[petsc-users] Questions about TSAdjoint for time dependent parameters

[Sajid Ali]

Hi Hong,

Thanks for the explanation!

If I have a cost function consisting of an L2 norm of the difference of a
TS-solution and some reference along with some constraints (say bounds,
L1-sparsity, total variation etc), would I provide a routine for gradient
evaluation of only the L2 norm (where TAO would take care of the
constraints) or do I also have to take the constraints into account (since
I'd also have to differentiate the regularizers) ?


Thank You,
Sajid Ali | PhD Candidate
Applied Physics
Northwestern University
s-sajid-ali.github.io
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