dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Aug 19, 2008 at 12:12:50PM +0200, Jed Brown wrote:
> On Tue 2008-08-19 11:59, Anders Logg wrote:
> > On Thu, Aug 14, 2008 at 10:10:03PM +0000, Jed Brown wrote:
> > > One way to implement this is to allocate a vector for Dirichlet values,
> > > a vector for Homogeneous values, and a Combined vector.  The Homogeneous
> > > vector is the only one that is externally visible.
> > 
> > Isn't this problematic? I want the entire vector visible externally
> > (and not the homogeneous part). It would make it difficult to plot
> > solutions, saving to file etc.
> > 
> > Maybe the Function class could handle the wrapping but it would involve a
> > complication.
> 
> Right, by `externally visible' I mean to the solution process, that is
> time-stepping, nonlinear solver, linear solvers, preconditioners.  The
> vector you are concerned about is the post-processed state which you can
> get with zero communication.  It is inherently tied to the mesh and
> anything you do with it likely needs to know mesh connectivity.  I don't
> think it is advantageous to lump this in with the global state vector.
> 
> Jed

I don't understand. What is the global state vector?

-- 
Anders

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