| Enumerator |
|---|
| None | No preconditioning.
|
| Jacobi | Jacobi.
|
| Neumann | Neumann series polynomial.
|
| LS | Least-squares polynomial.
|
| GS | Symmetric Gauss-Seidel.
|
| DD | Non-overlapping domain decomposition.
|
| ILU | DD with ILU in subdomains.
|
| BILU | DD with block-ILU in subdomains.
|
| ICC | DD with incomplete Choleski in subdomains.
|
| ILUT | DD with ILUT in subdomains.
|
| RILU | DD with RILU in subdomains.
|
| Recursive | Recursive call to iteration.
|
| Smoother | Recursive call to iteration.
|
| Multilevel | DD with coarse grid.
|
| UserDefined | User defined preconditioner.
|
| IfpackBILU | DD with BILU (Ifpack version)
|