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Title: Optimizing the Point-In-Box Search Algorithm for the Cray Y-MP(TM) Supercomputer

Technical Report ·
DOI:https://doi.org/10.2172/2603· OSTI ID:2603

Determining the subset of points (particles) in a problem domain that are contained within certain spatial regions of interest can be one of the most time-consuming parts of some computer simulations. Examples where this 'point-in-box' search can dominate the computation time include (1) finite element contact problems; (2) molecular dynamics simulations; and (3) interactions between particles in numerical methods, such as discrete particle methods or smooth particle hydrodynamics. This paper describes methods to optimize a point-in-box search algorithm developed by Swegle that make optimal use of the architectural features of the Cray Y-MP Supercomputer.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
OSTI ID:
2603
Report Number(s):
SAND93-0933; ON: DE00002603
Country of Publication:
United States
Language:
English

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