Multigrid with inexact minimal residual smoothing acceleration (Q1369443)
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scientific article; zbMATH DE number 1076511
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Multigrid with inexact minimal residual smoothing acceleration |
scientific article; zbMATH DE number 1076511 |
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Multigrid with inexact minimal residual smoothing acceleration (English)
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3 February 1998
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Some inexact minimal residual smoothing (IMRS) techniques to accelerate the standard multigrid convergence are introduced. The IMRS acceleration schemes minimize the residual norm of the multigrid iterate in a subspace and reduce the cost of the standard MRS acceleration by about 40\%. Numerical experiments are employed to compare exact and inexact minimal residual smoothings.
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minimal residual smoothing
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multigrid convergence
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subspace minimization
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numerical experiments
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0.89480096
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