[petsc-users] Number of levels in PCGAMG

[Jed Brown]

Erik Andreassen <erand at mek.dtu.dk> writes:

> Hi,
>
> I would like to know how to change the number of multigrid levels in AMG. I have tried PCMGSetLevels, which does not work, and I suspect that the PC is not recognized as a multigrid preconditioner, because I'm PCGAMG as the preconditioner to the coarse level solver of a PCMG. However, I do not understand why it is not recognized as a multigrid preconditioner.

PCGAMGSetNlevels
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