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2hot: An improved parallel hashed oct-tree n-body algorithm for cosmological simulation (2013)
| Content Provider | CiteSeerX |
|---|---|
| Author | Warren, Michael S. |
| Description | We report on improvements made over the past two decades to our adaptive treecode N-body method (HOT). A math-ematical and computational approach to the cosmological N-body problem is described, with performance and scal-ability 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 opera-tions. 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 exceed-ing the computational efficiency of the latest generation of hybrid TreePM N-body methods. |
| File Format | |
| Language | English |
| Publisher | ACM |
| Publisher Date | 2013-01-01 |
| Publisher Institution | in Proceedings of SC13: International Conference for High Performance Computing, Networking, Storage and Analysis, SC ’13 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
