IMD: A Software Package for Molecular Dynamics Studies on Parallel Computers

J. Stadler (), R. Mikulla and H.-R. Trebin
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J. Stadler: Institut für Theoretische und Angewandte Physik (ITAP), Universitäat Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
R. Mikulla: Institut für Theoretische und Angewandte Physik (ITAP), Universitäat Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
H.-R. Trebin: Institut für Theoretische und Angewandte Physik (ITAP), Universitäat Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany

International Journal of Modern Physics C (IJMPC), 1997, vol. 08, issue 05, 1131-1140

Abstract: We report on implementation and performance of the program IMD, designed for short range molecular dynamics simulations on massively parallel computers. After a short explanation of the cell-based algorithm, its extension to parallel computers as well as two variants of the communication scheme are discussed. We provide performance numbers for simulations of different sizes and compare them with values found in the literature. Finally we describe two applications, namely a very large scale simulation with more than 1.23×109atoms, to our knowledge the largest published MD simulation up to this day and a simulation of a crack propagating in a two-dimensional quasicrystal.

Keywords: Molecular Dynamics; Short Range Forces; Massively Parallel Computers; Large Scale Simulations; Cell Algorithm (search for similar items in EconPapers)
Date: 1997
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DOI: 10.1142/S0129183197000990

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