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

24 Jan '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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Agenda for Thursday's Meeting
by rhaas＠illinois.edu 22 Jan '24

22 Jan '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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Tenured professorship in Astrophysics at the University of Milano-Bicocca (Italy)
by Bruno Giacomazzo 22 Jan '24

22 Jan '24

The University of Milano-Bicocca (Milan, Italy) will be opening a tenured professorship in astrophysics, with a focus on gravitational-wave data analysis and exploitation. With this notice, we invite expressions of interest from potential candidates. Milano-Bicocca hosts a large group in gravitational astronomy, with activities covering all bands of the gravitational-wave spectrum and the related experiments (LIGO/Virgo, LISA, ET, PTA). Faculty members with matching interests include Bortolas, Colpi, Dotti, Gerosa, Giacomazzo, and Sesana. The group hosts two large ERC grants and currently counts about 10 PhD students and 15 postdocs. We are part of a wider astrophysics unit at Milano-Bicocca (with activities in large-scale structures and experimental cosmology) as well as a large Physics department with ~70 faculty members. We are targeting the opening of a faculty position on a timescale of a few months, with a prospective starting date in the early fall of 2024. Onboarding will be at the associate professor level (“professore associato” in the Italian system), which is a tenured appointment. Formal application requirements include holding either the Italian national habilitation (ASN) or a comparable position abroad for at least 3 years. We are happy to assist potential candidates with their ASN application. Current strategic interests include the development of gravitational-wave data-analysis pipelines for the LISA space mission. At the same time, we are open to all strong candidates willing to bring their ambitious research programs in relativistic astrophysics and/or gravitational-wave astronomy to Milan. Interested applicants are encouraged to send their CVs and a short cover letter to bruno.giacomazzo(a)unimib.it by February 15th, 2024. The CV should include the names and email addresses of three referees who might be approached for references. -- Prof. Bruno Giacomazzo Department of Physics University of Milano-Bicocca Piazza della Scienza 3 20126 Milano Italy email: bruno.giacomazzo(a)unimib.it phone: (+39) 02 6448 2321 web: http://www.brunogiacomazzo.org --------------------------------------------------------------------- There are only 10 types of people in the world: Those who understand binary, and those who don't ----------------------------------------------------------------------

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Star disappear from grid
by Lorenzo Cipriani 19 Jan '24

19 Jan '24

Dear all, my name is Lorenzo Cipriani, PhD student at the University of L'Aquila. My goal is to simulate a BNS merger using initial data computed from Lorene and evolved according to the parameter file I have attached. Cactus reads the initial data correctly, as you can see in the image "rhoxy_initial.png" but, immediately after, the stars practically disappear from the grid, perfectly cut away (see image "rhoxy_it4.png"). Does anybody have a hint on what might be happening? I have never encountered a behavior like this. Thank you for your assistance, best regards, Lorenzo

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meeting minutes for 2024-01-18
by Steven Brandt 18 Jan '24

18 Jan '24

Present: Bing-Ran HE, Steve, Roland, Lihaichang, Sam Cupp, shenfei, Zach, Leo Chair: Roland Minutes: Steve Need to have a release schedule List of updates for the next release: Reprimand - is there a use case? Gallery examples for ID readers FUKA, Sgrid, Canuda TOV solver based on Grhayl, tabulated EOS builtin New Grhayl-based MHD thorns - Gallery example? New tabulated eqn state Baikal updates Bing asked about initial data he did not feel LORENE was friendly Roland pointed him to FUKA and Sgrid http://einsteintoolkit.org/thornguide/ExternalLibraries/SGRID/documentation… http://einsteintoolkit.org/thornguide/Fuka/KadathImporter/documentation.html Roland will try and replicate failure of BNS Trying again to get the check from SPEC No unanswered questions on the email list Open tickets: 2772 Kadath - linking issue on systems with mkl and 2755 POWER - Doesn't compute angular momentum correctly (wrong formula)

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Status of support for multiple floating point precisions in Carpet?
by Erik Keoni Wessel 18 Jan '24

18 Jan '24

Hi, I'm currently working on a thorn development project where it would be helpful to be able to have a mix of single-precision grid functions and double-precision grid functions (a very unusual need, I know). When I had my thorn allocate a grid function of type CCTK_REAL4, I got a message upon running my configurations that I needed to enable support for this type in Carpet. After reading through the Carpet documentation and then digging deep into the source code for CarpetLib, I discovered that there seem to be flags to compile Carpet with support for different types. I passed -DCARPET_ALL_REAL in as part of CPPFLAGS in my optionlist, but attempting to compile with other real types leads to compile-time errors about undefined functions: apparently headers for prolongation functions for all the types are generated, but somehow the corresponding definitions aren't being be linked correctly. I'm not sure what is going wrong, but I am also unable to find any examples of how support for other types is supposed to be enabled, so I am unsure if I am doing this right. So my question is: what is the status of support for grid functions of types besides CCTK_REAL8 in Carpet? Does this feature work, and if so, how can I enable support for all Cactus-supported real types in Carpet? Cheers, — Erik Wessel Department of Physics University of Arizona

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Compiling ET_2023_11 on Sciama and laptop
by Robyn Munoz 18 Jan '24

18 Jan '24

Hello everyone, 1) I have been using the 2020_05 version of Einstein Toolkit for a while now and wanted to use mesh refinement with periodic boundaries but can't get it to work. I tried to run the test parameter file repos/carpet/PeriodicCarpet/test/ml-gw1d-small-amr.par and am getting the error while executing schedule bin BoundaryConditions, routine PeriodicCarpet::PeriodicCarpet_ApplyBC in thorn PeriodicCarpet, file /users/munozr/code/2020_05/Cactus/arrangements/Carpet/PeriodicCarpet/src/periodic.cc:181: -> Cannot handle more than one local component In the PeriodicCarpet thorn documentation I see " it provides correct behaviour for the case where a refinement level overlaps the periodic boundaries, and may therefore be made up of more than one component on the same process " so I think somewhere there, there is an issue so I figured I should try with the latest version of EinsteinToolkit. 2) I got a new laptop Mac Sonoma 14.2.1, so I've been installing the latest Xcode etc. I downloaded EinsteinToolkit 2023_11 and tried to compile it, I ran into issues with SGRID (and DNSdata) and ADIOS2 I see there are tickets about them and I don't need them so I commented them out. Now when I compile the code I get the terminal output and config.log attached. I can't decipher exactly what the issue is from those. Please let me know what I can do to fix this. 3) I also tried to compile ET_2023_11 on the Sciama HPC as well (where the 2020_05 version works well), because of the security of Sciama, I used GetComponents on my laptop, compressed Cactus and scp to Sciama. Then the sciama.ini .cfg .run and .sub files are already included in EinsteinToolkit where I use system/intel64 and intel_comp/2019.2 this gives me the error Cactus requires a C++11 compiler -- check your C++ compiler and C++ compiler flags If using g++ at least version 6 is required, if using icpc use -gxx-name to use libstc++ from g++ at least version 6 Error reconfiguring sim-config I tried using intel_comp/2020.1 (latest available on sciama) and got the same error (and some module warnings). I found the path to g++ and so tried to add -gxx-name = /opt/apps/compilers/gnu_comp/cfg/9.1.0/intel64/bin/g++ to CXXFLAGS in sciama.cfg but this didn't change anything. Please let me know what I can do to fix this. Thank you for your help,Robyn

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Einstein Toolkit Meeting Reminder
by rhaas＠illinois.edu 17 Jan '24

17 Jan '24

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Einsteintoolkit installation on ubuntu 22.04 failed
by emmanuel okorie 17 Jan '24

17 Jan '24

Hi I'm Okorie Emmanuel from the department of Computer Science, University of Jos Nigeria. I got to know about the Einstein Toolkit from a friend doing Phd in physics from my school, i became curious and wanted to explore toolkits. However, I have been trying to install Einsteintoolkit on my Ubuntu 22.04 machine for some time now but have not succeeded. Each time I try I get this message curl: (28) SSL connection timeout and when I visit https://raw.githubusercontent.com/gridaphobe/CRL/ET_2023_11/GetComponents the page does not load. here is the screenshot of the experience from my ubuntu terminal [image: Screenshot from 2023-12-20 05-30-47.png] I'm really frustrated at this point. Please can anyone tell me what I'm doing wrong? or any other alternative? of installing toolkits on my machine. I'm using this guild for installation https://einsteintoolkit.org/download.html curl -kLO https://raw.githubusercontent.com/gridaphobe/CRL/ET_2023_11/GetComponents chmod a+x GetComponents ./GetComponents --parallel https://bitbucket.org/einsteintoolkit/manifest/raw/ET_2023_11/einsteintoolk… Below is the screenshot of my experience [image: Screenshot from 2023-12-15 11-28-16.png] I hope someone can help me out Thanks and regards

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Questions on the installation of ET in Linux system
by 陈智威 17 Jan '24

17 Jan '24

Dear Einstein Toolkit group, I am wirting to ask a question on the installation of ET. I have successfully configured simfactory in my workstation. When I tried to build the Einstein Toolkit with >>> simfactory/bin/sim build -j2 --thornlist manifest/einsteintoolkit.th ,there is something wrong. The build procedure has ran to the stage of : >>> Creating cactus_sim in /home/gw_czw/et/Cactus/exe from EinsteinAnalysis/ADMAnalysis EinsteinBas Base EinsteinBase/ADMCoupling Llama/ADMDerivatives EinsteinBase/ADMMacros EinsteinAnalysis/ADMM umerical/AEILocalInterp EinsteinAnalysis/AHFinder EinsteinAnalysis/AHFinderDirect ExternalLibra BLAS WVUThorns/Baikal WVUThorns/BaikalVacuum CactusBase/Boundary CTThorns/CT_Analytic CTThorns/ ltiLevel EinsteinAnalysis/CalcK Carpet/Carpet Carpet/CarpetEvolutionMask Carpet/CarpetIOASCII C /CarpetIOBasic Carpet/CarpetIOHDF5 Carpet/CarpetIOScalar Carpet/CarpetIntegrateTest Carpet/Carp erp Carpet/CarpetInterp2 Carpet/CarpetLib Carpet/CarpetMask Carpet/CarpetProlongateTest Carpet/ tReduce Carpet/CarpetRegrid Carpet/CarpetRegrid2 Carpet/CarpetRegridTest Carpet/CarpetSlab Carp rpetTracker CactusBase/CartGrid3D CactusNumerical/Cartoon2D EinsteinBase/Constants WVUThorns/Co _to_HydroBase CactusBase/CoordBase EinsteinBase/CoordGauge Llama/Coordinates Llama/CoordinatesS ry Carpet/CycleClock CactusExamples/DemoInterp CactusNumerical/Dissipation EinsteinInitialData/ rtedBHIVP EinsteinAnalysis/EHFinder EinsteinBase/EOS_Base EinsteinEOS/EOS_Hybrid EinsteinEOS/EO alFluid EinsteinEOS/EOS_Omni EinsteinEOS/EOS_Polytrope EinsteinExact/EinsteinExact_Test CactusE ic/EllBase CactusElliptic/EllSOR EinsteinInitialData/Exact EinsteinAnalysis/Extract ExternalLib s/FFTW3 EinsteinInitialData/FLRWSolver WVUThorns/FishboneMoncriefID CactusExamples/FleshInfo Ca tils/Formaline CactusBase/Fortran EinsteinEvolve/GRHydro EinsteinEvolve/GRHydro_InitData Extern raries/GSL EinsteinExact/GaugeWave KrancNumericalTools/GenericFD WVUThorns/GiRaFFE WVUThorns/Gi _to_HydroBase WVUThorns/GiRaFFEfood Llama/GlobalDerivative ExternalLibraries/HDF5 CactusConnect D CactusConnect/HTTPDExtra CactusExamples/HelloWorld Carpet/HighOrderWaveTest EinsteinBase/Hydr EinsteinAnalysis/Hydro_Analysis EinsteinInitialData/Hydro_InitExcision EinsteinInitialData/Hyd SID EinsteinInitialData/IDAnalyticBH EinsteinInitialData/IDAxiBrillBH EinsteinInitialData/IDAxi illBH EinsteinInitialData/IDBrillData EinsteinInitialData/IDConstraintViolate EinsteinInitialDa FileADM EinsteinInitialData/IDLinearWaves CactusWave/IDScalarWave CactusWave/IDScalarWaveC Cact e/IDScalarWaveCXX CactusWave/IDScalarWaveElliptic CactusExamples/IDWaveMoL WVUThorns/ID_convert RaFFE WVUThorns/ID_converter_ILGRMHD CactusBase/IOASCII CactusBase/IOBasic CactusPUGHIO/IOHDF5 sPUGHIO/IOHDF5Util CactusIO/IOJpeg CactusBase/IOUtil WVUThorns/IllinoisGRMHD CactusBase/InitBas tusNumerical/InterpToArray Llama/Interpolate2 EinsteinExact/KerrSchild ExternalLibraries/LAPACK rnalLibraries/LORENE Lean/LeanBSSNMoL Llama/LlamaWaveToy CactusNumerical/LocalInterp CactusNume /LocalInterp2 CactusNumerical/LocalReduce Carpet/LoopControl McLachlan/ML_ADMConstraints McLach L_ADMQuantities McLachlan/ML_BSSN McLachlan/ML_BSSN_Helper McLachlan/ML_BSSN_Test McLachlan/ML_ McLachlan/ML_CCZ4_Helper McLachlan/ML_CCZ4_Test McLachlan/ML_WaveToy McLachlan/ML_WaveToy_Test nalLibraries/MPI CactusUtils/MemSpeed EinsteinInitialData/Meudon_Bin_BH EinsteinInitialData/Meu in_NS EinsteinInitialData/Meudon_Mag_NS EinsteinExact/Minkowski CactusNumerical/MoL EinsteinExa difiedSchwarzschildBL EinsteinAnalysis/Multipole Lean/NPScalars Proca/NPScalars_Proca EinsteinI lData/NRPyEllipticET CactusUtils/NaNCatcher CactusUtils/NaNChecker EinsteinEvolve/NewRad Cactus /Nice EinsteinInitialData/NoExcision CactusUtils/NoMPI CactusNumerical/Noise CactusNumerical/No ITTNullCode/NullConstr PITTNullCode/NullDecomp PITTNullCode/NullEvolve PITTNullCode/NullExact P llCode/NullGrid PITTNullCode/NullInterp PITTNullCode/NullNews PITTNullCode/NullPsiInt PITTNullC ullSHRExtract PITTNullCode/NullVars ExternalLibraries/OpenSSL EinsteinAnalysis/Outflow External ries/PAPI CactusPUGH/PUGH CactusPUGH/PUGHInterp CactusPUGH/PUGHReduce CactusPUGH/PUGHSlab Cactu rical/Periodic Carpet/PeriodicCarpet CactusExamples/Poisson Proca/ProcaBase Proca/ProcaEvolve P Proca_simpleID EinsteinAnalysis/PunctureTracker EinsteinAnalysis/QuasiLocalMeasures EinsteinIni ata/ReadInterpolate Carpet/ReductionTest Carpet/ReductionTest2 Carpet/ReductionTest3 CactusNume /ReflectionSymmetry Carpet/RegridSyncTest EinsteinInitialData/RotatingDBHIVP CactusNumerical/Ro gSymmetry180 CactusNumerical/RotatingSymmetry90 CactusExamples/SampleBoundary CactusExamples/Sa O Scalar/ScalarBase Scalar/ScalarEvolve Scalar/ScalarInit WVUThorns/Seed_Magnetic_Fields WVUTho iagnostics/Seed_Magnetic_Fields_BNS EinsteinUtils/SetMask_SphericalSurface EinsteinExact/Shifte eWave WVUThorns/ShiftedKerrSchild CactusNumerical/Slab CactusNumerical/SlabTest CactusConnect/S CactusNumerical/SpaceMask PITTNullCode/SphericalHarmonicDecomp PITTNullCode/SphericalHarmonicR PITTNullCode/SphericalHarmonicReconGen CactusNumerical/SphericalSurface EinsteinBase/StaticConf CactusNumerical/SummationByParts CactusBase/SymBase CactusUtils/SystemStatistics CactusUtils/S Topology CactusElliptic/TATelliptic EinsteinUtils/TGRtensor EinsteinInitialData/TOVSolver Cactu rical/TensorTypes CactusUtils/TerminationTrigger CactusTest/TestArrays Carpet/TestCarpetGridInf tusTest/TestComplex CactusTest/TestCoordinates CactusTest/TestFortranCrayPointers CactusTest/Te tranDependencies1 CactusTest/TestFortranDependencies2 CactusTest/TestFpointerNULL CactusTest/Te eF90 CactusTest/TestGlobalReduce CactusTest/TestInclude1 CactusTest/TestInclude2 CactusNumerica tLocalInterp2 CactusNumerical/TestLocalReduce CactusTest/TestLoop Carpet/TestLoopControl Cactus TestMath CactusTest/TestMoL CactusTest/TestPar CactusTest/TestReadWrite CactusTest/TestReduce C Test/TestSchedule CactusTest/TestStrings CactusTest/TestTable CactusTest/TestTimers CactusTest/ ypes CactusBase/Time CactusExamples/TimerInfo CactusUtils/TimerReport Carpet/Timers EinsteinBas nuBase CactusUtils/Trigger EinsteinInitialData/TwoPunctures Scalar/TwoPunctures_BBHSF Proca/Two ures_KerrProca EinsteinExact/Vaidya2 CactusUtils/Vectors WVUThorns_Diagnostics/VolumeIntegrals_ WVUThorns_Diagnostics/VolumeIntegrals_vacuum CactusUtils/WatchDog CactusWave/WaveBinarySource /WaveExtractL CactusExamples/WaveMoL CactusExamples/WaveToy1DF77 CactusExamples/WaveToy2DF77 Ca ave/WaveToyC CactusWave/WaveToyCXX CactusWave/WaveToyExtra CactusWave/WaveToyF77 CactusWave/Wav 90 CactusWave/WaveToyFreeF90 EinsteinAnalysis/WeylScal4 ExternalLibraries/hwloc ExternalLibrari bjpeg WVUThorns_Diagnostics/particle_tracerET ExternalLibraries/pthreads WVUThorns_Diagnostics/ bPoynET ExternalLibraries/zlib The report gave error: >>> /home/gw_czw/anaconda3/bin/x86_64-conda-linux-gnu-ld: unrecognized option '-Wall' /home/gw_czw/anaconda3/bin/x86_64-conda-linux-gnu-ld: use the --help option for usage informati make[1]: *** [/home/gw_czw/et/Cactus/lib/make/make.configuration:150: /home/gw_czw/et/Cactus/ex tus_sim] Error 1 make: *** [Makefile:265: sim] Error 2 So what does this "-wall" mean? I can not find such option in theeinsteintoolkit.th file. Thanks very much if you could help me solve this problem! Yours, Zhiwei Chen

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