GRChombo : Numerical Relativity with Adaptive Mesh Refinement
arXiv:1503.03436 · doi:10.1088/0264-9381/32/24/245011
Abstract
In this work, we introduce GRChombo: a new numerical relativity code which incorporates full adaptive mesh refinement (AMR) using block structured Berger-Rigoutsos grid generation. The code supports non-trivial "many-boxes-in-many-boxes" mesh hierarchies and massive parallelism through the Message Passing Interface (MPI). GRChombo evolves the Einstein equation using the standard BSSN formalism, with an option to turn on CCZ4 constraint damping if required. The AMR capability permits the study of a range of new physics which has previously been computationally infeasible in a full 3+1 setting, whilst also significantly simplifying the process of setting up the mesh for these problems. We show that GRChombo can stably and accurately evolve standard spacetimes such as binary black hole mergers and scalar collapses into black holes, demonstrate the performance characteristics of our code, and discuss various physics problems which stand to benefit from the AMR technique.
48 pages, 24 figures
References in corpus (11)
- Black Strings, Low Viscosity Fluids, and Violation of Cosmic Censorship
- Binary black-hole evolutions of excision and puncture data
- An instability of higher-dimensional rotating black holes
- Wormholes and trumpets: the Schwarzschild spacetime for the moving-puncture generation
- Turbulent Black Holes
- Exploring New Physics Frontiers Through Numerical Relativity
- Implementation of standard testbeds for numerical relativity
- Binary black holes on a budget: Simulations using workstations
- Numerical evolution of multiple black holes with accurate initial data
- On critical collapse of gravitational waves
- Fully covariant and conformal formulation of the Z4 system in a reference-metric approach: comparison with the BSSN formulation in spherical symmetry
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- Robustness of Inflation to Inhomogeneous Initial Conditions
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- The Effects of Potential Shape on Inhomogeneous Inflation
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- Radiation from Global Topological Strings using Adaptive Mesh Refinement: Methodology and Massless Modes
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- Inhomogeneous initial conditions for inflation: A wibbly-wobbly timey-wimey path to salvation
- CTTK: A new method to solve the initial data constraints in numerical relativity
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- Full 3D Numerical Relativity Simulations of Neutron Star -- Boson Star Collisions with BAM
- End point of nonaxisymmetric black hole instabilities in higher dimensions
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