dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Thu, Mar 22, 2007 at 10:56:35AM +0100, Johan Jansson wrote:
> > On Thu, Mar 22, 2007 at 09:54:53AM +0100, Johan Jansson wrote:
> >> Hi!
> >>
> >> We have several DOLFIN solver module and kernel developers in our
> >> research group using DOLFIN at various levels. What we have seen is a
> >> need for a version of DOLFIN which is maintained for module
> >> development.
> >>
> >> Currently there are two public versions of DOLFIN we point people to:
> >> the latest release and the latest development version (the tip of the
> >> dolfin repository). We are now introducing dolfin-fsi, which is (and
> >> will continue to be) a little bit behind the development tip, but
> >> verified as working with the existing modules. This enables the use of
> >> new features not present in the latest release, while giving the
> >> stability needed for module development.
> >>
> >> The name "fsi" comes from fluid-structure interaction and is currently
> >> the main focus of our module development. The name could very well
> >> change. We can see this phase as a transition to where the solver
> >> modules in DOLFIN will be split off into a separate package
> >> "dolfin-modules".
> >>
> >> The recommended mode of operation is to develop solver modules against
> >> the "dolfin-fsi" repository and kernel features against the "dolfin"
> >> repository. The repositories will be synchronized at appropriate
> >> points in time. This allows all DOLFIN developers to see what people
> >> are doing with their solver modules, and makes it easier to identify
> >> common issues and features.
> >>
> >> The dolfin-fsi repository can be accessed here:
> >>
> >> http://www.fenics.org/dev/dolfin-fsi
> >>
> >>   Johan
> >
> > What about dolfin-stable?
> >
> > Is it still maintained or dropped in favor of dolfin-fsi?
> >
> > /Anders
> 
> dolfin-stable still exists. dolfin-stable is simply the latest release
> with backported bugfixes found in the further development of DOLFIN. So
> rather than getting the latest release, it's better to get dolfin-stable.
> But no new development will happen in dolfin-stable.

Good.

> dolfin-stable can be accessed here:
> 
> http://www.fenics.org/hg/dolfin-stable
> 
> From a functionality point of view, dolfin-stable has the functionality of
> the latest release, while dolfin-fsi has functionality as near the
> development tip as possible.
> 
> So from a solver module/application developer's point of view, if you want
> to develop your application against the latest release of DOLFIN, get
> dolfin-stable, and if you want to develop your application against the
> development version of DOLFIN, get dolfin-fsi.
> 
>   Johan

I don't understand this. If you want to develop against the development
version of DOLFIN, then get dolfin-dev.

If you get dolfin-fsi, you'll need to cope with both a changing kernel
*and* potentially unstable module development in unrelated modules.

/Anders