SNESNEWTONLS#
Newton based nonlinear solver that uses a line search
Options Database Keys#
-snes_linesearch_type
- bt,basic. Select line search type-snes_linesearch_order <3> - 2, 3. Selects the order of the line search for bt
-snes_linesearch_norms
- Turns on/off computation of the norms for basic linesearch (SNESLineSearchSetComputeNorms()
)-snes_linesearch_alpha
- Sets alpha used in determining if reduction in function norm is sufficient-snes_linesearch_maxstep
- Sets the maximum stepsize the line search will use (if the 2-norm(y) > maxstep then scale y to be y = (maxstep/2-norm(y)) *y)-snes_linesearch_minlambda
- Sets the minimum lambda the line search will tolerate-snes_linesearch_monitor - print information about progress of line searches
-snes_linesearch_damping - damping factor used for basic line search
Note#
This is the default nonlinear solver in SNES
See Also#
SNES: Nonlinear Solvers, SNESCreate()
, SNES
, SNESSetType()
, SNESNEWTONTR
, SNESQN
, SNESLineSearchSetType()
, SNESLineSearchSetOrder()
SNESLineSearchSetPostCheck()
, SNESLineSearchSetPreCheck()
SNESLineSearchSetComputeNorms()
, SNESGetLineSearch()
Level#
beginner
Location#
Examples#
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages