Basic HTML version of Foils prepared 22 February 1998

Foil 27 Representing the N-Body problem

From Fox Presentation Fall 1995 CPS615 Basic Simulation Track for Computational Science -- 1998 Enhancements. by Geoffrey C. Fox
Positions and velocities are 3 N dimensional arrays, X and V
other variables
  • M - spread masses to another 3xN array
  • h - step size
  • ns - number of time steps
subroutine for numerical method will take these arguments and update X and V.
A subroutine called Grav (dataparallel) or MPGrav (message parallel) is assumed to compute new accelerations

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