From: Roy Stogner <roystgnr@ic...> - 2007-07-23 14:50:43
On Mon, 23 Jul 2007, Bin wrote:
> When I use LU_PRECON for preconditioner type, my code can not be parallized.
> Can I still conduct parallel computing when I use LU_PRECON as
> preconditioner ?
Not really; PETSc's LU decomposition is serial-only. The best you can
do in parallel is to use LU as a sub-preconditioner on each processor
and use Additive Schwarz or Block Jacobi or something to put together
the blocks, but this won't give you convergence in one iteration the
way LU does in serial.
Get latest updates about Open Source Projects, Conferences and News.