[petsc-dev] Preconditioned LSQR

[Matthew Knepley]

I think this is what our preconditioner is currently doing in LSQR, but its
a neat nonlinear application

  http://arxiv.org/abs/1308.6634

     Matt

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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