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readme.md

N-Body

This is the n-body benchmark from the benchmarksgame. It models the orbits of Jovian planets, using the same simple symplectic-integrator.

Usage

It takes two arguments in this order:

  • n: the number of iterations to perform
  • (optional) algorithm: the algorithm to use - defaults to the fastest one.
    • 0: scalar algorithm
    • 1: SIMD algorithm

Implementation

There are three kernels, two of which are only run twice independently of the number of iterations (offset_momentum and energy). The advance kernel is run once per iterations and uses 100% of the running time.