2HOT: An Improved Parallel Hashed Oct-Tree N-Body Algorithm for Cosmological Simulation

We report on improvements made over the past two decades to our adaptive treecode N-body method (HOT). A mathematical and computational approach to the cosmological N-body problem is described, with performance and scalability measured up to 256k (218) processors. We present error analysis and scien...

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Bibliographic Details
Main Author: Michael S. Warren
Format: Article
Language:English
Published: Hindawi Limited 2014-01-01
Series:Scientific Programming
Online Access:http://dx.doi.org/10.3233/SPR-140385