[petsc-users] Richardson with multiplicative MG vs. full MG

[Jed Brown]

On Mon, Aug 13, 2012 at 4:58 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

> For now I'd like to get a better handle on what types of variants there
> would be. This can be handled by including them and seeing what patterns
> come up and then later unifying them.


Common variants include over-weighting, using a different discretization
for residual and correction, and doing a different correction on the second
leg of a W cycle.

This paper is a good example of what an exotic FAS MG cycle can look like.

http://ftp.cs.technion.ac.il/he/people/irad/online-publications/BY93.pdf
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