Parallel diffusion-limited aggregation

Title:
Parallel diffusion-limited aggregation
Creator:
Kaufman, H (Author)
Vespignani, A (Author)
Mandelbrot, B B (Author)
Woog, L (Author)
Language:
English
Publisher:
American Physical Society
Copyright date:
1995
Type of resource:
Text
Genre:
Articles
Format:
electronic
Digital origin:
born digital
Abstract/Description:
We present methods for simulating very large diffusion-limited aggregation (DLA) clusters using parallel processing (PDLA). With our techniques, we have been able to simulate clusters of up to 130 million particles. The time required for generating a 100 million particle PDLA is approximately 13 h. The fractal behavior of these ''parallel'' clusters changes from a multiparticle aggregation dynamics to the usual DLA dynamics. The transition is described by simple scaling assumptions that define a characteristic cluster size separating the two dynamical regimes. We also use DLA clusters as seeds for parallel processing. In this case, the transient regime disappears and the dynamics converges from the early stage to that of DLA.
Comments:
Originally published in Physical Review E, v.52 no.5 (1995), pp.5602-5609. DOI:10.1103/PhysRevE.52.5602. Dr. Vespignani is affiliated with Northeastern University as of the time of deposit.
Subjects and keywords:
Fractals
simulation
diffusion-limited aggregation (DLA)
clusters
parallel processing
PDLA
Physics

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