> > > Johan Hoffman wrote: >>> >>> Anders Logg wrote: >>>> On Tue, Jun 17, 2008 at 02:45:41PM +0100, Garth N. Wells wrote: >>>>> It would be useful to lay out a plan for tackling DofMaps. Getting >>>>> this >>>>> right is the key to parallel assembly, assembly optimisations and >>>>> applying Dirichlet boundary conditions by eliminating Dirichlet dofs >>>>> from the global system. >>>>> >>>>> I'm happy to take a look, but I'll need some time because I've lost >>>>> my >>>>> overview of DofMaps. If someone else is already on top of it, I'd be >>>>> happy to provide feedback. >>>>> >>>>> Garth >>>> I won't have time to look at it until after the summer and I haven't >>>> started. >>>> >>>> Anyway, I think we should wait until after the next release until we >>>> start messing with the dof maps. >>>> >>>> Are there any issues we need to sort out before releasing 0.8? I'm >>>> thinking about a new release some time this or next week. >>>> >>>> One is to fix the bug in DirichletBC, but other than that? >>>> >>> Now would be a good time for a release so I can start messing with >>> DofMaps. >>> >>> Garth >> >> Has anything more been done about the DofMap design? During the summer >> Niclas has extended to general elements his adaptive algorithm for >> distributed parallel computing, so we are now ready to start messing >> with >> the DofMaps in order to implement his algorithm in DOLFIN. >> > > It has been given some thought, but no changes have been made in the > code yet.
Ok. Any threads on the list to point to where this is discussed? If you have something already, I would suggest making it > publicly available somewhere for feedback before starting work on DOLFIN. It is a refinement and generalization of the thesis work of Niclas Jansson which was discussed on the list before the summer. Is is outlined in his report: http://www.nada.kth.se/utbildning/grukth/exjobb/rapportlistor/2008/rapporter08/jansson_niclas_08051.pdf My announcement here was to initiate a discussion of the detailed implementation, and to check if other DOLFIN-people were working on similar stuff to avoid double/conflicting development. /Johan > > Garth > > >> I see Anders report referenced in the code, where the mapping scheme >> described is fairly close to what Niclas has implemented, although there >> are some differences. We will sit down today to sum up what we think >> needs >> to be done, and then we can discuss this on the mailing list. >> >> /Johan >> >> >> >> >> >> >> >> > > > _______________________________________________ > DOLFIN-dev mailing list > [email protected] > http://www.fenics.org/mailman/listinfo/dolfin-dev > _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
