dolfin team mailing list archive

["Garth N. Wells" <g.n.wells@xxxxxxxxxx>]

Anders Logg wrote:
> Garth, what is the status of the linear algebra? If you are happy,
> I'll take another look and then we can take care of the remaining stuff.

It's pretty much done. I still need to fix the selection of the 
preconditioner when choosing by name,

  PETScKrylovSolver solver(PETScPreconditioner::ilu);

You'll see that there is an enum list in PETScPreconditioner and 
uBlasPreconditioner. I'd like to change this to just one list so it 
won't matter whether PETSc or uBlas is being used, and if the requested 
preconditioner is not available, then a default is chosen. Should then 
be possible to do

  KrylovSolver solver(Preconditioner::ilu);

Same story for choosing the Krylov method by name. Any suggestions?

I'm also thinking of moving the individual Krylov methods out of 
uBlasKrylovSolver.


> Here's a suggested plan:
>
>        1. Review/cleanup (Garth)
>        2. Review/cleanup/class diagram (Anders)
>        3. Fix PyDOLFIN linear algebra including typedefs (Johan J)
>        3. Finish linear algebra section in manual (Johan H)
>        4. Remove PETSc ifdefs from Navier-Stokes module (Johan H)

I did this yesterday. Just one PETSc ifdef left for choosing the Hypre 
preconditioner.

>        4. Remove PETSc ifdefs from elasticity module (Johan J)

I removed them from elasticity (not elasticity-updates). The module 
needs some cleaning up still.

>        4. Unit tests for linear algebra (Anders, Garth)
>        4. Demos for linear algebra (Garth)
>        4. Benchmarks for linear algebra (Garth)
>        4. Review/cleanup of ODE solvers (Anders)
>
> What more do we want to finish before the next release?

Sounds good.

Garth

> Hopefully we can make a concentrated effort and make the release
> quickly so we can move on to work on the mesh.
>
> /Anders
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