[petsc-users] Augmented Lagrangian examples?

Justin Chang jychang48 at gmail.com
Mon Aug 10 09:56:59 CDT 2015

Hi all,

1) I ran across this paper:


and was wondering if there are any current TAO examples that do this.


2) If I integrate this into an FEM (from DMPlex) I will need to assemble an
equality jacobian matrix and constraint vector. But the element-wise
constraints that I need to compute (e.g., the divergence) needs all degrees
of freedom within the element closure including the essential BCs DMPlex
removes from the global matrix/vector. So how can I work around this and/or
access said removed terms inside a TAO routine?

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