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Virtual Petaflop Simulation: Parallel Potential Solvers and New Integrators for Gravitational Systems"The orbit of any one planet depends on the combined motion of all the planets, not to mention the actions of all these on each other. To consider simultaneously all these causes of motion and to define these motions by exact laws allowing of convenient calculation exceeds, unless I am mistaken, the forces of the entire human intellect" -Isaac Newton 1687. Epochal surveys are throwing down the gauntlet for cosmological simulation. We describe three keys to meeting the challenge of N-body simulation: adaptive potential solvers, adaptive integrators and volume renormalization. With these techniques and a dedicated Teraflop facility, simulation can stay even with observation of the Universe. We also describe some problems in the formation and stability of planetary systems. Here, the challenge is to perform accurate integrations that retain Hamiltonian properties for 10(exp 13) timesteps.
Document ID
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Lake, George
(NASA Ames Research Center Moffett Field, CA United States)
Quinn, Thomas
(Washington Univ. Bellingham, WA United States)
Richardson, Derek C.
(Washington Univ. Bellingham, WA United States)
Stadel, Joachim
(Washington Univ. Bellingham, WA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Publication Information
Publication: HPCCP/CAS Workshop Proceedings 1998
Subject Category
Distribution Limits
Work of the US Gov. Public Use Permitted.
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