Users August 2020

users@lists.einsteintoolkit.org

15 participants
23 discussions

Number of levels.
by Bilal Hameed 20 Aug '20

20 Aug '20

Dear Users, I am running, repos/ctthorns/CT_MultiLevel/par/constraints_spherical.par. When I set refinement levels to 5 (in .par file) it's running and without any error gives outputs only up to 3-refinement levels. why not five refinement levels? I am working on 8GB RAM. No killing is shown.

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Meeting Minutes 2020-08-20
by Hamilton, Maria 20 Aug '20

20 Aug '20

Call Chair: Peter Diener Minute taker: Maria Babiuc-Hamilton Peter starts the meeting by asking if there is anything else to be added to the agenda. Concluding after a silence that there is nothing to be added, he starts with the first two items on the agenda, namely BNS and BBH gallery testing. Roland says is there, Shawn Rosofsky is in charge with it, Atul confirms that is there and reports that the BBH testing is for the most part done and it is uploaded at the address: https://bitbucket.org/einsteintoolkit/www/branch/BBH_Gallery_test_2020_Augu… Peter goes to the next item, namely the proposed inclusion of ReadInterpolate, Roland’s thorn Roland explains that Yosef is reviewing, and asked for a specific test to confirm that the interpolator works, as well as and documentation. Everything should be in the master thorn list. Two test are running, interpolating TOV star, and it needs reviewed. He states that we are in the middle of the release, so it should be OK for inclusion. Peter ask about Power and Roland reports that there is more work to be done there: merge scripts, clean-up on scripts, documentation. The math and physics are there, but the user-interface is not. He concludes that is not yet of the quality to include in ETK in the next month or so, but meantime it is publicly available. Zach, as the reviewer for this thorn, concurs with Roland. The review has not started, and he foresees he will be continuously engaged with other commitments the coming months. Roland announces that Power will be retracted for this release. Zach expresses his interest in picking up Power in a few months, because he is looking for non-Mathematica based post-processing GW code. Peter follows up with NRpyPN, for which he is the reviewer. Although he did not start yet, he will free some time to start the review soon. Zach confirms that the code is ready for review, and asks Roland what he thinks about moving forward to larger package, by adding the eccentricity reduction code. Roland replies that the eccentricity reduction code is there, but it will also need a bit of work, maybe not as much as Power. He will make it public but does not have the intention to include it in the next release, because is not ready for lack of man power. On the todo list are a flexible parameter file to be written, flexible, and make it automated with simfactory. He prefers to keep it separately. Roland also entreats the reviewers to plan for lot of time for review. Peter goes to the unanswered questions on the mail list and concludes that there is no action to be taken there. Zach mentions the email requesting code for Kretschmann Scalar and states that is implemented both in NRPy and WeylScal4 thorn. He refers to a private conversation with the user that requested the Kretschmann Scalar code, regarding the fact that is a 4D quantity. Peter goes on to open tickets and please review and asks if there is anything in particular. Roland describes the work he has done in removing the old style interface of the stress energy tensor deprecated in 2011, without removing its functionality. He needed to change Exact, to no longer ADMCoupling and ADMMacros, removed ADMConstraints and changed to McLaughlin ADMConstraints. This is a major change, and all test pass. He does not yet propose to remove Coupling and Macro because there are many tests depending on them that need to be removed. Peter complements Roland for his work and declares end of agenda. Nobody has anything else to bring up, and the meeting is adjourned. Maria _______________________ 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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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 18 Aug '20

18 Aug '20

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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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 17 Aug '20

17 Aug '20

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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Re: [Users] [ET Trac] #2362: ET mailing list spam filter occasionally rejects some GMail emails as SPAM
by Steven R. Brandt 17 Aug '20

17 Aug '20

I'm looking into it. --Steve On 8/15/2020 1:41 AM, Roland Haas wrote: > #2362: ET mailing list spam filter occasionally rejects some GMail > emails as SPAM > Reporter: Roland Haas > Status: open > Milestone: > Version: > Type: bug > Priority: minor > Component: Cactus website > > Comment (by Roland Haas): > > @Steven R. Brandt since this requires root access to the VM at LSU, > did you already have time to try out the fix I am providing? > > -- > Ticket URL: > https://bitbucket.org/einsteintoolkit/tickets/issues/2362/et-mailing-list-s… > > > _______________________________________________ > Trac mailing list > Trac(a)einsteintoolkit.org > http://lists.einsteintoolkit.org/mailman/listinfo/trac

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Code for Kretschmann Scalar
by Bilal Hameed 15 Aug '20

15 Aug '20

Dear Users, Does anyone have a code for Kretschmann Scalar? If anyone has it kindly share it.

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Meeting Minutes 2020-08-13
by Gabella, William E 14 Aug '20

14 Aug '20

Attending: Steve B, Bill G, Peter D, Atul K, Roland H, Zach E, Yosef Z, Maria H, Miguel G, Helvi W Chair: Steve B Minutes: Bill G * LSU Online ET Workshop https://www.cct.lsu.edu/Einsteintoolkitworkshop https://www.youtube.com/playlist?list=PLzB9aSNzlOE_LF3c-72ZEmi9sTPHSJu54 Seemed to work out okay. Need the tutorial server to re-boot automatically, some web pages do not really exit. Currently three users are using 123% CPU right now and likely not real. Did work well. Peters tutorial needs to work better than having an extra compiled executable. ** Transitioning from NDSLabs to just the LSU machine. Ask to re-point the DNS entry to LSU from NDSLabs. Also the core flexibility up to 48 cores is easy with the LSU system...on a single node. To use more you have to span multiple nodes, and that is possible. ** Post workshop survey? Have we done that with the other workshops? No one recalls a post workshop survey. Sounds like a good idea. ** Steve has money for in-person meeting next year...assuming things loosen up with the pandemic. * Other Workshops ** No one knows about a European ET workshop and seems late to get one going. ** Barry Wardell Advances in Computational Relativity workshop at Brown University, Sep 9 to Dec 11, 2020. ET should be represented there. Zach and Peter are attending. https://icerm.brown.edu/programs/sp-f20/ ** Helvi is organizing LISA Waveform Working Group, sometime 7-11 September, 2 or 3 days long. Online with Zoom. https://lisasymposium13.lisamission.org/ ** KITP Santa Barbara Probing Effective Theories of Gravity in Strong Fields and Cosmology, Monday for three weeks, every day from 8 to 10am. Open and free since online. https://www.kitp.ucsb.edu/activities/greft20 * AMREX Especially want to know how the GPU support works. It can but down not have to use CUDA unified memory. Do not have to worry about keeping track of the data movement. They have a heat equation example to can run on the GPU and does so seemlessly. You can tell, because you give them a lambda funciton that tells them how to run. Multiple MPI processes with one GPU all run ont he one GPU, but does try to spread them out. IT is possible to have some on the CPU and others on GPUs but not recommended by AMREX because of load balancing. Zach, GPU related. The student that wrote a Latex to C code parser will be re-joining the efforts funded out of the gran and he will be working on GPU kernel output starting with CUDA and NRPy. Original plan is to look at NVidia sample codes, wave equation in 3D and build off of that. Steve, likes the idea of building on top of AMRex to have the most impact down the road. Zack, worried about speed-up if you do not get the finite difference equations right. Steve, the AMR is the hard part, need to do prolongation, restriction, and populate ghost zones and that is functionality you do not want to replicate. Zach, on the Kernel side generating the EEQs so that there is good performance seems the hard, important part. https://amrex-codes.github.io/ * Other topics - None * Unanswered Questions - None https://www.einsteintoolkit.org/tools/unanswered.php * Tickets - No discussion https://bitbucket.org/einsteintoolkit/tickets/issues?status=open&status=new… For Review, no discussion https://bitbucket.org/einsteintoolkit/tickets/issues?status=new&status=open… * Volunteers Chairs: Peter (Aug 20), Zach (Aug 27) Minutes: Maria (Aug 20), Roland (Aug 27) * Anything else Maria, do analysis and post-processing work? https://docs.einsteintoolkit.org/et-docs/Analysis_and_post-processing Roland, It is just a list and gets updated. Wolfgang K's PostCactus was just linked there, should be good. SimulationTools works. But we do not test these tools and even check that they still exist. Steve, should we check those tools? Roland, No. Bill, At least check the links maybe. Atul, Binary BH gallery, made a branch on GIT and updated the index file for that page. Atul, needs to be checked? Ticket? Maybe not, but link to ET bitbucket, as a branch, https://bitbucket.org/einsteintoolkit/www/branch/BBH_Gallery_test_2020_Augu… , click on View source, upper right. -- ===================================== William Gabella Research Assistant Professor Department of Physics and Astronomy Vanderbilt University Nashville, TN USA b.gabella(a)vanderbilt.edu (o) 615-343-2713

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 10 Aug '20

10 Aug '20

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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Workshop: Advances in Computational Relativity
by Barry Wardell 06 Aug '20

06 Aug '20

Dear Einstein Toolkit users, We would like to invite you to the first workshop as part of the semester-long program "Advances in Computational Relativity". This first workshop will provide an overview of both state-of-the-art and open challenges drawing from multiple themes (theory, analysis of the equations, computation, and data analysis) within the broad context of Einstein's general relativity theory. Many of the talks will focus on the computation of gravitational radiation from compact bodies using numerical and analytical approaches for both current and future detectors. Speakers will draw from physics, astronomy, and applied and pure mathematics. We plan to hold hands-on tutorial workshops as part of the afternoon sessions. Due to COVID-19, this workshop will be held online. Please apply using the link "Apply with Cube" at the workshop website ( https://icerm.brown.edu/programs/sp-f20/w1/) if you would like to participate in this workshop. We also welcome participation as part of the semester-long program (https://icerm.brown.edu/programs/sp-f20) which will include working groups in areas of interest including deep learning and perturbation theory, as well as regular seminars. Program Organizing Committee: Douglas Arnold, U. Minnesota Scott Field, UMass Dartmouth Gaurav Khanna, UMass Dartmouth Deirdre Shoemaker, Georgia Tech Saul Teukolsky, Cornell Niels Warburton, UC Dublin Barry Wardell, UC Dublin

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Re: [Users] Workshop
by Hamilton, Maria 05 Aug '20

05 Aug '20

Roland, That was it! Thank you! Your talk Yesterday was really useful. Will you please share the link where I can find the Jupyter notebook you presented? For whatever reason, from https://etk.cct.lsu.edu/ I cannot access but 5 tutorials: CactusTutorial-08-2020.ipynb<https://etk.cct.lsu.edu/user/babiuc/notebooks/CactusTutorial-08-2020.ipynb> CactusTutorial.ipynb<https://etk.cct.lsu.edu/user/babiuc/notebooks/CactusTutorial.ipynb> CreatingANewThorn-HeatEqn.ipynb<https://etk.cct.lsu.edu/user/babiuc/notebooks/CreatingANewThorn-HeatEqn.ipy…> CreatingANewThorn-WaveEqn.ipynb<https://etk.cct.lsu.edu/user/babiuc/notebooks/CreatingANewThorn-WaveEqn.ipy…> VisualizingOutput-WaveMoL.ipynb<https://etk.cct.lsu.edu/user/babiuc/notebooks/VisualizingOutput-WaveMoL.ipy…> thank you, Maria _______________________ 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 ________________________________ From: Roland Haas Sent: Monday, August 3, 2020 12:09 PM To: Hamilton, Maria Cc: users(a)einsteintoolkit.org Subject: Re: [Users] Workshop Hello Maria, looks like the gcc-10/gfortran-10 issue to me. Please note that if there is *any* gcc-10 installed then simfactory will pick it up and use it. (copied from responses of mine to the same question on the users mailing list earlier): --8<-- Then please see here for a workaround: https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fbitbucket.org%2feinstei… https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fbitbucket.org%2feinstei… basically by adding -fcommon and -fallow-argument-mismatch to the compiler flags. The tutorial notebook https://github.com/nds-org/jupyter-et/blob/master/CactusTutorial.ipynb also contains information on the workaround. A proper fix is ready to be deployed to the released code but we were holding off until after the workshop to not accidentally introduce more (unknown) issues on top of the one for which we have a workaround. To fix this you can edit the file configs/sim/OptionList and also (the path might be a bit fuzzy): simfactory/mdb/optionlists/generic-mp-10.cfg and replace all gcc-10, g++-10 and gfortran-10 by the -9 flavors or by adding the -fXXX options that I had mentioned before. Afterwards you will have to run: simfactory/bin/sim build --reconfig which will instruct simfactory to update the build options using the values in configs/sim/OptionList . --8<-- Yours, Roland > Hi, > > I have an error when running the commands from the Jupyter tutorial on my Mac laptop, on terminal: > ___ > > > ------------------------------------------------------ > > There was 1 error during execution of the CST > > This must be corrected before compilation can proceed > > ------------------------------------------------------ > > > > > ------------------------------------------------------ > > Warnings were generated during execution of the CST > > ------------------------------------------------------ > > > > CST error 1: > > -> Configuration script for thorn LAPACK returned exit code 2 > > (no error message) > > > ------------------------------------------------------ > > > make[1]: *** [/Users/babiuc/ETK2020/Cactus/configs/sim/config-data/make.thornlist] Error 1 > > ___ > > > When I am trying to run the commands from the Jupyter notebook, the error is in LoopControl: > ____ > > COMPILING Carpet/LoopControl/src/type_sizes.F90 > /Users/babiuc/ETK2020/Cactus/configs/sim/build/LoopControl/type_sizes.f90:57:33: > > 56 | type_sizes(1) = CCTK_PointerTo(vec(2)) - CCTK_PointerTo(vec(1)) > | 2 > 57 | type_sizes(2) = CCTK_PointerTo(space(2)) - CCTK_PointerTo(space(1)) > | 1 > Error: Type mismatch between actual argument at (1) and actual argument at (2) (TYPE(lc_space_t)/TYPE(lc_vec_t)). > /Users/babiuc/ETK2020/Cactus/configs/sim/build/LoopControl/type_sizes.f90:57:60: > > 56 | type_sizes(1) = CCTK_PointerTo(vec(2)) - CCTK_PointerTo(vec(1)) > | 2 > 57 | type_sizes(2) = CCTK_PointerTo(space(2)) - CCTK_PointerTo(space(1)) > | 1 > Error: Type mismatch between actual argument at (1) and actual argument at (2) (TYPE(lc_space_t)/TYPE(lc_vec_t)). > /Users/babiuc/ETK2020/Cactus/configs/sim/build/LoopControl/type_sizes.f90:58:33: > > 56 | type_sizes(1) = CCTK_PointerTo(vec(2)) - CCTK_PointerTo(vec(1)) > | 2 > 57 | type_sizes(2) = CCTK_PointerTo(space(2)) - CCTK_PointerTo(space(1)) > 58 | type_sizes(3) = CCTK_PointerTo(control(2)) - CCTK_PointerTo(control(1)) > | 1 > Error: Type mismatch between actual argument at (1) and actual argument at (2) (TYPE(lc_control_t)/TYPE(lc_vec_t)). > /Users/babiuc/ETK2020/Cactus/configs/sim/build/LoopControl/type_sizes.f90:58:62: > > 56 | type_sizes(1) = CCTK_PointerTo(vec(2)) - CCTK_PointerTo(vec(1)) > | 2 > 57 | type_sizes(2) = CCTK_PointerTo(space(2)) - CCTK_PointerTo(space(1)) > 58 | type_sizes(3) = CCTK_PointerTo(control(2)) - CCTK_PointerTo(control(1)) > | 1 > Error: Type mismatch between actual argument at (1) and actual argument at (2) (TYPE(lc_control_t)/TYPE(lc_vec_t)). > make[3]: *** [type_sizes.F90.o] Error 1 > make[2]: *** [make.checked] Error 2 > make[1]: *** [/Users/babiuc/ETK2020/Cactus/configs/sim/lib/libthorn_LoopControl.a] Error 2 > make[1]: *** Waiting for unfinished jobs.... > COMPILING configs/sim/bindings/build/SpaceMask/cctk_ThornBindings.c > Creating /Users/babiuc/ETK2020/Cactus/configs/sim/lib/libthorn_SpaceMask.a > make: *** [sim] Error 2 > > ____ > > This is with gcc-10. > > Maria > _______________________ > 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 > > > ________________________________ > From: users-bounces(a)einsteintoolkit.org <users-bounces(a)einsteintoolkit.org> on behalf of Roland Haas <rhaas(a)illinois.edu> > Sent: Monday, August 3, 2020 10:02 AM > To: users(a)einsteintoolkit.org <users(a)einsteintoolkit.org> > Subject: Re: [Users] Workshop > > Hello Bilal, > > > Dear Sir, > > Is the workshop started? > > any Link for the workshop? > https://lsu.zoom.us/j/92731656466 > > Yours, > Roland > > -- > My email is as private as my paper mail. I therefore support encrypting > and signing email messages. Get my PGP key from http://pgp.mit.edu . -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://pgp.mit.edu .

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Users August 2020