-snes_linesearch [bt,basic] | - Selects line search | |
-snes_linesearch_order[quadratic,cubic] | - Selects the order of the line search for bt | |
-snes_linesearch_norms<true> | - Turns on/off computation of the norms for basic | |
-snes_linesearch_alpha<alpha> | - Sets alpha used in determining if reduction in function norm is sufficient | |
-snes_linesearch_maxstep<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<minlambda> | - Sets the minimum lambda the line search will use minlambda / max_i ( y[i]/x[i] ) | |
-snes_linesearch_monitor | - print information about progress of line searches | |
-snes_linesearch_damping | - damping factor used for basic line search |
Notes: This is the default nonlinear solver in SNES
Level:beginner
Location:src/snes/impls/ls/ls.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages