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math.NA2025
Mixed precision multigrid with smoothing based on incomplete Cholesky factorization
Petr Vacek, Hartwig Anzt, Erin Carson +3
Multigrid methods are popular iterative methods for solving large-scale sparse systems of linear equations. We present a mixed precision formulation of the multigrid V-cycle method…
math.NA2023
Multigrid Methods using Block Floating Point Arithmetic
Nils Kohl, Stephen F. McCormick, Rasmus Tamstorf
Block Floating Point (BFP) arithmetic is currently seeing a resurgence in interest because it requires less power, less chip area, and is less complicated to implement in hardware…