On Fri, Jul 1, 2016 at 12:43 PM, Harshad Sahasrabudhe <hsaha...@purdue.edu>
wrote:

> Thanks! I don't necessarily want to place each partition on a processor.
> The idea is to renumber the DOF indices such that the matrix looks like a
> block tri-diagonal matrix. I am limited to first order Lagrange elements
> and probably a trapezoidal integration rule.
>
> If I call renumber_nodes_and_elements after using LinearPartitioner, will
> the resulting DOFs make a block tri-diagonal matrix?
>

Possibly, but this has nothing to do with partitioning, as Derek mentioned.

Do you have a structured 3D "Cartesian" mesh?  What numbering of your mesh
would you expect to give you a block tri-diagonal matrix?  I am not aware
of one that does this, and the algorithm used for renumbering in
renumber_nodes_and_elements() certainly doesn't guarantee it.

-- 
John
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