[petsc-users] MATNEST with shell matrices

[Jed Brown]

On Thu, Feb 21, 2013 at 6:07 PM, Boyce Griffith <griffith at cims.nyu.edu>wrote:

>
> Yes there is a local and global size.  They are both 0.  :-)



Heh, interesting. Most finite-dimensional vector spaces have a dimension.
May as well use VecNestGetSubVec() when needed. I don't think there is any
code that will short-circuit in the zero-size case, but I'd still encourage
you to state a dimension that's not obviously bogus.
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