Thanks, Matt. This one is very helpful

On Jul 29, 2022, at 9:24 AM, Matthew Knepley <[email protected]> wrote:


On Thu, Jul 28, 2022 at 6:16 PM Tang, Qi 
<[email protected]<mailto:[email protected]>> wrote:
Hi,

Is there some in depth review on different options related to line search of 
snes newtonls? Our solvers are sensitive to the choices there, and I could not 
understand why one works better than the other or how to tune those options. 
Thanks.

In

@article{BruneKnepleySmithTu15,
  title   = {Composing Scalable Nonlinear Algebraic Solvers},
  author  = {Peter R. Brune and Matthew G. Knepley and Barry F. Smith and 
Xuemin Tu},
  journal = {SIAM Review},
  volume  = {57},
  number  = {4},
  pages   = {535--565},
  note    = 
{\url{http://www.mcs.anl.gov/papers/P2010-0112.pdf}<https://urldefense.com/v3/__http://www.mcs.anl.gov/papers/P2010-0112.pdf*7D__;JQ!!HXCxUKc!wsdOxDQ0pllbcoTMbPKGrhcA_V-p0HRh_wC2eTgLQTYFoHheWX0x0wJ-CyDBIjp2q9KAIwXRuzipLw$>},
  url     = 
{http://www.mcs.anl.gov/papers/P2010-0112.pdf<https://urldefense.com/v3/__http://www.mcs.anl.gov/papers/P2010-0112.pdf__;!!HXCxUKc!wsdOxDQ0pllbcoTMbPKGrhcA_V-p0HRh_wC2eTgLQTYFoHheWX0x0wJ-CyDBIjp2q9KAIwUrADUGWA$>},
  doi     = {10.1137/130936725},
  year    = {2015},
  petsc_uses={KSP},
}

we mention them all and give citations. There is not a lot of predictive theory.

  Thanks,

     Matt


Qi


--
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

https://www.cse.buffalo.edu/~knepley/<https://urldefense.com/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!HXCxUKc!wsdOxDQ0pllbcoTMbPKGrhcA_V-p0HRh_wC2eTgLQTYFoHheWX0x0wJ-CyDBIjp2q9KAIwWUnV7ybQ$>

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