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Showing 1 to 2 of 2 for “"matrix reordering"”.
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Recycling Preconditioners for Sequences of Linear Systems and Matrix Reordering
… by rank-one updates. Properties of the system matrix are analyzed. We use Krylov subspace methods to solve these linear systems. Krylov subspace methods need a preconditioner to be efficient and robust. This causes the problem of computing a sequence of preconditioners corresponding to the …
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A Framework for Grid Solvers
… a computational grid without creating the sparse matrix explicitly at any stage of the solution process. This allows it to take advantage of additional information about the problem that is available within the grid data structure. Such an approach leads to an optimal parallel algorithm for matrix …