Performance-portable Binary Neutron Star Mergers with AthenaK

Fields, Jacob; Zhu, Hengrui; Radice, David; Stone, James M.; Cook, William; Bernuzzi, Sebastiano; Daszuta, Boris

doi:10.3847/1538-4365/ad9687

Performance-portable Binary Neutron Star Mergers with AthenaK

Journal Article · Tue Jan 14 00:00:00 EST 2025 · The Astrophysical Journal. Supplement Series

DOI:https://doi.org/10.3847/1538-4365/ad9687· OSTI ID:2500239

^[1]; ^[2]; ^[1]; ^[3]; ^[4]; ^[4]; ^[4]

Pennsylvania State University, University Park, PA (United States)
Princeton University, NJ (United States)
Institute for Advanced Study, Princeton, NJ (United States)
Friedrich-Schiller-Universität Jena (Germany)

We introduce an extension to the AthenaK code for general-relativistic magnetohydrodynamics (GRMHD) in dynamical spacetimes using a 3+1 conservative Eulerian formulation. Like the fixed-spacetime GRMHD solver, we use standard finite-volume methods to evolve the fluid and a constrained-transport scheme to preserve the divergence-free constraint for the magnetic field. We also utilize a first-order flux correction (FOFC) scheme to reduce the need for an artificial atmosphere and optionally enforce a maximum principle to improve robustness. We demonstrate the accuracy of AthenaK using a set of standard tests in flat and curved spacetimes. Using a SANE accretion disk around a Kerr black hole, we compare the new solver to the existing solver for stationary spacetimes using the so-called "HARM-like" formulation. We find that both formulations converge to similar results. We also include the first published binary neutron star (BNS) mergers performed on graphical processing units (GPUs). Thanks to the FOFC scheme, our BNS mergers maintain a relative error of $$\mathcal{O}$$(10^–11) or better in baryon mass conservation up to collapse. Finally, we perform scaling tests of AthenaK on OLCF Frontier, where we show excellent weak scaling of ≥80% efficiency up to 32,768 GPUs and 74% up to 65,536 GPUs for a GRMHD problem in dynamical spacetimes with six levels of mesh refinement. AthenaK achieves an order-of-magnitude speedup using GPUs compared to CPUs, demonstrating that it is suitable for performing numerical relativity problems on modern exascale resources.

View Accepted Manuscript (DOE)

Research Organization:: Pennsylvania State Univ., University Park, PA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)

Grant/Contract Number:: SC0021177; SC0024388; AC05-00OR22725; 80NSSC21K1720; PHY-2011725; PHY-2020275; PHY-2116686; AST-2108467

OSTI ID:: 2500239

Journal Information:: The Astrophysical Journal. Supplement Series, Vol. 276, Issue 2; ISSN 0067-0049

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

References (97)

Observation of Gravitational Waves from a Binary Black Hole Merger Abbott, B. P.; Abbott, R.; Abbott, T. D. Physical Review Letters, Vol. 116, Issue 6 https://doi.org/10.1103/PhysRevLett.116.061102	journal	February 2016
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral Abbott, B. P.; Abbott, R.; Abbott, T. D. Physical Review Letters, Vol. 119, Issue 16 https://doi.org/10.1103/PhysRevLett.119.161101	journal	October 2017
Exploring the sensitivity of next generation gravitational wave detectors Abbott, B. P.; Abbott, R.; Abbott, T. D. Classical and Quantum Gravity, Vol. 34, Issue 4 https://doi.org/10.1088/1361-6382/aa51f4	journal	January 2017
Cosmos++ : Relativistic Magnetohydrodynamics on Unstructured Grids with Local Adaptive Refinement Anninos, Peter; Fragile, P. Chris; Salmonson, Jay D. The Astrophysical Journal, Vol. 635, Issue 1 https://doi.org/10.1086/497294	journal	December 2005
Numerical 3+1 General Relativistic Magnetohydrodynamics: A Local Characteristic Approach Anton, Luis; Zanotti, Olindo; Miralles, Juan A. The Astrophysical Journal, Vol. 637, Issue 1 https://doi.org/10.1086/498238	journal	January 2006
Total Variation Diminishing Scheme for Relativistic Magnetohydrodynamics Balsara, Dinshaw The Astrophysical Journal Supplement Series, Vol. 132, Issue 1 https://doi.org/10.1086/318941	journal	January 2001
Numerical {3 + 1} General Relativistic Hydrodynamics: A Local Characteristic Approach Banyuls, Francesc; Font, Jose A.; Ibanez, Jose Ma. The Astrophysical Journal, Vol. 476, Issue 1 https://doi.org/10.1086/303604	journal	February 1997
A Second-Order Godunov Method for Multi-Dimensional Relativistic Magnetohydrodynamics Beckwith, Kris; Stone, James M. The Astrophysical Journal Supplement Series, Vol. 193, Issue 1 https://doi.org/10.1088/0067-0049/193/1/6	journal	January 2011
Adaptive mesh refinement for hyperbolic partial differential equations Berger, Marsha J.; Oliger, Joseph Journal of Computational Physics, Vol. 53, Issue 3 https://doi.org/10.1016/0021-9991(84)90073-1	journal	March 1984
Constraint violation in free evolution schemes: Comparing the BSSNOK formulation with a conformal decomposition of the Z4 formulation Bernuzzi, Sebastiano; Hilditch, David Physical Review D, Vol. 81, Issue 8 https://doi.org/10.1103/PhysRevD.81.084003	journal	April 2010
Tidal effects in binary neutron star coalescence Bernuzzi, Sebastiano; Nagar, Alessandro; Thierfelder, Marcus Physical Review D, Vol. 86, Issue 4 https://doi.org/10.1103/PhysRevD.86.044030	journal	August 2012
Accuracy of numerical relativity waveforms from binary neutron star mergers and their comparison with post-Newtonian waveforms Bernuzzi, Sebastiano; Thierfelder, Marcus; Brügmann, Bernd Physical Review D, Vol. 85, Issue 10 https://doi.org/10.1103/PhysRevD.85.104030	journal	May 2012
A finite element method for angular discretization of the radiation transport equation on spherical geodesic grids Bhattacharyya, Maitraya K.; Radice, David Journal of Computational Physics, Vol. 491 https://doi.org/10.1016/j.jcp.2023.112365	journal	October 2023
An improved weighted essentially non-oscillatory scheme for hyperbolic conservation laws Borges, Rafael; Carmona, Monique; Costa, Bruno Journal of Computational Physics, Vol. 227, Issue 6 https://doi.org/10.1016/j.jcp.2007.11.038	journal	March 2008
High-accuracy numerical simulation of black-hole binaries: Computation of the gravitational-wave energy flux and comparisons with post-Newtonian approximants Boyle, Michael; Buonanno, Alessandra; Kidder, Lawrence E. Physical Review D, Vol. 78, Issue 10 https://doi.org/10.1103/PhysRevD.78.104020	journal	November 2008
Solving 3D relativistic hydrodynamical problems with weighted essentially nonoscillatory discontinuous Galerkin methods Bugner, Marcus; Dietrich, Tim; Bernuzzi, Sebastiano Physical Review D, Vol. 94, Issue 8 https://doi.org/10.1103/PhysRevD.94.084004	journal	October 2016
A high-order finite volume method for systems of conservation laws—Multi-dimensional Optimal Order Detection (MOOD) Clain, S.; Diot, S.; Loubère, R. Journal of Computational Physics, Vol. 230, Issue 10 https://doi.org/10.1016/j.jcp.2011.02.026	journal	May 2011
`GRChombo` : Numerical relativity with adaptive mesh refinement Clough, Katy; Figueras, Pau; Finkel, Hal Classical and Quantum Gravity, Vol. 32, Issue 24 https://doi.org/10.1088/0264-9381/32/24/245011	journal	December 2015
A limiter for PPM that preserves accuracy at smooth extrema Colella, Phillip; Sekora, Michael D. Journal of Computational Physics, Vol. 227, Issue 15 https://doi.org/10.1016/j.jcp.2008.03.034	journal	July 2008
The Piecewise Parabolic Method (PPM) for gas-dynamical simulations Colella, Phillip; Woodward, Paul R. Journal of Computational Physics, Vol. 54, Issue 1 https://doi.org/10.1016/0021-9991(84)90143-8	journal	April 1984
Energy Versus Angular Momentum in Black Hole Binaries Damour, Thibault; Nagar, Alessandro; Pollney, Denis Physical Review Letters, Vol. 108, Issue 13 https://doi.org/10.1103/PhysRevLett.108.131101	journal	March 2012
GR-Athena++: Puncture Evolutions on Vertex-centered Oct-tree Adaptive Mesh Refinement Daszuta, Boris; Zappa, Francesco; Cook, William The Astrophysical Journal Supplement Series, Vol. 257, Issue 2 https://doi.org/10.3847/1538-4365/ac157b	journal	November 2021
ECHO: a Eulerian conservative high-order scheme for general relativistic magnetohydrodynamics and magnetodynamics Del Zanna, L.; Zanotti, O.; Bucciantini, N. Astronomy & Astrophysics, Vol. 473, Issue 1 https://doi.org/10.1051/0004-6361:20077093	journal	July 2007
A positivity-preserving adaptive-order finite-difference scheme for GRMHD Deppe, Nils; Kidder, Lawrence E.; Teukolsky, Saul A. Classical and Quantum Gravity, Vol. 40, Issue 24 https://doi.org/10.1088/1361-6382/ad08f7	journal	November 2023
Flux-corrected transport techniques for multidimensional compressible magnetohydrodynamics DeVore, C. Richard Journal of Computational Physics, Vol. 92, Issue 1 https://doi.org/10.1016/0021-9991(91)90295-V	journal	January 1991
On Godunov-type methods near low densities Einfeldt, B.; Munz, C. D.; Roe, P. L. Journal of Computational Physics, Vol. 92, Issue 2 https://doi.org/10.1016/0021-9991(91)90211-3	journal	February 1991
Quantifying uncertainties in general relativistic magnetohydrodynamic codes Espino, Pedro L.; Bozzola, Gabriele; Paschalidis, Vasileios Physical Review D, Vol. 107, Issue 10 https://doi.org/10.1103/PhysRevD.107.104059	journal	May 2023
IllinoisGRMHD: an open-source, user-friendly GRMHD code for dynamical spacetimes Etienne, Zachariah B.; Paschalidis, Vasileios; Haas, Roland Classical and Quantum Gravity, Vol. 32, Issue 17 https://doi.org/10.1088/0264-9381/32/17/175009	journal	August 2015
Massively Parallel Simulations of Binary Black Hole Intermediate-Mass-Ratio Inspirals Fernando, Milinda; Neilsen, David; Lim, Hyun SIAM Journal on Scientific Computing, Vol. 41, Issue 2 https://doi.org/10.1137/18M1196972	journal	January 2019
Massively parallel simulations of binary black holes with adaptive wavelet multiresolution Fernando, Milinda; Neilsen, David; Zlochower, Yosef Physical Review D, Vol. 107, Issue 6 https://doi.org/10.1103/PhysRevD.107.064035	journal	March 2023
Relativistic fluid disks in orbit around Kerr black holes Fishbone, L. G.; Moncrief, V. The Astrophysical Journal, Vol. 207 https://doi.org/10.1086/154565	journal	July 1976
Implementation of Monte Carlo Transport in the General Relativistic SpEC Code Foucart, Francois; Duez, Matthew D.; Hébert, Francois The Astrophysical Journal, Vol. 920, Issue 2 https://doi.org/10.3847/1538-4357/ac1737	journal	October 2021
Numerical Simulations of Optically Thick Accretion onto a Black Hole. i. Spherical case Fragile, P. Chris; Gillespie, Anna; Monahan, Timothy The Astrophysical Journal Supplement Series, Vol. 201, Issue 2 https://doi.org/10.1088/0067-0049/201/2/9	journal	June 2012
Numerical Simulations of Optically Thick Accretion onto a Black Hole. ii. Rotating flow Fragile, P. Chris; Olejar, Ally; Anninos, Peter The Astrophysical Journal, Vol. 796, Issue 1 https://doi.org/10.1088/0004-637X/796/1/22	journal	October 2014
Waveform systematics in the gravitational-wave inference of tidal parameters and equation of state from binary neutron-star signals Gamba, Rossella; Breschi, Matteo; Bernuzzi, Sebastiano Physical Review D, Vol. 103, Issue 12 https://doi.org/10.1103/PhysRevD.103.124015	journal	June 2021
HARM: A Numerical Scheme for General Relativistic Magnetohydrodynamics Gammie, Charles F.; McKinney, Jonathan C.; Toth, Gabor The Astrophysical Journal, Vol. 589, Issue 1 https://doi.org/10.1086/374594	journal	May 2003
An unsplit Godunov method for ideal MHD via constrained transport Gardiner, Thomas A.; Stone, James M. Journal of Computational Physics, Vol. 205, Issue 2 https://doi.org/10.1016/j.jcp.2004.11.016	journal	May 2005
An unsplit Godunov method for ideal MHD via constrained transport in three dimensions Gardiner, Thomas A.; Stone, James M. Journal of Computational Physics, Vol. 227, Issue 8 https://doi.org/10.1016/j.jcp.2007.12.017	journal	April 2008
The exact solution of the Riemann problem in relativistic magnetohydrodynamics Giacomazzo, Bruno; Rezzolla, Luciano Journal of Fluid Mechanics, Vol. 562 https://doi.org/10.1017/S0022112006001145	journal	August 2006
WhiskyMHD: a new numerical code for general relativistic magnetohydrodynamics Giacomazzo, Bruno; Rezzolla, Luciano Classical and Quantum Gravity, Vol. 24, Issue 12 https://doi.org/10.1088/0264-9381/24/12/S16	journal	June 2007
Can magnetic fields be detected during the inspiral of binary neutron stars? Giacomazzo, Bruno; Rezzolla, Luciano; Baiotti, Luca Monthly Notices of the Royal Astronomical Society: Letters, Vol. 399, Issue 1 https://doi.org/10.1111/j.1745-3933.2009.00745.x	journal	October 2009
High Order Strong Stability Preserving Time Discretizations Gottlieb, Sigal; Ketcheson, David I.; Shu, Chi-Wang Journal of Scientific Computing, Vol. 38, Issue 3 https://doi.org/10.1007/s10915-008-9239-z	journal	September 2008
Parthenon—a performance portable block-structured adaptive mesh refinement framework Grete, Philipp; Dolence, Joshua C.; Miller, Jonah M. The International Journal of High Performance Computing Applications, Vol. 37, Issue 5 https://doi.org/10.1177/10943420221143775	journal	December 2022
On Upstream Differencing and Godunov-Type Schemes for Hyperbolic Conservation Laws Harten, Amiram; Lax, Peter D.; Leer, Bram van SIAM Review, Vol. 25, Issue 1 https://doi.org/10.1137/1025002	journal	January 1983
Compact binary evolutions with the Z4c formulation Hilditch, David; Bernuzzi, Sebastiano; Thierfelder, Marcus Physical Review D, Vol. 88, Issue 8 https://doi.org/10.1103/PhysRevD.88.084057	journal	October 2013
Pseudospectral method for gravitational wave collapse Hilditch, David; Weyhausen, Andreas; Brügmann, Bernd Physical Review D, Vol. 93, Issue 6 https://doi.org/10.1103/PhysRevD.93.063006	journal	March 2016
Distinguishing the nature of comparable-mass neutron star binary systems with multimessenger observations: GW170817 case study Hinderer, Tanja; Nissanke, Samaya; Foucart, Francois Physical Review D, Vol. 100, Issue 6 https://doi.org/10.1103/PhysRevD.100.063021	journal	September 2019
Gravitational Waves from Inspiraling Compact Binaries with Magnetic Dipole Moments Ioka, Kunihito; Taniguchi, Keisuke The Astrophysical Journal, Vol. 537, Issue 1 https://doi.org/10.1086/309004	journal	July 2000
Global high-order numerical schemes for the time evolution of the general relativistic radiation magneto-hydrodynamics equations Izquierdo, M. R.; Pareschi, L.; Miñano, B. Classical and Quantum Gravity, Vol. 40, Issue 14 https://doi.org/10.1088/1361-6382/acd97f	journal	June 2023
AsterX: a new open-source GPU-accelerated GRMHD code for dynamical spacetimes Kalinani, Jay V.; Ji, Liwei; Ennoggi, Lorenzo Classical and Quantum Gravity, Vol. 42, Issue 2 https://doi.org/10.1088/1361-6382/ad9c11	journal	December 2024
Robust recovery of primitive variables in relativistic ideal magnetohydrodynamics Kastaun, Wolfgang; Kalinani, Jay Vijay; Ciolfi, Riccardo Physical Review D, Vol. 103, Issue 2 https://doi.org/10.1103/PhysRevD.103.023018	journal	January 2021
SpECTRE: A task-based discontinuous Galerkin code for relativistic astrophysics Kidder, Lawrence E.; Field, Scott E.; Foucart, Francois Journal of Computational Physics, Vol. 335 https://doi.org/10.1016/j.jcp.2016.12.059	journal	April 2017
Implementation of advanced Riemann solvers in a neutrino-radiation magnetohydrodynamics code in numerical relativity and its application to a binary neutron star merger Kiuchi, Kenta; Held, Loren E.; Sekiguchi, Yuichiro Physical Review D, Vol. 106, Issue 12 https://doi.org/10.1103/PhysRevD.106.124041	journal	December 2022
A splitting method for numerical relativistic magnetohydrodynamics Komissarov, Serguei S.; Phillips, David Monthly Notices of the Royal Astronomical Society, Vol. 536, Issue 2 https://doi.org/10.1093/mnras/stae2620	journal	November 2024
A Godunov-type scheme for relativistic magnetohydrodynamics Komissarov, S. S. Monthly Notices of the Royal Astronomical Society, Vol. 303, Issue 2 https://doi.org/10.1046/j.1365-8711.1999.02244.x	journal	February 1999
First Order Quasilinear Equations in Several Independent Variables Kružkov, S. N. Mathematics of the USSR-Sbornik, Vol. 10, Issue 2 https://doi.org/10.1070/SM1970v010n02ABEH002156	journal	February 1970
Relativistic MHD simulations of extragalactic jets Leismann, T.; Antón, L.; Aloy, M. A. Astronomy & Astrophysics, Vol. 436, Issue 2 https://doi.org/10.1051/0004-6361:20042520	journal	May 2005
Dissipation and Heating in Supersonic Hydrodynamic and mhd Turbulence Lemaster, M. Nicole; Stone, James M. The Astrophysical Journal, Vol. 691, Issue 2 https://doi.org/10.1088/0004-637X/691/2/1092	journal	February 2009
The Einstein Toolkit: a community computational infrastructure for relativistic astrophysics Löffler, Frank; Faber, Joshua; Bentivegna, Eloisa Classical and Quantum Gravity, Vol. 29, Issue 11 https://doi.org/10.1088/0264-9381/29/11/115001	journal	May 2012
Science case for the Einstein telescope Maggiore, Michele; Broeck, Chris Van Den; Bartolo, Nicola Journal of Cosmology and Astroparticle Physics, Vol. 2020, Issue 03 https://doi.org/10.1088/1475-7516/2020/03/050	journal	March 2020
A Measurement of the Electromagnetic Luminosity of a Kerr Black Hole McKinney, Jonathan C.; Gammie, Charles F. The Astrophysical Journal, Vol. 611, Issue 2 https://doi.org/10.1086/422244	journal	August 2004
An HLLC Riemann solver for relativistic flows – II. Magnetohydrodynamics Mignone, A.; Bodo, G. Monthly Notices of the Royal Astronomical Society, Vol. 368, Issue 3 https://doi.org/10.1111/j.1365-2966.2006.10162.x	journal	April 2006
Beyond second-order convergence in simulations of magnetized binary neutron stars with realistic microphysics Most, E. R.; Papenfort, L. Jens; Rezzolla, L. Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 3 https://doi.org/10.1093/mnras/stz2809	journal	October 2019
Type II critical phenomena of neutron star collapse Noble, Scott C.; Choptuik, Matthew W. Physical Review D, Vol. 78, Issue 6 https://doi.org/10.1103/PhysRevD.78.064059	journal	September 2008
Primitive Variable Solvers for Conservative General Relativistic Magnetohydrodynamics Noble, Scott C.; Gammie, Charles F.; McKinney, Jonathan C. The Astrophysical Journal, Vol. 641, Issue 1 https://doi.org/10.1086/500349	journal	April 2006
Direct Calculation of the Radiative Efficiency of an Accretion disk Around a Black hole Noble, Scott C.; Krolik, Julian H.; Hawley, John F. The Astrophysical Journal, Vol. 692, Issue 1 https://doi.org/10.1088/0004-637X/692/1/411	journal	February 2009
Velocity-induced collapses of stable neutron stars Novak, J. Astronomy & Astrophysics, Vol. 376, Issue 2 https://doi.org/10.1051/0004-6361:20011037	journal	September 2001
Large eddy simulations of magnetized mergers of neutron stars with neutrinos Palenzuela, Carlos; Liebling, Steven; Miñano, Borja Physical Review D, Vol. 105, Issue 10 https://doi.org/10.1103/PhysRevD.105.103020	journal	May 2022
Effects of the microphysical equation of state in the mergers of magnetized neutron stars with neutrino cooling Palenzuela, Carlos; Liebling, Steven L.; Neilsen, David Physical Review D, Vol. 92, Issue 4 https://doi.org/10.1103/PhysRevD.92.044045	journal	August 2015
An operator-splitting numerical scheme for relativistic magnetohydrodynamics Phillips, David; Komissarov, Serguei Journal of Physics: Conference Series, Vol. 2742, Issue 1 https://doi.org/10.1088/1742-6596/2742/1/012018	journal	April 2024
High accuracy binary black hole simulations with an extended wave zone Pollney, Denis; Reisswig, Christian; Schnetter, Erik Physical Review D, Vol. 83, Issue 4 https://doi.org/10.1103/PhysRevD.83.044045	journal	February 2011
The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project Porth, Oliver; Chatterjee, Koushik; Narayan, Ramesh The Astrophysical Journal Supplement Series, Vol. 243, Issue 2 https://doi.org/10.3847/1538-4365/ab29fd	journal	August 2019
The black hole accretion code Porth, Oliver; Olivares, Hector; Mizuno, Yosuke Computational Astrophysics and Cosmology, Vol. 4, Issue 1 https://doi.org/10.1186/s40668-017-0020-2	journal	May 2017
Increasing the accuracy of binary neutron star simulations with an improved vacuum treatment Poudel, Amit; Tichy, Wolfgang; Brügmann, Bernd Physical Review D, Vol. 102, Issue 10 https://doi.org/10.1103/PhysRevD.102.104014	journal	November 2020
Gravitational waveform accuracy requirements for future ground-based detectors Pürrer, Michael; Haster, Carl-Johan Physical Review Research, Vol. 2, Issue 2 https://doi.org/10.1103/PhysRevResearch.2.023151	journal	May 2020
Lessons for adaptive mesh refinement in numerical relativity Radia, Miren; Sperhake, Ulrich; Drew, Amelia Classical and Quantum Gravity, Vol. 39, Issue 13 https://doi.org/10.1088/1361-6382/ac6fa9	journal	June 2022
A new moment-based general-relativistic neutrino-radiation transport code: Methods and first applications to neutron star mergers Radice, David; Bernuzzi, Sebastiano; Perego, Albino Monthly Notices of the Royal Astronomical Society, Vol. 512, Issue 1 https://doi.org/10.1093/mnras/stac589	journal	March 2022
GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations Radice, David; Perego, Albino; Zappa, Francesco The Astrophysical Journal, Vol. 852, Issue 2 https://doi.org/10.3847/2041-8213/aaa402	journal	January 2018
THC: a new high-order finite-difference high-resolution shock-capturing code for special-relativistic hydrodynamics Radice, D.; Rezzolla, L. Astronomy & Astrophysics, Vol. 547 https://doi.org/10.1051/0004-6361/201219735	journal	October 2012
High-order fully general-relativistic hydrodynamics: new approaches and tests Radice, David; Rezzolla, Luciano; Galeazzi, Filippo Classical and Quantum Gravity, Vol. 31, Issue 7 https://doi.org/10.1088/0264-9381/31/7/075012	journal	March 2014
Beyond second-order convergence in simulations of binary neutron stars in full general relativity Radice, D.; Rezzolla, L.; Galeazzi, F. Monthly Notices of the Royal Astronomical Society: Letters, Vol. 437, Issue 1 https://doi.org/10.1093/mnrasl/slt137	journal	October 2013
High-Order Numerical-Relativity Simulations of Binary Neutron Stars Radice, David; Rezzolla, Luciano; Galeazzi, Filippo arXiv https://doi.org/10.48550/arXiv.1502.00551	preprint	January 2015
Adaptive mesh refinement in binary black holes simulations Rashti, Alireza; Bhattacharyya, Maitraya; Radice, David Classical and Quantum Gravity, Vol. 41, Issue 9 https://doi.org/10.1088/1361-6382/ad36a5	journal	April 2024
Formation and Coalescence of Cosmological Supermassive-Black-Hole Binaries in Supermassive-Star Collapse Reisswig, C.; Ott, C. D.; Abdikamalov, E. Physical Review Letters, Vol. 111, Issue 15 https://doi.org/10.1103/PhysRevLett.111.151101	journal	October 2013
GW170817, general relativistic magnetohydrodynamic simulations, and the neutron star maximum mass Ruiz, Milton; Shapiro, Stuart L.; Tsokaros, Antonios Physical Review D, Vol. 97, Issue 2 https://doi.org/10.1103/PhysRevD.97.021501	journal	January 2018
Numerical simulations of super-critical black hole accretion flows in general relativity Sądowski, Aleksander; Narayan, Ramesh; McKinney, Jonathan C. Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 1 https://doi.org/10.1093/mnras/stt2479	journal	January 2014
Semi-implicit scheme for treating radiation under M1 closure in general relativistic conservative fluid dynamics codes Sądowski, Aleksander; Narayan, Ramesh; Tchekhovskoy, Alexander Monthly Notices of the Royal Astronomical Society, Vol. 429, Issue 4 https://doi.org/10.1093/mnras/sts632	journal	January 2013
GRaM-X: a new GPU-accelerated dynamical spacetime GRMHD code for Exascale computing with the Einstein Toolkit Shankar, Swapnil; Mösta, Philipp; Brandt, Steven R. Classical and Quantum Gravity, Vol. 40, Issue 20 https://doi.org/10.1088/1361-6382/acf2d9	journal	September 2023
Modeling GW170817 based on numerical relativity and its implications Shibata, Masaru; Fujibayashi, Sho; Hotokezaka, Kenta Physical Review D, Vol. 96, Issue 12 https://doi.org/10.1103/PhysRevD.96.123012	journal	December 2017
Non-linear pulsations in differentially rotating neutron stars: mass-shedding-induced damping and splitting of the fundamental mode Stergioulas, Nikolaos; Apostolatos, Theocharis A.; Font, José A. Monthly Notices of the Royal Astronomical Society, Vol. 352, Issue 4 https://doi.org/10.1111/j.1365-2966.2004.07973.x	journal	August 2004
The Athena++ Adaptive Mesh Refinement Framework: Design and Magnetohydrodynamic Solvers Stone, James M.; Tomida, Kengo; White, Christopher J. The Astrophysical Journal Supplement Series, Vol. 249, Issue 1 https://doi.org/10.3847/1538-4365/ab929b	journal	June 2020
The new discontinuous Galerkin methods based numerical relativity program Nmesh Tichy, Wolfgang; Ji, Liwei; Adhikari, Ananya Classical and Quantum Gravity, Vol. 40, Issue 2 https://doi.org/10.1088/1361-6382/acaae7	journal	December 2022
Kokkos 3: Programming Model Extensions for the Exascale Era Trott, Christian; Lebrun-Grandie, Damien; Arndt, Daniel IEEE Transactions on Parallel and Distributed Systems https://doi.org/10.1109/TPDS.2021.3097283	journal	January 2021
Towards the ultimate conservative difference scheme. II. Monotonicity and conservation combined in a second-order scheme van Leer, Bram Journal of Computational Physics, Vol. 14, Issue 4 https://doi.org/10.1016/0021-9991(74)90019-9	journal	March 1974
Quasi-radial modes of rotating stars in general relativity Yoshida, S.; Eriguchi, Y. Monthly Notices of the Royal Astronomical Society, Vol. 322, Issue 2 https://doi.org/10.1046/j.1365-8711.2001.04115.x	journal	April 2001
Solving the relativistic magnetohydrodynamics equations with ADER discontinuous Galerkin methods, a posteriori subcell limiting and adaptive mesh refinement Zanotti, O.; Fambri, F.; Dumbser, M. Monthly Notices of the Royal Astronomical Society, Vol. 452, Issue 3 https://doi.org/10.1093/mnras/stv1510	journal	July 2015
Binary neutron star merger simulations with neutrino transport and turbulent viscosity: impact of different schemes and grid resolution Zappa, Francesco; Bernuzzi, Sebastiano; Radice, David Monthly Notices of the Royal Astronomical Society, Vol. 520, Issue 1 https://doi.org/10.1093/mnras/stad107	journal	January 2023

Similar Records

Impact of moment-based, energy integrated neutrino transport on microphysics and ejecta in binary neutron star mergers

Journal Article · Thu May 16 00:00:00 EDT 2024 · Physical Review. D. · OSTI ID:2356794

Espino, Pedro L.; Radice, David; Zappa, Francesco; +2 more

r-process nucleosynthesis and kilonovae from hypermassive neutron star post-merger remnants

Journal Article · Fri Nov 04 00:00:00 EDT 2022 · Monthly Notices of the Royal Astronomical Society · OSTI ID:1903400

Curtis, Sanjana; Mösta, Philipp; Wu, Zhenyu; +4 more

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS AND COMPUTING
Magnetohydrodynamical simulations
General relativity
GPU computing
Computational methods
Relativistic binary stars
Neutron stars
Compact objects

Performance-portable Binary Neutron Star Mergers with AthenaK

Citation Formats

References (97)

Similar Records

Related Subjects