[petsc-users] Petsc4py DMREDUNDANT or equivalent functionality

[Ben Fogelson]

Hi everyone,

I'm trying to use a timestepper to solve a nonlinear system with Petsc4py.
This system includes a grid variables which I can manage using a DMDA, but
it also includes a small number of globally coupled scalar values. This
seems like what DMREDUNDANT was designed for: make DMDA and DMREDUNDANT
objects, stick them into a composite, and use the global vector generated
by that composite DM as the state variable in my nonlinear solver.

As best I can tell, Petsc4py doesn't have a method like
DM().createRedundant()--perhaps it this DM just isn't implemented? Can
anyone recommend an alternate approach to getting the same functionality?

Thanks,
Ben
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