Users June 2024

users@lists.einsteintoolkit.org

10 participants
18 discussions

Agenda for Thursday's Meeting
by rhaas＠illinois.edu 17 Jun '24

17 Jun '24

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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Using FUKA ID's in ETK
by Jason Alarcon 17 Jun '24

17 Jun '24

Hello, I am new to using the Kadath FUKA solver as a thorn for the Einstein Toolkit and I decided to use the BBH.info <http://bbh.info/> ID located in the KadathImporter/par path and its respected .par file, however when I run my usual create and submit command with simfactory, there is some parsing error: - /home/eilyn/simulations/BBH/SIMFACTORY/exe/cactus_sim -L 3 /home/eilyn/simulations/BBH/output-0000/BBH.info <http://bbh.info/> WARNING level 0 from host Girls-DESKTOP33. process 0 in thorn cactus, file BBH.info:2 <http://bbh.info:2/>: -> ERROR IN PARAMETER FILE:Parse Error Expected one of the following characters: ':'initial { ^ I have tried fixing the formatting but nothing has worked thus far. Here is the ID file: How can this file be put into Cactus format? Best regards, Jason Alarcon

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Meeting minutes for 2024-06-13
by Cupp, Samuel D. 13 Jun '24

13 Jun '24

Present: Sam, Keith, Steve, Lucas, Zach, Leo, Roland # ET Workshop recap * Other than Steve getting very sick, meeting went well * in process of gathering slides, videos to provide links * should add a page on the wiki for "things to keep in mind while planning a workshop" * Try to collect pictures from meeting to share # ET Release * working to get testing, gallery examples completed * goal: have release out by the end of June * BNS gallery example needs some additional instructions to better clarify the required steps to run * Z4c is delayed to next release, so it was removed from manifest thornlist # Tickets * Ticket 2803: this PR is already merged; the commit will be closed * Ticket 2802: needs similar fix as in ticket 2801 * Ticket 2801: PR resolves compilation failures; should be reviewed and merged Next week Chair: Lucas Minute taker: Roland Samuel Cupp Postdoctoral Researcher Department of Physics University of Idaho

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Einstein Toolkit Meeting Reminder
by rhaas＠illinois.edu 12 Jun '24

12 Jun '24

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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Error on the linking phase on compilation in a virtual environment
by José Ferreira 12 Jun '24

12 Jun '24

Dear toolkit users and developers, With the latest update of GCC to version 14, there is a known error that prevents the compilation from taking place, preventing me from compiling the toolkit. I’ve been trying to do something which I probably should have some time ago to avoid this kind of issues, while also granting some portability between machines, which is to setup a virtual environment using Conda to compile the toolkit. I am sending you this e-mail because I’ve failed to compile the toolkit in a virtual environment, where I am currently stuck with an error during the linking phase. Before the update to GCC 14, and without the virtual environment, I was able of compiling the toolkit without any issue. Here are the steps that I have performed: 1. Activate an empty virtual environment managed by a conda (or a drop-in replacement) with the conda-forge repository configured 2. |conda install gcc gxx gfortran openmpi openmpi-mpicc openmpi-mpicxx openmpi-mpifort binutils| 3. Compile the toolkit with an empty thornlist, attached in |empty.th|, and an option file that points towards the virtual environment that is activated, attached in |venv.cfg| 4. Get the following error from |ld| (the full log for making the config and the binary are attached in |cactus_empty.log|) |Creating cactus_empty in /home/undercover/projects/cactus/exe from /home/undercover/.micromamba/envs/phd/bin/x86_64-conda-linux-gnu-ld: unrecognised emulation mode: arch=native Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 elf_iamcu make[1]: *** [/home/undercover/projects/cactus/lib/make/make.configuration:150: /home/undercover/projects/cactus/exe/cactus_empty] Error 1 make: *** [Makefile:265: empty] Error 2 | To me, the previous error indicates that something is passing the wrong flags to |ld|, because even if the emulation mode was not recognized it should give the error |ld: unrecognised emulation mode: <something>| instead of |ld: unrecognised emulation mode: arch=<something>|. Removing the flag |-march=native| from the compilers confirms my guess by revealing a different error at the same stage |Creating cactus_empty in /home/undercover/projects/cactus/exe from /home/undercover/.micromamba/envs/phd/bin/x86_64-conda-linux-gnu-ld: unrecognized option '-DMPICH_IGNORE_CXX_SEEK' /home/undercover/.micromamba/envs/phd/bin/x86_64-conda-linux-gnu-ld: use the --help option for usage information make[1]: *** [/home/undercover/projects/cactus/lib/make/make.configuration:150: /home/undercover/projects/cactus/exe/cactus_empty] Error 1 make: *** [Makefile:265: empty] Error 2 | and if I were to remove the corresponding flag in the config file, |ld| will complain about something else. It really seems like something is passing the flags onto |ld| where it shouldn’t, but I cannot tell who and where. I should note that compiling very basic programs in C in the virtual environment doesn’t raise any issues, although I haven’t tested it very thoroughly. Please do let me know if you have any issues in rendering this e-mail! Best regards, José Ferreira

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Agenda for Thursday's Meeting
by rhaas＠illinois.edu 10 Jun '24

10 Jun '24

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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Compiling Einstein Toolkit
by Edmond, Lawrence 04 Jun '24

04 Jun '24

Hello, I am Lawrence Edmond, IV, a rising third-year PhD student at Brown University in the physics department. I am interested in using EinsteinToolkit to simulate black holes with accretion disks for cosmo/dark matter research. I am following along with the Wiki <https://einsteintoolkit.org/download.html> and the JupyterNotebook <https://github.com/einsteintoolkit/jupyter-et/blob/master/tutorial-server/n…> on git to compile and run the first "HelloWorld" Thorn before attempting to write my own. Following along with the notebook. I am able to compile EinsteinToolkit via the following bash command: ./simfactory/bin/sim build -j4 --thornlist ../einsteintoolkit.th which differs from the notebook by the location of the "einsteintoolkit.th" thorn. This is able to compile without errors however, when I try to run the following command to create and execute the "HelloWorld" thorn, ./simfactory/bin/sim create-run helloworld \ --parfile arrangements/CactusExamples/HelloWorld/par/HelloWorld.par I get an error message saying that the executable cannot be found or was not created (see below for a copy of the output). [ledmond@login010 Cactus]$ ./simfactory/bin/sim create-run helloworld \ --parfile arrangements/CactusExamples/HelloWorld/par/HelloWorld.par Warning: Current Working directory does not match Cactus sourcetree, changing to /users/ledmond/EinsteinToolkit/Cactus Parameter file: /oscar/home/ledmond/EinsteinToolkit/Cactus/arrangements/CactusExamples/HelloWorld/par/HelloWorld.par Error: Executable /users/ledmond/EinsteinToolkit/Cactus/exe/cactus_sim for configuration sim does not exist or is not readable Aborting Simfactory. I believe the issue is that the procedure is looking for the executable file, and the associated folder to hold all created executables is being created using a path that cannot be accessed on my cluster. That being said, is there a way to manually change the path for the exe/ directory that is created by Simfactory? Thank you in advance for any help you may offer. Please do not hesitate to contact me if you need any more information or further clarification to address this compilation issue. -- *Best Regards, * *Lawrence Edmond, IV* *Class of 2026*

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European Einstein Toolkit Meeting 2024
by Philipp Moesta 04 Jun '24

04 Jun '24

European Einstein Toolkit Workshop and Meeting 2024 We are pleased to announce the 2024 edition of the European Einstein Toolkit Meeting<https://indico.nikhef.nl/event/5531/>. The in-person workshop will be held at the Gravitation & Astroparticle Physics Amsterdam (https://www.grappa.amsterdam/) center of the University of Amsterdam and will provide an opportunity for researchers and students to learn about the Einstein Toolkit (https://einsteintoolkit.org/), a community-driven software platform of core computational tools to advance and support research in relativistic astrophysics and gravitational physics. The workshop will offer a mixture of talks and tutorials, with the tutorials including basic tutorials for new users and more advanced topics. The talks will, likewise, provide information for new users and will highlight exciting science cases and the latest developments in numerical relativity. Please register via the website no later than Jun 14, 2024. Looking forward to seeing you there! Philipp on behalf of the SOC/LOC

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