By Sangwon Chae, Soon-Bin Yim, Youngshin Han (auth.), Jong-Hyun Kim, Kangsun Lee, Satoshi Tanaka, Soo-Hyun Park (eds.)
This booklet is a compilation of study accomplishments within the fields of modeling, simulation, and their purposes, as offered at AsiaSim 2011 (Asia Simulation convention 2011). The convention, held in Seoul, Korea, November 16–18, was once equipped by means of ASIASIM (Federation of Asian Simulation Societies), KSS (Korea Society for Simulation), CASS (Chinese organization for process Simulation), and JSST (Japan Society for Simulation Technology). AsiaSim 2011 supplied a discussion board for scientists, academicians, and pros from the Asia-Pacific quarter and different elements of the area to proportion their newest fascinating examine findings in modeling and simulation methodologies, thoughts, and their instruments and purposes in army, conversation community, undefined, and normal engineering problems.
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F is the eigenfrequency and c p = (1 − σ 2 ) ρ / E is the sound speed for the longitudinal wave. 2 Boundary Conditions At the top of the shell, the extensional displacement must be zero so that u = 0 at θ = 0 (4) 38 Y. Kagawa et al. There are two possibilities to be considered at the edge. (a) Assuming that the edge is fixed for the extension, u = 0 at (b) Assuming that the edge is free, θ = θa (5-a) du − w = 0 at θ = θ a (5-b) dθ The fixed edge must be closer to the real situation. 3 Numerical Solution The simplest way to solve numerically is to introduce the finite difference method .
The scalability of the number of LPs 7 Conclusion We have developed a parallel simulator for large-scale wireless sensor network using instruction-level discrete-event simulation method and optimal-synchronous parallel discrete-event simulation method. The speedup formula derived from our simulation model shows that the speedup approaches the square of the number of LPs as the number of sensor nodes increases. The results of our experiments proved validity of the formula in predicting the speedup achievable.
Kim We carry out the third experiment to verify the speedup formula in Section 5. The formula predicts that the speedup is close to the square of the number of LPs as the number of sensor nodes increases. In this experiment, speedups are measured when the number of sensor nodes is increased from 100 to 2,000 and the number of LPs is two or ten. Fig. 5 shows that the speedup approaches the square of the number of LPs. The maximum speedup achieved with two LPs is about four times. When the number of LPs is ten, the speedup approaches 100 times.