#include "petscsnes.h" PetscErrorCode SNESLineSearchSetFromOptions(SNESLineSearch linesearch)
| -snes_linesearch_type <type> | - basic, bt, l2, cp, nleqerr, shell | |
| -snes_linesearch_order <order> | - 1, 2, 3. Most types only support certain orders (bt supports 2 or 3) | |
| -snes_linesearch_norms | - Turn on/off the linesearch norms for the basic linesearch typem (SNESLineSearchSetComputeNorms()) | |
| -snes_linesearch_minlambda | - The minimum step length | |
| -snes_linesearch_maxstep | - The maximum step size | |
| -snes_linesearch_rtol | - Relative tolerance for iterative line searches | |
| -snes_linesearch_atol | - Absolute tolerance for iterative line searches | |
| -snes_linesearch_ltol | - Change in lambda tolerance for iterative line searches | |
| -snes_linesearch_max_it | - The number of iterations for iterative line searches | |
| -snes_linesearch_monitor [:filename] | - Print progress of line searches | |
| -snes_linesearch_monitor_solution_update [viewer:filename:format] | - view each update tried by line search routine | |
| -snes_linesearch_damping | - The linesearch damping parameter | |
| -snes_linesearch_keeplambda | - Keep the previous search length as the initial guess. | |
| -snes_linesearch_precheck_picard | - Use precheck that speeds up convergence of picard method | |
| -snes_linesearch_precheck_picard_angle | - Angle used in Picard precheck method |
Logically Collective on SNESLineSearch