|Publisher DOI:||10.2140/camcos.2017.12.109||arXiv ID:||1509.01572v3||Title:||Time parallel gravitational collapse simulation||Language:||English||Authors:||Kreienbuehl, Andreas
|Keywords:||Choptuik scaling;Einstein-klein-gordon gravitational collapse;Load balancing;Parareal;Spatial coarsening;Speedup;General Relativity and Quantum Cosmology;General Relativity and Quantum Cosmology;Computer Science - Computational Engineering; Finance; and Science;Computer Science - Distributed; Parallel; and Cluster Computing;Computer Science - Performance||Issue Date:||8-May-2017||Source:||Communications in Applied Mathematics and Computational Science 12 (1): 109-128 (2017-05-08)||Journal:||Communications in applied mathematics and computational science||Abstract (english):||
This article demonstrates the applicability of the parallel-in-time method Parareal to the numerical solution of the Einstein gravity equations for the spherical collapse of a massless scalar field. To account for the shrinking of the spatial domain in time, a tailored load balancing scheme is proposed and compared to load balancing based on number of time steps alone. The performance of Parareal is studied for both the sub-critical and black hole case; our experiments show that Parareal generates substantial speedup and, in the super-critical regime, can reproduce Choptuik's black hole mass scaling law.
|URI:||http://hdl.handle.net/11420/10519||ISSN:||1559-3940||Document Type:||Article||Peer Reviewed:||Yes|
|Appears in Collections:||Publications without fulltext|
Show full item record
checked on Oct 18, 2021
checked on Oct 14, 2021
Add Files to Item
Note about this record
Cite this record
Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.