On Thu 2008-11-13 12:22, Tim Kroeger wrote: > I wonder what that means because the AIJ matrix type should be able to > do ILU preconditioning, shouldn't it? In other words: If not, which > matrix type will then be able to do that?
ILU has very poor parallel scaling and is not implemented in PETSc. With only four processors, it may still be a reasonable choice and Euclid from Hypre (--download-hypre) is probably the best parallel implementation. -pc_type hypre -pc_hypre_type euclid Jed -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: not available URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20081113/c5edf624/attachment.pgp>
