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Finite Element Analysis of Shape Rolling Process using Destributive Parallel Algorithms on Cray T3E
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 Title & Authors
Finite Element Analysis of Shape Rolling Process using Destributive Parallel Algorithms on Cray T3E
Gwon, Gi-Chan; Yun, Seong-Gi;
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 Abstract
Parallel Approaches using Cray T3E which is NIPP (Massively Parallel Processors) machine are presented for the efficient computation of the finite element analysis of 3-D shape rolling processes. D omain decomposition method coupled with parallel linear equation solver is used. Domain decomposition is applied for obtaining element tangent stifffiess matrices and residual vectors. Direct and iterative parallel algorithms are used for solving the linear equations. Direct algorithm is_parallel version of direct banded matrix solver. For iterative algorithms, the well-known preconditioned conjugate gradient solver with Jacobi preconditioner is also employed. Moreover a new effective iterative scheme with block inverse matrix preconditioner, which is named by present authors, is presented and its results are compared with the one using Jacobi preconditioner. PVM and MPI are used for message passing and synchronization between processors. The performance and efficiency of each algorithm is discussed and comparisons are made among different algorithms.
 Keywords
Parallel Processing;Distributive Processing;Finite Element Method;Shape Rolling Process;
 Language
Korean
 Cited by
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