SNESLineSearchSetOrder#
Sets the maximum order of the polynomial fit used in the line search
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESLineSearchSetOrder(SNESLineSearch linesearch, PetscInt order)
Input Parameters#
linesearch - the line search context
order - The order
Values for order:
1 or
SNES_LINESEARCH_ORDER_LINEAR- linear order2 or
SNES_LINESEARCH_ORDER_QUADRATIC- quadratic order3 or
SNES_LINESEARCH_ORDER_CUBIC- cubic order
Options Database Key#
-snes_linesearch_order
- 1, 2, 3. Most types only support certain orders (SNESLINESEARCHBTsupports 2 or 3)
Note#
These orders are supported by SNESLINESEARCHBT and SNESLINESEARCHCP
See Also#
SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESLineSearchGetOrder(), SNESLineSearchSetDamping()
Level#
intermediate
Location#
src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
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