Interpretation of parareal as a two-level additive Schwarz in time preconditioner and its acceleration with GMRES

Nguyen, V; Grigori, L

Nguyen, V (通讯作者)，Inria, Project Team ALPINES, 2 Rue Simone IFF, F-75012 Paris, France.;Nguyen, V (通讯作者)，Sorbonne Univ, CNRS, Lab Jacques Louis LJLL L, 4 Pl Jussieu, F-75005 Paris, France.;Nguyen, V (通讯作者)，Univ Paris, 4 Pl Jussieu, F-75005 Paris, France.

NUMERICAL ALGORITHMS, 2023; 94 (1): 29

Abstract

We describe an interpretation of parareal as a two-level additive Schwarz preconditioner in the time domain. We show that this two-level preconditione......

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