Diakoptics, domain decomposition and parallel computing
نویسندگان
چکیده
منابع مشابه
Parallel Computing and Domain Decomposition
Domain decomposition techniques appear a natural way to make good use of parallel computers. In particular, these techniques divide a computation into a local part, which may be done without any interprocessor communication, and a part that involves communication between neighboring and distant processors. This paper discusses some of the issues in designing and implementing a parallel domain d...
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The study deals with the parallelization of finite element based Navier-Stokes codes using domain decomposition and state-ofart sparse direct solvers. There has been significant improvement in the performance of sparse direct solvers. Parallel sparse direct solvers are not found to exhibit good scalability. Hence, the parallelization of sparse direct solvers is done using domain decomposition t...
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We present an approach to parallel variational optical flow computation on standard hardware by domain decomposition. Using an arbitrary partition of the image plane into rectangular subdomains, the global solution to the variational approach is obtained by iteratively combining local solutions which can be efficiently computed in parallel by separate multi-grid iterations for each subdomain. T...
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Direct numerical simulation (DNS) of complex flows require solving the problem on parallel machines using high accuracy schemes. Compact schemes provide very high spectral resolution, while satisfying the physical dispersion relation numerically. However, as shown here, compact schemes also display bias in the direction of convection – often producing numerical instability near the inflow and s...
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This paper is concerned with the evaluation of a new algorithm for simulation of large scale nonlinear network systems as typified by water distribution networks. The algorithm, described in detail in [2], is a development and generalisation of Kron’s ideas on tearing linear systems [1] and it combines Newton-Raphson iterative process with diakoptical calculation of state increments at each ite...
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ژورنال
عنوان ژورنال: The Computer Journal
سال: 1994
ISSN: 0010-4620,1460-2067
DOI: 10.1093/comjnl/37.10.840