with thousands of CPU cores and petabytes of storage. Applications should consist of a cover letter, a brief statement of research interests, a curriculum vitae including publication list, and at least three letters of recommendation. All materials should be sent electronically as soon as possible to: mxcsma[AT]rit.edu with a copy to ccrg-postdoc[AT]ccrg.rit.edu. More information about the CCRG is available at http://ccrg.rit.edu/. And about Rochester at http://en.wikipedia.org/wiki/Rochester,_New_York We are looking forward to hearing from you! Manuela Campanelli, PhD Distinguished Professor — Astrophysical Sciences & Technology, Mathematics & Statistics, Director — RIT’s Center for Computational Relativity & Gravitation; Rochester Institute of Technology; 170 Lomb Memorial Dr. Rochester NY, 14623 585 475 7752 (Office) 956 345 1580 (Cell) mxcsma(a)rit.edu campanellimanuela(a)gmail.com rit.zoom.us/my/mxcsma ORCID: 0000-0002-8659-6591 Senior Staff Specialist: Wenli Chen; wxcvpr(a)rit.edu; 585-475-5298 ccrg.rit.edu "The time will come when men such as I will look upon the murder of animals as they now look on the murder of men." -- Leonardo Da Vinci

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Agenda for Thursday's Meeting
by rhaas＠illinois.edu 23 Oct '23

23 Oct '23

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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