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Browsing by Author "Özdogan, C"

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    Citation - WoS: 13
    Citation - Scopus: 15
    O(N) Parallel Tight Binding Molecular Dynamics Simulation of Carbon Nanotubes
    (Elsevier, 2002) Özdogan, C; Dereli, G; Çagin, T
    We report an O(N) parallel tight binding molecular dynamics simulation study of (10 x 10) structured carbon nanotubes (CNT) at 300 K. We converted a sequential O(N-3) TBMD simulation program into an O(N) parallel code, utilizing the concept of parallel virtual machines (PVM). The code is tested in a distributed memory system consisting of a cluster with 8 PC's that run under Linux (Slackware 2.2.13 kernel). Our results on the speed up, efficiency and system size are given. (C) 2002 Elsevier Science B.V. All rights reserved.
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    Article
    Citation - WoS: 3
    Citation - Scopus: 3
    Parallelization of a molecular dynamics simulation of an ion-surface collision
    (World Scientific Publ Co Pte Ltd, 2005) Atis, M; Özdoğan, Cem; Özdogan, C; Güvenç, ZB; 40569; Ortak Dersler Bölümü
    Parallel molecular dynamics simulation study of the ion-surface collision system is reported. A sequential molecular dynamics simulation program is converted into a parallel code utilizing the concept of parallel virtual machine (PVM). An effective and favorable algorithm is developed. Our parallelization of the algorithm shows that it is more efficient because of the optimal pair listing, linear scaling, and constant behavior of the internode communications. The code is tested in a distributed memory system consisting of a cluster of eight PCs that run under Linux (Debian 2.4.20 kernel). Our results on the collision system are discussed based on the speed up, efficiency and the system size. Furthermore, the code is used for a full simulation of the Ar-Ni(100) collision system and calculated physical quantities are presented.