Some of the available perconditioners (e.g. SeqJacobi, SeqSOR, SeqSSOR)) may be given an aditional int as a template parameter, the block recursion level. These preconditioners can be used on blockrecursive matrices with an arbitrary hierarchy depths (eg. BCRSMatrix<BCRSMatrix<FieldMatrix,n,m> > >. Given a block recursion level those preconditioners work as normal on the offdiagonal blocks, treating them as traditional matrix entries. For the diagonal values a special procedure applies: If
the diagonal is treated as a matrix itself and the preconditioner is applied recursively on the matrix representing the diagonal value
with block level
. For the case that
the diagonal is treated as a matrix entry resulting in a linear solve or an identity operation depending on the algorithm.
Files | |
file | preconditioners.hh |
Define general preconditioner interface. | |
Modules | |
Parallel Algebraic Multigrid | |
A Parallel Algebraic Multigrid based on Agglomeration. | |
Classes | |
class | Dune::Preconditioner< X, Y > |
Base class for matrix free definition of preconditioners. More... | |
class | Dune::SeqSSOR< M, X, Y, l > |
Sequential SSOR preconditioner. More... | |
class | Dune::SeqSOR< M, X, Y, l > |
Sequential SOR preconditioner. More... | |
class | Dune::SeqGS< M, X, Y, l > |
Sequential Gauss Seidel preconditioner. More... | |
class | Dune::SeqJac< M, X, Y, l > |
The sequential jacobian preconditioner. More... | |
class | Dune::SeqILU0< M, X, Y > |
Sequential ILU0 preconditioner. More... | |
class | Dune::SeqILUn< M, X, Y > |
Sequential ILU(n) preconditioner. More... | |
class | Dune::Richardson< X, Y > |
Richardson preconditioner. More... | |
class | Dune::ParSSOR< M, X, Y, C > |
A parallel SSOR preconditioner. More... | |
class | Dune::BlockPreconditioner< X, Y, C, T > |
Block parallel preconditioner. More... |