CUBE: An Information-optimized Parallel Cosmological N-body Algorithm

  title={CUBE: An Information-optimized Parallel Cosmological N-body Algorithm},
  author={Hao-ran Yu and Ue-Li Pen and Xin Wang},
  journal={Astrophysical Journal Supplement Series},
  • Hao-ran Yu, Ue-Li Pen, Xin Wang
  • Published 2017
  • Physics
  • Astrophysical Journal Supplement Series
  • Cosmological large scale structure $N$-body simulations are computation-light, memory-heavy problems in supercomputing. The considerable amount of memory is usually dominated by an inefficient way of storing more than sufficient phase space information of particles. We present a new parallel, information-optimized, particle-mesh based $N$-body code CUBE, in which information- and memory-efficiency is increased by nearly an order of magnitude. This is accomplished by storing particle's relative… CONTINUE READING

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