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- W108254830 abstract "The particle-in-cell (PIC) method, used in the simulation of fluid dynamics and plasma interactions, is composed of two distinct computational phases that are each highly parallel, yet problematic in their integrated mapping to parallel processing systems. On a parallel distributed memory system, the different data structures prescribed by the push (the acceleration of particles) and solver (the solution of Poisson's equation) computational phases may require large amounts of data communications during transition between these phases. The ratio of global to nearest-neighbor data communication is a function of the parallel decomposition, the computational algorithms (e.g., multigrid versus Fast Fourier Transform (FFT)) selected, and the characteristics of the physical simulation under investigation. The PIC codes implemented and described here are plasma simulation programs. Unfortunately, these codes are different in their computational details, making direct comparisons of their performances tenuous. On the other hand, the details of the different mapping schemes should be instructive in understanding the complexities of the PIC algorithm and the trade-offs that must be considered in their implementations." @default.
- W108254830 created "2016-06-24" @default.
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- W108254830 date "1987-01-01" @default.
- W108254830 modified "2023-09-23" @default.
- W108254830 title "Survey of parallel mapping schemes of the particle-in-cell method" @default.
- W108254830 hasPublicationYear "1987" @default.
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