Berlin 2005 – wissenschaftliches Programm
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DY: Dynamik und Statistische Physik
DY 34: Poster
DY 34.52: Poster
Montag, 7. März 2005, 15:30–18:00, Poster TU D
A parallel cluster algorithm applied to model DNA systems — •Jakob Schluttig1 and Godehard Sutmann2 — 1Institut für Theoretische Physik, Universität Leipzig, Germany — 2Zentralinstitut für Angewandte Mathematik, John von Neumann Institut für Computing, Forschungszentrum Jülich, Germany
The aim of this work was to build the basis for a parallel Monte Carlo cluster algorithm for continuous two-dimensional spin systems. A purely geometrical technique for searching clusters was developed. It is capable of being extended to an energetic cluster criterion, which is the basis in Monte Carlo cluster methods. The scaling of the implementation was measured and analyzed. Finally it was applied to model DNA systems [1] simulated with “SpinCG2d” [2] using the Kornyshev-Leikin [3] potential. Geometric clusters were studied as a function of different DNA characteristics, e.g. the charge compensation parameter θ.
[1] H. M. Harreis, A. A. Kornyshev, C. N. Likos, H. Löwen, G. Sutmann, Phys. Rev. Lett. 89, 018303-1 (2002)
[2] G. Sutmann, SpinCG2d - a parallel Monte Carlo program for spin systems, in preparation
[3] A. A. Kornyshev, S. Leikin, J. Chem. Phys. 107, 3656 (1997)