Lattice-Gas Automata on Parallel Architectures
Abstract
Conserved Navier-Stokes dynamics can be exactly simulated by lattice gas methods. The authors have implemented lattice-gas automata (LGA) on three parallel architectures: MIT's CAM-8, Thinking Machine Corporations's CM-5, and Kendall Square Research's KSR1. For a 16-bit LGA the main findings are as follows: (1) the CAM-8 appears to be much more efficient than the other two parallel architectures, delivering 25 million site updates per second per module; (2) the CM-5 can simulate larger lattices due to its much larger memory sizes but can only deliver about 1 million site updates per second per node; and (3) the KSR1 can simulate about the same size lattice as the CM-5 and can deliver about 2 million site updates per node. The authors conclude that the CAM-8 architecture is an elegant, arguably the best, distillation of lattice gas dynamics that has been realized in low-cost desktop hardware. they look forward to the construction of a larger CAM-8, with much more than eight modules, in the near future. The CM-5 results are based on a beta version of the software and are not necessarily representative of the full version of the software.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 12, 1993
- Accession Number
- ADA434391
Entities
People
- George Mou
- Guy P. Seeley
- Jeffrey Yepez
Organizations
- Phillips Laboratory