High performance computing simulations of self-gravity in astronomical agglomerates

Rocchetti, Néstor - Nesmachnow, Sergio - Tancredi Machado, Gonzalo José

Resumen:

This article describes the advances on the design, implementation, and evaluation of efficient algorithms for self-gravity simulations in astronomical agglomerates. Three algorithms are presented and evaluated: the occupied cells method, and two variations of the Barnes & Hut method using an octal and a binary tree. Two scenarios are considered in the evaluation: two agglomerates orbiting each other and a collapsing cube. Results show that the proposed octal tree Barnes & Hut method allows improving the performance of the self-gravity calculation up to 100 with respect to the occupied cell method, while having a correct numerical accuracy. The proposed algorithms are efficient and accurate methods for self-gravity simulations in astronomical agglomerates.


Detalles Bibliográficos
2021
ANII: FCE_1_2019_1_156451
Simulation
High-performance computing
Self-gravity
Astronomical agglomerates
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/35263
Acceso abierto
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
Resumen:
Sumario:Versión permitida: preprint