Titlebook: New Horizons of Computational Science; Proceedings of the I T. Ebisuzaki,J. Makino Conference proceedings 2001 Terra Scientific Publishing

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Simulation of Nature By Computer,d diversity of developments in computer technology and in the use of that technology warrant continuing examination of how we use computers. The physics perspective can be helpful in formulating and in understanding simulations of naturally occurring phenomena. Some examples, taking from the area of

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Supercomputing and Evolution in Close Binaries,ect, but the human brain is not. Left on its own, it is prone to stray, as many past examples sadly prove. In fact, we have missed few chances to err until new data freshly gleaned from nature set us right again for the next few steps. Thus pillars rather than crutches are the observations on which

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Stellar Dynamics on 200 Tflops Special-Purpose Computers,0 Tflops. Its architecture will be largely similar to that of GRAPE-4, which is a specialized hardware to calculate the gravitational interaction between particles. The improvement in the speed will come mainly from the advance in the silicon semiconductor technology. GRAPE-6 will enable us to direc

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Accretion of Planets and Moons,ing particle disk. We have been working on N-body simulations of dynamical evolution of such systems. For planet accretion, we directly showed “runaway growth” of planetesimals and suggested separation distance between protoplanets as a result of a coupling effect of dynamical friction and distant p

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What We Learned From Special Purpose Computers,s to allow computer experiments of larger size than was possible before. This approach has triggered many people world wide for a variety of models in physics and chemistry. For molecular dynamics simulations a range of special purpose computers have been designed, built and used as a low cost alter

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Reconfigurable Computing,f applications. Unfortunately, the wider the range a system is designed for, the less efficient it tends to be when asked to perform any specific task. Reconfigurable computing is a new form of computation in which reconfigurable logic is used to produce “limited purpose” processors which tailor the

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