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2 HOT : An improved parallel hashed oct-tree N-body algorithm for cosmological simulation 1
| Content Provider | Semantic Scholar |
|---|---|
| Author | Warren, Michael S. |
| Copyright Year | 2014 |
| Abstract | 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 scientific application results from a series of more than ten 69 billion (40963) particle cosmological simulations, accounting for 4×1020 floating point operations. These results include the first simulations using the new constraints on the standard model of cosmology from the Planck satellite. Our simulations set a new standard for accuracy and scientific throughput, while meeting or exceeding the computational efficiency of the latest generation of hybrid TreePM N-body methods. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://cs.wmich.edu/gupta/teaching/cs5260/5260Sp15web/studentProjects/white+loftus%20nBodySimulations/705125.pdf |
| Alternate Webpage(s) | http://downloads.hindawi.com/journals/sp/2014/802125.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
