Hi,
I'm interested in these types of Shur complement preconditioners as well. I
had stopped working with petsc-dev some time back because I wasn't using new
functionality. Would this be a good time to start working with petsc-dev in
order to start testing these? I'm primarily interested in stokes
On Sat 2008-09-06 10:57, Kees, Christopher E wrote:
I'm interested in these types of Shur complement preconditioners as well. I
had stopped working with petsc-dev some time back because I wasn't using new
functionality. Would this be a good time to start working with petsc-dev in
order to
OK. Thanks for the suggestions. I'll pull petsc-dev next week and see if
mumps gives me the same behavior as superlu_dist before trying to set up a
Schur complement preconditioner for stokes.
Chris
On 9/6/08 11:31 AM, Jed Brown jed at 59A2.org wrote:
On Sat 2008-09-06 10:57, Kees, Christopher
I'm happy to see this preconditioner going in.
(I -B inv(A)) ( inv(A) 0) (I 0 )
(0I ) ( 0inv(S) ) (-C inv(A) I )
S = D - C inv(A) B
There are some modifications that greatly improves the performance in my
experience.
First, the `inv(A)' appearing in S
