dolfin team mailing list archive

[Johan Hake <hake@xxxxxxxxx>]

On Wednesday 07 October 2009 21:58:36 Garth N. Wells wrote:
> The Python mixed-poisson demo is failing in parallel because the
> extraction of sub-functions via split() is making a deep copy, even
> though it should be a 'shallow' copy. Any ideas on how to fix it?

Yes I see now whats wrong... I thought that the assignment operator somewhat 
kept the shallow copy. 

I think we need to add the hack we had previously in DiscreteFunction to make 
it work again. Should we add this in Function directly or should I try to 
subclass Function and implement that particular constructor? I would prefer 
the first.

Johan

> Deep copies for sub-functions in parallel aren't yet supported by DOLFIN.
> 
> Garth
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