[petsc-users] fieldsplit question

[Sanjay Govindjee]

We would like to solve an FEA problem (unstructured grid) where the nodes
on the elements have different dofs.  For example the corner nodes have
only dof 0 and then mid-side nodes have dofs 0,1,2  (think 8 node
serendipity element).  This is a multi-physics problem so we are looking to
use the fieldsplit features to pre-condition and solve.  Is there a simple
example of this type of usage in the src that we can try to mimic?

I presume this will take programming as opposed to just setting command
line options.

-sanjay
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