
doi: 10.2172/15015127
The authors propose a parallel algebraic multilevel algorithm (AMG), which has the novel feature that the subproblem residing in each processor is defined over the entire partition domain, although the vast majority of unknowns for each subproblem are associated with the partition owned by the corresponding processor. This feature ensures that a global coarse description of the problem is contained within each of the subproblems. The advantages of this approach are that interprocessor communication is minimized in the solution process while an optimal order of convergence rate is preserved; and the speed of local subproblem solvers can be maximized using the best existing sequential algebraic solvers.
And Information Science, Velocity, Computing, Convergence, 99 General And Miscellaneous//Mathematics, Communications, Algorithms
And Information Science, Velocity, Computing, Convergence, 99 General And Miscellaneous//Mathematics, Communications, Algorithms
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